Thread: '83 240D Oil filter housing gasket failure!
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Old 03-31-2025, 02:42 PM
Sugar Bear Sugar Bear is offline
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Join Date: Sep 2001
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Did the oil pressure gauge drop down from "3" bar at idle on a HOT engine? Keep an eye for this as it could be a pressure relief valve not opening. IIRC, there is one on the oil pump and one in the oil filter housing. The gauge usually pegs at 3 cold and drops off to 2-1 at full hot idle. Upon acceleration even when hot it should immediately re-peg at 3.
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