Problem with electric windows

[paul007]

Hi - bought my new car sunday (E30 318i cab) but windows only go down if you open one of the doors - basically if the door switch is released ( the one that makes the interior light go on when you open a door)

why is that and what do i need to do to fix it?

Thanks

[clipper]

Have you done a search in Technical Help for this problem by any chance ?

[daimlerman]

Windows are wired with two feeds,one is live with the doors open,other with ign on.

I would start by checking for a blown fuse.

[paul007]

i dont have a manual for 318i 1993 convertible - does any one have a layout of what fuse does what?> i had a quick look none looked blown

[grantfk10]

This should help, make sure you check fuse 17 (28 should work the windows with doors open) -

[robsy]

if the fuses are ok- it could be the wiring pins in the large pin connector as they get corroded - would suggest pulling it out and wd40 ing it - then see if that helps.

[paul007]

awesome i went out and had a look - looks like its fuse no. 17 - thanks guys

[GBB]

Could also be a switch shorting - I had same symptoms but mine kept blowing fuse 17, fitted a new switch to nearside front and so far so good (so no doubt it will blow now)