Audi Q7 2013 02645 - Valves for Level Control System 003 - Mechanical Failure

   #1  

FioranoCars

Verified VCDS User
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VCDS Serial number
C?ID=68608
Hi
I have read the wiki and a few other posts about this issue and get the general gist of what's been said about it's all in the title, namely mechanical failure! But ...
The problem appears to be intermittent and while stationary (not faulting) and driving we've so far been unable to capture any parameter to give us a clue about which component might be at fault.
We've tried soapy water, and will do again more carefully today, but if the fault is not occuring while stationary then even if it is a leak, then we're unlikely to find it this way?

The module has no label file, or coding options ... so would you like a scan of these? Please email me and I'll generate.

I assume the module is not UDS as option 8 is available, but this info is not stored in the error/log files (would that be a useful addition?) as offline right now.

The car also had an error 01577 High temperature cut out, but that has not come back. Using a different tool which had the menu option to cycle the system, this completed ok, but took a while to "pump up" in the first instance, would this be that the errors (well the 01577) was inhibiting the pump?

Not knowing the strategy of the error and which components are being plausibly verified or otherwise and as we don't have wiring for the sensor or controller, or a factory/other test plan, we're a little in the dark ... so any tips or pointers on these would be helpful ...

Here is the data from the car:
Code:
Monday,13,August,2018,17:58:21:48085VCDS Version: Beta 18.7.1 (x64) Running on Windows 10 x64
www.Ross-Tech.com


                Address 34: Level Control       Labels: NONE
Control Module Part Number: 4L0 910 553 L    HW: 4L0 907 553 E
  Component and/or Version: LUFTFDR.-CDC    H04 7890
           Software Coding: 0015510
            Work Shop Code: WSC 31414 790 00001
                      VCID: 3326C944528EBDD2D9-8066
1 Fault Found:


02645 - Valves for Level Control System 
            003 - Mechanical Failure - Intermittent
             Freeze Frame:
                    Fault Status: 00100011
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 69
                    Mileage: 70905 km
                    Time Indication: 0
                    Date: 2018.08.13
                    Time: 14:55:46


             Freeze Frame:
                    Error Code: 141

The ECU identification:
Code:
Monday,13,August,2018,17:57:42:48085VCDS Version: Beta 18.7.1 (x64)
                Address 34: Level Control
Control Module Part Number: 4L0 910 553 L
  Component and/or Version: LUFTFDR.-CDC    H04 7890
           Software Coding: 0015510
            Work Shop Code: WSC 31414
                      VCID: 3326C944528EBDD2D9-8066


Advanced Identification
     Serial number: 15.1528-0194.2
     Identification: TF7-003
     Revision: --H04001
     Date: 10.11.12
     Test stand number: 0001
     Manufacturer number: 0335
Flash Status
     Programming Attempts: 1
     Successful Attempts: 1
     Programming Status: 00000000
     Required Conditions: 00000000
     Flash Tool Code: 00000 000 00000
     Flash Date: 10.11.12
Software
     ACAN:  2.5.06 
     ATP20: 2.56.04
     AKWP:  4.5.2  
     AAPPL: 7890
Misc.
     Hardware number: 4L0 907 553 E
     Lot Number:    
     Type Lock:     
VCDS Info:
       VCID: 3326C944528EBDD2D9-8066
       Labels: NONE

Full Read:
Code:
Monday,13,August,2018,17:56:13:48085VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 18.7.1.1 (x64)  HEX-NET CB: 0.4427.4
Data version: 20180731 DS293.0
www.Ross-Tech.com




VIN: WAUZZZ4L6DD023221   License Plate: 




Chassis Type: 4L-AU56 (4F0)
Scan: 01 02 03 05 08 09 10 15 16 17 18 19 34 3D 42 46 4F 52 55 56
          5F 62 6C 6D 6F 72


