Remove/install rear axle shaft

AR35.30-P-0620R

Remove/install rear axle shaft

25.10.10

 

Remove/install

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 injury caused by body parts being jammed or crushed. Risk of injury to skin and eyes caused by brake fluid spraying out at high pressure when working on the SBC brake system

Deactivate SBC brake system using STAR DIAGNOSIS.

AS42.46-Z-0001-01A



While working on the rear axle care must be taken to ensure that the surfaces of all aluminum components do not get any scratches, cracks and notches. Otherwise the service life of the parts will be affected



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

 Installation

Only tighten nuts and bolts of chassis components when vehicle is in a ready-to-drive condition.

1

Secure vehicle on vehicle lift

2

Deactivate SBC brake system using STAR DIAGNOSIS.

Vehicles with Sensotronic Brake Control (SBC)

 The following steps should be run through in STAR DIAGNOSIS:

Select menu item "SBC Sensotronic Brake Control"/"Deactivate 'SBC' system".

Then process all the individual steps from top to bottom.

3

Remove rear wheel



Remove/install wheels

AP40.10-P-4050Z

4

Unscrew twelve-point collar nut (12) from rear axle shaft (37)

AR35.30-P-0115-01A



*BA35.30-P-1001-01F

5

Remove exhaust system

Model 230.470/ 472/ 474

AR49.10-P-7000RA

Model 230.454/ 456/ 458/ 467/ 471/ 475

AR49.10-P-7000R

Model 230.476/ 477/ 479

AR49.10-P-7000RB

6

Remove heat shield under propeller shaft

7

Detach brake caliper from wheel carrier (7) and hang up to one side by means of a hook with the brake hose connected

Model 230.470/ 472/ 474/ 476/ 477/ 479

AR42.10-P-0080RA

Model 230.454/ 456/ 458/ 467/ 471/ 475

AR42.10-P-0080R

8

Unhook rear brake cable from cable slack adjuster

AR42.20-P-0520-03R



*BA42.20-P-1005-01A



*129589116300

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

9

Relieve pressure in ABC system

Vehicles with code (487) Active Body Control (ABC)

AR32.50-P-0001-01N



*BA32.50-P-1001-02B

10

Lift wheel carrier (7) until rear axle shaft (37) is horizontal

11

Detach torque strut (3) from wheel carrier (7)

 Installation: The rear axle shaft (37) must be horizontal when tightening the bolted connection.



*BA35.20-P-1002-03C

12

Detach camber strut (2) from wheel carrier (7)

 Installation: The rear axle shaft (37) must be horizontal when tightening the bolted connection.



*BA35.20-P-1002-02C

13

Detach tie rod (4) from wheel carrier (7)

Vehicles with code (P99) Special model "AMG Black Series"

AR35.20-P-0109RBS

Vehicles without code (P99) Special model "AMG Black Series"

AR35.20-P-0109R

 Installation: The rear axle shaft (37) must be horizontal when tightening the bolted connection.



*BA35.20-P-1001-04C

14

Unscrew nut (6b) and pull bolt (6a) out of spring control arm (6) and wheel carrier (7)

 Installation: Hammer back fitted sleeve flush with the support of the spring control arm (6).



*BA35.20-P-1004-01A

15

Lower wheel carrier (7) and fold out downwards

16

Pull rear axle shaft (37) out of rear axle shaft flange

 Do not damage the rubber boots or multipole ring of the ABC system.

If the rear axle shaft (37) is difficult to remove: 

Pressing rear axle shaft (37) out of the rear axle shaft flange.

AR35.30-P-0115-03B



*210589034300



*210589014000

17

Lever rear axle shaft (37) out of rear axle center assembly (50) and remove rear axle shaft (37)

 Do not fasten an assembly lever to the protection ring (37a).

 Support assembly lever at rear axle center assembly (50) e.g. with a fork wrench.

 Installation: Replace the retaining ring at the inner splined profile.



Checking

18

Check constant velocity joints and rubber boots for damage

 If the constant velocity joint is defective, the rear axle shaft (37) must be completely replaced.

If damaged or leaking:



Replace constant velocity joint or rubber boot on rear axle shaft.

AR35.30-P-0661P

19

Check radial sealing ring in rear axle center assembly (50) for condition

If damaged or leaking:



Replace radial sealing ring on the side of the differential (50).

AR35.31-P-0545R

20

Install in the reverse order

21

Check oil level in rear axle differential (50) and correct if necessary

Vehicles without code (P99) Special model "AMG Black Series"

AR35.31-P-0520-03I

Vehicles with code (P99) Special model "AMG Black Series"

AR35.31-P-0520-03RBS

 Mixing of old universal hypoid gear oil and the new FE hypoid gear oil should be avoided due to the better fuel economy.

 Important note: For model 230.479 only rear axle oil type CASTROL SAF-XJ is permissible.



Oil filler/drain screw on rear axle differential modified

Phased in as of 19.01.04

BT35.31-P-0015-01A



*BA35.31-P-1002-02A



*BA35.31-P-1012-02A



*BA35.31-P-1013-02A



*BA35.31-P-1014-02A



*BA35.31-P-1017-02A

 Filling capacity of 198 mm dia. rear axle center assembly

*BF35.31-P-1002-01L

 Filling capacity of 200 mm dia. rear axle center assembly

*BF35.31-P-1006-01L

 Filling capacity of rear axle center assembly dia. 210 mm in rear axle center assembly 210E

*BF35.31-P-1001-01L

Filling capacity of 215 mm dia. rear axle center assembly

*BF35.31-P-1004-01L

Cleaner from package

*BR00.45-Z-1028-04A

Loctite 7063 cleaning spray (150 ml)

*BR00.45-Z-1046-04A

Sealant, Omnifit 100H (50 g)

*BR00.45-Z-1061-01A

22

Activate SBC brake system using STAR DIAGNOSIS

Vehicles with Sensotronic Brake Control (SBC)

 The following steps should be run through in STAR DIAGNOSIS:

Select "Initial startup following repair"/"Replacement of brake disks" menu item.

Then process all the individual steps from top to bottom.

23

Fill and bleed ABC system

Vehicles with code (487) Active Body Control (ABC)

AR32.50-P-0021N

24

Perform wheel alignment check

AR40.20-P-0200R

Number

Designation

Model
230
except 230.479

BA35.30-P-1001-01F

Collar nut, rear axle shaft to rear axle shaft flange

self-locking

Nm

350

not self-locking

Stage 1

Nm

170

Stage 2

°

45

Number

Designation

Model 230.479
without code P99

Model 230.479 with
code P99

BA35.30-P-1001-01F

Collar nut, rear axle shaft to rear axle shaft flange

self-locking

Nm

-

-

not self-locking

Stage 1

Nm

150

380

Stage 2

°

45

-

Number

Designation

Model
230 except code P99

Model
230 with code P99

BA35.20-P-1002-03C

Self-locking nut, torque strut to wheel carrier

Aluminum

M12

Stage 1

Nm

50

-

Stage 2

°

90

-

Steel

M14

Stage 1

Nm

80

65

Stage 2

°

90

90

Number

Designation

Model
230 except code P99

Model
230 with code P99

BA35.20-P-1002-02C

Self-locking nut, camber strut to wheel carrier.

Aluminum

M12

Stage 1

Nm

50

-

Stage 2

°

90

-

Steel

M14

Stage 1

Nm

80

65

Stage 2

°

90

90

Number

Designation

Model
230 with code P99

Model
230 except code P99

BA35.20-P-1004-01A

Self-locking nut, spring control arm to wheel carrier.

Aluminum

M14

Stage 1

Nm

-

150

Stage 2

°

-

-

Steel

M14

Stage 1

Nm

150

80

Stage 2

°

-

90

Number

Designation

Model
230

BA35.20-P-1001-04C

Self-locking nut, tie rod at wheel carrier

Stage 1

Nm

40

Stage 2

°

90

Number

Designation

Model
230 except code P99

Model
230 with code P99

BA35.31-P-1002-02A

Oil filler screw, differential

Nm

50

-

BA35.31-P-1012-02A

Threaded insert to differential housing

Nm

-

50

BA35.31-P-1013-02A

Fitting to threaded insert

Nm

-

40

BA35.31-P-1014-02A

Union nut, oil hose to fitting

Nm

-

35

BA35.31-P-1017-02A

Banjo bolt, oil hose to threaded inserted

Nm

-

25

Number

Designation

Model
230

BA42.20-P-1005-01A

Bolt, brake cable at cable slack adjuster

Nm

12

Number

Designation

Model
230

BA32.50-P-1001-02B

Bleed screw on soldered fitting in hydraulic line

M101

Nm

20

Number

Designation

Model
230 except 230.470/472/ 474/479

Model
211.077/277,
model
230.470/472/
474/479

BF35.31-P-1001-01L

Filling capacity

210 mm dia.rear axle differential in rear axle differential 210E

Liters

1.6

-

Specifications for Operating Fluids

Sheet

BB00.40-P-0235-07A

-

BF35.31-P-1002-01L

Filling capacity

Rear axle differential dia. 198 mm

Liters

1.1

-

Specifications for Operating Fluids

Sheet

BB00.40-P-0235-07A

-

BF35.31-P-1004-01L

Filling capacity

Differential Ø 215 mm

Liters

1.2

1.2

Specifications for Operating Fluids

Sheet

BB00.40-P-0235-07A

BB00.40-P-0235-61A

BF35.31-P-1006-01L

Filling capacity

200 mm dia. rear axle differential in rear axle differential 200FE

Liters

1.1

-

Specifications for Operating Fluids

Sheet

BB00.40-P-0235-07A

-

Number

Designation

Order number

BR00.45-Z-1061-01A

Sealant, Omnifit 100H (50 g)

A 002 989 23 71

BR00.45-Z-1028-04A

Cleaner from package

Adolf Würth GmbH & Co. KG
Reinhold-Würth-Str. 12-17
74653 Künzelsau-Gaisbach
Germany
Tel. +49 7940 15-0
Fax +49 7940 15-1000
www.wuerth.de

BR00.45-Z-1046-04A

Loctite 7063 cleaning spray (150 ml)

A 001 986 71 71 10