What is up with A4 check engine lights?

[mholme3 at aol.com]

  Do what others have said and VAG-COM it to find out what the code(s) are for. If it is for an O2 sensor, you have options besides the dealer. Replacement is time consuming but not that hard with the right tools. I had the same emissions code popping up on me for a while and it was for a cat below threshold. Before I bought the car, the dealer said it needed a new cat.. A new primary O2 sensor fixed the CEL. Definitely pop for a VAG-COM if you are buying one of these cars, and bring it with you while inspecting prospective purchases. It pays for itself quickly..
 
 Marques
 
 87 4ktq
 00 S4
    
 -----Original Message-----
 From: tigran at tigran.com
 To: quattro at audifans.com
 Sent: Wed, 21 Feb 2007 2:16 PM
 Subject: What is up with A4 check engine lights?
 
  Hi Guys,



I have been in the market for a 96-99 2.8L A4 for the past few weeks. Have

called quite a few of the ads in my area (seattle) and it seems like every

other car has a check engine light that will not go away. WTF is up with

that? Usually, that is some emission control BS - O2 sensors or EGR - all of

that garbage is dealer-only and will run $1-2k to fix... What I am wondering

is why are these problems so common on these cars?







Tyson Varosyan

Technical Manager, Uptime Technical Solutions LLC.

tyson at up-times.com
www.up-times.com 

206-715-TECH (8324)

UpTime/OnTime/AnyTime 





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