kermitfrog Posted August 18, 2006 Report Share Posted August 18, 2006 Just had a full set of Goodyear GSD-3s fitted this morning However, driving home from work earlier this afternoon, the ABS and ESP warning lights were on constantly This wasn't the case when I was driving back to work from the garage. Restarted the engine when I got home. ESP warning light went out after the inital fault scan but the ABS warning light stayed on. Any ideas on what the problem could be? A knocked ABS sensor somewhere due to cack handed tyre fitter maybe? Link to comment Share on other sites More sharing options...
iceman2002_uk Posted August 18, 2006 Report Share Posted August 18, 2006 possibly, get the dealer to link it upto diagnostics and interrogate fault memory. Audi Roadside Assistance should be able to help if ur covered Link to comment Share on other sites More sharing options...
kermitfrog Posted August 19, 2006 Author Report Share Posted August 19, 2006 Cheers bud. Probably no need for vag-com as I'm fairly certain a sensor's been disturbed. Anyone any idea where the ABS sensors are located (front and rear) on an S3? Link to comment Share on other sites More sharing options...
iceman2002_uk Posted August 20, 2006 Report Share Posted August 20, 2006 To be honest mate, its not your problem where they are, fact is the lights come on and you have Audi Roadside Assistance for that. Make sure you ask for an Audi Dedicated Technician though as they are the only technicians that carry VAS-5052 diagnostics and can interrogate the memory and reset fault codes. (i believe that if the ABS logs a fault they light will stay on until reset with VAS-5052) The RAC only have access to the engine emissions side of diagnostics, as i was told yesterday! good luck! Link to comment Share on other sites More sharing options...
kermitfrog Posted August 20, 2006 Author Report Share Posted August 20, 2006 [ QUOTE ] you have Audi Roadside Assistance for that. [/ QUOTE ] On a 6 year old S3 Audi won't even send me an xmas card coz I'm so low down on their food chain Cheers for the advice Icy. Will take it back to the fitters (who I know) tomorrow and get them to check it. If that fails, will head over to my friendly independant who has vag-com. Will let you know how I get on. Link to comment Share on other sites More sharing options...
iceman2002_uk Posted August 20, 2006 Report Share Posted August 20, 2006 possibly not on 6yr old, but am pretty sure you need diagnostics for it cos its a safety critical system. Link to comment Share on other sites More sharing options...
blix Posted August 20, 2006 Report Share Posted August 20, 2006 [ QUOTE ] Cheers bud. Probably no need for vag-com as I'm fairly certain a sensor's been disturbed. Anyone any idea where the ABS sensors are located (front and rear) on an S3? [/ QUOTE ]paul is the best guy to ask Link to comment Share on other sites More sharing options...
kermitfrog Posted August 20, 2006 Author Report Share Posted August 20, 2006 [/ QUOTE ]paul is the best guy to ask [/ QUOTE ] He must be on holiday Too much of a coincidence - new tyres/abs warning - here's hoping anyway! Better not be failed abs pump or something just as expensive after the money spent on it over the last few months - tyres, refurbed alloys, service, new ps rack Link to comment Share on other sites More sharing options...
colly Posted August 21, 2006 Report Share Posted August 21, 2006 Majority of the time it is down to the sensors located under the driver \ passenger seat. Possibly a loose connection, check connections and clear the codes with VAG COM if you have access to one. Link to comment Share on other sites More sharing options...
Paul Posted August 21, 2006 Report Share Posted August 21, 2006 Only ever noticed the front sensors. The whole assembly sits behind the hub, consists of a perforated ring, with a sensor behind that looking at the perforations. so as the wheel turns the sensors work out the pulses on/off/on/off etc etc. Despite painting my rear calipers, I cant recall seeing anything on the rear, Im not even sure there are any on the rear tbh as the rears on the S3 only do about 20% of the total braking. If you fit too long a wheel bolts its possible to screw through the hub and mash up the abs perforated sensor ring. But in this case its highly unlikely as the bolts are the original length. but entirely possible for example if you had spacers, and they forgot to refit them! I watch my car like a hawk when I have the tyres off, as the spacers need refitting to clear the brakes, to make sure they dont loose the tapered seat thats a seperate part of the locking bolts etc etc. Its also worth noting, the ESP fault light, is not exclusively ESP, When I blew a hose of the intercooler, it threw the ESP light, and switched the car into 2wd. In this case it was pretty obvious what the issue was, but its a good example. ESP must use boost or at the very least monitor it. The turbo intake pipe for example, is different for cars with ESP , and has another take off compared to non ESP models. So a diagnostic scan might help narrow down which sensor is faulty, or what is setting the light off. Or if your sure its related to the tyre change, you could have one wheel off at a time and just check everything visually. Make sure nothings hanging off, bent, damaged etc. But there is no guarantee that you will find it, or that the fault even lies there. Link to comment Share on other sites More sharing options...
shark_90 Posted August 21, 2006 Report Share Posted August 21, 2006 The ESP light is a generic warning light, unfortunately it comes on for just about anything. I had an injection fault on my TDi A4 and up popped the ESP light! You will need to get the car scanned, as some faults will leave the light on until it is reset. iceman - not the case that only Audi Assist carry VAG compatible computers. The RAC came out to me in December and immediately diagnosed faulty accelerator position sender with his laptop. He reset the fault, but it came back, so I ended up getting a tow. And I carry my laptop with me all the time Link to comment Share on other sites More sharing options...
kermitfrog Posted August 23, 2006 Author Report Share Posted August 23, 2006 Problem nearly solved Had it over at The Cross Garage, my friendly VAG specialist (based in Kirkintilloch, just outside Glasgow for anyone who's interested). Hooked up to VAG-COM and in less than a minute it was the front nearside sensor causing the fault. No charge - beat hat Audi! Will have a closer inspection done later this week. Cheers for all the help and advice guys Link to comment Share on other sites More sharing options...
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