54 37 260 Replacing rear-end module Hall sensor on partition wall

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2013 BMW 328i, 2012 BMW 328i, 2011 BMW 328i, 2010 BMW 335i, and 2010 BMW 328i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Open convertible top compartment lid.

Installation:

Microencapsulated screws (Loctite) must be replaced and may not be reused
Screw connection must be completed within 20 minutes (start of curing)
Microencapsulated screws must not be retightened
Clean thread of nut beforehand in event of repeated use

Unfasten plug connection (1) and disconnect.

Release screw (2).

Unclip wiring harness.

Feed out Hall sensors.

Installation:

Hall sensor for convertible top cover must be readjusted.

Fig 1: Identifying Plug Connection And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

If there is no signal from the Hall sensors, perform the following adjustments:

Adjusting Hall sensor for roof module:

Loosely tighten screws (1) on holder.

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

Stow roof module.

The optimum position of the holders is determined by the retraction of the centering pins into the fastener.

Tighten down screws (1).

Fig 2: Identifying Roof Module Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Adjusting Hall sensor for convertible top compartment lid:

Insert screw (2) only loosely.

Pull back Hall sensor (1).

IMPORTANT: Risk of damage! Switch plate must not rest on Hall sensor.

Close convertible top compartment lid carefully.

Fig 3: Pulling Back Hall Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

Adjust Hall sensor (1) in relation to switch plate.

A) 0.4 mm

Tighten screw (2).

Check function of Hall sensor.

If necessary, reduce gap between Hall sensor and switch plate.

Fig 4: Identifying Gap Between Hall Sensor And Switch Plate

Courtesy of BMW OF NORTH AMERICA, INC.