2022 VW Transporter T6.1 - Stop start system doesn't always work

   #1  

BRABUS

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VCDS Serial number
C?ID=610475
Hello everyone, this is my first post here so please be gentle and I will take any guidance or advice on etiquette that I get wrong.

Ok so we have a 2022 VW transport T6.1 This car was running perfectly until it went into the main dealer for some routine work. The car was having the following work items done due to age and mileage.

  1. Brake fluid flush and replace
  2. Automatic gearbox fluid flush and replace
Before the car went in as I said, it worked perfectly for 38,000 miles. From the moment it came out of the garage the stop start refused to work. We contacted the garage and they had it back in a couple of weeks later. We did ask if the battery was at fault and possibly causing the issue (we had done some googling) because this car is adapted for large powered wheelchairs and so has an electric sliding side step on the drivers door and also a heavy duty lift in the rear through which wheelchairs enter. The lift will only operate when the engine is off and the keys out of the ignition so I imagine the battery takes a beating. Both my wife and I are disabled so this car is essential for us to be able to get around.

The garage reported back that the battery tested fine and that the stop start worked every time and that as there were no error codes they could do no more. Call me cynical but this was 1 week before the manufacturers warranty expired. Anyway we collected the car and guess what, once again even from leaving the dealership, the stop start didn't work. They tried to tell us all sorts of things like stop start doesn't work if the aircon is on (well its always worked on fan speed 1 previously) and also that it also doesn't work if the steering wheel isn't straight (what the heck - well that's a new one on me lol). Ok we thought what the heck we will follow what they said and guess what, stop start doesn't work with the aircon off and the steering wheel straight. We sent them videos and they told us that as the car has no fault codes that there is nothing they can do and that a video is not evidence of a fault.

Ok so I thought I would splash out (cant afford to really but now we don't trust the dealer) on VCDS as you hear so many good things. Tonight I have just done a full autoscan. I did it with the engine off and also the engine running. I will include below the full scan with the engine off but can just as easily upload the other one if it is helpful to do so.

Code:
Monday,28,April,2025,20:12:08:24231
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 25.3.1.1 (x64)  HEX-V2 CB: 0.4671.5
Data version: 20250415 DS365.0
www.Ross-Tech.com


VIN: WV2ZZZ7HZNH027204   License Plate: #######
Mileage: 64042km-39793mi   Repair Order:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 7H-VN46 (3Q0)
Scan: 01 02 03 08 09 10 13 15 17 18 19 3D 44 5F 69 6D 75 BB BC BE
          BF

VIN: WV2ZZZ7HZNH027204   Mileage: 64042km-39793miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
10-Park/Steer Assist -- Status: OK 0000
13-Auto Dist. Reg -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
17-Instruments -- Status: Malfunction 0010
18-Aux. Heat -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
3D-Special Function -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
69-Trailer -- Status: OK 0000
6D-Trunk Elect. -- Status: Malfunction 0010
75-Telematics -- Status: OK 0000
BB-Door Rear Drv -- Status: OK 0000
BC-Door Rear Pass -- Status: OK 0000
BE-Slid. Door Rear Left -- Status: OK 0000
BF-Slid. Door Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-DNAA)       Labels:. 05L-907-309-V1.clb
   Part No SW: 05L 906 023 KG    HW: 05L 907 309 F
   Component: R4 2.0l TDI   H80 2671
   Revision: N1H80---    CVN: 1C5B89B5F3218A0EA3C795CF64CF85E9A3C795CF43FB2DAA
   Coding: 0025003C0374050800000000000000000000000000000000
   Shop #: WSC 34927 004 1048576
   ASAM Dataset: EV_ECM20TDI01105L906023KG 006002
   ROD: EV_ECM20TDI01105L906023JQ.rod
   VCID: 77AC34192F48AEC2BE0-8022
   VINID: 9E60AAAAA1D8A9E600087080104F908918

1 Fault Found:
40258 - Internal Control Module
          P0606 00 [00100000] - Processor Fault
          [ECM/PCM Processor]
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 17
                    Mileage: 63345 km
                    Date: 2025.04.03
                    Time: 06:54:56

                    Engine speed: 1067.00 /min
                    Normed load value: 17.3 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 8 °C
                    Intake air temperature: 6 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 11.220 V
                    Unlearning counter according OBD: 17
                    Engine status: COENG_RUNNING
                    Engine status-Test_Program_Co Eng st COMPU VERB UBYTE: 3

Readiness: 0 0 0 0 0

-------------------------------------------------------------------------------
Address 02: Auto Trans (J743)       Labels:. 0BH-927-711.clb
   Part No SW: 0DV 300 046 B    HW: 0GC 927 711 H
   Component: GSG DQ500     H06 3701
   Revision: 00H06V13    CVN: EFAF991A
   Coding: 0014
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_TCMDQ500021 001001
   ROD: EV_TCMDQ500021.rod
   VCID: 3928F22159DC78B2884-806C

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: 7LX-614-517-V1.clb
   Part No SW: 7LA 614 517 B    HW: 7LA 614 517
   Component: ESC_high      H01 0800
   Serial number: 08504112210916
   Coding: 115527524A49E68C8856E4A4526A6726393724B8
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_Brake1ESP90iBOSCHVN46X 003012
   ROD: EV_Brake1ESP90iBOSCHVN46X_003.rod
   VCID: 3E22E13D40F25F8ABD6-806A

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:* Redir Fail!
   Part No SW: 7LA 907 040 D    HW: 7LA 907 040 D
   Component: Climatronic   H01 0602
   Coding: B031100008102300010009005040010500000000000B0101A08000000000
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_AirCondiBHTCVN54XT6PA 001002
   ROD: EV_AirCondiBHTCVN54XT6PA_VN46.rod
   VCID: 3C26EB3556EE4D9A932-8068

