V70: - Fixed: non-functioning power windows

Distendo · Jul 11th, 2011, 12:38

'98 V70
Rear n/s window non-functional on either switch (failed when down, of course). Replaced motor (not an easy job), worked for a while then stopped. Suspected electrics, maybe connector.
Then driver's window packed up (failed when down, of course). Tested motor with made-up lead (with plug connector and croc clips) which was ok. Could hear clunk from relay within switch, so suspected fault there (presumed relay sensing overload & cutting power or something).
Ckecked out replacements, around £70 after-market job, or £40 used on Ebay. Did search on repair and found these instructions at
http://www.matthewsvolvosite.com/for...hp?f=1&t=38245
(or search using +v70 +"Drivers door power window switch repair").
Opened switch & gently cleaned dust and other crud using toothbrush dipped in contact cleaner (I'd have used meths if I know where it was). Slide plastic bushes back & forth under contacts to open & close to allow brush to get in there.
Reassembly fiddly only due to sprung poles fitted into buttons: just take it easy and they'll fit.
Refitted, both windows now work.

christheancient · Jul 11th, 2011, 12:45

Glad you got it sorted the cheap way!

Distendo · Nov 19th, 2019, 21:07

Turns out not so much...

Some improvement, but it looks like it may be significantly due to a duff door lock.

How I prefer cars with simple wiring. Get a multimeter on it and you soon find out what's up. Digital comms are all very well, until they fall over, then you're at the dealer's mercy @ $$$.

Jul 11th, 2011, 12:38	#1
Distendo Member Last Online: Sep 17th, 2023 23:56 Join Date: Mar 2009 Location: Birmingham	Fixed: non-functioning power windows '98 V70 Rear n/s window non-functional on either switch (failed when down, of course). Replaced motor (not an easy job), worked for a while then stopped. Suspected electrics, maybe connector. Then driver's window packed up (failed when down, of course). Tested motor with made-up lead (with plug connector and croc clips) which was ok. Could hear clunk from relay within switch, so suspected fault there (presumed relay sensing overload & cutting power or something). Ckecked out replacements, around £70 after-market job, or £40 used on Ebay. Did search on repair and found these instructions at http://www.matthewsvolvosite.com/for...hp?f=1&t=38245 (or search using +v70 +"Drivers door power window switch repair"). Opened switch & gently cleaned dust and other crud using toothbrush dipped in contact cleaner (I'd have used meths if I know where it was). Slide plastic bushes back & forth under contacts to open & close to allow brush to get in there. Reassembly fiddly only due to sprung poles fitted into buttons: just take it easy and they'll fit. Refitted, both windows now work.

Jul 11th, 2011, 12:45	#2
christheancient Aged Volvo Lover Last Online: Sep 16th, 2021 10:19 Join Date: Jan 2011 Location: A place in mendip-land famous for its cheese - and its gorge	Glad you got it sorted the cheap way! __________________ Our children don't inherit the world from us. We are borrowing it from them.

Nov 19th, 2019, 21:07	#3
Distendo Member Last Online: Sep 17th, 2023 23:56 Join Date: Mar 2009 Location: Birmingham	Turns out not so much... Some improvement, but it looks like it may be significantly due to a duff door lock. How I prefer cars with simple wiring. Get a multimeter on it and you soon find out what's up. Digital comms are all very well, until they fall over, then you're at the dealer's mercy @ $$$. __________________ 1998 V70 T5, B5234T3

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