Remove/install steering coupling

AR46.10-P-8000TX

Remove/install steering coupling

17.1.11

 

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.



*129589012100

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.

 Installation: 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).

 Installation: 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.

 Installation: 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.

 Installation: 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

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