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Discussion Starter #1
Hey guys,

I've got an ABS light on with the ESC Stabilization fault message on the dash. I've hooked my 2012 Q3 S Line up to VCDS and its showing me that the rear right ABS wheel speed sensor is showing an implausible signal.

Does anyone know if this can be easily changed as a DIY job? I've changed tyres, xenon bulbs in my Q3 before but not much beyond that. If anyone can describe how its done or has a tut, it would be much appreciated.

Thanks!
 

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I had exactly the same but left it to an indie to sort out. I suspect scrabbling around the wheel arch is not the best way to spend your time. Assuming that is where it is.
 

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ABS sensor is located on the back of the hub on Front wheel drive cars or on the side of the hub if 4WD. Which do you have ?
Just disconnect the sensor wire and remove the single mounting bolt. They can be tight and I found an old blunt kitchen knife eased under the sensor flange along with a squirt of WD40 helped the removal process
Thoroughly clean the hole and mounting flange face and coat the sensor with Copperslip or grease when refitting

Cheers Spike
 

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Discussion Starter #4
Thanks Spike,

I've got a 2WD Q3. Ok, that sounds like it would be fairly easy to do. I'll order the sensor, take off the wheel and take a look. Will report back once its been changed.

Thanks
 

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Interesting tale - I friend with a VW Tiguan had the same failure prior to the lockdown. I cleared the codes in case it was just a spurious code, but the code cam straight back again. He bought a new sensor and I was going to fit it for him and clear the codes. Then lockdown came, and his car did not get used for 2 or 3 months, We are now out of lockdown, and he has started using the car again and the code has miraculously vanished without touching the sensor.
 

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Location of the FWD rear ABS sensor -

Q3ABSsensor.JPG

Cheers Spike
 

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Oops, posting the wrong pic is becoming a habit
This is the correct one for the back wheel of a FWD car

Q3ABSrearsensor.JPG

Cheers Spike
 
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Discussion Starter #9
Hi All,

Just an update. So I bought the following sensor from eBay:


It was put onto the car but unfortunately the ABS came straight back. Hooking it up to VCDS though the error had changed from

00287 - ABS Wheel Speed Sensor; Rear Right (G44)
008 - Implausible Signal - Intermittent

to

03842 - RPM Sensor Rear Right: Incorrect Signal

Thinking that this was a cheap duff sensor, we picked up a pagid one instead. Again, this shows the same 03842 error as above after trying to clear the error codes with VCDS.

Looking around, other people have had issues with aftermarket sensors and I was wondering whether anyone could link me to a sensor that they know works in a 2012 8U S Line 2WD TDi. To be fair, it could be something else, and the next step is to get the wiring loom for the ABS system checked as there are other ABS errors showing up as you can see from the VCDS log:

Address 03: ABS Brakes Labels: 5N0-614-109-C6.clb
Part No SW: 5N0 614 109 AE HW: 5N0 614 109 AE
Component: J104 C6 450M V445 0120
Revision: --H07--- Serial number: 00000005881064
Coding: 0052612
Shop #: WSC 00049 770 00154
VCID: 6ED9937A79970C3F7B-803A

1 Fault Found:
03842 - RPM Sensor Rear Right: Incorrect Signal
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 1
Fault Frequency: 5
Reset counter: 68
Mileage: 105226 km
Time Indication: 0
Date: 2020.06.26
Time: 13:19:43

Freeze Frame:
Speed: 0.0 km/h
Hex Value: 0x0000
Bin. Bits: 00000000 00000000
Voltage: 12.00 V
Bin. Bits: 00011111
Count: 157
Hex Value: 0x0000

-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 1K0-909-14x-GEN3.clb
Part No: 5N0 909 144 P
Component: EPS_ZFLS Kl. 293 3305
Revision: 00H22000
Shop #: WSC 00049 770 00154
VCID: 3E79633A6977BCBFAB-806A

1 Fault Found:
01316 - ABS Control Module
013 - Check DTC Memory - MIL ON
Freeze Frame:
Fault Status: 11101101
Fault Priority: 3
Fault Frequency: 7
Reset counter: 68
Mileage: 105226 km
Time Indication: 0
Date: 2020.06.26
Time: 13:19:43

Freeze Frame:
Voltage: 12.13 V
DD
Temperature: 40.0°C
RPM: 0 /min
Speed: 0.0 km/h
Speed: 0.0 km/h
Count: 0

-------------------------------------------------------------------------------
Address 53: Parking Brake Labels: 3AA-907-801.clb
Part No SW: 3AA 907 801 H HW: 3AA 907 801 H
Component: J540 EPB4 VW-86594 0010
Revision: H19 Serial number: 00000000267097
Coding: 0025166
Shop #: WSC 00049 770 00154
VCID: 36697B1A414774FF73-8062

1 Fault Found:
01316 - ABS Control Module
013 - Check DTC Memory
Freeze Frame:
Fault Status: 01101101
Fault Priority: 2
Fault Frequency: 38
Reset counter: 69
Mileage: 105197 km
Time Indication: 0
Date: 2020.06.13
Time: 16:19:37

Freeze Frame:
Voltage: 14.50 V
Count: 105
Speed: 74.0 km/h
Hex Value: 0x1260
Hex Value: 0x0004
Hex Value: 0x0101


Could all these be related to that 1 sensor (they all mention ABS) or be down to something else?

Any ideas welcome

Thanks guys!
 

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The readout for my failed one had a whole string of related errors.
 

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Discussion Starter #12
OK, another update... Mechanic swapped the sensors over on the rear side and the error followed the sensor so we definitely have a sensor issue. I'll give the stealer a call on Monday to pick up a genuine one and hopefully we will be all good. Will let u know...
 

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Discussion Starter #13
Hi all,

So finally she is fixed! I managed to source an original sensor from fleabay and it worked straight away. With the 2 aftermarket ones I tried previously, they had matched as being compatible via reg number through eurocarparts and eBay so either this is wrong OR Audi are pulling a fast one and only allowing original sensors to work. Seeing as that is pretty much illegal I would go with the former so please be careful if you guys are buying any aftermarket ABS sensors. The attached pic shows the part number off the one I bought for the rear right. Hopefully it can be of help to someone who faces a similar issue in the future.

Really appreciate all the help that you guys gave. Thanks to all who replied with info to help me out.
 

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Thanks for the update.
It's always appreciated when people take time to report back, especially so when a 'fix' has been found

Cheers Spike
 
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