54 37 190 Removing and installing/replacing hydraulic cylinder for left roof shell
WARNING: This page is about a different car, the 2013 BMW Z4, 2012 BMW Z4, 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary work
- Remove LUGGAGE COMPARTMENT FLOOR TRIM PANEL .
- Partially open the roof.
- Remove roofliner for roof shell at rear .
IMPORTANT:
Hydraulic fluid may emerge from the disconnected lines and the open connections on the hydraulic cylinder. Protect components and work area with suitable materials (e.g. cloths
IMPORTANT:
Soft top compartment lid tilts shut when system is depressurized and must be supported with suitable auxiliary equipment.
NOTE:
Hydraulic system must be at zero pressure. Open screw on hydraulic unit 1.5 turns.
IMPORTANT:
Never lift off ball socket with engaged clamp. Replaced overelongated clamps. Before installation, grease ball socket if necessary.
Installation note: Pack grease into two opposite positions in socket. The grease spreads after installation on the ball pin all round in the ball socket.
Dismantling/installing ball sockets:
- Push on clamp in direction of groove with screwdriver
- Lift off ball socket from ball pin
- Slide clamp back
- Fit ball socket on ball stud and snap into place with force
Removing hydraulic cylinder:
- Slide retaining clips (1) upwards.
- Detach ball sockets at sides.
- Feed out hydraulic cylinder.
Replacement only: Disconnect hydraulic lines from cylinder.
IMPORTANT:
Protect separation points (lines and cylinder) against dripping fluid, e.g. with a cleaning cloth. Observe hose markings.
Detach cable strap. Open retainer (1) at bottom/top on cylinder with screwdriver. Detach hydraulic lines (2).
Right side only: Unlock plug connection for hall effect sensor and disconnect.
Installation note: Carry out function check. Check fluid level.