Nothing but trouble. We bought an new 04 reg. We have had the head gasket renewed (a known fault although the car was not recalled). We discovered it 100 miles from home with just 30000 miles on the clock after three years. We have had to have the shock absorbers renewed, window switch replaced, 3 new radios and now a new water pump. We were asked to pay £800 for an extended warrenty and made to feel like problem customers. It's a pity Mercedes doesn't have confidence in it themselves and offer a 7 year warranty like some other companies. It's a comfortable car with much going for it, apart from the list above!