The W210 chassis is cute about that; it throws an error in the cluster (instead of the odometer) that the parking brake is on and chirps at you, then if your speed goes above 10mph or so (maybe 15mph) it will change the illumination color of the message area from amber to RED and really squawk. It sort of resolves the issue :)
-j. > Also popular is leaving E-brake on then drive, which causes lots of > parts to be replaced, don't ask my wife about this...