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01-09-19, 06:20 AM | #1 | |
Classic Audi Pervert!
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Join Date: Dec 2007
Location: Dorset
Posts: 2,182
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Advice please - Coupe GT rear wiper motor
Hi all
Latest job to tackle...rear wiper motor isn’t working. What are the common causes of failure? I’ve checked the obvious (relay and fuse). I’m assuming the best way to access it is by taking out the rear seat and rear shelf? Thanks Last edited by Isimmo; 01-09-19 at 09:49 AM. |
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01-09-19, 09:50 AM | #2 |
Super Moderator
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Join Date: Jul 2007
Location: Sissix-by-the-sea
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Before you do, drench the column switches in contact cleaner. Then if no joy.
It’s back seat out, speakers out, remove parcels shelf. Couple of points to note, if it has not been out before, try to avoid stirring up the decades of dust or wear a mask as the foam on the back can also break down. Then voltage test the wiring. If the wiring is fine, the motor has died.
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1985 WR quattro, 1985 20vT RallyRep, 1993 MTM ABY S2 Avant. 2010 S3 Sportback. |
01-09-19, 10:08 AM | #3 |
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Join Date: Jun 2017
Location: Tonbridge, Kent
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One more point, if as Ian suggests the motor has died, don't leave it switched on for any length of time with the ignition on. My B3 had been left under a car cover outside for several years and the wiper motor had seized up through lack of use. When it was being tested, the wiring got VERY hot, old PVC insulation loses its flexibility and overheating it will exacerbate the problem.
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10-09-19, 12:53 PM | #4 |
Classic Audi Pervert!
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Join Date: Dec 2007
Location: Dorset
Posts: 2,182
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Hi chaps
Thanks for your reply and advice on this. I’ll go through your suggestions and report back |
10-09-19, 01:04 PM | #5 |
Senior Member
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Join Date: Feb 2019
Location: Near an MB ur Quattro
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i've found many seize up because of rust in the spindle.
If you have someone operate the wiper, and then manually assist the blade and find that it does work (you will feel the motor try to help) then you can remove it all, clean the motor and spindle, regrease (to keep water out of the spindle) and reassemble I've done it more times than I remember (at least 4) |
10-09-19, 02:13 PM | #6 |
4 ring whore!
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Join Date: Nov 2007
Location: Polmont
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I've got a couple of these lying around doing nothing.
Let me know if you need one
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1991 90 quattro 20v sport 1991 90 quattro |
10-09-19, 08:33 PM | #7 | |
4 ring whore!
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Location: Wirral
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Quote:
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Coupe quattro 1986:-~450bhp + loooong list of mods! Audi A7 Bi-TDI SLine Black edition 2015 mapped to produce 600lb/ft torque! Audi S4 4.2 V8 cabriolet 2004:- |
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