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1984 Mercedes Benz 300dt Repair Question


Topics covered: Engine, Engine performance, Performance.
Mileage: No information provided.

Asked on July 2, 2009

1984 Mercedes Benz 300dt 5 cyl turbo diesel motor

Engine Performance problem
1984 Mercedes Benz 300dt 6 cyl Two Wheel Drive Automatic 300000 miles

When ac on at idle motor cuts off, oil presure reads at 20 instead of 30 when ac is not on and motor shakes quite a bit more. AC otherwise cools fine while driving.
Avatar Asked by jmongare

Answer

Replied on July 25, 2009

I believe your air-conditioning pump is going out causing a excessive drag on the engine, it will still work, just overloading the engine.

Tiny Answered by Dr Loot (expert)
2,178 answers provided