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  1. #1
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    Question S3 - With a couple of issues- any suggestions?

    Hi Guys,

    Just got my S3 through its MOT and taxed yesterday. She seems to be driving pretty well but has a couple of faults I was hoping you could help diagnose.


    • ESP flashing when accelerating gently from low speed - sometimes this leaves a soft fault until the next start up.
    • ABS light going off when braking gently and also leaving a soft fault on the dash.
    • Temperature gauge will sit on 90 when stationary but drops down as I drive - suspect the thermostat, what do you think?

    The history of the car is that is has been sitting for a few months unused.

    I had to fit a rear ABS sensor I used this one: Audi A3 8L1 Hatch Bosch Rear ABS Sensor Genuine Brake Wheel Speed Sensor | eBay

    The longitudinal acceleration sensor from behind the glove box was missing so I replaced that.

    Apart from that it was just tyres, ball joints and anti roll bar bushings for the MOT.

    Can you suggest any common faults I should check?

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  3. #2
    s3dave's Avatar
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    I would suggest a 4 wheel alignment mate... esp as you have moved ball joints etc..

  4. #3
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    Is the steering wheel on straight when driving in a straight line? dodgy ABS wiring to the sensors sometimes cause this too

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  5. #4
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    I meant to mention that, the wheel is about 10 / 15 degrees off the straight ahead.

    It also looks like a lot of camber on the back wheels and I can't see any adjustment, the car is lowered on eibach springs.

  6. #5
    <tuffty/>'s Avatar
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    Gotta love it when peeps leave that little bit of info out lol...

    Righty... as said, get a wheel alignment done... the steering wheel needs to be straight as the steering angle sensor will be out of calibration and the ABS/ESP system will think you are turning a corner but get confused as the speed sensors are reading the same and not a differential as the ECU is expecting..

    Rear camber needs adjustable tie bars to bring back in then get a 4 wheel laser alignment

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  7. #6
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    OK great, I'll get it booked in for later this week.

    I'm not sure if I can afford the read tie bars just now but at least I'll get the front sorted.

    Would that also explain the ABS getting confused?

  8. #7
    <tuffty/>'s Avatar
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    Quote Originally Posted by Mi7rennie View Post
    ...Would that also explain the ABS getting confused?
    Potentially yes... assuming no other issues exist... get the alignment done first then take it from there...

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  9. #8
    jojo's Avatar
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    Quote Originally Posted by Mi7rennie View Post

    It also looks like a lot of camber on the back wheels and I can't see any adjustment, the car is lowered on eibach springs.
    Assuming you have the same Eibach springs I had previously, the rear camber is not a major issue, unless you are doing mega mileage. Mine wore out evenly at the back, but I do like to take corners quickly in mine!



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  10. #9
    vrbob's Avatar
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    S3 - With a couple of issues- any suggestions?

    Temp issues is probably thermostat but a vcds scan might point to the coolant temp sensor
    Audi S3 8L BAM 225 2002 - Ming Blue : Silver Heated Leather, Armrest, RNS-E - Bose, Alloy Mirrors, 18" RSTT`s, Sunroof, Cruise, AutoDim Mirror & Usual S3 Extras.
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  11. #10
    Ben S3 8P3's Avatar
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    how much does a wheel alignment cost roughly? My 8P3 is probably 3-4 degrees to the left on the steering wheel

 

 

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