Question about 1985 Mercedes-Benz 300
Sounds like a cylinder head problem. If the coolant is boiling over into the bottle, but not leaking anywhere, that the engine is using its own pressure to move the coolant. There could be a cracked valve guide or just a blown cyl head gasket. Have a mechanic/or friend test the cylinder pressures with a gauge and this should tell your where the problem is and what the next step should be.
Posted on Aug 01, 2008
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Posted on Jan 02, 2017
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