52 26... Removing and installing/replacing gas-filled strut on left rear seat

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

Slide retaining clips (1) upwards.

Detach ball sockets at sides.

Fig 1: Identifying Gas-Filled Strut Retaining Clips

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Gas-filled strut (1) is under tension.

Lever ball socket with screwdriver on pin.

Fig 2: Removing Ball Socket Using Screwdriver

Courtesy of BMW OF NORTH AMERICA, INC.