Cayenne S (9PA) V8-4.5L (2003)
a. Remove tyre sealant -1- if it is present.
b. Unscrew the two fastening nuts -2-.
c. Undo fastening screw -3-.
3. Disconnecting electrical plug connection and removing subwoofer:
a. Take the plug connection out of the retaining bracket on the subwoofer and disconnect the plug connection.
b. Lift subwoofer up and out.
4. Removing battery case cover:
a. -A- Unscrew the four fastening nuts.
b. -B- Unclip the four fastening clips using a screwdriver.
c. Remove the battery case cover by pulling it up.
d. Check vent hose.