Case Study: C1038 Relay for Ride-Height Compressor Mechanical Failure in Level Control (UDS)

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Jef

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ST?ID=118587

2013 S6
UDS Level Control "LUFE-DAEMPFER"

358147 - Relay for Ride-Height Compressor
C1038 07 [00001001] - Mechanical Failure


Code:
Monday,29,December,2025,13:37:42:08593
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64
VCDS Version: 25.3.2.0 (x64)  HEX-NET CB: 0.4671.4
Data version: 20250822 DS365.0
www.Ross-Tech.com

Dealer/Shop Name: Pierce Auto Parts LLC
Workshop Code: 444 54321 013310

VIN: WAUF2AFC4DN000000   License Plate:


Chassis Type: FC-AU57 (4G0)
Scan: 01 02 03 05 08 09 10 15 16 17 19 22 28 34 36 3B 3C 42 44 46
           47 52 53 55 56 5F 62 6C 72 8F 90 A9 BA

VIN: WAUF2AFC4DN000000   Mileage: 153043km-95096miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
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
19-CAN Gateway -- Status: OK 0000
22-AWD -- Status: OK 0000
28-HVAC, Rear -- Status: Malfunction 0010
34-Level Control -- Status: Malfunction 0010
36-Seat Mem. Drvr -- Status: OK 0000
3B-Sensor Elect. -- Status: OK 0000
3C-Lane Change -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- 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
72-Door, Rear Right -- Status: OK 0000
8F-Pretens. Frt Left -- Status: OK 0000
90-Pretens. Frt Right -- Status: OK 0000
A9-Struct. Borne Sound -- Status: OK 0000
BA-Motor Mounts -- Status: Malfunction 0010
-------------------------------------------------------------------------------
Address 01: Engine (------CEUC)       Labels:. 06E-907-551-CGW.clb
    Part No SW: 4G0 906 014 B    HW: 4H0 906 014
    Component: 4.0l V8TFSI / H61 0009
    Revision: NCH61---    CVN: C4F57260
    Coding: 0A2500326526000E1000
    Shop #: WSC 12670 002 1048576
    ASAM Dataset: EV_ECM40TFS0114G0906014B 001009
    ROD: EV_ECM40TFS0114G0906014B.rod
    VCID: 210AF74F30E87B93FC-8074
    VINID: 9D1956091593114780108247106A54DFA0

No fault code found.
Readiness: 1110 1101

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217)       Labels:| 0B5-927-156.clb
    Part No SW: 4G1 927 156 S    HW: 0B5 927 156 K
    Component: 0B5 40TFSINAR H08 0014
    Revision: --H08---    CVN: 000095D2
    Coding: 000001
    Shop #: WSC 29743 006 1048576
    ASAM Dataset: EV_TCMDL501021 001025
    ROD: EV_TCMDL501021.rod
    VCID: 3D322B3FAC503F73F8-8068

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 4G0-907-379-V1.clb
    Part No SW: 4G0 907 379 H    HW: 4G0 907 379 H
    Component: ESP PREMIUM   H09 0361
    Revision: --------    Serial number: --------------
    Coding: 65B64F01A66DF2804B00
    Shop #: WSC 02391 785 00200
    ASAM Dataset: EV_ESPPremiAU57X 004028
    ROD: EV_ESPPremiAU57X_004_AU57.rod
    VCID: 362034138966EC2B39-8062

3 Faults Found:
0604 - Tire Pressure Warning
           C102D 00 [00001000] - -
           Intermittent - Confirmed - Tested Since Memory Clear
              Freeze Frame:
                     Fault Priority: 2
                     Fault Frequency: 4
                     Reset counter: 0
                     Mileage: 153043 km
                     Date: 2025.12.29
                     Time: 12:42:20

                     VzRef: 00
                     Bit Info 1: 00
                     Bit Info 2: 40
                     Bit Info 3: 02
                     Bit Info 4: 1F
                     F-Path: 01
                     F-Type: 28
                     Uz: BA

