Wiper motor knackered?

[carreauchompeur]

Folks,

Rear wiper hasn’t worked since I bought the car. Got around to tinkering the other day and found that it was disconnected- When reconnected the motor turns but won’t return, if that makes sense- Turns once and then should obviously come back but doesn’t.

I am not terribly mechanically minded, but is this likely to be something linkage related/easily fixed or should I just buy a new one? Pattern ones about £50 so not a disaster. It’s a 2007 Volvo V70.

Churs!

[eybic]

I had an issue with front wipers years ago and it turned out to be a problem with the relay, not sure if that helps in this instance though

[jeremyh1]

First thing I would do is spay everything with WD 40 and put some electrical spay in the motor if you can

[TooLateForAName]

Have you taken the trim off to get a look at it?

I think you can strip the motor down on these. iirc there is an o ring that fails letting water into the unit which then rusts /seizes the spindle. You should be able to clean it up regrease and replace the o-ring.

[alorotom]

I had similar with my Q7 ...i ended up stripping the tailgate back which was a bit of a mare and then finding out the rear wash pipe had a leak and destroyed the motor with rust etc.

Had to hacksaw the wiper shaft off to remove it but replaced it with a pattern motor for all of about £25 from eBay - took all in about 1hr to sort but if it didnt have to mess about sawing it apart it would have been 20mins tops

[carreauchompeur]

Wiper removed safely... pattern part it is then

[wwpaddler]

Consider getting one from a scrappy. May be cheaper, better quality and longer lasting than a pattern part.

[Penelope Stopit]

carreauchompeur said:

Wiper removed safely... pattern part it is then

You are jumping the gun ordering a new part
Many rear wiper system relays momentarily send a pos or neg to the motor in order to move it out of the park position, once the motor is out of its park position it then relies on another pos or neg to allow its full sweep until returning to the park position and when reaching it a set of contacts in the motor then break that other pos or neg so as to stop the motor in the park position

There is alot more to a wiper than meets the eye

Check the circuit through before possibly blowing your dosh