Window Motor Removal

[lesworth]

Hi all,

I want to remove my passenger window motor whil I have the door panel off to test it. I have a feeling it is the culprit causing the passenger window to not work.

Has anyone ever done this before? I've followed the procedure in both the Bentley manual and 101 Projects book but they arent too detailed. I cant seem to manouver the regulator enough to be able to get to the motor...

Thanks,

Les.

 

[tripe]

Les,

If you've removed the trim from your door you can test the motor in situ by connecting a positive and negative feed to the two spade terminals on the motor. These are just visible when you look up through the speaker aperture. The window operation can also be improved by fitting a new liner to the front window runner and greasing the rear runner. If you find the motor to be faulty it can be a bit fiddly to get it out. I find it best to fully lower the window then (from memory) you need to remove the window lift arm by removing the four bolts that are visible on the bare door panel. (remove the window motor wires first). The whole winder assembly will fall to the bottom of the door and by some judicious manouvering the window glass can be slid off the lift arm and the whole arm plus motor can just be removed from the long aperture at the bottom of the door.

The motor can be removed from the arm easily on the bench (a few bolts secure it) and it can then be refurbished/replaced. Be careful if you go down the second hand motor route - the motor type changed in the late eighties and targas/cabs have more powerful motors than coupes.

My memory's definitely fallible though and seeing as it's been a few years since I did this any corrections or more efficient approaches are welcome.

Refitting is the reverse, just a lot more frustrating and time consuming.

 

[lesworth]

Thanks Tripe. The problem is the Window is stuck in the up position. I've also tried to get at the connector for the motor (its very awkward) to remove the connector but either I cant apply enough leverage or the connector need to be squeezed someplace to allow it to be released...(I'm not the most patient of individuals!).

Can the window be lowered manually?

Cheers,

Les.

 

[tripe]

As far as I'm aware the window can't be lowered manually. The problem could be a dodgy window switch or a bad connection. If you have the trim panel off you've more than likely already removed the window switches, if you're nifty with the wiring diagram then you should be able to work out which wires to connect to move the motor independently. If it works when you bypass the switch then that rules out the motor.

If the motor has to come out then you'll need double jointed hands to get at the wiring connectors on the motor (they were simple spade connectors on the last one I fixed). If you're trickyjob intolerant then maybe it's a job left to your local specialist - you've saved a good part of the labour charge already by removing the door trim.

 

[lesworth]

Thanks Tripe. I'm definitely not a tricky jobs person but always like to have a go before admitting defeat. I think from what you have said I still need to perform a bit more jiggery pokery with wiring and switches before looking at the Motor. Unfortunately a previous owner has performed some butchery to the wiring which I need to take into account. Looks like there was a problem with the wiring between the passenger window switch on the drivers door and the switch on the passenger door. The wire has been cut between the drivers door and wing and I cant get to it without removing the door. The previous owner has taken the easy route and used a feed from somewhere else...[8|]