0629 - Tire Pressure Warning
           C102D 00 [00001000] - -
           Intermittent - Confirmed - Tested Since Memory Clear
              Freeze Frame:
                     Fault Priority: 2
                     Fault Frequency: 4
                     Reset counter: 0
                     Mileage: 153043 km
                     Date: 2025.12.29
                     Time: 12:42:20

                     VzRef: 00
                     Bit Info 1: 00
                     Bit Info 2: 40
                     Bit Info 3: 02
                     Bit Info 4: 1F
                     F-Path: 01
                     F-Type: 2C
                     Uz: BA

0704 - Function Restriction due to Faults in Other Modules
           U1113 00 [00001001] - -
           [SCL_FA_Niveau_Druck_HR_Error]
           Confirmed - Tested Since Memory Clear
              Freeze Frame:
                     Fault Priority: 6
                     Fault Frequency: 1
                     Reset counter: 214
                     Mileage: 153043 km
                     Date: 2025.12.29
                     Time: 12:43:09

                     VzRef: 00
                     Bit Info 1: 00
                     Bit Info 2: 0F
                     Bit Info 3: 02
                     Bit Info 4: 1F
                     F-Path: 02
                     F-Type: 14
                     Uz: 9D


-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
    Part No SW: 4H0 907 064 CR    HW: 4H0 907 064 CR
    Component: BCM2 2.0      H32 0421
    Revision: 00002001
    Coding: 0D882006000000000000
    Shop #: WSC 02391 785 00200
    VCID: 7BB6E527FAC4F14386-802E

    Subsystem 2 - Part No SW: 4H0 905 852 C    HW: 4H0 905 852 C
    Component: J764 ELV MLB  H40 0046
    Serial number: 2312000171606005

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:| 4G0-820-043-4Z.clb
    Part No SW: 4G0 820 043 AE    HW: 4G0 820 043 AE
    Component: KLIMA 4 ZONEN H13 0076
    Serial number: 20081200040138
    Coding: 6801207849
    Shop #: WSC 02391 785 00200
    ASAM Dataset: EV_AirCondiComfoUDS 002036
    ROD: EV_AirCondiComfoUDS_002.rod
    VCID: 6288B843756E208BA5-8036

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 4H0-907-063-V1.clb
    Part No SW: 4H0 907 063 CG    HW: 4H0 907 063
    Component: BCM1 2.0      H12 0130
    Revision: 11012002    Serial number: 00000001579695
    Coding: 0907A091073C9FE0A90108C7A0003800CF9CD208A20802218001085C7B00
    Shop #: WSC 12345 123 61029
    VCID: 6FAEC177BEBC9DE33A-803A

    Subsystem 1 - Part No SW: 4G1 955 119     HW: 4G8 955 119   Labels:
1KX-955-119.CLB
    Component: WWS57X 120720  H36 0080
    Serial number:         120801144955
    Coding: 0045F7

    Subsystem 2 - Part No SW: 8U0 955 559 B    HW: 8U0 955 559 B
Labels: 8U0-955-559.CLB
    Component: G397_RLFS  H06 0002
    Serial number: 20492479
    Coding: 02006D

    Subsystem 3 - Part No SW: 4G0 941 531 E    HW: 4G0 941 531 E
    Component: E1 - LDS  H07 0044
    Serial number: 08 08 2012  00000625

    Subsystem 4 - Part No SW: 4G0 907 410 A    HW: 4H0 907 410 A
    Component: USHL4.2  H30 0030
    Serial number: 0000002274555R2JLC02

    Subsystem 5 - Part No SW: 4H0 907 472 B    HW: 4H0 907 472 B
    Component: A31 LED Mod1L  H03 0006
    Serial number: 00000007081200010003
    Coding: 110000

