Windscreen washer tank leaking - Mercedes-Benz Forum
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#1 (permalink) Old 09-20-2009, 07:20 PM
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Question Windscreen washer tank leaking

Hi Guys, (includes Gals too )
Just done a forum search with no useful results.
My screen wash tank keeps losing 80% of its contents to the point
where the warning message appears on the dash.
Has anyone had experience of removing the tank ?
At first glance - some of the pipework seems pretty rigid and I'm
not sure how I'm going to get it off to inspect it.
Is there anything I should be looking for ??
Either as I remove it or generally to identify the leak.
Are specific seals known to be weak ?
I may need to invest in a workshop CD rom.
Any pearls of wisdom welcome !
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#2 (permalink) Old 09-21-2009, 09:28 PM
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mine was always leaking until i removed and plugged up the headlight washer tube.
mine was always draining somewhere down by the headlight washers.
i never used those anyway.
the tube was accesable without removing the tank, just traced it a bit to make sure it was the right tube, i think i cut it and plugged it with a bolt and a zip tie.
wedged it so the tube was higher than the level of the bottle , just for extra safety.
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#3 (permalink) Old 09-21-2009, 09:41 PM
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A fairly common leak point is the washer pump grommet, it's a cheap (and inexpensive) part that takes five minutes to change.

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#4 (permalink) Old 09-23-2009, 08:31 AM
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Quote:
Originally Posted by gregs210 View Post
A fairly common leak point is the washer pump grommet, it's a cheap (and inexpensive) part that takes five minutes to change.
I second this one....just fixed mine last week. there is an "o" ring on the washer pump that needed replaced. 10 min job. I've already replace the headlight squirters but that is worth a look too as mentiuoned above.
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#5 (permalink) Old 09-23-2009, 11:55 AM
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Thanks Guys,
Greg - is there a sticky or DIY thread you know of ?
I've done a search but no luck so far
jstetor53 - was it obvious as to the procedure ?
Did you have any manual to follow ?
I don't want to take your time but could you summarize your "10 min job" sequence
Thanks again guys
Max
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#6 (permalink) Old 09-23-2009, 12:05 PM
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Update
Sorry Greg - just done a more specific search for "washer pump grommet"
and got plenty of threads to read through.
So my question has changed...
I know the W210 E class share engine bays with the W208 CLK, but are there any other models with similar engine bays where the washer pump set-up may be the same. I can't see a W208 in the search results.
Thanks
Max
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#7 (permalink) Old 09-23-2009, 03:15 PM
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Quote:
Originally Posted by Max Korin View Post
Thanks Guys,
Greg - is there a sticky or DIY thread you know of ?
I've done a search but no luck so far
jstetor53 - was it obvious as to the procedure ?
Did you have any manual to follow ?
I don't want to take your time but could you summarize your "10 min job" sequence
Thanks again guys
Max
k I don't have a camera here at work but let me see if I can explain my leak, it is very easy . If you look at the front corner of your washer bottle (inboard coroner) you will see the pump, its a vertical cylinder with a wire plug on top. At the bottom of the pump you will see a braided hose leading out of the pump, there is a black clip that just slides on and off to hold the braided hose into the pump. pull the black clip and the hose and connector will pull out of the pump. you will see an "o" ring on the connector that is probably shot , mine was. Hope this helps
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#8 (permalink) Old 09-24-2009, 10:30 AM
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Thumbs up Sounds so easy....

Quote:
Originally Posted by jstetor53 View Post
k I don't have a camera here at work but let me see if I can explain my leak, it is very easy . If you look at the front corner of your washer bottle (inboard coroner) you will see the pump, its a vertical cylinder with a wire plug on top. At the bottom of the pump you will see a braided hose leading out of the pump, there is a black clip that just slides on and off to hold the braided hose into the pump. pull the black clip and the hose and connector will pull out of the pump. you will see an "o" ring on the connector that is probably shot , mine was. Hope this helps
Thanks Jstetor53, I'll take a look at it again with that in-mind
It does sound easy....
(famous last words !!)
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#9 (permalink) Old 09-25-2009, 06:39 AM
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Originally Posted by Max Korin View Post
Thanks Jstetor53, I'll take a look at it again with that in-mind
It does sound easy....
(famous last words !!)
LOL i hear ya on the famous last words but this one truly is a 10 min job....I used a small scre drive to pry the black clip off Good luck
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#10 (permalink) Old 04-18-2010, 03:56 PM
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Smile EASY pdf guide to screen washer motor repacement

Well I finally got the job done...
I'd been putting it off for ages but the screen washer motor died so I had no choice !!
It was easy - and to prove it, for anyone else who needs to replace either the washer motor or the rubber grommet between the motor and the plastic tank here is an EASY step by step guide with photos.

Hope that helps
Regards
Max
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File Type: pdf ScreenWasherMotorAndGrommet.pdf (1.27 MB, 1404 views)
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