For some types of repairs to the 4th generation Audi A4 (e.g. airbag disconnection), the battery pack is required to be removed correctly. The procedure is as follows: Turn off the trunk, lift the trunk mat, and remove the unit cover.Loosin the nut and remove the wire from the battery pack.
- Turn the ignition off.
- Ran the trunk of the trunk.
- Unwind the nut and remove the cover of the PSC (the car with a station wagon) is also required to remove the cable.)
- Loosin the nut and remove the wire from the battery pack.