Remove/install rack-and-pinion steering

AR46.20-P-0600LF

Remove/install rack-and-pinion steering

13.01.2020

Model

217

Model

222

Shown on MODEL 222 with CODE M005 (4MATIC)

1

Bolts

5

Screw

9

Cable duct

2

Bolts

6

Screw

10

Rack-and-pinion steering

3

Screw

7

Electrical connector

11

Mounting plates

4

Screw

8

Screw

Shown on MODEL 222 with CODE M005 (4MATIC)

1

Bolts

6

Screw

12

Screw

2

Bolts

7

Electrical connector

13

Screw

5

Screw

10

Rack-and-pinion steering

14

Protective plate

Shown on model 222

Pfeil

Tool

Shown on model 222

7

Electrical connector

15

Insulating plate

10

Rack-and-pinion steering

16

Electrical power steering control unit

Shown on model 217.4

32

Front diagonal struts

 Danger

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

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Topical note

General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system

AH00.00-Z-0300-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on battery

AH54.10-P-0001-01A

Notes on safety-relevant components

AH00.00-Z-0019-01A

Evaluating steering gear when repairing accident vehicles

AH46.20-P-9409-01A



Remove

1

Perform power disconnect of high-voltage on-board electrical system.

Model 222.004/057/104/157/163

AR54.10-P-1150LF

2

Deactivate easy entry and exit feature for driver's seat and steering wheel.

Model 217
Model 222
with code 275 (Memory Package (driver's seat, steering column and mirror))

 See vehicle operating instructions.

3

Turn steering wheel to center position (front wheels in straight-ahead position) and fix in place using holding device.

AR46.20-P-0600-01RK


Do not turn steering wheel with steering coupling removed.
Clock spring contact will otherwise be destroyed.

 Retainer device

*129589012100

4

Remove front wheel and tire assemblies.

AR40.10-P-1102A

5.1

Remove rear and center section of lower engine compartment lining.

Model 217, 222
except code M005 (Vehicles with 4MATIC/all-wheel drive)

Model 217, 222
except code M005 (Vehicles with 4MATIC/all-wheel drive)

AR61.20-P-1105LF

5.2

Remove front and center section of lower engine compartment lining.

Model 217, 222
with code M005 (Vehicles with 4MATIC/all-wheel drive)

Model 217, 222
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AR61.20-P-1105LF

6

Remove front diagonal struts (32).

Model 217.4

 Screw/bolt, front diagonal strut to front axle carrier/body

*BA61.10-P-1018-01K

7

Remove tie rods from steering knuckles.

AR46.40-P-0200LF

8

Remove steering coupling from rack-and-pinion steering (10).

Model 222 up to 4/29/14

AR46.10-P-8000RK

Model 217
Model 222 as of 4/30/14

AR46.10-P-8000LW

9

Release and disconnect electrical connector(7).

10

Unscrew screw (8) and place cable duct (9) to one side.

Model 217, 222
except code M005 (Vehicles with 4MATIC/all-wheel drive)

11

Attach engine support fixture and lift engine up to engine mount end stop.

Model 217
with code M005 (Vehicles with 4MATIC/all-wheel drive)
Model 222 (except 222.020/021/034/035/120/121/134/135)
with code M005 (Vehicles with 4MATIC/all-wheel drive)

Model 217 with engine 157, 276, 278, 279
with code M005 (Vehicles with 4MATIC/all-wheel drive)
Model 222 with engine 157, 276.8/9, 277, 278, 279
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AR33.10-P-0105LF

Model 222 with engine 642
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AR33.10-P-0105LFD

Model 222 with engine 256
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AR33.10-P-0105MRT

 Do not detach engine mounts.

12.1

Support rack-and-pinion steering (10) using suitable means and secure to prevent it from falling down.

Model 217, 222
except code M005 (Vehicles with 4MATIC/all-wheel drive)

12.2

Support rack-and-pinion steering (10) on guard plate (14) and secure to prevent it from falling down.

Model 217, 222
with code M005 (Vehicles with 4MATIC/all-wheel drive)

13

Remove screws (5, 6).

 Model 217, 222
with code M005 (Vehicles with 4MATIC/all-wheel drive)
Counterhold nuts with suitable tool (arrow).

14.1

Unscrew screws (1, 2, 3, 4) and remove mounting plates (11).

Model 217, 222
except code M005 (Vehicles with 4MATIC/all-wheel drive)

14.2

Unscrew screws (1, 2, 12, 13).

Model 217, 222
with code M005 (Vehicles with 4MATIC/all-wheel drive)

15.1

Remove rack-and-pinion steering (10).

Model 217, 222
except code M005 (Vehicles with 4MATIC/all-wheel drive)

15.2

Remove rack-and-pinion steering (10) and take guard plate (14) off rack-and-pinion steering (10).

Model 217, 222
with code M005 (Vehicles with 4MATIC/all-wheel drive)



Install

16

Detach protective foil of insulating plate (15) and bond insulating plate (15) to electrical power steering control unit (16).

Model 217
Model 222.077/177 with engine 157.985
Model 222.176/976 with engine 277.980
Model 222.179 with engine 279.980
When replacing the rack-and-pinion steering (10).

 Check that the insulating plate (15) is positioned correctly.
Position at the cutout on the electrical power steering control unit (16) and stick on.

17.1

Install rack-and-pinion steering (10).

Model 217, 222
except code M005 (Vehicles with 4MATIC/all-wheel drive)

 Replace bolts (1, 2, 3, 4, 5, 6) and mounting plates (11).

 Fit the bolts (1, 2, 3, 4, 5, 6) but do not tighten.

17.2

Install rack-and-pinion steering (10) with guard plate (14).

