C4-A6 2.6 1995 Electrical Problems

Newbie Joined: Sep 09, 2011 Posts: 1

Had the car for 10 years no problems, love it even though its tired.
Last 3 weeks both side light fuses blown at least 3 times but cannot find the reason.
When I switch on the rear fog lights, the indicator glows, but there is no power to the rear fogs. However the front fogs and indicator come on as well !. When I switch on the front fogs it has no effect on the rear.

No work has been done on the car since January when I had a trailer hitch fitted. I have check all the hitch wiring and it seems perfect.

I am stuck and would appreciate any suggestions apart from selling it Smile

PS Its a LHD and I am in Germany.

Posted: Sat Sep 10, 2011 3:52 pm

Is it the avant? If so the rear foglights wiring goes via the flexi-boot on the LHS of the tailgate, this stresses the wires and eventually they break. (I'm guessing there might be a similar problem with the saloon).

Not sure on the source of sidelight fuses going, but I'd be checking all your light fittings for water getting in- a good way to cause a short.

Posted: Mon Sep 12, 2011 11:24 am

Check the earth connection to the fuse box,

then check the earth to the rear light units

Posted: Sat Jan 21, 2012 9:41 pm

First check the wiring.