Removing Control Unit For Four-Wheel Drive (PTM)

→ Remove the ignition key and switch off load before disconnecting or removing load.

Fig 1: Identifying Control Unit Installation Position

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

1. Fold the backrests of the rear seats forward.
2. Lift the carpet lining up and remove it.
3. Unscrew fastening screws -1-  and loosen fastening nuts -2-  .
   Fig 2: Removing Fastening Screws

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
4. Turn the control unit holder around.
5. Screw off the two fastening nuts -3-  and remove the four-wheel drive control unit from the holder.
   Fig 3: Removing Fastening Nuts And Releasing Connector

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.
6. Release connector for the four-wheel drive control unit -a-  and pull it off.