52 24... Emergency actuator for rear seat backrest

WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 328xi, 2012 BMW 328i, and 2011 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Release hook of backrest lock
Backrest

Fig 1: Identifying Backrest And Backrest Lock Release Hook

Courtesy of BMW OF NORTH AMERICA, INC.

Insert screwdriver for levering in snap-in hole of rear seat lock.

Press screwdriver to center of vehicle and in so doing press supporting point (1) of Bowden cable outwards

Fig 2: Identifying Bowden Cable Supporting Point

Courtesy of BMW OF NORTH AMERICA, INC.