VIN: WAUZZZ4L6DD023221   Mileage: 70900km-44055miles


01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
10-Park/Steer Assist -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
18-Aux. Heat -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
34-Level Control -- Status: Malfunction 0010
3D-Special Function -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: Malfunction 0010
4F-Centr. Electr. II -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
56-Radio -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
6D-Trunk Elect. -- Status: Malfunction 0010
6F-Centr. Conv. II -- Status: OK 0000
72-Door, Rear Right -- Status: Malfunction 0010
-------------------------------------------------------------------------------
Address 01: Engine (J623-CRCA)       Labels:. 059-907-401-V2.clb
   Part No SW: 4L2 910 401 B    HW: 4L0 907 401 C
   Component: 3.0TDI EDC17  H40 0002  
   Revision: 53H40---    Serial number:               
   Coding: 2A2A4012A52701020000
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_ECM30TDI0114L2910401B 001002
   ROD: EV_ECM30TDI0114L1910401H.rod
   VCID: 230639042A6E2D5229-8076


1 Fault Found:
4795 - Mass Air Flow Sensor (G70) 
          P0101 00 [096] - Implausible Signal
          Intermittent - Not Confirmed - Tested Since Memory Clear


Readiness: 0 0 0 0 0 


-------------------------------------------------------------------------------
Address 02: Auto Trans (J217)       Labels:| 0C8-927-750.clb
   Part No SW: 0C8 927 750 AL    HW: 0C8 927 750 AL
   Component: AL1000 AISIN  002 2096  
   Serial number:               
   Coding: 001578
   Shop #: WSC 57716 001 1048576
   ASAM Dataset: EV_TCMAL991031 002112
   ROD: EV_TCMAL991031_002_AU56.rod
   VCID: 76A03050C97CE8FA3E-8022


No fault code found.


-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels:. 4L0-910-517-V2.clb
   Part No SW: 4L0 910 517 M    HW: 4L0 614 517 L
   Component: ESP ALLRAD MK25E1   0020  
   Revision: 00H02001    
   Coding: 2200689
   Shop #: WSC 31414 790 00001
   VCID: 3424CA585780BAEAC0-8060


No fault code found.


-------------------------------------------------------------------------------
Address 05: Acc/Start Auth.        Labels:. 4F0-910-852.clb
   Part No SW: 4F0 910 852 B    HW: 4F0 905 852 H
   Component: FBSAUDIC6 ELV   H08 0200  
   Revision: 00H08000    Serial number: 10603702036466
   Coding: 0000211
   Shop #: WSC 31414 790 00001
   VCID: 2502271CEC5AD36247-8070


   Subsystem 1 - Part No: 4F0 910 132 E
   Component: FBSAUDIC6 EZS   H04 0020


   Subsystem 2 - Part No: 4F0 910 220 D
   Component: FBSAUDIC6 IDG   H01 0054


No fault code found.


-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels: None
   Part No SW: 4L0 910 043 D    HW: 4L0 820 043 AP
   Component: KLIMA 4 ZONEN H15 0070  
   Revision: 00---031    Serial number: 00000000358057
   Coding: 01009416
   Shop #: WSC 31414 790 00001
   VCID: 2502271C2C5AD36247-8070


No fault code found.


-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 4F0-910-279.lbl
   Part No SW: 4F0 910 279 AH    HW: 4F0 907 279 D
   Component: ILM Fahrer      H31 0400  
   Revision: 00000000    Serial number: 4F0907279     
   Coding: 0033121
   Shop #: WSC 31414 790 00001
   VCID: 6FAE05347E26D932FD-803A


   Subsystem 1 - Part No: 4L2 910 113   Labels: 1KX-955-119.CLB
   Component: Wischer AU716   H13 0110  
   Coding: 00064792
   Shop #: WSC 31414  


   Subsystem 2 - Part No: 8K0 910 557   Labels: 8K0-955-559.CLB
   Component: REGENLICHTSENSORH04 0003  
   Coding: 00150059
   Shop #: WSC 31414  


No fault code found.


-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:| 4L0-919-475-7X2.clb
   Part No SW: 4L0 919 475 A    HW: 4H0 919 475 C
   Component: PARKHILFE 8K  H07 0011  
   Revision: 11001001    Serial number: 55961300201172
   Coding: 24031F
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_EPHVA18AU7160000 001001
   ROD: EV_EPHVA18AU7160000.rod
   VCID: 3424CA589F80BAEAC0-8060


No fault code found.


