overrevving

Ive been meaning to make a thread on this since I got the car. - the same applied to my brothers W208 320 When I start up my car from cold I normally have to wait a good 1 or 2 mins for the Revs to reduce from 1500rpm to under 1000rpm. and if I move off before this braking is alot harder and...

My wifes 1995 e280 seems to be noisy on the motorway. At 4000 rpm it travels at 90 mph, above 3500 rpm the engine starts to make it self known. A bit of a let down to be honest because the 300e (1990) I used to drive was as quite as a mouse for example at 100 mph + the car used to seem fast...