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Thread: Audi S3 8V new rear brake discs, callipers and line locks fitted - now EPB fault

  1. #1
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    Audi S3 8V new rear brake discs, callipers and line locks fitted - now EPB fault

    i've just fitted big brakes to the rear of my Audi S3 8V this included removing the stock line lock and replacing with one sized for the new caliper hangers. I didn't touch the electric supply cable to the EPB motor. All went fine until i started her up and tried the EPB and the fault light came on the dash. The EPB locks on and will not come off - either when lifting the clutch or manually pressing the button. I can release it if i run the parking brake test module. The following VCDS report came up. Can anyone assist please? many thanks.


    Address 03: ABS Brakes Labels: 5Q0-907-379-IPB-V1.CLB
    Control Module Part Number: 3Q0 907 379 AA HW: 3Q0 907 379 F
    Component and/or Version: ESC H42 0623
    Software Coding: 31F193A254222A6E017F070641C9698CC92A5480E08296F614 4150F88008
    Work Shop Code: WSC 06385 790 00016
    ASAM Dataset: EV_Brake1UDSContiMK100IPB 034036 (AU37)
    ROD: EV_Brake1UDSContiMK100IPB_034_VW48.rod
    VCID: 79FE3FA1F8210889AE-802C
    4 Faults Found:

    32800 - Supply Voltage for Left Parking Brake Motor
    C100D F0 [137] - Short Circuit
    MIL ON - Confirmed - Tested Since Memory Clear
    Freeze Frame:
    Fault Status: 00000001
    Fault Priority: 2
    Fault Frequency: 3
    Reset counter: 148
    Mileage: 17017 km
    Date: 2017.04.21
    Time: 20:03:19

    32801 - Supply Voltage for Right Parking Brake Motor
    C100E F0 [137] - Short Circuit
    MIL ON - Confirmed - Tested Since Memory Clear
    Freeze Frame:
    Fault Status: 00000001
    Fault Priority: 2
    Fault Frequency: 2
    Reset counter: 148
    Mileage: 17017 km
    Date: 2017.04.21
    Time: 20:03:18

    32830 - Parking Brake Motors
    C10E1 29 [008] - Signal Implausible
    Intermittent - Confirmed - Tested Since Memory Clear
    Freeze Frame:
    Fault Status: 00000001
    Fault Priority: 2
    Fault Frequency: 7
    Reset counter: 188
    Mileage: 17017 km

    32951 - Control Module for Electronic Parking Brake
    C10E2 54 [137] - Missing Calibration / Basic Setting
    MIL ON - Confirmed - Tested Since Memory Clear
    Freeze Frame:
    Fault Status: 00000001
    Fault Priority: 2
    Fault Frequency: 1
    Reset counter: 147
    Mileage: 17017 km
    Date: 2017.04.23
    Time: 13:19:20

  2. #2
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    ABS Security Access Code

    Does anyone know what this is for my Audi S3 8V?

  3. #3
    Benevolent Dictator Uwe's Avatar
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    What are you trying to accomplish?

    -Uwe-
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    Quote Originally Posted by Uwe View Post
    What are you trying to accomplish?

    -Uwe-
    To see what functionality there is in there and if any can resolve my current issue with the EPB brake (separate thread)

  5. #5
    Ross-Tech Employee Sebastian's Avatar
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    You need to be a little more specific, depending on the variant in your car - there are more than 50 different security access codes, each with a different function/meaning.
    Sebastian @ Ross-Tech.com // VCDS Rookie since 2003

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    als die Meinung eines Andersdenkenden.«

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    Yep, people tend to be under the impression that there's ONE security access code that opens up everything in a specific module, but unfortunately, windmills do not work that way.

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    Quote Originally Posted by Sebastian View Post
    You need to be a little more specific, depending on the variant in your car - there are more than 50 different security access codes, each with a different function/meaning.
    OK. Tell me what info you need from me and i can tell you.

  10. #8
    Ross-Tech Employee Sebastian's Avatar
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    I took the liberty of merging your two topics, as this is really what this is about. Looking at your DTCs, I don't see anything where a security access code may even remotely help you.

    According to your initial statement, you replaced the rear brakes. What part numbers and pr codes were the original ones and what are the current/new ones? Where did the new parts come from (new or used, audi or aftermarket)? Why did you replace the rear brakes in the first place? A complete Auto-Scan should always be included in any topic in this forum, in cases like this - the vehicle VIN is crucial as well.
    Sebastian @ Ross-Tech.com // VCDS Rookie since 2003

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    NostraJackAss Jack@European_Parts's Avatar
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    I took the liberty of merging your two topics, as this is really what this is about. Looking at your DTCs, I don't see anything where a security access code may even remotely help you.

    According to your initial statement, you replaced the rear brakes. What part numbers and pr codes were the original ones and what are the current/new ones? Where did the new parts come from (new or used, audi or aftermarket)? Why did you replace the rear brakes in the first place? A complete Auto-Scan should always be included in any topic in this forum, in cases like this - the vehicle VIN is crucial as well.
    Great post Sebastian........./\

    OP:
    How about measuring the step count and comparing the parking brake motors?

    Did you just bolt on your equipment and plug it in or did you retract the old calipers to baseline and then install the new calipers?

    Is the brake module the correct part for the upgrade, rotor thickness, and pad thickness?
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    Quote Originally Posted by Jack@European_Parts View Post
    Great post Sebastian........./\

    OP:
    How about measuring the step count and comparing the parking brake motors?

    Did you just bolt on your equipment and plug it in or did you retract the old calipers to baseline and then install the new calipers?

    Is the brake module the correct part for the upgrade, rotor thickness, and pad thickness?
    New aftermarket calipers, pads, discs and line locks as part of a big brake kit upgrade. The EPM motor is the orgiginal. I didn't post the rest of the autoscan as that didn't show any faults so i didn't think it would be pertinent? I am new to VCDS so don't know where all the functionality is at the moment. After i had changed everything and put the wheels back on the brakes did apply and I heard the usual motors driving them on. The problem then was that I couldn’t release them either by manually lifting the switch - whilst my foot was on the brake as is required. I also couldn’t pull away by lifting the clutch pedal to biting point. The only way I could release them was to plug in the VCDS and go through the emergency brake test module which cycles them on and off. I can't understand why the fault refers to a short circuit - surely if this were the case the EPB wouldn't work at all as it would have blown a fuse?

    How do i measure the step count?

    Thanks for your help.
    Last edited by Flatcap; 04-28-2017 at 08:37 AM.

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