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Date: Sun, 23 Mar 2003 22:17:35 GMT
From: Paul Halliday <>
Subject: Re: faulty window motor

in article b5l8ff$2aien0$, Grunff at wrote on 23/03/2003 21:18: > Doug Smithson wrote: >> Is it a big deal to replace the faulty driver's side electric motor with the >> good old crank?...It's an '85 900 turbo. > > Remove the whole mechanism, strip it down, clean it, lube it, > put it back in, and it will work - I promise. > > I've yet to see a burnt out motor on a 900 window mech. It's > always either a rusted motor, a sticky gearbox, or a rusted > regulator mechanism. > > None of it is difficult, and no special tools are required, but > it may take you a while first time round. If you have problems, > I'm happy to try and help. First things first. Are you sure the motor/mechanism is dead, rather than just seized? Once the door panel is removed, spray a lot of anti-seize (like WD-40) all over everything you can see and grease up afterwards. Leave it overnight and have a mate operate the switches while you "assist" the window up and down. A whole load of grunting can get the thing moving again :) If that fails, ensure that your mate stays around while you remove the mechanism from the door - depending on how well the glass can move, it can be painful (at best) if the glass drops while you have your hands in there. An '85 900i bit me once :) That said, good old-fashioned winders are nice. I thought I'd found some suitable replacement doors (mine were very rotten) with hand winders for a great price - same paint code as well, bargain! I rang to double-check before I set off on the reasonably long run to collect them that they'd come off a 4 door. I think my 3 door would've looked very odd! Paul 1989 900 Turbo S

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