   Rear air conditioning block 1:
   Subsystem 1 - Part No SW: 7LA 907 049 F    HW: 7LA 907 049 F
   Component: E857  H02 0301
   Serial number: 00002067342611250212
   Coding: 000000

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 5Q0-937-08X-V2.clb
   Part No SW: 2Q0 937 090 D    HW: 2Q0 937 090 C
   Component: BCM A0 Std+   H12 0954
   Serial number: 01102126300468 Dataset Number: V03935359SV 0001
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_BCMA0 207001
   ROD: EV_BCMA0_207_VW27.rod
   VCID: 3334C0097BB082E2428-8066

   Rain/Light Recognition Sensor:
   Subsystem 1 - Part No SW: 5Q0 955 559 C    HW: 5Q0 955 559 C  Labels: 5Q0-955-547.CLB
   Component: RLS  054 0206
   Serial number: S6Y21M08D09H11M46S06
   Coding: 0018DD

   Driver door control module:
   Subsystem 2 - Part No SW: 7L1 959 405     HW: 7L1 959 163
   Component: FHSG_DRV  001 0002
   Serial number: 00000000000051475238
   Coding: 1F0000

   Front passenger door control module:
   Subsystem 3 - Part No SW: 7L1 959 406     HW: 7L1 959 164
   Component: FHSG_PSG  001 0002
   Serial number: 00000000000052673391
   Coding: 050000

   Anti-theft alarm system sensor:
   Subsystem 4 - Part No SW: 2N0 951 173 A    HW: 2N0 951 173 B
   Component: Sensor, DWA  014 0403
   Serial number: 000000000ZM21246JKE0

   Alarm horn:
   Subsystem 5 - Part No SW: 5Q0 951 605 A    HW: 5Q0 951 605 A
   Component: Sirene, DWA  005 0314
   Serial number: 00000000000049967123

2 Faults Found:
608524 - Rotary Latch Motor for Sliding Door; Rear Driver Side
          B1A72 F0 [00001000] - Electrical Malfunction
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 4
                    Fault Frequency: 6
                    Reset counter: 252
                    Mileage: 63081 km
                    Date: 2025.03.28
                    Time: 06:49:47

                    Zusaetzliche Umgebungsdaten-Terminal 15 status: OFF
                    Zusaetzliche Umgebungsdaten-Terminal 50 status: OFF
                    Zusaetzliche Umgebungsdaten-Low beam: Not operated
                    Zusaetzliche Umgebungsdaten-OFF: Not operated
                    Zusaetzliche Umgebungsdaten-Outside temperature: -50.0 °C
                    Zusaetzliche Umgebungsdaten-Automatic high beam assist: operated
                    Zusaetzliche Umgebungsdaten-Position lamps: Not operated
                    Zusaetzliche Umgebungsdaten-Parking light left: Not operated
                    Zusaetzliche Umgebungsdaten-Parking light right: Not operated
                    Zusaetzliche Umgebungsdaten-CAN-Bus_aktiv: On
                    Zusaetzliche Umgebungsdaten-last wakeup: keine Stoerschutzursache
                    Zusaetzliche Umgebungsdaten-Status Bremslichtschalter (CAN): OFF
                    Zusaetzliche Umgebungsdaten-Status Bremslichtschalter (HW): OFF
                    Zusaetzliche Umgebungsdaten-voltage measurement: 11.7 V

608780 - Rotary Latch Motor for Sliding Door; Rear Pass. Side
          B1A73 F0 [00001001] - Electrical Malfunction
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 4
                    Fault Frequency: 3
                    Reset counter: 223
                    Mileage: 63145 km
                    Date: 2025.03.28
                    Time: 15:56:48

                    Zusaetzliche Umgebungsdaten-Terminal 15 status: OFF
                    Zusaetzliche Umgebungsdaten-Terminal 50 status: OFF
                    Zusaetzliche Umgebungsdaten-Low beam: Not operated
                    Zusaetzliche Umgebungsdaten-OFF: Not operated
                    Zusaetzliche Umgebungsdaten-Outside temperature: -50.0 °C
                    Zusaetzliche Umgebungsdaten-Automatic high beam assist: Not operated
                    Zusaetzliche Umgebungsdaten-Position lamps: Not operated
                    Zusaetzliche Umgebungsdaten-Parking light left: Not operated
                    Zusaetzliche Umgebungsdaten-Parking light right: Not operated
                    Zusaetzliche Umgebungsdaten-CAN-Bus_aktiv: On
                    Zusaetzliche Umgebungsdaten-last wakeup: keine Stoerschutzursache
                    Zusaetzliche Umgebungsdaten-Status Bremslichtschalter (CAN): OFF
                    Zusaetzliche Umgebungsdaten-Status Bremslichtschalter (HW): OFF
                    Zusaetzliche Umgebungsdaten-voltage measurement: 12.2 V


-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:| 5Q0-919-294.clb
   Part No SW: 5QA 919 294 J    HW: 5QA 919 294
   Component: PDC 8 Kanal   H08 0073
   Serial number: 000150058321244 Dataset Number: V03935313KK 0001
   Coding: 8459151911
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_EPHVA18AU3700000 009053
   ROD: EV_EPHVA18AU3700000_009_SK25.rod
   VCID: 53F4A089DB70A2E2628-8006

No fault code found.

