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C30 / S40 & V50 '04-'12 / C70 '06-'13 General Forum for the P1-platform C30 / S40 / V50 / C70 models |
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S40 haunted wipers!!Views : 3497 Replies : 48Users Viewing This Thread : |
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Jul 10th, 2018, 17:15 | #11 |
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I’ll admit to not knowing what’s happening here, but have to say I can’t think of a failure mode of the wiper motor that would cause wipers to turn on... I don’t see a new motor being the fix for this, it has to be a control thing.
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Jul 10th, 2018, 17:29 | #12 |
WowIcanwriteAnythingHere!
Last Online: Mar 26th, 2024 16:05
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Agreed. Still thinking about actual wiper stalk, try to take it off and see if wipers still comes up?
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2005 V50 T5AWD M66, Stage1 Hilton tune E-focus torque mount, E46 bi-xenon retrofit v2 , (also available in PDF form), DTSC fully-off mod, Brembo discs+ATE ceramic pads |
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Jul 11th, 2018, 15:32 | #13 | |
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The reason I thought it might be the motor is because I took it apart and found quite a large circuit board in there. That is the element which I thought might be at fault? |
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Jul 11th, 2018, 15:33 | #14 |
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Jul 11th, 2018, 16:33 | #15 |
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I don't know this model, but I've an idea nobody has mentioned so far:
Most wipers have an auto-park feature, meaning that if they're not parked they can still get power to operate even if the switch is turned off, so they can return to their park position. At the park position, this 'parking power' is stopped obviously, or the wipers would carry on. Might the brass track which enables this have come adrift somehow? Or have something metallic caught in it? Even water perhaps? If the brass track which allows this parking to occur is occasionally making contact somewhere it would send the wipers out of the parked position - where they would obviously be an unparked position and continue on until they are parked again? Just an idea. I'd open the motor mechanism and take a look at the brass contacts. Give them all a good clean up and see if that improves things. |
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Jul 14th, 2018, 12:57 | #16 | |
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I now have the correct tool to access the wiper stalk, so I will try that first. Will keep you posted... |
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Jul 15th, 2018, 19:28 | #17 | |
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I cleaned the contacts and put it back. Now the wipers don't work at all ! I think I'll remove the stalk and drive around, waiting to see if the wipers come on. I also think that is what you already suggested |
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Jul 20th, 2018, 17:04 | #18 |
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Jul 20th, 2018, 17:24 | #19 |
WowIcanwriteAnythingHere!
Last Online: Mar 26th, 2024 16:05
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Damn. I am out of ideas then :/ Stalk issue would be easy fix and not very expensive...
now it must be either CEM related (car is recieving bogus signals from its brain to activate wipers) or strictly electric-related, like wiper motor short-circuiting and activating outside of CEM circuit. Wish I could help more.
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2005 V50 T5AWD M66, Stage1 Hilton tune E-focus torque mount, E46 bi-xenon retrofit v2 , (also available in PDF form), DTSC fully-off mod, Brembo discs+ATE ceramic pads |
Jul 20th, 2018, 21:39 | #20 | |
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I'll persevere and will post the fix if/when I find it |
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