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Old 10th September 2017, 06:40 PM
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Conquistador Conquistador is offline
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Question S8 windscreen washers dead

Don't drive my S8 often these days, if it's a dry day then I'll cycle to work locally.

Anyway, I went to spray the windscreen washers today when I drove it today, and... nothing. The wipers still do the 3 wipes but no fluid sprays out and there is no sound from the motor like there usually is.

Can anyone suggest where to start investigating next?
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Old 10th September 2017, 06:46 PM
1781cc 1781cc is offline
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Probably sounds too simple when you are expecting the worst, but... have you tried the fuses?
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Old 10th September 2017, 06:49 PM
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Oh yeah I should have added, I've checked the 5A fuse for the 'heated washer jets' (swapped it with another) and it didn't fix anything.
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Currently '8-less
Previously:
- Aqua Blue Pearl D3 S8 - Kamut Beige leather, ACC, B&O, factory RSE, solar sunroof, electric blinds, ski bag, Homelink, comfort headrests.
- Aqua Blue D2 S8 - Grey leather/Alcantara
- D3 A8 3.0 CVT
- D3 3.7 V8

Last edited by Conquistador; 11th September 2017 at 09:44 AM.
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Old 10th September 2017, 07:11 PM
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briang9 briang9 is offline
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Probably a different fuse for the motor itself I think
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Old 11th September 2017, 09:51 AM
mattylondon mattylondon is offline
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The windscreen washers are sprayed from a pump connected to the wiper motor control unit. As the wipers work it's not a relay or fuse. Check the wiring from the wiper motor unit, pin 3 grey red wire, with a multimeter if you can. It could be a dead pump, faulty wiring or bad earth point.

Is there a logged fault in 09-Central Electrics?
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Old 12th September 2017, 07:24 AM
mannyo mannyo is offline
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Take the easy options first.

Are you sure there is screenwash in the tank, my headlight washer motor does not work when the screenwash is low for example.

Are the jets blocked, I seem to need to clear mine on a regular basis. Only on the Audi though, the Volvo is always fine.
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