How long since you've
changed or at least checked your evaporative emissions control canister, and related hardware. On some other models and brands, if the canister is full of liquid fuel, it will produce such behavior, but I don't know any models of Mercedes as new as yours first hand.
On the other hand, are you sure it's not just the AC compressor cycling on and off?
Last edited by Fimum Fit; 05-13-2003 at 10:42 AM.