Model 217, 222
with code M005 (Vehicles with 4MATIC/all-wheel drive)

 Replace bolts (1, 2, 5, 6, 12, 13).

 Counterhold nuts of screws/bolts (5, 6) with suitable tool (arrow).

 Fit the screws/bolts (1, 2, 5, 6, 12, 13) but do not tighten.

18.1

Tighten screws (1, 2, 3, 4, 5, 6) to torque.

Model 217, 222
except code M005 (Vehicles with 4MATIC/all-wheel drive)

 When tightening, observe the following sequence: screws (5, 6, 1, 2, 3, 4).

 Model 217.377/379/382/477/479/482
except code M005 (Vehicles with 4MATIC/all-wheel drive)
Model 222.004/032/057/077/082/104/123/157/162/163/165/176/177/179/182/976/982
except code M005 (Vehicles with 4MATIC/all-wheel drive)Bolt, rack-and-pinion steering to front axle carrier

*BA46.20-P-1001-01P

 Model 217.377/379/382/477/479/482
except code M005 (Vehicles with 4MATIC/all-wheel drive)
Model 222.004/032/057/077/082/104/123/157/162/163/165/176/177/179/182/976/982
except code M005 (Vehicles with 4MATIC/all-wheel drive)Bolt, rack-and-pinion steering mounting plate to front axle carrier

*BA46.20-P-1002-01P

18.2

Tighten screws (1, 2, 5, 6, 12, 13) to torque.

Model 217, 222
with code M005 (Vehicles with 4MATIC/all-wheel drive)

 When tightening, observe the following sequence: screws (5, 6, 1, 2, 12, 13).

 Model 217.364/378/384/385/478
with code M005 (Vehicles with 4MATIC/all-wheel drive)
Model 222.033/067/085/133/167/178/184/185/967/984/985
with code M005 (Vehicles with 4MATIC/all-wheel drive)Bolt, rack-and-pinion steering to front axle carrier

*BA46.20-P-1001-01P

 Model 217.364/378/384/385/478
with code M005 (Vehicles with 4MATIC/all-wheel drive)
Model 222.033/067/085/133/167/178/184/185/967/984/985
with code M005 (Vehicles with 4MATIC/all-wheel drive)Bolt, rack-and-pinion steering guard plate to front axle carrier

*BA46.20-P-1003-01P

19

Lower engine and remove engine support fixture.

Model 217
with code M005 (Vehicles with 4MATIC/all-wheel drive)
Model 222 (except 222.020/021/034/035/120/121/134/135)
with code M005 (Vehicles with 4MATIC/all-wheel drive)

Model 217 with engine 157, 276, 278, 279
with code M005 (Vehicles with 4MATIC/all-wheel drive)
Model 222 with engine 157, 276.8/9, 277, 278, 279
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AR33.10-P-0105LF

Model 222 with engine 642
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AR33.10-P-0105LFD

Model 222 with engine 256
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AR33.10-P-0105MRT

20

Position cable duct (9) and tighten screw (8).

Model 217, 222
except code M005 (Vehicles with 4MATIC/all-wheel drive)

21

Connect electrical connector (7).

22

Attach steering coupling to rack-and-pinion steering (10).

Model 222 up to 4/29/14

AR46.10-P-8000RK

Model 217, 222 as of 4/30/14

AR46.10-P-8000LW

23

Attach tie rods to steering knuckles.

AR46.40-P-0200LF

24.1

Install rear and center section of lower engine compartment lining.

Model 217, 222
except code M005 (Vehicles with 4MATIC/all-wheel drive)

AR61.20-P-1105LF

24.2

Install front and center section of the bottom engine compartment lining.

Model 217, 222
with code M005 (Vehicles with 4MATIC/all-wheel drive)

AR61.20-P-1105LF

25

Install front wheel and tire assemblies.

AR40.10-P-1102A

26

Remove holding device from steering wheel.

27

Activate easy entry/exit feature for driver's seat and steering wheel.

Model 217, 222
with code 275 (Memory Package (driver's seat, steering column and mirror))

 See vehicle operating instructions.

Concluding tasks

28

Connect vehicle diagnosis system and perform commissioning of rack-and-pinion steering (10).

After replacing rack-and-pinion steering (10).



AD00.00-P-2000-04B

29

Add new steering number of rack-and-pinion steering (10) to online vehicle data card via the vehicle documentation system (VeDoc).

After replacing rack-and-pinion steering (10).

 Redocumentation is absolutely essential.

30

Put the high-voltage on-board electrical system into operation.

Model 222.004/057/104/157/163

AR54.10-P-1150LF

31

Perform chassis alignment.

AR40.20-P-0200LF

 Steering gear

Number

Designation

Model 217, 222 (except 222.150)
except code M005 (Vehicles with 4MATIC/all-wheel drive)

Model 217, 222 (except 222.150)
with code M005 (Vehicles with 4MATIC/all-wheel drive)

BA46.20-P-1001-01P

Bolt, rack-and-pinion steering to front axle carrier

M8

Nm

-

30

M12

Stage 1

Nm

100

100

Stage 2

°

90

90

 Steering gear

Number

Designation

Model 217, 222 (except 222.150)
except code M005 (Vehicles with 4MATIC/all-wheel drive)

BA46.20-P-1002-01P

Bolt, rack-and-pinion steering mounting plate to front axle carrier

M10

Nm

50

 Steering gear

Number

Designation

Model 217, 222 (except 222.150)
with code M005 (Vehicles with 4MATIC/all-wheel drive)

BA46.20-P-1003-01P

Bolt, rack-and-pinion steering guard plate to front axle carrier

M10

Nm

50

 Frame floor assembly

Number

Designation

Model 217

BA61.10-P-1018-01K

Screw/bolt, front diagonal strut to front axle carrier/body

M8

Nm

17

M10

Nm

50