61 31 233 Removing and installing/replacing engine electrical system for lane departure warning (M sports steering wheel)

Necessary preliminary tasks: 

• Remove AIRBAG UNIT

Release screws (1) on steering wheel.

Release screw (2) on rear side of steering wheel.

Remove design cover.

Fig 1: Identifying Steering Wheel Screws

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Disconnect plug connection (1).

Carefully unlock retaining clip (2) on latch mechanisms (3) with suitable tool (e. g. screwdriver with 3-mm blade).

Fig 2: Identifying Retaining Clip, Latch Mechanisms And Plug Connection

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Remove engine electrical system of Lane Departure Warning (1) from steering wheel (2) in direction of arrow.

Fig 3: Removing Engine Electrical System Of Lane Departure Warning From Steering Wheel

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Installation note: 

Retaining clip (2) and guides (1) on engine electrical system of Lane Departure Warning (3) must not be damaged or missing.

Fig 4: Identifying Retaining Clip And Guides On Engine Electrical System Of Lane Departure Warning

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Installation note: 

First press down retaining clip (1) in area (A) until it engages. Then press down in area (B) until it engages.

Make sure engine electrical system of Lane Departure Warning is correctly seated.

Make sure plug connection (2) is correctly locked.

Fig 5: Identifying Retaining Clip And Plug Connection

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Replacement: 

From version 03/2009 onwards, the engine electrical system must be adjusted.

For the adjustment, the resonance frequency stamped on the actuator is required. Note the resonance frequency of the new part.

The service module "Adjustment actuator Lane Departure Warning" can be found at:

• Body
• Camera-based driver support systems
• Adjustment of lane departure warning actuator