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Rear window demister fuse keeps blowing

Posted: Thu Nov 06, 2008 11:17 am
by AndrewJ
Some weeks ago the rear window demister fuse blew, ... and its replacement ... and another. My local garage has spent a lot of time without success. Especially as pink female fuses (which are smaller than PAL type 0-379-03) are as rare as hen's teeth. However, with a bit of fettling (i.e. fitting a male spade fuse) I have discovered that when the demister is switched on the side lights also come on ... and the fuse blows. (:-( Any ideas where to start looking for this fault?
1995 Bongo SGL3
Many thanks
Andrew Williamson

Re: Rear window demister fuse keeps blowing

Posted: Thu Nov 06, 2008 11:55 am
by teenmal
Hi Andrew,

I would start by checking the wiring around, and in the tail gate for damage.

Cheers Mal..

Re: Rear window demister fuse keeps blowing

Posted: Thu Nov 06, 2008 1:06 pm
by missfixit70
I'd second that, sounds like the demister & numberplate wiring may be shorting, try at the flex section between door & body first, have you screwed anything into the rear door or that area recently?

Re: Rear window demister fuse keeps blowing

Posted: Thu Nov 06, 2008 1:34 pm
by dreamwarrioruk
I did a factsheet on this as the wires are very prone to damage in the grommet area. Certainly looks like it's shorting out