Remove/install steering coupling - AR46.10-P-8000TX

MODEL 219 

Fig 1: Identifying Steering Coupling Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1	Extend or pull out adjustable steering column fully	Needed for separating the steering coupling (25).
2	Deactivate easy entry/exit function	Vehicles with memory package (driver seat, steering column, mirrors) code 275
		Otherwise the driver seat and steering wheel move to a different position, e.g. when the driver door is opened/closed. The upper frame may be damaged when the holding device is installed.
		Disabling takes place via the buttons on the steering wheel in the "Comfort" menu of the multifunction display, see owner's manual.
3	Turn steering wheel to central position (front wheels in straight ahead position) and secure with the retaining device	On a disengaged steering coupling (25) the steering wheel should not be turned because the spiral contact coil will be destroyed.
			Fig 2
4.1	Remove bottom engine compartment paneling	Vehicles with gasoline engine	AR61.20-P-1105TX
4.2	Remove bottom sections of soundproofing	Vehicles with diesel engine	AR94.30-P-5300TX
5	Detach steering coupling (25) from lower steering shaft (80a) by removing bolt (25a)		*BA46.10-P-1001-01E
6	Pull the lower steering shaft (80a) upward to extract it from the steering coupling (25.)	Do not use force (hammer, strong lever action) since the lower steering shaft is sensitive to lateral impacts.
		Watch the tab on the steering coupling and the groove in the lower steering shaft while sliding the lower steering shaft all the way into the steering coupling (arrows).
7	Remove bolt (25b) from steering coupling (25).	Replace self-locking nut.
			*BA46.10-P-1002-01E
8	Carefully pull steering coupling (25) out of control valve of rack-and-pinion steering.	Do not use force (hammer blows, severe leverage) as a predetermined fracture point is located on the control valve. If necessary, expand clamping slot slightly with screwdriver.
		Turn rack-and-pinion steering to center position and install steering coupling, brake fluid reservoir	AR46.20-P-0600-01TX
9	Pull locking plate (25f) off the steering coupling (25), in doing so lift up the lug on the locking plate using a suitable tool.	The locking plate (25f) is not available as a replacement part.
		Insert a new self-locking nut in the existing locking plate (25f). Push on locking plate (25f) until the lug on the locking plate (25f) engages in the steering coupling (25).
10	Install in the reverse order

STEERING SHAFT

Number	Designation			Model 219
BA46.10-P-1001-01E	Bolt, steering coupling to steering shaft	Stage 1	Nm	30
		Stage 2	∠ °	-
BA46.10-P-1002-01E	Safety screw and steering coupling locknut to rack-and-pinion steering		Nm	24

Fig 2: Identifying Holding Device (129 589 01 21 00)

Courtesy of MERCEDES-BENZ USA