zerologic Posted November 13, 2006 Report Share Posted November 13, 2006 Morning all, Over the weekend my ESP light decided to come on! When i start up its not there but as soon as I press the brake it lights up, switch off it goes again untill i press the brake again! Can anyone tell me what might be wrong? Cheers. Link to comment Share on other sites More sharing options...
PetrolDave Posted November 13, 2006 Report Share Posted November 13, 2006 Try checking your brake light bulbs - if both blow this can cause the ESP light to come on (and IIRC it only checks the brake light bulbs when you press the pedal, so it would fit with your description). Link to comment Share on other sites More sharing options...
zerologic Posted November 13, 2006 Author Report Share Posted November 13, 2006 [ QUOTE ] Try checking your brake light bulbs - if both blow this can cause the ESP light to come on (and IIRC it only checks the brake light bulbs when you press the pedal, so it would fit with your description). [/ QUOTE ] I will have a look later on, but in the past when i have had stop/tail lights go the DIS has given me a big fat warning! so why wouldn't it this time? Link to comment Share on other sites More sharing options...
lottiefox Posted November 13, 2006 Report Share Posted November 13, 2006 I think there is a sensor down there somewhere that can trigger the ESP light to come on. Mine came on once and stayed on after I'd turned sharply over a speed bump. It went off when I turned the engine off and Audi could not find any faults when i had it checked. Could be the same sort of thing? Or else brake lights both blowing has been identified in the past too! Link to comment Share on other sites More sharing options...
zerologic Posted November 14, 2006 Author Report Share Posted November 14, 2006 I have checked and all brake lights are working correctly! I guess i could have bumpped something but this light comes on as soon as i press the brake, even when stationary. I guess I will have to take it in and see whats up! Thanks for the replies... keep em coming if anyone else has some ideas? Link to comment Share on other sites More sharing options...
shark_90 Posted November 14, 2006 Report Share Posted November 14, 2006 Could still be a faulty brake switch though. Mine was faulty and the brake lights still worked OK Link to comment Share on other sites More sharing options...
zerologic Posted November 14, 2006 Author Report Share Posted November 14, 2006 [ QUOTE ] Could still be a faulty brake switch though. Mine was faulty and the brake lights still worked OK [/ QUOTE ] Should this be easy enough to diagnose? I will give the garage a call later on and see if they can have a look at it. Link to comment Share on other sites More sharing options...
rockstar Posted November 14, 2006 Report Share Posted November 14, 2006 just recently had same problem ....new brake light switch fixed the probable....then again that for m,e wasnt the biggest problem ,having my clutch changed and a new fly wheel was the biggest headache!! not to worry....only means ive cancelled christmas this years ,fecking audis! Link to comment Share on other sites More sharing options...
zerologic Posted November 14, 2006 Author Report Share Posted November 14, 2006 [ QUOTE ] just recently had same problem ....new brake light switch fixed the probable....then again that for m,e wasnt the biggest problem ,having my clutch changed and a new fly wheel was the biggest headache!! not to worry....only means ive cancelled christmas this years ,fecking audis! [/ QUOTE ] Ok thanks for that, it doesn't sound too expensive (hopefully) These things always seem to some in 3's... i had that ESP light, a slow punchure and then this morning the glow plug warning light normally only ever seen on start up decided to start flashing at me but thankfully that went away again after a few miles!! Link to comment Share on other sites More sharing options...
rockstar Posted November 14, 2006 Report Share Posted November 14, 2006 "come in threes" is normally correct!...but ive got a list of jobs that have been fixed! cars is fine now but a a rather large price tag! brake switch isnt that expensive though! Link to comment Share on other sites More sharing options...
zerologic Posted November 21, 2006 Author Report Share Posted November 21, 2006 Ok just had this checked out at the garage and the fault code causing the ABS/ESP light is the brake switch as mentioned before. The other fault is for a fuel injector fault but they think that once the brake switch is replaced then the other fault will go away (hopefully) Link to comment Share on other sites More sharing options...
rockstar Posted November 21, 2006 Report Share Posted November 21, 2006 great news (hopefully) Link to comment Share on other sites More sharing options...
zerologic Posted November 24, 2006 Author Report Share Posted November 24, 2006 All sorted!! a £4.60 brake switch and some labour to fit it and re-set code etc. No more fairy lights on the dash!! the Engine coil light was caused by the same fault with the brake switch so no more work needed! Link to comment Share on other sites More sharing options...
shark_90 Posted November 24, 2006 Report Share Posted November 24, 2006 Oh look Nice one mate, glad it's sorted Link to comment Share on other sites More sharing options...
trenery Posted December 10, 2006 Report Share Posted December 10, 2006 I got the same error. But only in heavy rain. The ABS light come on and the glow plug light starts flashing. If I then slow down the car goes into some sort of safety mode and wont go over 20mph. Turn the car off and restart and the fault has gone. But can come back a few moments later. Audi, changed the break switch (seems like they do that for any abs warning problem.) I am now waiting for heavy rain to see if it comes back - which is not much fun on a wet motorway. I am not convinced that it's the switch as it only happens in heavy rain. Time will tell. The car is an 05 3.0 tdi. I must say, the warranty service from Audi has been very good. I will keep you posted. Link to comment Share on other sites More sharing options...
shark_90 Posted December 12, 2006 Report Share Posted December 12, 2006 Something similar happened to me, apparently water had splashed a multiplug in the engine bay in heavy rain (near the ECU I seem to remember) which caused the plug to corrode. I had two accelerator position senders before they realised it was something else that was causing the position sender to fry... could be worth suggesting that to your dealer? Link to comment Share on other sites More sharing options...
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