2006 a4 Electrical DISASTER - AudiWorld Forums

Go Back  AudiWorld Forums > Audi Models > Audi A4 > A4 (B6 Platform) Discussion
Reload this Page >

2006 a4 Electrical DISASTER

A4 (B6 Platform) Discussion Discussion forum for the B6 Audi A4 produced from 2002-2005

2006 a4 Electrical DISASTER

Old 10-02-2018, 09:14 PM
AudiWorld Newcomer
Thread Starter
Join Date: Aug 2017
Posts: 2
Default 2006 a4 Electrical DISASTER

2006 a4 Quattro 2.0T with a major electrical problem
Heres a list of my problems:
-No functioning windows/sunroof, and interior auto locks only occasionally work, but all buttons and ***** illuminate
-No interior dome lights work although when I open the trunk and rest it down without locking it, they work intermittently.
-EPC lights occasionally comes on but only after putting a lot of miles in a short time, causing it not to shift properly or shift above 4th gear and the RPMs significantly increase. It either starts up with the EPC light on or it comes on while driving. When it comes on while driving and I have the cruise set it disables the cruise, shifts down to 4th and revs up. Have found if I flip the cruise switch to off and shut off/restart car that the light goes off and runs normal (hit or miss how long it takes before I can turn on cruise control without EPC light coming right back on).

Appreciate the help in advance and let me know if you know how to get a cheap wiring diagram
jw4nu23 is offline  
Old 10-04-2018, 01:29 AM
AudiWorld Super User
Join Date: Feb 2010
Location: Fort Worth, Tx
Posts: 2,844

The first 2 point to the comfort module which is under the driver's seat and susceptible to water damage if you drains in the sunroof and ECU areas aren't working properly.

EPC could be any number of things. You didn't mention that the car runs poorly, just the shifting issue. I suspect it is related to the comfort module as that controls cruise control functions. I would download codes from a VAGCOM reader and go from there.

Last edited by lyleswk; 10-04-2018 at 01:32 AM.
lyleswk is offline  
Related Topics
Thread Starter
Last Post
Audi 90 / 80 / Coupe quattro / Cabriolet
12-11-2013 03:19 PM
Politics Discussion
01-28-2008 04:49 AM
AW #29529
Off-topic Discussion
10-22-2007 10:44 PM

Thread Tools
Search this Thread
Quick Reply: 2006 a4 Electrical DISASTER

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: