Remove/install steering wheel - AR46.10-P-0100MCC

MODEL 451.3/4 

Fig 1: Identifying Steering Wheel Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/install
	Risk of injury  caused by performing testing or repair work on airbag or emergency tensioning retractor units.	Store airbag units with deployment side facing up; do not expose to temperatures greater than 100°C. When working on these units, disconnect the power supply.	AS91.00-Z-0001-01A
	Notes on performing repair, body work and welding on vehicles with airbags and ETR units		AH91.00-P-0002-01SM
	Legal requirements on handling and storing airbags and emergency tensioning retractor units		AH91.00-P-0004-01A
1	Set steering and turn signal switch to center position	If the steering and turn signal switch are not in the center position for removal/ installation of the steering wheel (2), the fanfare horns and airbag clock spring contact (A45) and the turn signal canceling cam may be damaged. Calibration of the steering angle sensor in the fanfare horns and airbag clock spring contact (A45) remains impossible.
2	Disconnect battery ground line		AR54.10-P-0003MCC
3	Remove lower steering column trim (1)		AR68.30-P-2000MCC
4	Detach clock spring contact and airbag connector (A45x1)
5	Undo bolt (3) from below on the steering wheel (2)	The steering wheel (2) may only be rotated using the tightened bolt (3), to avoid damaging the fanfare horns and airbag clock spring contact (A45). The bolt (3) remains on the steering wheel (2).
			*BA46.10-P-1001-02D
6	Remove steering wheel (2)	The steering wheel (2) may only be rotated using the tightened bolt (3), to avoid damaging the fanfare horns and airbag clock spring contact (A45). When removing the steering wheel (2) from the steering column, the fanfare horns and airbag clock spring contact (A45) is blocked against any inadvertent turning. Installation:  Mount steering wheel (2) so that the locking pins (arrows A) line up with the fixtures (arrows B) of the fanfare horns and airbag clock spring contact (A45). Ensure that the front wheels are in the straight-ahead position before installing the steering wheel (2).
7	Remove clock spring contact	Only when replacing the steering wheel (2).
		* not for USA	AR46.10-P-0200MCC
		* for USA only	AR46.10-P-0200MCU
8	Install in the reverse order

STEERING WHEEL

Number	Designation		Model 451.3/4
BA46.10-P-1001-02D	Bolts, steering wheel to steering shaft	Nm	27