You would think that there should be some sort of solenoid to raise the idle speed when the engine is cold but there isn't. I had a Diesel Datsun pick-up and even it had a throttle adjustment knob to raise the idle when it was cold. I don't know why MB didn't think that there should be such a manual adjuster on the 300D. It's a bit of a pain. I have to drive the car with both feet until it warms up. I'm seriously thinking about installing a manual throttle cable just like the 240D has.

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012