-------------------------------------------------------------------------------
Address 13: Auto Dist. Reg (J428)       Labels:| 2Q0-907-572.clb
   Part No SW: 2Q0 907 572 R    HW: 2Q0 907 572 B
   Component: ACCCONTIMQB   H03 0372
   Dataset Number: V03935335RG 0001
   Coding: 3200670A01FF8748949C815580508700000000000000000004
   Shop #: WSC 00012 790 00037
   ASAM Dataset: EV_ACCMRRCONTIVW376 003016
   ROD: EV_ACCMRRCONTIVW376_VW41.rod
   VCID: 43D490C92B103262D28-8016

1 Fault Found:
1389 - Function Restricted due to Insufficient Voltage
          U1400 00 [00001000] - -
          [FAULT_VBAT_BUSMON_LOW]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 18
                    Reset counter: 5
                    Mileage: 62922 km
                    Date: 2025.03.23
                    Time: 10:33:55

                    Voltage terminal 15: 10.9 V
                    Control Module temperature: 10 °C
                    Vehicle speed: 0.00 m/s
                    Longitudinal acceleration: -0.09 m/s²
                    Adaptive distance regulation: status: ACC_StandBy


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 2Q0-959-655.clb
   Part No SW: 2Q0 959 655 AQ    HW: 2Q0 959 655 AQ
   Component: VW22Airbag    020 0511
   Revision: --------    Dataset Number: V03935351ZF 0001
   Coding: 88CCC00000000000BC0000CF008C40000065
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_AirbaVW22BPAVW27X 001036
   ROD: EV_AirbaVW22BPAVW27X.rod
   VCID: 0C467BF546CEBD1AE32-8058

   Crash sensor for side airbag: driver side:
   Subsystem 1 - Part No SW: -----------    HW: 442 062 107 21
   Component: SideSensor_Df  1E2 0887
   Serial number: 3577Y5099052CCB1F4DP
   Coding: 2D2D2D

   Crash sensor for side airbag: passenger side:
   Subsystem 2 - Part No SW: -----------    HW: 442 062 107 21
   Component: SideSensor_Pf  1E2 0887
   Serial number: 3587Y50A3052CCB102D4
   Coding: 2D2D2D

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 7LA-920-XXX-V1.clb-SRI3
   Part No SW: 7LA 920 941 A    HW: 7LA 920 941 A
   Component: KOMBI         202 8500
   Coding: 27A40A0A2580260001882A011401000000000000
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_DashBoardVDDMQBAB 009071
   ROD: EV_DashBoardVDDMQBAB_VN46.rod
   VCID: 3E22E13D40F25F8ABD6-806A

1 Fault Found:
16777020 - Function Restricted due to Interrupted Communications
          U1110 00 [00001000] - -
          [BAP_TEL_0x28 keine Kommunikation]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 94
                    Reset counter: 8
                    Mileage: 62906 km
                    Date: 2025.03.21
                    Time: 15:45:30


-------------------------------------------------------------------------------
Address 18: Aux. Heat (J364)       Labels:* Redir Fail!
   Part No SW: 5WA 963 271 C    HW: 5WA 963 271 C
   Component: STH-VW37x     006 0012
   Serial number: 000000000000129
   Coding: 3143221854121512DCE519
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_AuxilHeateWOSVW38X 002009
   ROD: EV_AuxilHeateWOSVW38X_002_VW41.rod
   VCID: 4CC6BBF5064EFD1A232-8018

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:| 3Q0-907-530-V1.clb
   Part No SW: 3Q0 907 530 AL    HW: 3Q0 907 530 E
   Component: GW MQB High   524 5463
   Serial number: 09122310522276 Dataset Number: V03935364EJ 0001
   Coding: 030100344F056A0401100258100F00010001070000000000000000000000
   Shop #: WSC 34924 004 1048576
   GVL: 01443C00081018C0C00080008004C80000000000000000000000000000000000
   ASAM Dataset: EV_GatewNF 013026
   ROD: EV_GatewNF_SK25.rod
   VCID: 79A83221195CB8B2C84-802C

   Generator:
   Component: 5-00-11-00-04

   Multifunction steering wheel control module:
   Subsystem 2 - Part No SW: 3G0 959 442 N    HW: 3G0 959 442 N  Labels: 3C8-959-537.CLB
   Component: E221__MFL-PR6  H07 0110
   Serial number: PR6-0440036291210870
   Coding: 2C0D00

   Battery Monitoring Control Module:
   Subsystem 3 - Part No SW: 7E0 915 181 L    HW: 7E0 915 181 L
   Component: J367-BDMConti  H03 1051
   Serial number: 77197200002109080268

2 Faults Found:
131655 - No Communication with Towing System Control Module (J345)
          U1003 00 [00001000] - -
          [Timeout Knoten 0x47 / 69 - Steuergerät für Anhängererkennung]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 239
                    Mileage: 63361 km
                    Date: 2025.04.03
                    Time: 07:18:39

                    Terminal 30 power supply: 11.9 V
                    Terminal 15: OFF

8531970 - Quiescent Current
          U1406 00 [00001000] - Too High
          [Ruhestrom oberer Grenzwert überschritten]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 7
                    Fault Frequency: 33
                    Reset counter: 5
                    Mileage: 62922 km
                    Date: 2025.03.21
                    Time: 22:51:01

                    Terminal 30 power supply: 12.0 V
                    Terminal 15: OFF


-------------------------------------------------------------------------------
Address 3D: Special Function (J608)       Labels:* Redir Fail!
   Part No SW: 2N0 907 427 R    HW: 2N0 907 427 H
   Component: KFG       H24 0408
   Serial number: GB24213611977 Dataset Number: V03935349WS 0001
   Coding: 0000200000000000020000080000000000000000
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_SpeciFunctFlextVN54X 008036
   ROD: EV_SpeciFunctFlextVN54X_008_VN3S.rod
   VCID: 3FDC9C3947F85682B60-806A

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 2N0-909-143.clb
   Part No SW: 7LA 909 144 G    HW: 7LA 909 144 D
   Component: EPS_MQB_ZFLS  751 7160
   Dataset Number: V03935340DA 0001
   Coding: 0106
   Shop #: WSC 00012 790 00037
   ASAM Dataset: EV_SteerAssisMNB 002015
   ROD: EV_SteerAssisMNB.rod
   VCID: 46D289DD1822074AF56-8012

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:| 5G0-035-MIB-ENT2.clb
   Part No SW: 3CN 035 869 A    HW: 3CN 035 869 A
   Component: MU-E-D-ER     720 0920
   Serial number: 31082100020162 Dataset Number: V03935343RV 0001
   Coding: 06640100BE00000041110101008000001F0000D60000010000
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_MUEnt4CGen2LGE 001044
   ROD: EV_MUEnt4CGen2LGE_VN46.rod
   VCID: 44D693D52E1E355AEB2-8010

No fault code found.

