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

MODEL 251 

Fig 1: Identifying Steering Wheel Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	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
	Risk of explosion  caused by escaping oxyhydrogen gas. Risk of injury  caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte (contains diluted sulfuric acid) or metal spatter due to short circuit. Risk of burn injuries  caused by short circuit. Risk of poisoning  caused by swallowing battery electrolyte (contains diluted sulfuric acid) or absorption of lead over the skin or orifices	No fire, sparks, open flames or smoking. Wear acid-resistant gloves and clothing and safety glasses with side guards. Do not place any conductive objects on the battery and avoid any short circuit from battery positive to ground. Only fill liquid battery electrolyte (diluted sulfuric acid) into suitable and appropriately marked containers.	AS54.10-Z-0001-01A
1	Move steering wheel (1) to horizontal position	Front wheels in straight-ahead position.
2	Disconnect battery ground cable		AR54.10-P-0003RT
3	Remove driver airbag unit		AR91.60-P-0660RT
4	Separate electrical connector (5)
5	Detach wiring harness (3) from the bracket (2)
6	Remove countersunk screw (4); counterhold steering wheel (1) when doing so	Replace countersunk screw.
			*BA46.10-P-1001-02H
7	Remove steering wheel (1), in the process guide the wiring harness (3) through the opening in the steering wheel (1)	Assign the cutouts of the serrations in the steering wheel to the markings on the steering shaft (arrows).
8	Clock spring contact for damage	When the steering wheel (1) is detached the clock spring contact must not be twisted otherwise it will be damaged. Perform a visual inspection and install new clock spring contact if necessary; see: ↓
		Remove/install clock spring contact	AR46.10-P-0200RT
9	Install in the reverse order
10	Conduct a road test	Tests during the road test: Turn signal reset  If the steering wheel (1) is offset by more than one tooth, perfect turn signal indicator reset is no longer guaranteed. Airbag indicator lamp  The SRS indicator lamp must not light up on full steering lock in both directions. Position of steering wheel (1)  If the steering wheel (1) is at a slant, adjust it by max. one tooth.

STEERING WHEEL

Number	Designation		Model 251
BA46.10-P-1001-02H	Bolts, steering wheel to steering shaft	Nm	80