After an odyssey of almost 2 years, the half-timbered workshops try to fix the fahler now in this forum. Error description. My Volvo V50 1.6 diesel year 07.09.2006 with a mileage of 174000 km has a power loss and the cause cannot find a Volvo and no Bosch. I have invested a lot of money in the causes analysis without success. From car battery to fuel filter everything has been replaced and replaced. Alternator injection valve 3.Cylinder leaks PDF filter removed and checked. In various forums V50 owners with diesel engine also complain more frequently about sudden power drop, whose cause also remained a mystery to the workshops for a long time. In many cases, the matter was solved with an exchange of the diesel particulate filter, others report on the replacement of the exhaust return valve. Nothing helped. Note when reading out Bosch Service 16.02.2016 2550 rail pressure too low 6710 exhaust return too low 1517 charging pressure control to high 0101 engine control unit signal unplausible A030 steering wheel angle sensor 0100 engine control signal. I have tried to make sure that there is no problem.