replace fan clutch.it sounds like your prob.have some one else raise rpm's while you stand beside engine with hood up.if fan clutch is good you will feel,and hear a dramatic rise in amount of air being moved by fan as revs rise.

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David S Poole
European Performance
Dallas, TX
4696880422

"Fortune favors the prepared mind"
1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
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