-------------------------------------------------------------------------------
Address 69: Trailer (J345)       Labels:| 5H0-907-383.clb
   Part No SW: 5H0 907 383     HW: 5H0 907 383
   Component: Anhaenger     H09 0040
   Serial number: 000000000005847 Dataset Number: V03935309CF 0001
   Coding: 0100000202001300
   ASAM Dataset: EV_TrailFunctGener3Hella 001009
   ROD: EV_TrailFunctGener3Hella_VW41.rod
   VCID: 6B84186963001A224A8-803E

No fault code found.

-------------------------------------------------------------------------------
Address 6D: Trunk Elect. (J605)       Labels:* None
   Part No SW: 7LA 959 107 A    HW: 4M0 959 107 C
   Component: HDSG-Modul    H14 0673
   Revision: --------    Serial number: A2-C769-9790-3 Dataset Number: V03935307KS 0001
   Coding: 4180
   Shop #: WSC 00012 790 00037
   ASAM Dataset: EV_DeckLidCONTIVN46T 001017
   ROD: EV_DeckLidCONTIVN46T.rod
   VCID: 44D693D52E1E355AEB2-8010

1 Fault Found:
0011 - Function Restricted due to Insufficient Voltage
          U1400 00 [00001000] - -
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 5
                    Date: 2000.00.00
                    Time: 00:00:00

                    Voltage terminal 30: 11.11 V


-------------------------------------------------------------------------------
Address 75: Telematics (J949)       Labels:* None
   Part No SW: 5WA 035 282     HW: 5WA 035 282
   Component: OCUGen3Low    H14 0092
   Serial number: 0000000107NVXF0 Dataset Number: V03935344U  0001
   Coding: 06462000196818208005460160000607
   ASAM Dataset: EV_OCUGen3Low 002036
   ROD: EV_OCUGen3Low_002_VW27.rod
   VCID: 01585AC1718CE072804-8054

No fault code found.

-------------------------------------------------------------------------------
Address BB: Door Rear Drv (J1093)       Labels: 7LA-035-593.clb
   Part No SW: 7LA 035 593 A    HW: 7LA 035 593 A
   Component: SLD_Rx-Unit_d H07 0031
   Serial number: 1900E2F7
   Coding: 00
   ASAM Dataset: EV_ReceiRearDriveSideHuf 002002
   ROD: EV_ReceiRearDriveSideHuf.rod
   VCID: 3E22E13D40F25F8ABD6-806A

1 Fault Found:
73750 - Supply voltage
          U1011 00 [01101100] - Voltage too Low
          [Undervoltage_detected]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 3
                    Fault Frequency: 31
                    Reset counter: 29
                    Mileage: 63340 km
                    Date: 2025.04.02
                    Time: 18:36:29


-------------------------------------------------------------------------------
Address BC: Door Rear Pass (J1094)       Labels: 7LA-035-593.clb
   Part No SW: 7LA 035 593 A    HW: 7LA 035 593 A
   Component: SLD_Rx-Unit_p H07 0031
   Serial number: 1900E2B3
   Coding: 00
   ASAM Dataset: EV_ReceiRearPasseSideHuf 002002
   ROD: EV_ReceiRearDriveSideHuf.rod
   VCID: 3E22E13D40F25F8ABD6-806A

1 Fault Found:
73750 - Supply voltage
          U1011 00 [01101100] - Voltage too Low
          [Undervoltage_detected]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 3
                    Fault Frequency: 32
                    Reset counter: 29
                    Mileage: 63377 km
                    Date: 2025.04.04
                    Time: 19:37:38


-------------------------------------------------------------------------------
Address BE: Slid. Door Rear Left (J926)       Labels:| 7LA-959-244.clb
   Part No SW: 7LA 959 244 D    HW: 7LA 959 244 D
   Component: Slidingdoor_d H09 0037
   Serial number: 1800B6C6 Dataset Number: 7LA959244A  0601
   Coding: 12
   ASAM Dataset: EV_SlideDoorDriveHufT6PA 001010
   ROD: EV_SlideDoorDriveHufT6PA_VN46.rod
   VCID: 49C882E1093CE832184-801C

No fault code found.

-------------------------------------------------------------------------------
Address BF: Slid. Door Rear Right (J927)       Labels:| 7LA-959-244.clb
   Part No SW: 7LA 959 244 D    HW: 7LA 959 244 D
   Component: Slidingdoor_p H09 0037
   Serial number: 1800B830 Dataset Number: 7LA959244A  0601
   Coding: 12
   ASAM Dataset: EV_SlideDoorPasseHufT6PA 001010
   ROD: EV_SlideDoorPasseHufT6PA_VN46.rod
   VCID: 49C882E1093CE832184-801C

No fault code found.

End----------(Elapsed Time: 01:37, VBatt start/end: 12.2V/12.2V)-----------
------------------------------10 Faults Found------------------------------
 
   #2  

Uwe

Benevolent Dictator
Administrator
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Messages
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Location
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VCDS Serial number
HC100001
40258 - Internal Control Module
P0606 00 [00100000] - Processor Fault
[ECM/PCM Processor]
That's scary!

