After above exchange with the local big MB dealer there are considerable problems with the vehicle. 1. Engine compartment was completely oiled, different sensors have registered, so that the yellow motor lamp occasionally lighted up. 2. The V-belt was damaged. 3. The car goes into the emergency run after a longer drive, but can be converted up after manual switching and thus out of the emergency run. 4. The ABS is switched off at ever shorter intervals and a warning message is shown. Jet zt the workshop liked to install new oil noise absorbers and new wheel sensors, of course at my expense. Now my question: Was there possibly an apprentice ordered to the BKV change, which has repaired some during the removal of broken? Do possibly relevant parts of the described problem have to be expanded with to come to the BKV? Context BKV ABS News? R 300 Diesel Bj 2014 Previously the car had not made any problems.