Today we got a newer A4 2.0 with a dead battery, seems very normal for the cold weather and age of the battery to be dead but after our normal charging test we found the reason it was dead was due to the engine coolant fans running even after car shut-off. The cars on-board computers were turning on the fans at night and draining the battery. After replacement of the water temp sensor the car was perfect… another happy customer on their way.
