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Pièces & Outils


Contribution d'origine par : Tom Loeber ,


I had the same problem with my 240D.  Took it to a mechanic who should know these cars and he said the engine was shot producing the blow-by.  Then I found a statement on the web that the vacuum pump would leak oil when it's diaphram or check valves were faulty.  Bought two repair kits for $35 (new diaphram and check valves) and rebuilt the pump in about two hours and that stopped the oil leaking into the air filter housing.  Be careful with those bolts as the allen head can become rounded all too easily which is why it took me two hours instead of one. Had the valves adjusted and the engine is fine.  Starting off on my second quarter million miles now :~)