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Coolant leak - bad reservoir?

 
Old 07-12-2019, 12:25 PM
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Coolant leak - bad reservoir?

I have a slow coolant leak as evidenced by spots on my garage floor. It may be coming from around the tank but its hard to verify. Is the tank or nearby hose or connection a common point of failure?
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Old 07-12-2019, 12:57 PM
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Here are some pics. Clearly there is evidence of coolant around the tank, but it is all dried up.





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Old 07-12-2019, 02:30 PM
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Originally Posted by Levijean View Post
I have a slow coolant leak as evidenced by spots on my garage floor. It may be coming from around the tank but its hard to verify. Is the tank or nearby hose or connection a common point of failure?
My E63s has been running perfect except one hiccup with the coolant leak. I had my reservoir and pipes replaced and it was not covered under warranty which really sucks.

Bring it back to Mercedes to get it checked.
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Old 07-12-2019, 07:18 PM
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Last year I rested my arm on that hose going to the reservoir by accident and it snapped in half lol.
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Old 07-12-2019, 09:53 PM
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I had a bad reservoir on my old ML63
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Old 07-12-2019, 11:45 PM
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It’s a common problem. Mine was replaced under warranty.
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Old 07-13-2019, 08:08 AM
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I had to do the main radiator hose, popped off while driving and all coolant drained out.
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Old 07-14-2019, 11:55 AM
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Why is your coolant green BTW? Shouldn't it be blue?
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