Hi,
I have had a July 2004 ML270CDI auto Lux for nearly two and a half years and it is faultless, I have towed my last 3 caravans with it, the first was a single axle at 1400kg and the others were twin axles, one at 1700kg and this one at 1750kg.
Overall towing it does 20 - 22mpg and solo on a...