    Subsystem 6 - Part No SW: 4H0 907 472 B    HW: 4H0 907 472 B
    Component: A27 LED Mod1R  H03 0006
    Serial number: 00000007081200010985
    Coding: 110000

    Subsystem 7 - Part No SW: 4H0 907 705 K    HW: 4H0 907 705 C
    Component: EVLS-SG  H08 0300
    Serial number: WA103816000001674906
    Coding: 020300

    Subsystem 8 - Part No SW: 4H0 907 658     HW: 4H0 907 658
    Component: AQ_Hum_Sensor  H02 0002
    Serial number: 4FD80E36000000000001

No fault code found.

-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:| 4H0-919-475-7X2.clb
    Part No SW: 4H0 919 475 AG    HW: 4H0 919 475 AG
    Component: PARKHILFE ACC H01 0072
    Revision: 11001001    Serial number: 61061222204080
    Coding: A8C10A
    Shop #: WSC 02391 785 00200
    ASAM Dataset: EV_EPHVA18AU57X0000 003008
    ROD: EV_EPHVA18AU57X0000_003_AU57.rod
    VCID: 77BEF917CEECD523E2-8022

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:* 4H0-959-655.clb
    Part No SW: 4G0 959 655 A    HW: 4G0 959 655 A
    Component: Airbag10.43   H32 0032
    Revision: --------    Serial number: 003D8002B5DC Dataset Number:
4G0909602E  0007
    Coding: 303234373131303030314A55304C34473053
    Shop #: WSC 02391 785 00200
    ASAM Dataset: EV_AirbaAU10BPAAU64X 001014
    ROD: EV_AirbaAU10BPAAU64X_VW51.rod
    VCID: 33260D079A14F9031E-8066

    Seat occupied recognition:
    Subsystem 1 - Part No SW: 5C6 959 339 A    HW: 5C6 959 339 A
    Component: BF-Gewichtss.  H15 0045
    Serial number: 6940000Y120000HNS601

    Crash sensor for side airbag: driver side:
    Serial number: 3575HRB405F1G7FCE989

    Crash sensor for side airbag: passenger side:
    Serial number: 3585HRB404P1G1DOFGI+

    Rear Side Airbag Crash Sensor (on driver's side):
    Serial number: 3515JRB40631D2AS9GC3

    Passenger side rear thorax airbag crash sensor:
    Serial number: 3525JRB405J1DKAS71QY

    Crash sensor for front airbag: driver side:
    Serial number: 3554VRB40591EVLG7H62

    Crash sensor for front airbag: passenger side:
    Serial number: 3564VRB40591EVLGG9DB

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:. 4H0-953-568.clb
    Part No SW: 4H0 953 568 G    HW: 4H0 953 568 G
    Component: Lenks.Modul   H03 0005
    Revision: --------    Serial number: 90372LHH000UY
    Coding: 000034
    Shop #: WSC 02391 785 00200
    VCID: 373E3917866C152322-8062

    Subsystem 1 - Part No SW: 4G0 951 528 A    HW: 4G0 951 528 A
    Component: E221 - MFL  H08 0010
    Serial number: 14 06 2012  B0193801

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 4H0-920-xxx-17.clb-SRI1
    Part No SW: 4G0 920 981 K    HW: 4G0 920 981 K
    Component: TBenUsa   Nv  H76 0515
    Revision: 28460207    Serial number: 658150812596048
    Coding: 03EF09059B41D705020200
    Shop #: WSC 12345 123 61029
    ASAM Dataset: EV_RBD4K 004046
    ROD: EV_RBD4K_AU57.rod
    VCID: 33260D079A14F9031E-8066

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:| 4H0-907-468.clb
    Part No SW: 4G0 907 468 AC    HW: 4G0 907 468 AA
    Component: J533--Gateway H11 0035
    Revision: --------    Serial number: 00000000645947 Dataset Number:
4G0909515C  0062
    Coding: 00E1034800
    Shop #: WSC 02391 785 00200
    GVL: FDA3E8CCFE62600D1100
    ASAM Dataset: EV_GatewPkoUDS 001016
    ROD: EV_GatewPkoUDS_001_AU57.rod
    VCID: 71AAC70FA0888B132C-8024

    Battery Monitoring Control Module:
    Subsystem 1 - Part No SW: 8X0 915 181     HW: 8X0 915 181
    Component: J367-BDM  H07 0141
    Serial number: 00000000003790051772

No fault code found.

