Having owned an E350 CDI Blue Efficiency Avantgarde for almost a year and a half, I have regretfully decided to get rid of what has turned out to be a money sink. To date we have spent over £6k on repairs, and I am appalled at the cost of parts and the difficulty of obtaining them. I am not convinced that the Mercedes diagnostic system is all that it is cracked up to be, and of course it is only as good as the operator. Sad, because we love the quietness and comfort of the car, but the price is just ridiculous. I think back to when I had a series III Landrover LWB Safari. I was forever underneath the thing, but at least I could repair it and my good lady had no difficulty falling asleep in it in spite of the 2,25litre diesel! Sadly, good examples fetch house prices (or nearly).