Parking brake malfunction

[_tones]

Hi,

I was hoping someone on here could advise me about an issue I had with my car. I tried to engage the handbrake a few days ago, and the parking brake light on the button started flashing. At the same time the car kept making a warning noise and a parking brake malfunction warning was on the dash. I tried to stop and start the car to no avail initially. It was only after I restarted the car a few times, the parking brake actually engaged (I could hear the motors doing their thing).

I've scanned with VCDS and got the below faults. It seems fine now but wanted to hear from others who may have had a similar issue and what the resolution was for them

Address 03: ABS Brakes (J104) Labels: 8K0-907-379-V1.clb
Part No SW: 8K0 907 379 AK HW: 8K0 907 379 AK
Component: ESP8 front H04 0070
Revision: -------- Serial number: --------------
Coding: 010500
Shop #: WSC 06325 000 00000
VCID: 020B94879DFACB52A2-8056


1 Fault Found:
00473 - Control Module for Elect. Park/Hand Brake (J540)
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 6
Fault Frequency: 1
Reset counter: 165
Mileage: 104932 km
Time Indication: 0
Date: 2016.09.30
Time: 08:02:04


Freeze Frame:
Hex Value: 0x00C0
Hex Value: 0x4026
Hex Value: 0x122E
Hex Value: 0x02AD
Hex Value: 0x00FF


Address 53: Parking Brake (J540) Labels: 8K0-907-801-V1.clb
Part No SW: 8K0 907 801 H HW: 8K0 907 801 H
Component: EPB Audi B8 H09 0100
Revision: 00000003 Serial number: 10000000380786
Shop #: WSC 00000 000 00000
VCID: 3467025F97CEB5E260-8060


1 Fault Found:
02433 - Supply Voltage for Right Parking Brake Motor (V283)
012 - Electrical Fault in Circuit - Intermittent
Freeze Frame:
Fault Status: 00101100
Fault Priority: 1
Fault Frequency: 1
Reset counter: 165
Mileage: 104932 km
Time Indication: 0
Date: 2016.09.30
Time: 08:02:04


Freeze Frame:
Voltage: 14.10 V
Count: 13
Speed: 0.0 km/h
Hex Value: 0x02E1
Hex Value: 0x0021
Hex Value: 0x0808

Thanks

[chrishamer]

Admittedly I can't help with regards to your technical details you shared.

But I did have a parking break malfunction last year and it turned out to be corroded parking break motors. I ended up having both replaced under warranty. I had issues afterwards and then they replaced the parking break module and switch too.

It seems that they can be susceptible to corrosion though so may be worth checking for that.

Chris

[_tones]

Admittedly I can't help with regards to your technical details you shared.

But I did have a parking break malfunction last year and it turned out to be corroded parking break motors. I ended up having both replaced under warranty. I had issues afterwards and then they replaced the parking break module and switch too.

It seems that they can be susceptible to corrosion though so may be worth checking for that.

Chris

Hi, thanks for the response. I've looked up the codes on Ross tech and they suggest an issue with connection.

02433 - Ross-Tech Wiki (http://wiki.ross-tech.com/wiki/index.php/02433)

I've spoken to someone else and they've mentioned the connectors on the motor need to be cleaned. I'll have to get it to some dealer to have a thorough look but it's not happened since