-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 4L0-910-655.lbl
   Part No SW: 4L0 910 655 D    HW: 4L0 959 655 C
   Component: 71 AIRBAG AUDI8RH44 0230  
   Revision: 05H44000    Serial number: 00399D0C224B  
   Coding: 0014129
   Shop #: WSC 31414 790 00001
   VCID: 2E10D830B9AC903AB6-807A


   Subsystem 1 - Serial number: 6332QSME6728204CG


   Subsystem 2 - Serial number: 6342QSME6028384AH


   Subsystem 3 - Serial number: 6352QSME67284052B


   Subsystem 4 - Serial number: 6362QSME63280F56N


   Subsystem 5 - Serial number: 63734SME682C276EF


   Subsystem 6 - Serial number: 63834SME6829235C6


No fault code found.


-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 4F0-910-549.lbl
   Part No SW: 4F0 910 549 B    HW: 4F0 953 549 E
   Component: J0527               0830  
   Revision: 00H08000    Serial number: 90026123180059
   Coding: 0102142
   Shop #: WSC 31414 790 00001
   VCID: 281C2E289B48CE0A7C-807C


   Subsystem 1 - Part No: XXXXXXXXXXX 
   Component: E0221           H03 0040


No fault code found.


-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:. 4L0-920-xxx-17.clb
   Part No SW: 4L0 920 985 N    HW: 4L0 920 985 N
   Component: KOMBIINSTR.   H35 0316  
   Revision: 00000000    Serial number: NGC20461E     
   Coding: 3356630400012600010404
   Shop #: WSC 31414 790 00001
   VCID: 3FCE9574AEC669B22D-806A


No fault code found.


-------------------------------------------------------------------------------
Address 18: Aux. Heat        Labels: None
   Part No SW: 4L0 910 105     HW: 4L0 815 071 H
   Component: Heizgeraet      H10 0140  
   Revision: 0000000A    Serial number: 00000009024928
   Coding: 0000101
   Shop #: WSC 31414 790 00001
   VCID: 608C7608B3F8764A74-8034


No fault code found.


-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 4F0-907-468.clb
   Part No SW: 4F0 907 468 R    HW: 4F0 907 468 F
   Component: GW-BEM 4CAN-M H06 0058  
   Revision: LB600036    Serial number: 3600L12C18808A
   Coding: 00CF07
   Shop #: WSC 31414 790 00001
   VCID: 3E30E870A9CC60BA26-806A


   Subsystem 1 - Part No SW: 8K0 915 181 D    HW: 8K0 915 181 D
   Component: J367-BDM  H07 0125 
   Serial number: 00000000004120910683


   Subsystem 2 - Part No SW: 8K0 959 663     HW: 8K0 959 663 
   Component: J532_DCDCStab  H17 0042 
   Serial number: 13010001936011200181


No fault code found.


-------------------------------------------------------------------------------
Address 34: Level Control        Labels: None
   Part No SW: 4L0 910 553 L    HW: 4L0 907 553 E
   Component: LUFTFDR.-CDC    H04 7890  
   Revision: --H04001    Serial number: 15.1528-0194.2
   Coding: 0015510
   Shop #: WSC 31414 790 00001
   VCID: 3326C944528EBDD2D9-8066


1 Fault Found:
02645 - Valves for Level Control System 
            003 - Mechanical Failure - Intermittent
             Freeze Frame:
                    Fault Status: 00100011
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 69
                    Mileage: 70905 km
                    Time Indication: 0
                    Date: 2018.08.13
                    Time: 14:55:46


             Freeze Frame:
                    Error Code: 141




-------------------------------------------------------------------------------
Address 3D: Special Function        Labels: 8K0-907-440.clb
   Part No SW: 8K0 907 440     HW: 8K0 907 440 
   Component: STS             H04 0040  
   Revision: S0H04000    Serial number: 00000000072496
   Coding: 01010101000000000001000202
   Shop #: WSC 31414 790 00001
   VCID: 6B9611244A3E2512D1-803E


No fault code found.


-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:. 4F0-959-793.clb
   Part No SW: 4F0 959 793 T    HW: 8K0 959 793 M
   Component: TSG FA        H12 0362  
   Revision:             Serial number: 0000049942577 
   Coding: 011F06205061440004
   Shop #: WSC 31414 790 00001
   VCID: 48DC8EA8FB082E0A9C-801C


No fault code found.


