EPC, ABS and ESP lights: HELP!
 

ON no! :-(

All 3 of these lights came on on the way to work thi morning, coupled witha# a serious power loss.

The revs seem to go up OK, it's just that there's not much transmitted to the drive.

Anyone got any ideas?

I would suspect something to do with either the MAF or the throttle body because the EPC (Electronic Power Control) light is on. As soon as the engine ECU doesnt think it can control the power output of the engine adequately it tells the ABS/ESP to shut down just in case it cant shut off the throttle if things get out of control.

A quick VAGCOM should tell you - good luck.

Thanks Dave. Will this show up on VagCom? And, if you're right, what kind of a bill am I looking at?

Yes it will definately show up in vagcom in the engine ECU and the ABS ecu.

Price wise - give us a call or email with the faults or specifically what you need and we can take it from there.

Dont worry - I'll tell the guys to take it easy on you ... :)

I think I'm going to have to drop it in to my local Audi indy on the way home as, because this is my daily driver, I can't live without it. I'm hoping I can leave it there, get the train home, and get it back tomorrow.

Is it a quick job do you think?

It will depend what it actually is - I am only guessing here - MAF and Throttle body are quick swaps if your local place has them available. There are other things it could be so until you get the diagnostics I cant really say.

What I can say is that whilst a new MAF will be around £100, a new throttle body (if that is what your local place suggests) will be close on £1k so I wouldnt leave them a blank cheque until you find out what the problem really is. If it is the throttle body we should be able to help at a fraction of that cost.

Thanks again, Dave. If it's the throttle body, I'll give you a call and see if you can send one direct to A4 Audi

Well that was strange. Got into the car after work and the EPC light had gone out, but the other 2 (ESP and ABS) were still on, and the power was back. Got it to A4 Audi and parked it up whilst I went into reception. Andy came out a couple of minutes later with the all singing and dancing VagCom thingy - started it up - and no warning lights at all! No real clues from VagCom either.

He suspects that there may be water ingress into the connections for the throttle pedal, but, for the moment, all is well again. :)

great news Jim. The ESP and ABS together (if it happens again) could be an ABS sensor on the way out

cheers

How old is the battery Jim?