Remove/install rack-and-pinion steering

AR46.20-P-0600A

Remove/install rack-and-pinion steering

13.1.10

15.12.05

Set toe on front axle only after installing new parts

Step 29.1



Removing

Danger!

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.

AS00.00-Z-0010-01A

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

Danger!

Risk of injury to skin or eyes caused by hydraulic fluid spraying out under high pressure. Risk of poisoning caused by swallowing hydraulic fluid

Depressurize the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses.

AS00.00-Z-0013-01A

 Danger!

Risk of injury caused by fingers being pinched or crushed when removing, installing or aligning hoods, doors, trunk lids, liftgates or sliding roof

Keep body parts and limbs well clear of moving parts.

AS00.00-Z-0011-01A



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

1

Open engine hood

AR88.40-P-1000F

2.1

Extract fluid out of the power steering pump's fluid reservoir

Vehicles without level control



*210589007100

2.2

Detach feed line from reservoir

Vehicles with level control



*000589403700

3

Remove ignition key and allow steering wheel lock to engage

 When the steering coupling is detached, the steering wheel must not be twisted otherwise the fanfare horns and airbag clock spring contact (A45) will be destroyed.

4

Raise vehicle

5

Remove the front wheels



Remove/install wheels, rotate if necessary

AP40.10-P-4050Z

6.1

Remove engine compartment paneling

Vehicles with gasoline engine

AR61.20-P-1105AB

6.2

Remove bottom section of soundproofing

Vehicles with diesel engine

AR94.30-P-5300AB

7

Pry tie rods (10) off the steering knuckles

AR46.40-P-0200-02C

8.1

Detach shield from steering boots

Model 210.08/28

9

Remove high-pressure expansion hose (30i) and return line (30f)

 Seal off line connections with plugs.



*129589009100

10.1

Detach return line from steering gear, to do this loosen clamp

Vehicles with level control

11.1

Detach shield from steering coupling (25)

Engines 112, 119

AR46.10-P-0400-01B

12

Detach steering coupling (25) from control valve of rack-and-pinion steering carefully (predetermined fracture point on control valve)

 Do not use force (hammer blows, a lot of leverage), if necessary expand clamping groove slightly using a screwdriver.

13.1

Detach electrical connection (2) on PML solenoid valve (Y10)

Vehicles with speed-sensitive power steering, code 213a

14

Remove bolts (23g)

15

Remove bolts (23a) and remove rack-and-pinion steering (23) with retaining plate (1g)



Evaluating steering rack when repairing accident vehicles

AH46.20-P-9409-01A

16

Check rubber mount of rack-and-pinion mounting for damage and replace if necessary



Install

17

Install rack-and-pinion steering with retaining plate (1g) and fasten onto front axle carrier (1) with bolts (23a, 23g)

 Installation: Replace self-locking nuts.

 Rack-and-pinion steering

*BA46.20-P-1007-01A

 Retaining plate

*BA46.20-P-1008-01A

18

Turn rack-and-pinion steering (23) to center position, mount steering coupling (25)

 Do not use force (hammer blows, a lot of leverage), if necessary expand clamping groove slightly using a screwdriver.

AR46.20-P-0600-01A

19

Attach steering coupling (25)

 Installation: Replace self-locking nuts.



*BA46.10-P-1001-01B

 Engine 112, 119: 

Attach shield of steering coupling.

AR46.10-P-0400-01B

20

Attach return line (30f)

 Installation: Replace sealing rings.



*BA46.20-P-1003-01A

21

Attach high-pressure expansion hose (30i)

 Installation: Replace sealing rings.



*BA46.20-P-1003-01A

22.1

Mount return line on steering gear

Vehicles with level control



*BA46.20-P-1002-01A

23

Mount tie rods (10) on the steering knuckles

 Installation: Replace self-locking nuts.



*BA46.40-P-1002-01A



Surface protection of bolted connection for tie rod to steering knuckle modified

Model 210 as of 18.5.98

BT46.40-P-0001-01A

24

Install front wheels



Remove/install wheels, rotate if necessary

AP40.10-P-4050Z

25

Lower vehicle

26

Fill power steering pump and bleed

AR46.30-P-0010B

27.1

Connect electrical connection (2) on PML solenoid valve (Y10)

Vehicles with speed-sensitive power steering, code 213a.

28

Check steering for function and leaks

 A grease filling is located under the cap. A slight escape of grease is to be regarded as normal and should not be confused with leakage.

29.1

Check front axle toe and adjust if necessary

 When installing new parts.

see: 

Perform a wheel alignment check

AR40.20-P-0200A

30.1

Install engine compartment paneling

Vehicles with gasoline engine

AR61.20-P-1105AB

30.2

Install bottom sections of soundproofing

Vehicles with diesel engine

AR94.30-P-5300AB

31

Close engine hood

AR88.40-P-1000F

Number

Designation

Model 210

BA46.10-P-1001-01B

Steering joint bolt

Nm

20

Number

Designation

Model
210

BA46.20-P-1002-01A

Return line to steering gear

Nm

40

BA46.20-P-1003-01A

High-pressure expansion hose to steering gear

Nm

40

BA46.20-P-1007-01A

Rear bolted connection, rack-and-pinion steering to front-axle carrier

Stage 1

Nm

50

Stage 2

°

60

BA46.20-P-1008-01A

Retaining plate to front-axle carrier

Nm

50

Number

Designation

Model
210

BA46.40-P-1002-01A

Self-locking nut, tie rod to steering knuckle

Yellow

Nm

60

silver or blue

Nm

70