Ichanged the battery in our 2004 Cabriolet and posted in September of 2009. (Title: Changing the battery in an A4 Cab, 2004). I used a different tool and purchased through a Volkswagen dealer to save money. It's not an easy battery change, but not too difficult if you have proper tools, strong arms and a memory keeper device.
2010Audi a4 b8, Fog lights stay on when car is off. I tried to turn the fog lights off by starting the engine and turning the light switch, but the fog lights stayed on. I went for a drive, 5 minutes into the drive, the horn turned on without me Youmay need to remove the air filter housing, a plastic engine cover or parts of the cowl to find the battery in your A4. See exactly where the battery is located in your 2009 Audi A4. Replacing the battery in your A4 involves removing the terminals. When you reconnect the terminals, your radio presets are likely to be cleared out. In some A4s