[Biturbos4] check engine light

[Quincy Chiang]

Same here.  CEL came on when it was -25C one night 3 months ago, the car felt fine and I drove carefully home, the light went away on its own 2 days later.  I went to the dealer to have it checked out anyway, they found a faulty engine coolant temperature sensor, it was not totally dead yet but off by enough to cause a CEL.  It's a cheap fix too, Something like $15 and definitely a DIY repair.

But like others have said, you really need to read the code to know for sure what's wrong.

Quincy

----- Original Message -----
From: "John M. Harrison" <JohnMH at uwyo.edu>
Date: Tuesday, March 23, 2004 6:54 am
Subject: RE: [Biturbos4] check engine light

> As Ti says you need to read the fault code(s).  VagCom is an excellent
> and economical tool for this.  The only time my engine check light
> stayed on the cause was a faulty temperature sensor.  Dealer replaced
> under warranty.  Any engine misfire will cause the check engine 
> light to
> come on, but if the problem doesn't persist the dash light goes out.
> Cheers.  
> 
> John M. Harrison  johnmh at uwyo.edu  Laramie, Wyoming
> 2001 S4 Avant 6 spd loaded stock nearing 30,000 miles
> 
> -----Original Message-----
> From: Witte, Michael J (HPFS) [michael.witte at hp.com] 
> Sent: Tuesday, March 23, 2004 6:40 AM
> To: David Kavanagh
> Cc: a6 at audifans.com; Audi S4 list
> Subject: RE: [Biturbos4] check engine light
> 
> Most likely, since its a 2000, MAF.....which will be replaced for 
> free,as per TSB, extended warrantee of 7 yrs and 70,000 Miles on 
> the Bosch
> MAF, again, IIRC.
> 
> you can check through VAG.COM if there's anybody in your area with a
> vag, in order to avoid paying the dealer a $90 diagnostic fee.....
> 
> Hope this helps...
> 
> -----Original Message-----
> From: biturbos4-bounces at www.audifans.com
> [biturbos4-bounces at www.audifans.com]On Behalf Of Ti Kan
> Sent: Tuesday, March 23, 2004 2:24 AM
> To: David Kavanagh
> Cc: a6 at audifans.com; Audi S4 list
> Subject: Re: [Biturbos4] check engine light
> 
> 
> No way to tell for sure unless you check for fault codes stored in
> the ECU.  There are hundreds of possible causes of the CEL, and 
> VAG-COM
> (or ProDiag if you use PalmOS) is your friend.
> 
> -Ti
> -- 
> R 1 3 5  Ti Kan
> |_|_|_|  http://www.amb.org/ti
>   | | |  Vorsprung durch Technik
>   2 4 6
> 
> David Kavanagh writes:
> > The patient is a '00 A6 2.7t. When my wife was driving the car home,
> she 
> > got a check engine light. She correctly pulled over and called 
> me. I 
> > ...
> > Thoughts? The import car dealer I got the car from gave me a 1 
> year 
> > warrantee. Since I picked up the car May 1, 2003, I'm taking it 
> thereto 
> > get codes pulled. Is it a good idea to drive that 15 minutes? 
> I'm 
> > considering a short drive around the block to see if the thing 
> resets 
> > itself. Sure wish I had that VAG-COM now!
> 
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