Join Date: Dec 2005
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Hello and welcome to the forum.
It sounds like either a bad earth somewhere,or the wires running into the tailgate are chaffed and touching.
The first thing I'd do is open the tailgate and try and check the wiring loom as it goes through from the roof to the tailgate (by the hinges).It will probably be covered by a rubber gaiter,but if you carefully pull this out,you should be able to see the wires.Check that none are broken or damaged.If all looks well,then get back to us and we'll think of something else.
I'd rather push my Alfa than drive a BMW....
Currently in Lagdti's garage:
2004 Saab 9-5 HOT Aero and a 2001 Audi A3 1.8 Turbo