Hello, My car (V10tdi, 2005) unfortunately , like apparently some others also , problems with the comfort battery . -ZAB dark -climate temporarily not available etc. I checked the voltage on the battery , with running motor , . Almost 12 volts . I changed the battery meanwhile , but unfortunately the car still has the same problems as mentioned above . The voltage on the new battery is approx. 13.2-13.4 V . At the battery on the front side the voltage is approx. .14,5 V. According to the instructions here from the forum I did delete the battery-washer (case room cover 45° etc.) also did nothing. Would be great if someone could help me. mfg Rene