Remove/Install Steering Coupling - AR46.10-P-8000RG

Model 190 

Courtesy of MERCEDES-BENZ USA

	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
	Risk of injury.  Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.	AS00.00-Z-0017-01A
		Deburr repair panels.
Notice	Notes on working in engine compartment		AH60.00-P-0042-01RG
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
	Remove/install
1	Deactivate easy entry and exit feature for driver's seat and steering wheel.	The easy entry and exit feature for driver's seat and steering wheel must be deactivated. When the holding device is subsequently attached to the steering wheel, damage can otherwise occur when the position of the driver seat and steering wheel changes.
		Only on vehicles with CODE P64 (Memory package).
2	Switch off ignition, remove transmitter key if necessary and place transmitter key outside of KEYLESS-GO transmission range.
3	Bring steering wheel into center position and fasten with holding device.	Do not twist steering wheel after removal of steering coupling (3). Otherwise, it destroys the clock spring contact in the steering column tube module.
		Retainer device	Fig 1
4	Lift vehicle with vehicle lift.		AR00.60-P-1000RG
5	Remove lower engine compartment lining.	Model 190.381	AR61.20-P-1105RGB
		Model 190 (except 190.381)	AR61.20-P-1105RG
		Remove only the center engine compartment paneling.
		Only install the center engine compartment paneling after a test run has been performed.
6	Remove bolt (2).	The steering coupling (3) remains on the rack-and-pinion steering (1)
		Safety screw and steering coupling locknut to rack-and-pinion steering	*BA46.10-P-1002-01E
7	Lower vehicle and open hood.
Notice	Notes on working in engine compartment		AH60.00-P-0042-01RG
8	Remove left bulkhead (4).
9	Unhook switchover valve (Y58/1) from holder.
10	Remove screw (5).	Bolt, steering coupling to steering shaft	*BA46.10-P-1001-01E
11	Remove screws (6) and the holder (7) of the steering coupling (3) from longitudinal member.	Ensure that holder (7) is seated correctly on longitudinal member and tighten screws (6) only slightly by hand initially.
		Only tighten the screws (6) to the specified torque when the screw (5) (steering coupling (3) to rack-and-pinion steering (1)) and the screw (2) (steering coupling (3) to lower steering shaft (8)) are tightened to the specified torque.
		Bolt, steering shaft bearing bracket to longitudinal member	*BA46.10-P-1009-01E
12	Detach steering coupling (3) from lower steering shaft (8) in direction of arrow.	Make sure that the seal bellows is seated correctly.
13	Release steering coupling (3) from rack-and-pinion steering (1) and remove steering coupling (3) toward rear and downward.	Do not use force such as hammer blows or excessive leverage. Damage to the steering coupling (3) and to the rack-and-pinion steering (1) can otherwise occur.
		First attach the steering coupling (3) at the correct installation position on the rack-and-pinion steering (1).
14	Install in the reverse order.

STEERING SHAFT

Number	Designation			Model 190
BA46.10-P-1001-01E	Bolt, steering coupling to steering shaft	Stage 1	Nm	30
		Stage 2	∠°	-

STEERING SHAFT

Number	Designation		Model 190
BA46.10-P-1002-01E	Safety screw and steering coupling locknut to rack-and-pinion steering	Nm	28

STEERING SHAFT

Number	Designation		Model 190
BA46.10-P-1009-01E	Bolt, steering shaft bearing bracket to longitudinal member	Nm	-

Fig 1: Identifying Retainer Device (129 589 01 21 00)

Courtesy of MERCEDES-BENZ USA