Ml500 issues




Looking at the photo you supplied there is a sharp line of blue just above the hose.
If it leaks there under pressure it will blow back in the slipstream and cover the hose as shown.
If it were mine I wouldn't be driving it until I'd sorted it as an engine rebuild or blown head gasket/s isn't something I would enjoy.
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I would start from finding exact place or just replace the tube and be done with it.
P.S. im not a mechanic just trying to help.
And test above will tell if cup is doing the work or not.


