Windshield Washer Fluid Leak
 

Everything was fine until a few days after a Service A was performed. I noticed a puddle in my garage that was a soapy substance. This week the top off WW fluid warning came on. Any feedback on the root cause?

I havent had this issue with my current car, but from my past experiance its either a cracked washer fluid tank or the leak occurs from either the window washer or headlight washer pump...

I had this issue on my car, and the root cause was that the nozzles for the headlamp washers were missing, and thus leaking through there.

I'm not sure if this is my problem but what I do know is that the leak is dripping behind the front passenger wheel. I can see the drips coming the from the front of the rocker.

Did this ever get resolved? I have pictures of where it's leaking, and I swear it's just an overflow. My check washer fluid came on, I poured about half a container in and this started.

You can see the little drop starting on the black piece in front of the reservoir, towards the body panel.

https://mbworld.org/forums/members/s...21154-leak.jpg

God I love forums!!!

Did some more searching and found this thread - https://mbworld.org/forums/s-class-w...vior-leak.html.

It made me double check the source of the leak, and sure enough it was slightly above what I circled and the vacu tite hose worked like a champ.

Sorry for the super delayed response. The dealer ended up replacing the entire reservoir assembly under factory warranty. No more leaks.

On my w211 e350, the washer fluid tank has a design flaw from mercedes. The plastic bottle is actually touching the heater, the heat will cause the plastic to melt and might also damage the pump. I just had my tank replaced, but the pump was also damaged and leaking.