Removing Lock For 1/3-Split Folding Rear Backrest

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2018 Porsche Cayenne, 2017 Porsche Cayenne, 2016 Porsche Cayenne, 2015 Porsche Cayenne, and 2014 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

Remove seat trim panel on the right.
1. 1.1. Unscrew fastening screw -1- on seat trim panel -2- at the right.
  Press the control lever up to do this.
  
  Fig 1: Identifying Right Trim Panel On 1/3-Split Folding Rear Seat
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. 1.2. Carefully unclip the trim panel at the retaining lugs -3- on the seat.
3. 1.3. Carefully pull the trim panel up and remove it.
Remove locking mechanism for 1/3-split folding rear seat.

Fig 2: Removing Lock For 1/3-Split Folding Rear Seat
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
1. 2.1. Unscrew fastening screw -1- from the locking mechanism -2- .
2. 2.2. Carefully lever off the lock -2- using a suitable tool -3- and remove it from the joint -4- on the backrest frame.
Carefully lever off the joint -1- using a suitable tool -2- and remove it from the backrest frame -3- .

Fig 3: Removing Joint On Locking Mechanism For 1/3-Split Folding Rear Backrest
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Carefully unclip the locking lug -1- on the handle -2- of the locking mechanism using a suitable tool -3- and remove it from the lever -4- . Then pull off the handle.

Fig 4: Removing Handle For Locking Mechanism
Courtesy of PORSCHE CARS NORTH AMERICA, INC.