52 14... Removing and installing covers on seat rails

Front cover: 

Move front seat as far back as possible.

1. Press retaining lugs of cover with screwdriver downwards and carefully lift off sideways from seat rail
2. Simultaneously detach cover
   Fig 1: Pressing Retaining Lugs Of Cover With Screwdriver Downwards And Seat Rail

   Courtesy of BMW OF NORTH AMERICA, INC.

Overview of front cover.

Installation note: 

Retaining lugs must not be damaged.

Rear cover: 

Move front seat as far forward as possible.

1. Press retaining lugs of cover with screwdriver downwards and carefully lift off sideways from seat rail
2. Press locking tab
3. Simultaneously detach cover
   Fig 3: Pressing Retaining Lugs Of Cover With Screwdriver Downwards

   Courtesy of BMW OF NORTH AMERICA, INC.

Overview of rear cover.

Installation note: 

Retaining lugs must not be damaged.