-------------------------------------------------------------------------------
Address 22: AWD (J492)       Labels: 4H0-907-163.clb
    Part No SW: 4H0 907 163 A    HW: 4H0 907 163 A
    Component: 4 Wheel Drive H15 0013
    Serial number: 000308120001006 Dataset Number: 4G0909104A  0017
    ASAM Dataset: EV_AllWheelDiffeQSPFR 003023
    ROD: EV_AllWheelDiffeQSPFR_AU57.rod
    VCID: 271EE9575ECC85A3B2-8072

No fault code found.

-------------------------------------------------------------------------------
Address 28: HVAC, Rear (E265)       Labels:* 4G0-919-158.clb
    Part No SW: 4G0 919 158 J    HW: 4G0 919 158 J
    Component: KLIMA FOND    H07 0076
    Serial number: 17081200040955
    Coding: 20
    Shop #: WSC 02391 785 00200
    ASAM Dataset: EV_ClimaContrUnitRearUDS 002018
    ROD: EV_ClimaContrUnitRearUDS_002.rod
    VCID: 362034138966EC2B39-8062

2 Faults Found:
0077 - Supply voltage
           U1011 00 [00001001] - Voltage too Low
           [Versorgungsspannung: unterer Grenzwert unterschritten]
           Confirmed - Tested Since Memory Clear
              Freeze Frame:
                     Fault Priority: 1
                     Fault Frequency: 1
                     Reset counter: 214
                     Mileage: 153043 km
                     Date: 2025.12.29
                     Time: 12:43:09

                     Voltage terminal 30: 0.00 V
                     Outside temperature: 20.0 °C
                     Engine speed: 1467 /min

0102 - 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: 254
                     Mileage: 153043 km
                     Date: 2025.12.29
                     Time: 12:42:19

                     Voltage terminal 30: 0.03 V
                     Outside temperature: 19.5 °C
                     Engine speed: 657 /min
                     Vehicle speed: 0.00 km/h


-------------------------------------------------------------------------------
Address 34: Level Control (J197)       Labels:. 4G0-907-553.clb
    Part No SW: 4G0 907 553 F    HW: 4G0 907 553 F
    Component: LUFE-DAEMPFER H18 0782
    Dataset Number: 4G0909553F  0034
    Coding: 008000
    Shop #: WSC 02391 785 00200
    ASAM Dataset: EV_AirSuspe 003024
    ROD: EV_AirSuspe_AU57.rod
    VCID: 2E101C737136D4EB71-807A

1 Fault Found:
358147 - Relay for Ride-Height Compressor
           C1038 07 [00001001] - Mechanical Failure
           Confirmed - Tested Since Memory Clear
              Freeze Frame:
                     Fault Priority: 2
                     Fault Frequency: 1
                     Reset counter: 215
                     Mileage: 153043 km
                     Date: 2025.12.29
                     Time: 13:32:29


-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr (J136)       Labels: None
    Part No SW: 4G8 959 760     HW: 4G8 959 760
    Component: MEM-FS        H03 0154
    Revision: AA000000    Serial number: 00000035270573
    Coding: 00581B0000002001000001010101102030303232203232
    Shop #: WSC 02391 785 00200
    VCID: 77BEF917C6ECD523E2-8022

No fault code found.

