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Thread: G28 fault !

  1. #1
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    G28 fault !


    G28 speed sensor fault.

    Is this easy to change?

    Anyone have an idea on location on a 2.0tdi
    A4 (b6) 2.5 TDi QS Saloon.

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  3. #2
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    I'm unsure of the 2.0tdi, but on the 1.9 it was a bugg er to get at. It's away in, next to flywheel. Even getting it out was a problem due to the way it was angled. What VCDS code are you getting? Symptoms?

  4. #3
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    Heres a copy of the scan....

    Chassis Type: 1K0
    Scan: 01 03 08 09 15 16 17 19 25 37 42 44 46 52 56 7D
    VIN: WAUZZZ8P84A063394 Mileage: 109850km/68257miles
    00-Steering Angle Sensor -- Status: OK 0000
    01-Engine -- Status: OK 0000
    03-ABS Brakes -- Status: OK 0000
    08-Auto HVAC -- Status: Malfunction 0010
    09-Cent. Elect. -- Status: Malfunction 0010
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    19-CAN Gateway -- Status: OK 0000
    25-Immobilizer -- Status: OK 0000
    37-Navigation -- Status: Malfunction 0010
    42-Door Elect, Driver -- Status: OK 0000
    44-Steering Assist -- Status: Malfunction 0010
    46-Central Conv. -- Status: OK 0000
    52-Door Elect, Pass. -- Status: OK 0000
    56-Radio -- Status: Malfunction 0010
    7D-Aux. Heat -- Status: OK 0000

    -------------------------------------------------------------------------------
    Address 01: Engine Labels: 03G-906-016-BKD.lbl
    Part No SW: 03G 906 016 G HW: 028 101 136 4
    Component: R4 2,0L EDC 0000SG 5705
    Revision: 12345678 Serial number: AUX7Z0C7FNK09X
    Coding: 0000072
    Shop #: WSC 06435 000 00000
    VCID: 27562B63EF7D
    No fault code found.
    Readiness: 0 0 0 0 0
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes Labels: 1K0-907-379-MK60-F.lbl
    Part No: 1K0 907 379 D
    Component: ESP FRONT MK60 0102
    Coding: 0055942
    Shop #: WSC 06435 000 00000
    VCID: 336ECF332BA5
    No fault code found.
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC Labels: 8P0-820-043.lbl
    Part No SW: 8P0 820 043 B HW: 8P0 820 043 B
    Component: KlimavollautomatH11 0130
    Shop #: WSC 00000 000 00000
    VCID: 2B5ED753F395
    1 Fault Found:
    01592 - Air Quality Sensor (G238)
    014 - Defective - Intermittent
    Freeze Frame:
    Fault Status: 00101110
    Fault Priority: 3
    Fault Frequency: 1
    Reset counter: 37
    Mileage: 109679 km
    Time Indication: 0
    Date: 2011.05.19
    Time: 16:14:06
    Freeze Frame:
    Temperature: 30.0°C

