Removing
1. Put emergency call systems into maintenance mode:
- Turn on the ignition.
- Turn on your phone.
- Dial *#4610# on the handset. Confirm with «OK» the message that appears «Kein Telematikdienst» («No teleinformation service»).
- Switch off the ignition.
- Turn off your phone.
2. Remove the lower trunk lid.
3. Turn out bolts of fastening of an eye over a back suspension bracket and remove a cover of the control block.
4. Loosen the 2 fixing screws and remove the cover for the control units «TELEAID».
5. Disconnect the battery connector and remove the battery.
Installation
1. Insert a new battery. Carefully connect and fix the connector.
2. Replace the control box cover and fasten it with screws.
3. Turn off service mode:
- Turn on the ignition.
- Confirm with «OK» message «Service-Mode verlassen» («Leave service mode»).
- Confirm with «OK» the message that appears «Kein Telematikdienst» («No teleinformation service»).
- Switch off the ignition.
4. Attach the control box cover.
5. Install the lower trunk lid.