-------------------------------------------------------------------------------
Address 3B: Sensor Elect. (J849)       Labels: 4G0-907-637.clb
    Part No SW: 4G0 907 637 L    HW: 4G0 907 637 G
    Component: SARA 6D red   H02 0053
    Revision: --------    Serial number: EJ1BPA7E004DH6 Dataset Number:
4G0909573C  0006
    Shop #: WSC 00000 000 00000
    ASAM Dataset: EV_SARA2 005011
    ROD: EV_SARA2.rod
    VCID: 373E39178E6C152322-8062

No fault code found.

-------------------------------------------------------------------------------
Address 3C: Lane Change        Labels: Redir Fail!
    Part No SW: 4G0 907 566 D    HW: 4G0 907 566
    Component: J769  SWA MasterH01 0040
    Revision: 00H01000    Serial number: 6PZ 010 287-03
    Coding: 0000001
    Shop #: WSC 02391 785 00200
    VCID: 302C020BA302C21B63-8064

    Subsystem 1 - Part No: 4G0 907 568 D
    Component: J770  SWA Slave H01 0040

    Subsystem 2 - Serial number: 6PZ 010 287-23

    Subsystem 3 - Serial number: 5F16.08.1200H010003CF20395ÿ

    Subsystem 4 - Serial number: F20395ÿ

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:. 4H0-959-793.clb
    Part No SW: 4G8 959 793 J    HW: 4G8 959 793 G
    Component: TSG FA        H03 0506
    Revision: --------    Serial number: --------------
    Coding: 011F17005E00628002000012
    Shop #: WSC 02391 785 00200
    VCID: 47DE49D7F68C65A352-8012

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 4G0-909-144.clb
    Part No SW: 4G0 909 144 L    HW: 4G0 909 144 G
    Component: RCEPS         H36 0010
    Revision: 00001000    Serial number: 0001767062 Dataset Number:
4G0909852H  0027
    Coding: 101000010000
    Shop #: WSC 02391 785 00200
    ASAM Dataset: EV_RCEPS 009008
    ROD: EV_RCEPS_009.rod
    VCID: 32280803650EF00B15-8066

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels:. 4H0-907-064-46.clb
    Part No SW: 4H0 907 064 CR    HW: 4H0 907 064 CR
    Component: BCM2 2.0      H32 0421
    Revision: 00002001    Serial number: 0182376952
    Coding: 0106023A00FA408580B00880020503000000000000000000000000000000
    Shop #: WSC 29743 006 1048576
    VCID: 7BB6E527FAC4F14386-802E

    Subsystem 1 - Part No SW: 4G0 959 719     HW: 4G0 959 719
    Component: GTO BF  H01 0080
    Serial number: 00000000000000101361

    Subsystem 2 - Part No: 1K0 951 605 C
    Component: LIN BACKUP HO  H05 1501

    Subsystem 3 - Part No SW: 4G8 959 591     HW: 7P0 959 591 C
    Component: J245 PS40.039  H01 0008
    Serial number:     WOO1750604/
    Coding: 101F00

    Subsystem 4 - Part No SW: 4G0 947 135 G    HW: 4G0 947 135
    Component: Dachelektroni  H10 0100
    Serial number: 0000000AP00001924013
    Coding: 010000

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (J525)       Labels: None
    Part No SW: 4G1 035 223 A    HW: 4G1 035 223 A
    Component: BOSE-G3C7-ANC H02 0540
    Revision: CJ002700    Serial number: 00000000003204
    Coding: 030000
    Shop #: WSC 02391 785 00200
    VCID: 1C74C6BB1F8A567B2F-8048

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:. 4H0-959-792.clb
    Part No SW: 4G8 959 792 J    HW: 4G8 959 792 G
    Component: TSG BF        H03 0506
    Revision: --------    Serial number: --------------
    Coding: 011F17005E00628002000002
    Shop #: WSC 02391 785 00200
    VCID: 46C044D3F1867CABA9-8012

