54 37 110 Removing and installing/replacing fastener for roof shell in middle

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Necessary preliminary tasks:

Remove roofliner in middle

Installation:

Microencapsulated screws (Loctite) must be replaced and may not be reused
Screw connection must be completed within 20 mins. (start of curing)
Microencapsulated screws must not be retightened
Thread of nut must be cleaned beforehand in event of repeated use

Move convertible top into service position .

Move convertible top so that angle of hinges is not ≤90°.

IMPORTANT: Risk of damage! Pressure in hydraulic system drops and convertible top loses its position.

Support rear roof shell to convertible top cover with suitable auxiliary material.

Auxiliary material must lie over wide area and if possible over entire length.

Rear roof shell is supported by auxiliary material on convertible top cover.

Fig 1: Moving Convertible Top Into Service Position

Courtesy of BMW OF NORTH AMERICA, INC.

Roof shells block each other.

NOTE: Before removing, mark position of screws to ensure correct alignment when installing.

Release screws (1).

Tightening torque: see 9AZ in 54 37 POWER CONVERTIBLE TOP .

Fig 2: Identifying Screws

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The scope of work for removing and installing the roof shell fastener ends here.

Check gap dimensions and if necessary adjust. See BODY GAP DIMENSIONS .

Screw on fastener loosely.

Fastener should still be able to be slid in order to center itself.

Close convertible top.

Fastener centers itself.

Mark screw position and open convertible top.

Slacken screws and slide center fastener 0.5 mm in opposite direction to direction of travel.

The required pretension is thus obtained.

Tighten down screws (1).

Tightening torque: see 9AZ in 54 37 POWER CONVERTIBLE TOP .

Fig 3: Identifying Gap Dimensions

Courtesy of BMW OF NORTH AMERICA, INC.

Check gap dimensions and if necessary adjust. See BODY GAP DIMENSIONS .