w211 Windsheld wipers start before washer pump
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w211 2.2 CDI 2008
w211 Windsheld wipers start before washer pump
Hi. In my w211 Windshield wipers start before washer pump. If there dust on windshield wipers scratch the windshield. Is there way to change the working order of wipers and washer pump?
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Joined: Jul 2021
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2006 E280
I tried three different brand vehicles today, and all of them have that same function, wipers before washer.
Some sort of delay circuit would be needed to operate the washer before the wipers.
Though knowing how Mercedes is built, it would be rather difficult, or even impossible to build such a circuit, for a rather little use.
Override button for the washer pump, and when the rain sensor detects water it automatically wipes the glass.
Some sort of delay circuit would be needed to operate the washer before the wipers.
Though knowing how Mercedes is built, it would be rather difficult, or even impossible to build such a circuit, for a rather little use.
Override button for the washer pump, and when the rain sensor detects water it automatically wipes the glass.
Last edited by Heguli; Jan 25, 2023 at 03:47 PM.
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From: US
2008 E350, 2012 ML350, 2014 E350, 2015 ML350
A forum member modified his W212 wiper/washer system by adding a check valve after the fluid reservoir's pump. Once the hoses are full, the fluid should come out as soon as the wipers start moving. It takes time to move the fluid from the bottom of the reservoir through the hose up to the nozzles.
https://mbworld.org/forums/e-class-w...ml#post8419721
His solution not only works, but it is elegant. You can remove it, and return it to the stock installation. Recall that for the W211, you need to take out the right fender and be careful not to break crusty plastic; otherwise, may need a new pump/hose/reservoir.
Parts (sample for visuals), sure you can get them anywhere and you only need a few inches of tubing.
Valve: Tubing: clamps:
https://mbworld.org/forums/e-class-w...ml#post8419721
His solution not only works, but it is elegant. You can remove it, and return it to the stock installation. Recall that for the W211, you need to take out the right fender and be careful not to break crusty plastic; otherwise, may need a new pump/hose/reservoir.
Parts (sample for visuals), sure you can get them anywhere and you only need a few inches of tubing.
Valve: Tubing: clamps:
Last edited by JCM_MB; Jan 25, 2023 at 10:53 PM.
Super Member
Joined: Jul 2021
Posts: 528
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2006 E280
A forum member modified his W212 wiper/washer system by adding a check valve after the fluid reservoir's pump. Once the hoses are full, the fluid should come out as soon as the wipers start moving. It takes time to move the fluid from the bottom of the reservoir through the hose up to the nozzles.
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Newbie
Joined: Jan 2023
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w211 2.2 CDI 2008
Thak you for reply. I think that @juanmor40 's solutions is the best variant
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