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (----)       Labels: 4H0-907-801.clb
    Part No SW: 4H0 907 801 F    HW: 4H0 907 801 A
    Component: EPB-4         H03 0013
    Revision: --------    Serial number: 00000000448736 Dataset Number:
4G0909522B  0002
    ASAM Dataset: EV_ParkiBrake 001027
    ROD: EV_ParkiBrake_VW51.rod
    VCID: 2B1615674224A1C356-807E

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range (J431)       Labels:| 8X0-907-357.clb
    Part No SW: 4H0 907 357 B    HW: 4H0 907 357 B
    Component: ....LWR12.... H02 0010
    Serial number: 120820-0002-099
    Coding: 12216F601002A400
    Shop #: WSC 02391 785 00200
    ASAM Dataset: EV_HeadlRegulBasic 005001
    ROD: EV_HeadlRegulBasic_AU35.rod
    VCID: 2D121B7F7C30AFF348-8078

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (R)       Labels:. 4F0-035-0xx-56.clb
    Part No SW: 4G0 035 082 D    HW: 4G0 035 082
    Component: Radio U SIRIU H60 0112
    Revision: AB001007    Serial number: 156H.0C7623830
    Coding: 020007010000000001
    Shop #: WSC 02391 785 00200
    VCID: 210AF74F38E87B93FC-8074

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
    Part No SW: 4G0 035 746 B    HW: 4G0 035 746 B
    Component: H-BNT-NA      H49 0549
    Revision: --------    Serial number: 194H+0C7510477
    Coding: 060200000203F1EF55128B3E00000003100001000000000000
    Shop #: WSC 02391 785 00200
    VCID: 2600E45351C69CAB89-8072

    Subsystem 1 - Part No: 8R0 060 884 AM
    Component: NAR 2012  0605

    Subsystem 2 - Part No SW: 4G0 919 605 B    HW: 4G0 919 605 B
    Component: DU8 C7 SV  H42 0021
    Serial number: AUZ8ZDC9402BF1D

    Subsystem 3 - Part No SW: 4G1 919 612 Q    HW: 4G1 919 612 Q
    Component: E380 BDT C7  H11 0204
    Serial number: 90349MKK000NJ

    Subsystem 4 - Part No: 8R0 060 961 D
    Component: CD-Database  4353

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels:. 4H0-959-795.clb
    Part No SW: 4G8 959 795 J    HW: 4G8 959 795 G
    Component: TSG HL        H03 0506
    Revision: --------    Serial number: --------------
    Coding: 010F17004000628002000002
    Shop #: WSC 02391 785 00200
    VCID: 49DA4FEFE09893D344-801C

No fault code found.

-------------------------------------------------------------------------------
Address 6C: Back-up Cam.        Labels: 4H0-907-441.clb
    Part No SW: 4G0 907 441 B    HW: 4H0 907 441
    Component: SG Rueckfahrkamera  0061
    Revision: --H06---    Serial number: 525 PA8J27G5FD
    Coding: 1080004
    Shop #: WSC 02391 785 00200
    VCID: 2600E45391C69CAB89-8072

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels:. 4H0-959-795.clb
    Part No SW: 4G8 959 795 J    HW: 4G8 959 795 G
    Component: TSG HR        H03 0506
    Revision: --------    Serial number: --------------
    Coding: 010F17004000628002000002
    Shop #: WSC 02391 785 00200
    VCID: 49DA4FEFE09893D344-801C

No fault code found.

-------------------------------------------------------------------------------
Address 8F: Pretens. Frt Left (J854)       Labels: 4H0-980-94x-RGS.clb
    Part No SW: 4H0 980 945 B    HW: 4H0 980 945 C
    Component: RGS-VL        H13 0080
    Dataset Number: 4G0909614B  0005
    Coding: 0006E008031F0300070308014244CA010000
    Shop #: WSC 02391 785 00200
    ASAM Dataset: EV_RGS_L 002004
    ROD: EV_RGS_L.rod
    VCID: 312A070F6008CB136C-8064

No fault code found.