    -------------------------------------------------------------------------------
    Address 09: Cent. Elect. Labels: 8P0-907-279-23-H.lbl
    Part No SW: 8P0 907 279 A HW: 8P0 907 279 A*
    Component: Bordnetz-SG 1.0 H29 0501
    Revision: 00029000 Serial number: 00000000137747
    Coding: 05884F00A2141000000000000000000000
    Shop #: WSC 00000 000 00000
    VCID: 3B7EE71303F5
    Part No: 8P2 955 119 A
    Component: Wischer WWS Audi350 0170
    Coding: 16711696
    Shop #: WSC 00000
    1 Fault Found:
    02071 - Local Databus
    004 - No Signal/Communication - Intermittent
    -------------------------------------------------------------------------------
    Address 15: Airbags Labels: 8P0-959-655-84.lbl
    Part No SW: 8P0 959 655 F HW: 8P0 959 655 F
    Component: Airbag 8.4ED H01 0130
    Coding: 0011602
    Shop #: WSC 06435 000 00000
    VCID: 458A81EB7531
    No fault code found.
    -------------------------------------------------------------------------------
    Address 16: Steering wheel Labels: 1K0-953-549-MY8.lbl
    Part No SW: 1K0 953 549 A HW: 1K0 953 549 A
    Component: Lenksäulenmodul 009 0030
    Coding: 0000012
    Shop #: WSC 06435 000 00000
    VCID: 3064C03FDAB3
    No fault code found.
    -------------------------------------------------------------------------------
    Address 17: Instruments Labels: 8P0-920-xxx-17-MY7.lbl
    Part No SW: 8P0 920 980 H HW: 8P0 920 980 H
    Component: KOMBIINSTR. VDO H25 0080
    Revision: D06 Serial number: 2247CD06000503
    Coding: 0004403
    Shop #: WSC 00763 210 52655
    VCID: 3C7CE40F06FB
    No fault code found.
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway Labels: 1K0-907-530.lbl
    Part No SW: 1K0 907 530 B HW: 1K0 907 951
    Component: Gateway H08 0090
    Revision: 08 Serial number: 2400103724B78C
    Coding: 3D0F0B48070101
    Shop #: WSC 00185 210 89734
    VCID: 26482667E877
    No fault code found.
    -------------------------------------------------------------------------------
    Address 25: Immobilizer Labels: 1K0-920-xxx-25.clb
    Part No SW: 8P0 920 980 H HW: 8P0 920 980 H
    Component: KOMBIINSTR. VDO H25 0080
    Revision: D06 Serial number: AUX7Z0C7FNK09X
    Shop #: WSC 00000 000 00000
    VCID: 3C7CE40F06FB
    No fault code found.
    -------------------------------------------------------------------------------
    Address 37: Navigation Labels: 8E0-035-192-RNSE.lbl
    Part No SW: 8P0 035 192 A HW: 8P0 035 192 A
    Component: RNS-E HIGH EU H70 0650
    Revision: 00S Serial number: AUZBZ0E0900003
    Coding: 0209111
    Shop #: WSC 00185 210 89734
    VCID: 2D5AD94BCD81
    2 Faults Found:
    00858 - Connection; Radio ZF Output to Antenna Amplifier
    011 - Open Circuit
    Freeze Frame:
    Fault Status: 01101011
    Fault Priority: 5
    Fault Frequency: 93
    Reset counter: 1
    Mileage: 104588 km
    Time Indication: 0
    Date: 2010.08.30
    Time: 10:40:29
    Freeze Frame:
    Mileage: 109710 km
    Count: 2305
    Clock: 07:53
    16352 - Control Module - Electrical Error
    014 - Defective - Intermittent
    Freeze Frame:
    Fault Status: 00101110
    Fault Priority: 5
    Fault Frequency: 1
    Reset counter: 151
    Mileage: 8875 km
    Time Indication: 0
    Date: 2006.04.08
    Time: 13:08:01

    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver Labels: 8P0-959-801-MIN1.lbl
    Part No: 8P0 959 801 A
    Component: Tuersteuerger. H10 0010
    Coding: 0000056
    Shop #: WSC 00185 210 80347
    VCID: 3972FD1B09C9
    No fault code found.
    -------------------------------------------------------------------------------
    Address 44: Steering Assist Labels: 1Kx-909-14x-44.clb
    Part No: 1K1 909 143 L
    Component: EPS_ZFLS Kl.7 0402
    Shop #: WSC 00000 000 00000
    VCID: 336ECF332BA5
    1 Fault Found:
    00513 - Engine Speed Sensor (G28)
    012 - Electrical Fault in Circuit - Intermittent - MIL ON
    Freeze Frame:
    Mileage: 9840 km
    RPM: 32 /min

