37 14 511 Replacing front ride-height sensor

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESD protection).

After installation:

Check headlight adjustment, correct if necessary

NOTE:

Build date up to 03/04: Variant (A) - connection (1) points downwards
Build date from 03/04: Variant (B) - connection (2) points upwards

Fig 1: Identifying Front Ride-Height Sensor (Before And After 03/04 Manufactured)

Courtesy of BMW OF NORTH AMERICA, INC.

Build date up to 03/04:

IMPORTANT: If the front ride-height sensor has been installed twisted in relation to variant (A), e.g. due to wiring harness replacement, the following control units must be recoded.

Light module with headlight vertical aim control
Adaptive headlight

Necessary preliminary tasks:

Remove underbody protection
If necessary, remove right steering gear cover

Shown on build date up to 03/04:

Release nut (1) and disconnect control rack.

Installation:

Replace self-locking nut.

Tightening torque 8 N.m.

Release screws (2) and remove ride-height sensor from bracket.

Tightening torque 5 N.m.

Disconnect plug connection (3).

Fig 2: Removing Ride-Height Sensor From Bracket

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Build date up to 03/04: If necessary, tie back connecting cable for ride-height sensor.