I've seen many posts on clunking noises but none that address my problem. Every time I accelerate from a stop a rolling clunk is felt. It doesn't happen when downshifting or in any other gear. It feels like a huge barrel rolling in my trunk. It's a 4 speed 240D. Any thoughts?

have you checked the trunk?

then too you might have something smaller under your seat faking you out.

it really doesnt sound like other things, but have you checked the rubber donuts in the driveshaft?

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.