-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 4L0-910-289.lbl
   Part No SW: 4L0 910 289 K    HW: 4L0 907 289 K
   Component: Komfortgeraet   H12 0130  
   Revision: 0130 ---    Serial number: 01893977040000
   Coding: 3809787
   Shop #: WSC 31414 790 00001
   VCID: 383CFE684BE85E8AEC-806C


   Subsystem 1 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HORN H05 1501


   Subsystem 2 - Part No: 4F0 910 177 
   Component: Innenraumueberw.H01 0020


1 Fault Found:
01403 - Glass-Break Sensors; Rear 
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01101011
                    Fault Priority: 3
                    Fault Frequency: 254
                    Reset counter: 29
                    Mileage: 54139 km
                    Time Indication: 0
                    Date: 2017.03.20
                    Time: 17:08:42




-------------------------------------------------------------------------------
Address 4F: Centr. Electr. II        Labels: 4F0-910-280.lbl
   Part No SW: 4F0 910 280     HW: 4F0 907 280 E
   Component: ILM Beifahrer   H16 0100  
   Revision:             Serial number: 00000000324103
   Coding: 0011101
   Shop #: WSC 31414 790 00001
   VCID: 5EF048F0898C40BA46-800A


No fault code found.


-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:. 4F0-959-792.clb
   Part No SW: 4F0 959 792 T    HW: 8K0 959 792 M
   Component: TSG BF        H12 0362  
   Revision:             Serial number: 0000049026121 
   Coding: 011F06205061440004
   Shop #: WSC 31414 790 00001
   VCID: 47DE8D94F616217295-8012


No fault code found.


-------------------------------------------------------------------------------
Address 55: Headlight Range (J431)       Labels:| 8X0-907-357.clb
   Part No SW: 8X0 907 357 C    HW: 8X0 907 357 B
   Component: ****LWR12**** H02 0020  
   Serial number: 130121-0004-061
   Coding: 11476F1010000500
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_HeadlRegulBasic 005001
   ROD: EV_HeadlRegulBasic.rod
   VCID: 42C89C80D534045A42-8016


No fault code found.


-------------------------------------------------------------------------------
Address 56: Radio (R)       Labels: Redir Fail!
   Part No SW: 4G0 035 056 G    HW: 4G0 035 056 
   Component: Radio U STD   H60 0121  
   Revision: AB001007    Serial number: 230A$0D7581896
   Coding: 010003020100000000
   Shop #: WSC 31414 790 00001
   VCID: 2502271C2C5AD36247-8070


No fault code found.


-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
   Part No SW: 4L2 035 670 C    HW: 4L2 035 670 D
   Component: H-BNT-EU      H45 0639  
   Revision: --------    Serial number: 220AX0D7508388
   Coding: 180101060004D3EF010003556F632003040000000100000000
   Shop #: WSC 31414 790 00001
   VCID: 2A18D4204544FC1A6A-807E


   Subsystem 1 - Part No: 8R0 060 884 AR
   Component: ECE 2013  1505 


   Subsystem 2 - Part No SW: 8R0 919 604 A    HW: 8R0 919 604 A
   Component: DU7 High  H42 0104 
   Serial number: A130AM0D2638045     


   Subsystem 3 - Part No SW: 4L0 919 614 B    HW: 4L0 919 614 B
   Component: E0380 Bedient  H01 0060 
   Serial number: 00000000000210      


   Subsystem 4 - Part No: 8R0 060 961 E
   Component: CD-Database  4949 


No fault code found.


-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels:. 4F0-959-795.clb
   Part No SW: 4F0 959 795 P    HW: 4F0 959 795 P
   Component: TSG HL        H11 0362  
   Revision:             Serial number: 0000056373547 
   Coding: 010E06204061230004
   Shop #: WSC 31414 790 00001
   VCID: 46C08090F11C387A6E-8012


No fault code found.