In addition, you have several under-voltage faults in various modules in this van. It's entirely expected that start/stop won't work if the battery's state-of-charge is not sufficient.

Somewhere there are likely to measuring values that indicate what prevented start/stop from working for the last some number of times, but I'm not sure where to look for them. Maybe the Gateway?

[time passes]

Nope, not a whole lot in there. ECU?

[time passes]

IDE03010 (There's a bunch of them, with reasons. I'd look for higher numbers).

There's other things you can look at too, but I'd start there.

-Uwe-
 
   #3  

BRABUS

Verified VCDS User
Verified
Joined
Apr 17, 2025
Messages
20
Reaction score
4
Location
England, UK
VCDS Serial number
C?ID=610475
That's scary!

In addition, you have several under-voltage faults in various modules in this van. It's entirely expected that start/stop won't work if the battery's state-of-charge is not sufficient.

Somewhere there are likely to measuring values that indicate what prevented start/stop from working for the last some number of times, but I'm not sure where to look for them. Maybe the Gateway?

[time passes]

Nope, not a whole lot in there. ECU?

[time passes]

IDE03010 (There's a bunch of them, with reasons. I'd look for higher numbers).

There's other things you can look at too, but I'd start there.

-Uwe-

Thanks for the reply @Uwe. So my wife and I might not have been far off with the battery idea potentially?

We have been on a few trips of hundreds of miles with no stopping and so would expect the battery to be fully topped up and even after such a trip without using the lift the stop start will not work.

As for hunting for issues myself, I am not allowed to work on the car (even if I could these days) as it is leased through a charity here in the UK. I am not allowed to even top up the oil, I can only put diesel in it and screen wash.
As for the rest of what you said please can you explain it like I am six years old lol as this is all new to me.
 
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   #4  

Uwe

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As for the rest of what you said please can you explain it like I am six years old lol as this is all new to me.
In VCDS:

[Select]
[01-Engine]
[Adv. Meas. Values]

That will take you here:

Put IDE03010 in the search/filter box of the selection screen (where you see time in the second screen-shot on that page).

Or just make and post a Channel Map of the Measuring Values in your ECU.

-Uwe-
 
   #5  

Eric

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with
Code:
8531970 - Quiescent Current
          U1406 00 [00001000] - Too High
in the gateway at a frequency of 33, it may also be upset and refuse to do start-stop. I'd clear it and see how quickly it comes back. When was the car at the dealer? I hate when they don't bother putting the battery on a charger when they leave the ignition ON.
 
   #6  

BRABUS

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Isn’t it amazing (almost like someone from the dealership is actually on this forum) but the car has gone back in and the dealer say the battery tests fine and they have conducted a test drive. the test drive lasted just under 8 minutes (the tracker tells all lol) but this time they found some codes mentioning the Can Bus and low voltage. They said “they have reconfigured some settings amd cleared the codes” but they still can’t find a fault with the stop start.

Looking back through the log I uploaded, the first error code is from the same day it last went in, suggests they cleared the codes last time and ignored them.

We will have to see what happens when we collect it today. But how does an 8 minute test drive work, they did a route that doesn’t involve any traffic and and stop start style driving. The tracker did suggest that there were a couple of incidents of aggressive acceleration during that time (through a housing estate). We have never made it show that alert and we don’t exactly hang around or pull out of junctions slowly which makes me think that the test drive they performed was pretty futile.
 
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BRABUS

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Here is the scan just after we collected the car. Today is the hottest day in May ever recorded in the UK so drove the van home with no aircon on and not even the radio (really boring 15 miles) and the stop start never worked once all the way home and there was plenty of stopping in the rush hour traffic. So the car electrical system is not under load caused by me using things while driving.

Hopefully the latest scan below will help someone to point us in the right direction.


Code:
Thursday,01,May,2025,16:35:16:24231
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 25.3.1.1 (x64)  HEX-V2 CB: 0.4671.5
Data version: 20250415 DS365.0
www.Ross-Tech.com


VIN: WV2ZZZ7HZNH027204   License Plate: ####### - ENGINE RUNNING
Mileage: 64112km-39837mi   Repair Order:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 7H-VN46 (3Q0)
Scan: 01 02 03 08 09 10 13 15 17 18 19 3D 44 5F 69 6D 75 BB BC BE
          BF

VIN: WV2ZZZ7HZNH027204   Mileage: 64112km-39837miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
10-Park/Steer Assist -- Status: OK 0000
13-Auto Dist. Reg -- Status: OK 0000
15-Airbags -- Status: OK 0000
17-Instruments -- Status: Malfunction 0010
18-Aux. Heat -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
3D-Special Function -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
69-Trailer -- Status: OK 0000
6D-Trunk Elect. -- Status: OK 0000
75-Telematics -- Status: OK 0000
BB-Door Rear Drv -- Status: OK 0000
BC-Door Rear Pass -- Status: OK 0000
BE-Slid. Door Rear Left -- Status: OK 0000
BF-Slid. Door Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-DNAA)       Labels:. 05L-907-309-V1.clb
   Part No SW: 05L 906 023 KG    HW: 05L 907 309 F
   Component: R4 2.0l TDI   H80 2671 
   Revision: N1H80---    CVN: 1C5B89B5F3218A0EA3C795CF64CF85E9A3C795CF43FB2DAA
   Coding: 0025003C0374050800000000000000000000000000000000
   Shop #: WSC 34927 004 1048576
   ASAM Dataset: EV_ECM20TDI01105L906023KG 006002
   ROD: EV_ECM20TDI01105L906023JQ.rod
   VCID: 77AC34192F48AEC2BE0-8022
   VINID: 9E60AAAAA1D8A9E600087080104F908918

