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Old 09-01-2009, 07:51 AM   #1 (permalink)
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Water not draining

I have a 2004 E500 and I noticted water now builds up in the area where the wiper arms are located. I removed wiper arms and tried to remove the cover by removing the plastic screws, but they only turned.
How can I remove this plastic cover? Any help would be appreciated.
Thank you
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Old 09-01-2009, 08:49 AM   #2 (permalink)
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You should actually get to the drain pipe bottom part to open the drain pipes. There is a bulletin describing the issue.

If you want to remove the cover, find the DIY guide on changing the heat exchanger shutoff valve describing this task too.
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Old 09-01-2009, 09:06 AM   #3 (permalink)
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Diesel Benz,

Thank you

Would you know where I can find the bulletin and DIY guide for this item?

thanks

Last edited by ehil500; 09-01-2009 at 09:12 AM. Reason: reply to answer
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Old 09-01-2009, 09:18 AM   #4 (permalink)
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Quote:
Originally Posted by ehil500 View Post

I removed wiper arms and tried to remove the cover by removing the plastic screws, but they only turned.
How can I remove this plastic cover? Any help would be appreciated.
Thank you
I believe that these are not screws, but removable expanding clips (item 5?) Pull them out with pliers to detach the 'water collector'. But it must be easier to clear the blockage as DB advises.
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Water not draining-e500-wiper-1.jpg   Water not draining-e500-wiper-2.jpg  
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Old 09-01-2009, 09:21 AM   #5 (permalink)
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MBUSA released Service Campaign 2007010002 JAN07 addressing water drains in front wheel housings not draining properly for the 211 MY03-06 and 219 (CLS) MY06. Service Campaigns do not expire therefore they are covered at no cost even out of warranty.

Particular to your 04 e500 (211.070) if you are within VIN range A008400–A725352 you are eligible for repair. Confirm by having your dealer check VMI (vehicle master inquiry).

Here is the link DB suggested: DIY: Installing a new Changeover/Heater Control Valve - MBWorld.org Forums
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Old 09-01-2009, 09:31 AM   #6 (permalink)
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Everybody - thanks again....
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Old 09-04-2009, 12:04 AM   #7 (permalink)
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I had a similar problem once. I was able to reach the rubber hose just below the windscreen limits in the engine compartment. All I did was squeeze & release the hose repeatedly to get the water moving back and forth and the 'blockage' cleared up. It turned out to be just some dirt in the hose. But I didn't have to remove the wipers, etc. I flushed it with some clean water and I've had no problems since.
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Old 09-04-2009, 06:37 AM   #8 (permalink)
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Windscreen?

Quote:
Originally Posted by Bimbis View Post
I had a similar problem once. I was able to reach the rubber hose just below the windscreen limits in the engine compartment. All I did was squeeze & release the hose repeatedly to get the water moving back and forth and the 'blockage' cleared up. It turned out to be just some dirt in the hose. But I didn't have to remove the wipers, etc. I flushed it with some clean water and I've had no problems since.
Bimbis,

Sounds interesting and easy possible opition. But I am not familiar with "the windscreen". Is this hose on the side of the firewall?

thanks.
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Old 09-04-2009, 09:48 AM   #9 (permalink)
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Quote:
Originally Posted by ehil500 View Post
Bimbis,

But I am not familiar with "the windscreen".
As you have not completed your location/vehicle details with the UserCP ^^^^ we do not know whether to write US or UK English. Over this side of the pond the windshield is known as a windscreen, the hood is called a bonnet, the fender is called a wing, and the trunk is called a boot.

Hope that helps
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Old 09-04-2009, 11:03 AM   #10 (permalink)
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Quote:
Originally Posted by ehil500 View Post
Bimbis,

Sounds interesting and easy possible opition. But I am not familiar with "the windscreen". Is this hose on the side of the firewall?

thanks.
I've attached 2 pics here taken from my (not too clean) car.
Both show the same area in the engine bay but the 2nd is a close up.
I was standing beside the car on the passenger side (left hand drive) looking into the engine bay.
The hose is actually in the center of the pics. Not visible in the first pic which I attached just to give an idea of the general area.
You can however see it in the second pic in the center of the pic circled by the yellow line and looking like a black tube. It can be squeezed gently to move the water back and forth until the dirt is free. The exit is behind the front wheel in the wheel arch.

Hope this helps
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Water not draining-image264.jpg   Water not draining-image266.jpg  
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