    -------------------------------------------------------------------------------
    Address 46: Central Conv. Labels: 8P0-959-433.lbl
    Part No: 8P0 959 433
    Component: KSG H02 0040
    Coding: 198800186D28050F485AC63000
    Shop #: WSC 00185 210 11803
    VCID: F9F2BD1BC949
    Part No: 1K0 951 605 A
    Component: LIN BACKUP HORN H01 1201
    Part No: 1K0 907 719
    Component: Neigungssensor 002 0002
    Part No: 8P0 951 177
    Component: Innenraumueberw.H02 0010
    No fault code found.
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass. Labels: 8P0-959-802-MIN1.lbl
    Part No: 8P0 959 802 A
    Component: Tuersteuerger. H10 0010
    Coding: 0000120
    Shop #: WSC 06435 000 00000
    VCID: 3A70E2170CCF
    No fault code found.
    -------------------------------------------------------------------------------
    Address 56: Radio Labels: 8E0-035-192-RNSE.lbl
    Part No SW: 8P0 035 192 A HW: 8P0 035 192 A
    Component: RNS-E HIGH EU H70 0650
    Revision: 00S Serial number: AUZBZ0E0900003
    Coding: 0209111
    Shop #: WSC 00185 210 89734
    VCID: 2D5AD94BCD81
    2 Faults Found:
    00858 - Connection; Radio ZF Output to Antenna Amplifier
    011 - Open Circuit
    Freeze Frame:
    Fault Status: 01101011
    Fault Priority: 5
    Fault Frequency: 93
    Reset counter: 1
    Mileage: 104588 km
    Time Indication: 0
    Date: 2010.08.30
    Time: 10:40:29
    Freeze Frame:
    Mileage: 109710 km
    Count: 2305
    Clock: 07:53
    16352 - Control Module - Electrical Error
    014 - Defective - Intermittent
    Freeze Frame:
    Fault Status: 00101110
    Fault Priority: 5
    Fault Frequency: 1
    Reset counter: 151
    Mileage: 8875 km
    Time Indication: 0
    Date: 2006.04.08
    Time: 13:08:01

    -------------------------------------------------------------------------------
    Address 7D: Aux. Heat Labels: 1K0-963-235.lbl
    Part No SW: 1K0 963 235 C HW: 1K0 963 235 C
    Component: PTC-Element 0404
    Revision: 00600000 Serial number:
    Shop #: WSC 00000 000 00000
    VCID: 2B5ED753F395
    No fault code found.
    End ---------------------------
    A4 (b6) 2.5 TDi QS Saloon.

  5. #4
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    The module that the G28 error is occurring in - have you looked at its mileage? Its a lot less than your current.

    Any other issues - symptoms? Flashing glowplug light? Checked all electrical connections? Attempted to clear the DTCs?

  6. #5
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    Power steering warning light on.causing loss of power steering
    Fault can be cleared with VCDS and returns within 10 miles.
    I'm just about to put the car up on stands and have a look at the sensor connections.
    A4 (b6) 2.5 TDi QS Saloon.

  7. #6
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    Would be a good idea. Check all grounds etc too.

    PM me if you want a few pics emailed detailing location - ill try to get them off elsawin. You will, however (IIRC) remove the oil filter housing. Even then it is a disaster to get it out!

  8. #7
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    Cheers, I'll PM you an email addy,
    Hope its not a job for a garage...
    A4 (b6) 2.5 TDi QS Saloon.

  9. #8
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    look on the ross tech wiki and you should be able to get a answer
    2008 imola s3 Gone
    2012 Daytona Grey RS3

  10. #9
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    Looked on the wiki.....
    A4 (b6) 2.5 TDi QS Saloon.

  11. #10
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    have you followed the turn the steering to the left and hold then right and hold and centre
    2008 imola s3 Gone
    2012 Daytona Grey RS3

  12. #11
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    turning the wheel will not sort the problem I have
    A4 (b6) 2.5 TDi QS Saloon.

  13. #12
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    After a chat with a Audi tech it seems changing this sensor is not very easy.
    It located behind the oil filter/cooler and the insert that the bolt screws into is known to fail.
    The insert is part of the rear crank oil seal carrier,gearbox clutch and flywheel out job.
    Car booked in tomorrow....
    A4 (b6) 2.5 TDi QS Saloon.

  14. #13
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    good luck kite hope it gets sorted
    2008 imola s3 Gone
    2012 Daytona Grey RS3

 

 

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