2010 ML 350 Bluetec was a big disappointment for us.At 95,000 km we had to replace a fuel injector and timing chain ($3,500). Then, the vehicle worked well up until 199,000 km when it needed LH and RH air intakes ($4,000) and rear coil springs as they were both broken ($1,000). Shortly after this costly repair, vehicle began to burn oil, resulting in DPF clogged ($2,000). Then bluetec nozzle got clogged ($1,100). At 231,000 km engine was burning 2.5 liters of oil every 1,500 Km. This is way too early for a Diesel engine. Comfort was below our previous vehicle, a 2008 Buick Enclave, which also proved to have a much better reliability. All mechanics told me after I bought the ML 350 that those vehicles are full of technical problems. Parts and labor are very expensive. Be very careful with ML 350 Bluetec with high mileage. I do not recommend them.