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Old 01-27-2001, 05:07 PM
Posts: n/a
How firm the shifts are is controlled by the engine vacuum via some kind of vacuum modulator. There are a number of vacuum "switches" in the system as well.

I recently had a very similar problem on my '83 240D (which has a fairly new transmission), and it turned out to be a lack of vacuum to the transmission caused by a faulty vacuum switch .

By the way, I have first hand experience of 3 different Mercedes transmissions lasting between 180k and 205k miles before requiring replacement. The 205k one was my 240D above, so hopefully your's has a long way to go.

I would strongly advise you find yourself a knowledgeable independent [not the main dealer] Mercedes mechanic and get the car properly serviced on a regular basis. Over the long haul it could save you a lot of time and money.
dominic godfrey
Morgan Hill, California
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