-------------------------------------------------------------------------------
Address 6C: Back-up Cam.        Labels: 4L0-910-441.clb
   Part No SW: 4L0 910 441 B    HW: 4L0 907 441 B
   Component: J772__Rearview      0030  
   Revision: --H07---    Serial number: 525PA8-J2Y41SP
   Coding: 1021001
   Shop #: WSC 31414 790 00001
   VCID: 2502271CEC5AD36247-8070


No fault code found.


-------------------------------------------------------------------------------
Address 6D: Trunk Elect.        Labels: None
   Part No SW: 4L0 910 945     HW: 4L0 827 851 E
   Component: ValeoHeckdeckel H57 0500  
   Revision: --H57001    Serial number: E5030000B     
   Shop #: WSC 98765 666 38354
   VCID: 6C9412384F30222AD8-8038


   Subsystem 1 - Part No: 4L0 910 946 
   Component: ValeoHeckdeckel H57 0500


   Subsystem 2 - Serial number: E5030100B     


   Subsystem 3 - Serial number: RD19.01.13--H57001001A0314ÿ


   Subsystem 4 - Serial number: 1A0314ÿ


1 Fault Found:
02786 - Module 2 for Hatch / Trunk Lid (J756) 
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 69
                    Mileage: 54598 km
                    Time Indication: 0
                    Date: 2017.07.04
                    Time: 10:36:27




-------------------------------------------------------------------------------
Address 6F: Centr. Conv. II        Labels:. 4L0-910-290.lbl
   Part No SW: 4L0 910 290     HW: 4L0 907 290 
   Component: ILM HINTEN 2    H08 0080  
   Revision: AAH08080    Serial number: 130052155-----
   Coding: 0000001
   Shop #: WSC 31414 790 00001
   VCID: 6582671CACDA136287-8030


No fault code found.


-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels:. 4F0-959-795.clb
   Part No SW: 4F0 959 795 P    HW: 4F0 959 795 P
   Component: TSG HR        H11 0362  
   Revision:             Serial number: 0000049959517 
   Coding: 010E06204061230004
   Shop #: WSC 31414 790 00001
   VCID: 46C08090F11C387A6E-8012


3 Faults Found:
02115 - Locking Unit for Central Locking 
            008 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01101000
                    Fault Priority: 3
                    Fault Frequency: 53
                    Reset counter: 28
                    Mileage: 69884 km
                    Time Indication: 0
                    Date: 2018.07.22
                    Time: 17:37:47


01482 - Motors for Central Locking 
            007 - Short to Ground
             Freeze Frame:
                    Fault Status: 01100111
                    Fault Priority: 3
                    Fault Frequency: 61
                    Reset counter: 28
                    Mileage: 69884 km
                    Time Indication: 0
                    Date: 2018.07.22
                    Time: 17:37:47


01482 - Motors for Central Locking 
            006 - Short to Plus - Intermittent
             Freeze Frame:
                    Fault Status: 00100110
                    Fault Priority: 3
                    Fault Frequency: 12
                    Reset counter: 67
                    Mileage: 70059 km
                    Time Indication: 0
                    Date: 2018.07.30
                    Time: 12:29:30




End----------(Elapsed Time: 01:57, VBatt start/end: 14.4V/14.4V)-----------
 
   #2  

RyMar

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Reaction score
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Location
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VCDS Serial number
C?ID=133909
On level contr system go into MVB and check out the different distance levels at each wheel. Leave the vehicle for about 6 hrs and check again to see which wheel dropped?
 
   #3  

FioranoCars

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Location
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VCDS Serial number
C?ID=68608
quick question, based on some measurements on the wire wire harness under the RH side sill, specifically the 4 wire connector, which I understand from the error data is the temperature sensor, maybe pressure too?, if unplugged the harness has a 5v and earth and 2 which are ghost. If plugged in the 5v drops to low 2v range. Is the 4 wire harness for pressure and temperature? is the 5v supply used with an amp based measurement or are the 2 "ghost" wires supposed to be the signal wires? if so what? Temperature and pressure?
Not knowing if the wires are current based or voltage makes it hard to be sure what to measure or how to proceed. There is another thread which talks of a 3 wire sensor using 5v reference and a ground/signal wire but this is a 4 wire ...?

Any pointers appreciated
PS, based on visual inspection, there appears to be no leakage overnight, but did not have a chance to measure yesterday.
TIA for any help/pointers
 
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