-------------------------------------------------------------------------------
Address 90: Pretens. Frt Right (J855)       Labels: 4H0-980-94x-RGS.clb
    Part No SW: 4H0 980 946 B    HW: 4H0 980 946 C
    Component: RGS-VR        H13 0080
    Dataset Number: 4G0909615B  0005
    Coding: 0006E008031F0300070308014244CA010000
    Shop #: WSC 02391 785 00200
    ASAM Dataset: EV_RGS_R 002004
    ROD: EV_RGS_R.rod
    VCID: 32280803650EF00B15-8066

No fault code found.

-------------------------------------------------------------------------------
Address A9: Struct. Borne Sound (J869)       Labels: 4H0-907-159.clb
    Part No SW: 4G0 907 159 B    HW: 4H0 907 159 A
    Component: SAS-GEN 2     H06 0010
    Serial number: 120717200802
    ASAM Dataset: EV_SoundActuaGen2AU64X 003010
    ROD: EV_SoundActuaGen2AU64X_003_VW37.rod
    VCID: 2C14167B472AA6FB5F-8078

No fault code found.

-------------------------------------------------------------------------------
Address BA: Motor Mounts (J931)       Labels: 4H0-907-145.clb
    Part No SW: 4H0 907 145 B    HW: 4H0 907 145
    Component: AEM - LEAR    H05 0008
    Revision: 00001001    Serial number: 97804000631604 Dataset Number:
4G0909578B  0013
    ASAM Dataset: EV_AEMLearAU64X 002016
    ROD: EV_AEMLearAU64X_AU57.rod
    VCID: 281CEA6B53D28ADBBB-807C

1 Fault Found:
1294 - Actuator 1 for Drivetrain Mounts
           C1131 07 [00001001] - Mechanical Failure
           Confirmed - Tested Since Memory Clear
              Freeze Frame:
                     Fault Priority: 2
                     Fault Frequency: 1
                     Reset counter: 214
                     Mileage: 153043 km
                     Date: 2025.12.29
                     Time: 12:42:22


End----------(Elapsed Time: 02:44, VBatt start/end: 12.4V/12.3V)-----------
------------------------------7 Faults Found-------------------------------


Not much going on for the J403 compressor relay:
gkX1ZXe.png


J403 relay was replaced with new, same issue. Tech and I go over testing wiring harness and everything is 101% to factory design and electric motor for pump does operate via control of the J403 relay. Powers/grounds for J197 are load tested and good. Suspect bad J197.... used unit purchased and get the same issue.

I suspect the J197 has some sort of logic that goes like this.. I want to run the pump, so I power the relay... relay looks good electrically... now I expect to see a pressure change.... I don't see a pressure change and the relay looks good electrically... therefore the relay has a "Mechanical Failure". And it seems all of this happens quickly, so the net effect is you may think the pump never kicked in when in fact it does, but very briefly.

So maybe a bad pump or valve block at play here? By chance the shop has a 2012 A8 parts car, I was able to verify it has the same part number valve block. The tech swapped over the valve block and that fixed the issue in this case. I could see this just as well been due to a failed pump as well.

Hopefully this will help others from getting stuck on a phantom relay issue (after verifying relay and wiring is good).
 
Last edited:
   #2  

stefdds

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The tech swapped over the valve block and that fixed the issue in this case. I could see this just as well been due to a failed pump as well.
It would be interesting to find out or dissect one of those valve blocks and see what actually fails ; o-rings? , xs tolerances?
 
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Ziddywerks

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Your issue is the compressor and this has been a well documented issue in these vehicles going back to 2004. Usually that fault is set because the compressor is not making enough pressure in a set amount of time. The common cause is a worn piston ring inside the single stage compressor. I recommend updated piston ring and bore inspection of compressor. Teflon piston ring is the best approach.
 
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