when at a stand still and the accelerator is engaged the RPMs rev, yet the car is sluggish and resistant to respond. Please help, there are no check lights in the cluster or any unusual noises that are apparent.

 

i have a 96 s320 and it does the same thing on mine by turning it off and restarting it it will drive normal but who knows maybe 30 miles maybe 10 minute but restarting it seems to reset something
good luck

thanks

 

it sounds like you have a plug wire or two going bad. they wont always set a engine light at first. if your going to replace 1 wire you might as well do them all as well as spark plugs. remember those ones in the rear are a real pain in the ***. oh and mb actually makes a tool for this