51 23... Removing/installing ball sockets with clip

WARNING: Risk of injury! When installed, the gas pressurized shock absorber is under preload. Minimize preload as far as possible before removing.

IMPORTANT: Never lift off ball socket with engaged retainer.

Disassembly/assembly:

Push on retainer in direction of groove with screwdriver
Lift off ball socket from ball pin
Slide retainer back
Fit ball socket on ball stud and snap into place with force

Fig 1: Disassembling & Assembling Ball Sockets With Clip

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: Replace overstretched clips. Pack grease into two opposite positions in socket. The grease spreads after installation on the ball pin all round in the ball socket.