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Home >> BMW >> 2015 >> Z4 sDrive28i, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 396 (Slide/Tilt Roof - Repair) >> 5437 Folding Roof >> 54 37 225 Removing and installing/replacing right Convertible top compartment lid hydraulic cylinder

54 37 225 Removing and installing/replacing right Convertible top compartment lid hydraulic cylinder

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 tasks 

CAUTION: 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: Convertible top compartment lid tilts closed when system is depressurized and must be supported with suitable apparatus.
Fig 1: Identifying Convertible Top Compartment Lid
G06912219Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Hydraulic system must be at zero pressure.
Open screw on hydraulic unit 1.5 turns.
Fig 2: Opening Screw On Hydraulic Unit
G06912233Courtesy of BMW OF NORTH AMERICA, INC.
  1. Unlock retaining lug
  2. Twist bearing pin downwards
Fig 3: Twisting Bearing Pin
G06912325Courtesy of BMW OF NORTH AMERICA, INC.

Remove bearing pin (1).

Fig 4: Removing Bearing Pin
G06912326Courtesy of BMW OF NORTH AMERICA, INC.

Remove retaining clip (1) with a screwdriver.

Drive out pin (2) at side.

Fig 5: Removing Pin
G06912327Courtesy of BMW OF NORTH AMERICA, INC.

Feed out hydraulic cylinder (1).

Unfasten plug connection (2) and disconnect.

Right side only: 

Unlock plug connection (3) for Hall sensor and disconnect.

Fig 6: Removing Hydraulic Cylinder
G06912328Courtesy of BMW OF NORTH AMERICA, INC.

Replacement only: 

IMPORTANT: Protect joints (lines and cylinder) against dripping fluid, e.g. with a cleaning cloth.

Detach cable tie.

Installation: 

Replace faulty cable ties.

Slide open retaining rings (1) with screwdriver.

Detach hydraulic lines (2).

Fig 7: Identifying Retaining Rings And Hydraulic Lines
G06181325Courtesy of BMW OF NORTH AMERICA, INC.

Installation: