W219 Washer pump/switch

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Larkone

MB Enthusiast
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Joined
Jun 13, 2016
Messages
1,493
Location
Essex
Car
2008 CLS 320 CDI facelift
Having an issue with low washer water pressure on my CLS. I have replaced the washer pump and cleaned all of the pipes and jets. It now seems I am only getting 10.5V at the pump. I have checked the wiring that I can get to but nothing strikes as an immediate issue. I am suspecting it may be a failing switch which would mean replacing the indicator stalk. Before I go down that route has anyone experienced this issue before and any suggestions for further investigation - fuses/relays (can find no info on those) with corroded connections etc.
 

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