It would help if you post a pic.

Generally though the aluminum "steelie look" wheels found on the 240d are thicker at the rim and the wheelcovers designed to fit real steel wheels won't go in because they are too tight.

Did you take a magnet to it to verify its aluminum?

If you find its aluminum you will probably need to find a set of wheelcovers designed for the aluminum "steelie look" wheels. The shape of the center section of the wheel is also critical as they may not fit on it if the center sticks out too much.

I doubt that the wheelcovers, for example, would fit on a bundt wheel because of the center.

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.