Hi all im after some help if possible. Ive had my b6 over a year now and the key i had has always been tempremental, If I put a new a battery in the fob and resync it with the car all is fine for a week or two then the fob starts unbonding from the car it will resync several times then it stops, with a new battery this will be repeated. i assumed the key was eating batteries so ive had an autolocksmith out to cut and recode a key. He couldnt gain access to the part of the cars ecu that controls the remote slots as it was coming up in German instead of English! Ive checked the wiring between the doors and pillars they are fine. How do I inspect the convenience unit etc is there anything else I can check.