No fault code found.
Readiness: 0 0 0 0 0

-------------------------------------------------------------------------------
Address 02: Auto Trans (J743)       Labels:. 0BH-927-711.clb
   Part No SW: 0DV 300 046 B    HW: 0GC 927 711 H
   Component: GSG DQ500     H06 3701 
   Revision: 00H06V13    CVN: EFAF991A
   Coding: 0014
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_TCMDQ500021 001001
   ROD: EV_TCMDQ500021.rod
   VCID: 3928F22159DC78B2884-806C

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels: 7LX-614-517-V1.clb
   Part No SW: 7LA 614 517 B    HW: 7LA 614 517
   Component: ESC_high      H01 0800 
   Serial number: 08504112210916
   Coding: 115527524A49E68C8856E4A4526A6726393724B8
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_Brake1ESP90iBOSCHVN46X 003012
   ROD: EV_Brake1ESP90iBOSCHVN46X_003.rod
   VCID: 3E22E13D40F25F8ABD6-806A

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:* Redir Fail!
   Part No SW: 7LA 907 040 D    HW: 7LA 907 040 D
   Component: Climatronic   H01 0602 
   Coding: B031100008102300010009005040010500000000000B0101A08000000000
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_AirCondiBHTCVN54XT6PA 001002
   ROD: EV_AirCondiBHTCVN54XT6PA_VN46.rod
   VCID: 3C26EB3556EE4D9A932-8068

   Rear air conditioning block 1:
   Subsystem 1 - Part No SW: 7LA 907 049 F    HW: 7LA 907 049 F
   Component: E857  H02 0301
   Serial number: 00002067342611250212
   Coding: 000000

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 5Q0-937-08X-V2.clb
   Part No SW: 2Q0 937 090 D    HW: 2Q0 937 090 C
   Component: BCM A0 Std+   H12 0954 
   Serial number: 01102126300468 Dataset Number: V03935359SV 0001
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_BCMA0 207001
   ROD: EV_BCMA0_207_VW27.rod
   VCID: 3334C0097BB082E2428-8066

   Rain/Light Recognition Sensor:
   Subsystem 1 - Part No SW: 5Q0 955 559 C    HW: 5Q0 955 559 C  Labels: 5Q0-955-547.CLB
   Component: RLS  054 0206
   Serial number: S6Y21M08D09H11M46S06
   Coding: 0018DD

   Driver door control module:
   Subsystem 2 - Part No SW: 7L1 959 405     HW: 7L1 959 163
   Component: FHSG_DRV  001 0002
   Serial number: 00000000000051475238
   Coding: 1F0000

   Front passenger door control module:
   Subsystem 3 - Part No SW: 7L1 959 406     HW: 7L1 959 164
   Component: FHSG_PSG  001 0002
   Serial number: 00000000000052673391
   Coding: 050000

   Anti-theft alarm system sensor:
   Subsystem 4 - Part No SW: 2N0 951 173 A    HW: 2N0 951 173 B
   Component: Sensor, DWA  014 0403
   Serial number: 000000000ZM21246JKE0

   Alarm horn:
   Subsystem 5 - Part No SW: 5Q0 951 605 A    HW: 5Q0 951 605 A
   Component: Sirene, DWA  005 0314
   Serial number: 00000000000049967123

No fault code found.

-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:| 5Q0-919-294.clb
   Part No SW: 5QA 919 294 J    HW: 5QA 919 294
   Component: PDC 8 Kanal   H08 0073 
   Serial number: 000150058321244 Dataset Number: V03935313KK 0001
   Coding: 8459151911
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_EPHVA18AU3700000 009053
   ROD: EV_EPHVA18AU3700000_009_SK25.rod
   VCID: 53F4A089DB70A2E2628-8006

No fault code found.

-------------------------------------------------------------------------------
Address 13: Auto Dist. Reg (J428)       Labels:| 2Q0-907-572.clb
   Part No SW: 2Q0 907 572 R    HW: 2Q0 907 572 B
   Component: ACCCONTIMQB   H03 0372 
   Dataset Number: V03935335RG 0001
   Coding: 3200670A01FF8748949C815580508700000000000000000004
   Shop #: WSC 00012 790 00037
   ASAM Dataset: EV_ACCMRRCONTIVW376 003016
   ROD: EV_ACCMRRCONTIVW376_VW41.rod
   VCID: 43D490C92B103262D28-8016

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 2Q0-959-655.clb
   Part No SW: 2Q0 959 655 AQ    HW: 2Q0 959 655 AQ
   Component: VW22Airbag    020 0511 
   Revision: --------    Dataset Number: V03935351ZF 0001
   Coding: 88CCC00000000000BC0000CF008C40000065
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_AirbaVW22BPAVW27X 001036
   ROD: EV_AirbaVW22BPAVW27X.rod
   VCID: 0C467BF546CEBD1AE32-8058

   Crash sensor for side airbag: driver side:
   Subsystem 1 - Part No SW: -----------    HW: 442 062 107 21
   Component: SideSensor_Df  1E2 0887
   Serial number: 3577Y5099052CCB1F4DP
   Coding: 2D2D2D

   Crash sensor for side airbag: passenger side:
   Subsystem 2 - Part No SW: -----------    HW: 442 062 107 21
   Component: SideSensor_Pf  1E2 0887
   Serial number: 3587Y50A3052CCB102D4
   Coding: 2D2D2D

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 7LA-920-XXX-V1.clb-SRI3
   Part No SW: 7LA 920 941 A    HW: 7LA 920 941 A
   Component: KOMBI         202 8500 
   Coding: 27A40A0A2580260001882A011401000000000000
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_DashBoardVDDMQBAB 009071
   ROD: EV_DashBoardVDDMQBAB_VN46.rod
   VCID: 3E22E13D40F25F8ABD6-806A

