Remove/Install Steering Column Switch Module - AR54.25-P-2812S

Model 223 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Topical note	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Remove/install
1	Turn steering wheel to center position.	The front wheels must be in the straight-ahead position.
2	Move steering wheel all the way to the rear.
3	Remove steering wheel.		AR46.10-P-0100S
4	Unclip covers (1, 2, 3) far enough until electrical connector (4) is exposed.	Long wedge	Fig 1
5	Release and disconnect electrical connector (4).
6	Detach steering column tube module control unit (N80) from steering column tube (5).	When the steering column tube module control unit (N80) is correctly installed, the safety springs (6) at the steering column tube (5) lock.
		When installing a new steering column tube module control unit (N80), the transport protection (10) must be broken off after installation.
7	Remove locking clip (7) from electrical connector (8) with suitable tool.	The locking clip (7) is destroyed and must be replaced.
		Retaining clip for steering column tube module plug	*BR00.45-Z-1015-12A
8	Release and disconnect electrical connector (8).
9	Release guide (9) and remove with electrical connector (8).
10	Unclip instrument panel cover (3) from steering column tube module control unit (N80).	Long wedge	Fig 1
11	Remove steering column tube module control unit (N80).
12	Install in the reverse order.
13	Carry out commissioning of steering column tube module control unit (N80).	When replacing steering column tube module control unit (N80).
			AD00.00-P-2000-06FR

Fig 1: Identifying Long Wedge (115 589 03 59 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1015-12A	Retaining clip for steering column tube module plug	A 000 823 02 45