I left my car in the garage for a week whilst I was away recently and the battery was dead, its a 2 month old Bosch silver battery. The car is a 1.9tdi PD130. I checked with a mutliemetre and pulled out most fuses to test current flow, tried the obvious ones such as cig ligher, lights, radio etc and it wasnt showing a thing. Then I tried the engine timing fuses and both registered a reading. The ignition was off. Is this normal? As soon as I put the ignition on, the reading dropped to nothing, on both fuses (37 and 43). When I left the car in the garage I never bothered to lock it. I have a habit of doing this and the battery and an older battery has died on me after about 3 or 4 days whilst it was below freezing, the car was unlocked then too. So, does the A3 8l use more battery when its unlocked?