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2003 Audi A4 partial electrical failure

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foobardownbar
New User

Oct 26, 2016, 3:00 PM

Post #1 of 4 (1112 views)
post icon 2003 Audi A4 partial electrical failure Sign In
2003 Audi A4 Cabriolet
3.0 litre
90k miles

Having issues with anything electrical controlled from the steering wheel controls as well as the climate control.

Initial symptom was the car turning on and the temperature display showing Celsius rather than Fahrenheit.

I thought this was an issue with the ignition switch, a known source of problems with these cars. I went ahead and replaced it today and no change. Next thought was it might be a fuse, but strangely there have been brief periods (< 5 minutes) when the problems disappear. Seems like a fuse doesn't fit this.

Evaluation of the symptoms:
Can flash high beams
Can't set high beams to stay on
No climate control
No turn signals
No cruise control
Radio works
Steering wheel radio controls don't work
Temperature in Celsius


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Oct 26, 2016, 3:27 PM

Post #2 of 4 (1105 views)
Re: 2003 Audi A4 partial electrical failure Sign In
Not my specialty ever for a brand of car but smacks of something like this car got seriously wet or flooded at some point.
Still not sure but can't think of one thing that would cause all that trouble except a water (dirty or rain) problem. An insurance claim if it was and while you owned it,


T



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Oct 26, 2016, 3:46 PM

Post #3 of 4 (1102 views)
Re: 2003 Audi A4 partial electrical failure Sign In
Do you have an Airbag warning light on?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



foobardownbar
New User

Oct 26, 2016, 4:31 PM

Post #4 of 4 (1096 views)
Re: 2003 Audi A4 partial electrical failure Sign In
Not sure when it would have gotten wet. I've owned the car for several years and nothing unusual has happened with it, to my knowledge. And, funny enough, I live in an area that has been suffering a drought.

No airbag warning. No warnings of any kind.


(This post was edited by foobardownbar on Oct 26, 2016, 4:31 PM)





 
 
 






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