1 Fault Found:
16777020 - Function Restricted due to Interrupted Communications
          U1110 00 [00001000] - -
          [BAP_TEL_0x28 keine Kommunikation]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 12
                    Mileage: 64097 km
                    Date: 2025.05.01
                    Time: 15:55:36


-------------------------------------------------------------------------------
Address 18: Aux. Heat (J364)       Labels:* Redir Fail!
   Part No SW: 5WA 963 271 C    HW: 5WA 963 271 C
   Component: STH-VW37x     006 0012 
   Serial number: 000000000000129
   Coding: 3143221854121512DCE519
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_AuxilHeateWOSVW38X 002009
   ROD: EV_AuxilHeateWOSVW38X_002_VW41.rod
   VCID: 4CC6BBF5064EFD1A232-8018

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:| 3Q0-907-530-V1.clb
   Part No SW: 3Q0 907 530 AL    HW: 3Q0 907 530 E
   Component: GW MQB High   524 5463 
   Serial number: 09122310522276 Dataset Number: V03935364EJ 0001
   Coding: 030100344F056A0401100258100F00010001070000000000000000000000
   Shop #: WSC 34927 004 1048576
   GVL: 01443C00081018C0C00080008004C80000000000000000000000000000000000
   ASAM Dataset: EV_GatewNF 013026
   ROD: EV_GatewNF_SK25.rod
   VCID: 79A83221195CB8B2C84-802C

   Generator:
   Component: 5-00-11-00-04 

   Multifunction steering wheel control module:
   Subsystem 2 - Part No SW: 3G0 959 442 N    HW: 3G0 959 442 N  Labels: 3C8-959-537.CLB
   Component: E221__MFL-PR6  H07 0110
   Serial number: PR6-0440036291210870
   Coding: 2C0D00

   Battery Monitoring Control Module:
   Subsystem 3 - Part No SW: 7E0 915 181 L    HW: 7E0 915 181 L
   Component: J367-BDMConti  H03 1051
   Serial number: 77197200002109080268

1 Fault Found:
8531970 - Quiescent Current
          U1406 00 [00001000] - Too High
          [Ruhestrom oberer Grenzwert überschritten]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 12
                    Mileage: 64097 km
                    Date: 2025.04.30
                    Time: 20:41:36

                    Terminal 30 power supply: 11.9 V
                    Terminal 15: OFF


-------------------------------------------------------------------------------
Address 3D: Special Function (J608)       Labels:* Redir Fail!
   Part No SW: 2N0 907 427 R    HW: 2N0 907 427 H
   Component: KFG       H24 0408 
   Serial number: GB24213611977 Dataset Number: V03935349WS 0001
   Coding: 0000200000000000020000080000000000000000
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_SpeciFunctFlextVN54X 008036
   ROD: EV_SpeciFunctFlextVN54X_008_VN3S.rod
   VCID: 3FDC9C3947F85682B60-806A

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 2N0-909-143.clb
   Part No SW: 7LA 909 144 G    HW: 7LA 909 144 D
   Component: EPS_MQB_ZFLS  751 7160 
   Dataset Number: V03935340DA 0001
   Coding: 0106
   Shop #: WSC 00012 790 00037
   ASAM Dataset: EV_SteerAssisMNB 002015
   ROD: EV_SteerAssisMNB.rod
   VCID: 46D289DD1822074AF56-8012

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:| 5G0-035-MIB-ENT2.clb
   Part No SW: 3CN 035 869 A    HW: 3CN 035 869 A
   Component: MU-E-D-ER     720 0920 
   Serial number: 31082100020162 Dataset Number: V03935343RV 0001
   Coding: 06640100BE00000041110101008000001F0000D60000010000
   Shop #: WSC 00012 790 00077
   ASAM Dataset: EV_MUEnt4CGen2LGE 001044
   ROD: EV_MUEnt4CGen2LGE_VN46.rod
   VCID: 44D693D52E1E355AEB2-8010

No fault code found.

-------------------------------------------------------------------------------
Address 69: Trailer (J345)       Labels:| 5H0-907-383.clb
   Part No SW: 5H0 907 383     HW: 5H0 907 383
   Component: Anhaenger     H09 0040 
   Serial number: 000000000005847 Dataset Number: V03935309CF 0001
   Coding: 0100000202001300
   ASAM Dataset: EV_TrailFunctGener3Hella 001009
   ROD: EV_TrailFunctGener3Hella_VW41.rod
   VCID: 6B84186963001A224A8-803E

No fault code found.

-------------------------------------------------------------------------------
Address 6D: Trunk Elect. (J605)       Labels:* None
   Part No SW: 7LA 959 107 A    HW: 4M0 959 107 C
   Component: HDSG-Modul    H14 0673 
   Revision: --------    Serial number: A2-C769-9790-3 Dataset Number: V03935307KS 0001
   Coding: 4180
   Shop #: WSC 00012 790 00037
   ASAM Dataset: EV_DeckLidCONTIVN46T 001017
   ROD: EV_DeckLidCONTIVN46T.rod
   VCID: 44D693D52E1E355AEB2-8010

No fault code found.

-------------------------------------------------------------------------------
Address 75: Telematics (J949)       Labels:* None
   Part No SW: 5WA 035 282     HW: 5WA 035 282
   Component: OCUGen3Low    H14 0092 
   Serial number: 0000000107NVXF0 Dataset Number: V03935344U  0001
   Coding: 06462000196818208005460160000607
   ASAM Dataset: EV_OCUGen3Low 002036
   ROD: EV_OCUGen3Low_002_VW27.rod
   VCID: 01585AC1718CE072804-8054

No fault code found.

-------------------------------------------------------------------------------
Address BB: Door Rear Drv (J1093)       Labels: 7LA-035-593.clb
   Part No SW: 7LA 035 593 A    HW: 7LA 035 593 A
   Component: SLD_Rx-Unit_d H07 0031 
   Serial number: 1900E2F7
   Coding: 00
   ASAM Dataset: EV_ReceiRearDriveSideHuf 002002
   ROD: EV_ReceiRearDriveSideHuf.rod
   VCID: 3E22E13D40F25F8ABD6-806A

No fault code found.

-------------------------------------------------------------------------------
Address BC: Door Rear Pass (J1094)       Labels: 7LA-035-593.clb
   Part No SW: 7LA 035 593 A    HW: 7LA 035 593 A
   Component: SLD_Rx-Unit_p H07 0031 
   Serial number: 1900E2B3
   Coding: 00
   ASAM Dataset: EV_ReceiRearPasseSideHuf 002002
   ROD: EV_ReceiRearDriveSideHuf.rod
   VCID: 3E22E13D40F25F8ABD6-806A

No fault code found.

-------------------------------------------------------------------------------
Address BE: Slid. Door Rear Left (J926)       Labels:| 7LA-959-244.clb
   Part No SW: 7LA 959 244 D    HW: 7LA 959 244 D
   Component: Slidingdoor_d H09 0037 
   Serial number: 1800B6C6 Dataset Number: 7LA959244A  0601
   Coding: 12
   ASAM Dataset: EV_SlideDoorDriveHufT6PA 001010
   ROD: EV_SlideDoorDriveHufT6PA_VN46.rod
   VCID: 49C882E1093CE832184-801C

No fault code found.

-------------------------------------------------------------------------------
Address BF: Slid. Door Rear Right (J927)       Labels:| 7LA-959-244.clb
   Part No SW: 7LA 959 244 D    HW: 7LA 959 244 D
   Component: Slidingdoor_p H09 0037 
   Serial number: 1800B830 Dataset Number: 7LA959244A  0601
   Coding: 12
   ASAM Dataset: EV_SlideDoorPasseHufT6PA 001010
   ROD: EV_SlideDoorPasseHufT6PA_VN46.rod
   VCID: 49C882E1093CE832184-801C

No fault code found.

End----------(Elapsed Time: 01:35, VBatt start/end: 13.2V/13.3V)-----------
------------------------------2 Faults Found-------------------------------
 
   #8  

Uwe

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Hopefully the latest scan below will help someone to point us in the right direction.
Not really, but the data I asked for in post numbers 2 and 4 might.

-Uwe-
 
   #9  

TTT

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also that it also doesn't work if the steering wheel isn't straight (what the heck - well that's a new one on me lol).

This is actually true.
 
   #10  

BRABUS

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This is actually true.
I find that odd because for the first 38k miles the stop start has worked no matter what angle the steering wheel is at. In fact I mentioned it on a T6.1 forum and they all thought it was odd as all of their’s also work even if the wheel isn’t straight.

I mentioned it to a friend who has an Audi Q5 and an A3 and her and her husband were intrigued so tested it and theirs also works even when not straight.


So is the official VAG group line that it won’t work unless the wheel is straight but customer experiences say otherwise, I am confused now.
 
   #11  

BRABUS

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Not really, but the data I asked for in post numbers 2 and 4 might.

-Uwe-
Sorry @Uwe i had just driven 15 miles in 28 degrees C heat with no aircon (to prove if stop start was working) and I was not feeling great and making a basic scan was about all I could manage. I will follow the links in your post to the reading and learning material and then I will run a test. If I can get my head round it in time I can do it for a long journey this weekend.
 
   #12  

Uwe

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If I can get my head round it in time I can do it for a long journey this weekend.
You don't need make any "journey " in order to pull that data.

-Uwe-
 
   #13  

davisev5225

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Have a look here, especially the later posts, and check all the wiring going to/from the sensor on your negative battery terminal. It's entirely possible that you're having the same issue I did, in that the CAN Gateway can't properly read your battery voltage & state of charge due to a loose connection. Importantly, every time I had A/C issues, I also lost my start/stop functionality.

https://forums.ross-tech.com/index.php?threads/43825/
 
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   #16  

TTT

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It's from my car. OP is thinking dealer is pulling one on him that steering angle cannot disable start stop.
 
   #17  

BRABUS

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It's from my car. OP is thinking dealer is pulling one on him that steering angle cannot disable start stop.
I don’t think they are pulling one, I just think it’s odd that it always worked previously regardless of the steering wheel being straight or turned. Even with the steering wheel straight and the aircon tired off we the stop start is not working properly.
 
   #18  

BRABUS

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Have a look here, especially the later posts, and check all the wiring going to/from the sensor on your negative battery terminal. It's entirely possible that you're having the same issue I did, in that the CAN Gateway can't properly read your battery voltage & state of charge due to a loose connection. Importantly, every time I had A/C issues, I also lost my start/stop functionality.

https://forums.ross-tech.com/index.php?threads/43825/
It is quite possible it is a loose wire or even a damaged one as the problem only started after they did the brake fluid flush and the auto gearbox oil and filter change. I read somewhere that there is a canbus wire near the auto box that may have been damaged while they changed the oil and filter. There is no way I am going to be able to get to that to look for that though.
 
   #19  

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VCDS Serial number
C?ID=547002
I don’t think they are pulling one, I just think it’s odd that it always worked previously regardless of the steering wheel being straight or turned. Even with the steering wheel straight and the aircon tired off we the stop start is not working properly.
Have you provided data which Uwe asked, if not, what are your expectations here then?
 
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