E-Class (W211) 2003-2009

Brakes and Wiper fluid

Old Nov 18, 2013 | 10:48 PM
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2010 GLK
Brakes and Wiper fluid

W211 E321 Wagon lost all its brake fluid and I also has a wiper fluid low light.

I believe a rodent that has chewed through a pipe or two. The wiper fluid reservoir cap was about 1/4 chewed and I could see little tracks on the top of the engine. I had to have it towed because the fluid had all leaked out after driving it to work. Thanks goodness it got me there w/o an incident. No leak in the driveway and the light didn't go on until I got in to come home from work. Puddle was under the drivers side front.

Closer examination revealed that the fluid looked to be leaking near the center of the car, below the cowl at the base of the windshield the running down to the riverside below the reservoir. There is a tube that runs front the bottom of the reservoir to the ABS block. I believe it is that tube and I'll bet the rascal chewed through the wiper fluid tube while he was in there.

I was going to fix it myself but was concerned that since it was brakes I better let somebody that is certified and insured Even though it is at the dealer I would still like to know what that pipe looks like under the cowl.

If anybody has a diagram of the brake reservoir pipe that runs under the cowl it would be appreciated.

I looked through the parts websites I normally use but none of them called it out.
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Old Nov 18, 2013 | 11:38 PM
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jroach's Avatar
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2010 GLK
found diagram

Found it:

circuit

http://bayhas.com/mercedes/w211/cont...temdiagram.htm

parts diagram

http://www.mbpartsworld.com/showAsse...rimLevel=20661

Looks like it is called the caution line. Now I wish I would have repaired it myself
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