Remove/install rear axle shaft

AR35.30-P-0620TX

Remove/install rear axle shaft

25.10.10

 

Remove/install

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



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

1

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.



Connect STAR DIAGNOSIS and read out fault memory

AD00.00-P-2000-04A

2

Secure vehicle on the lifting platform

AR00.60-P-0100TX

3

Empty rear springs completely using STAR DIAGNOSIS

Vehicles with AIRmatic (semi-active air suspension), code 489

AR32.22-P-1500-04TX



Notes on AIRmatic

AH32.22-P-1000-02T



Connect STAR DIAGNOSIS and read out fault memory

AD00.00-P-2000-04A

 Installation: The filling process for the air springs must be observed, otherwise the air springs will be irreparably damaged.

AR32.22-P-1500-03TX



*BA32.25-P-1006-04K



*BA32.25-P-1007-04K



*211589000900



*001589862100



*001589000300

Electronic inclinometer
gotis://F_40.2_02.0

4

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

 To prevent wheel bearing damage the vehicle must no longer be moved on its wheels when the twelve-point collar nut (12) has been loosened.

AR35.30-P-0115-01TX

 Installation: Replace twelve-point collar nut (12), tighten and secure.



*BA35.30-P-1001-01F

5

Remove rear wheel



Remove/install wheels, rotate if necessary

AP40.10-P-4050TX

6

Remove rear brake pads

 Fasten brake caliper to a suitable point in the wheel housing with a hook to relieve stress on the brake hose and secure it to prevent it from falling. Brake hose may otherwise be damaged.

Model 219.322/ 354/ 356/ 357/ 372/ 375

AR42.10-P-1700TX

Model 219.376/ 377

AR42.10-P-1700TZ

7

Detach rear brake cable (86) at cable slack adjuster on parking brake

AR42.20-P-0525TX

8

Detach stabilizer bar link rod (6k) from wheel carrier (7)



*BA32.20-P-1001-04J

9

Lift wheel carrier (7) using transmission jack and transmission platform

 The rear axle shaft (37) must be approximately horizontal.

 Installation: Tighten threaded connections of torque strut (3), camber strut (2), thrust arm (5) and tie rod (4).



*BA35.20-P-1002-03E



*BA35.20-P-1002-02E



*BA35.20-P-1002-05E



*BA35.20-P-1001-04E

10

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

 Installation: Bolt on torque strut (3) loosely.

11

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

 Installation: Bolt on camber strut (2) loosely.

12

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

 Installation: Bolt on tie rod (4) loosely.

13

Detach thrust arm (5) from wheel carrier (7)

 Installation: Bolt on thrust arm (5) loosely.

14

Lower transmission jack

 Installation: Lift wheel carrier (7) with transmission jack and transmission platform until the rear axle shaft (37) is approximately horizontal.

15

Fold down wheel carrier (7) and pull rear axle shaft (37) out of rear axle shaft flange

 Do not overstretch the rear brake cable (86) to avoid any damage.

 Hook the rear axle shaft (37) up to avoid damaging the rubber boot of the rear axle shaft (37).

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



Pull out/press in rear axle shaft (37) at rear axle shaft flange.

AR35.30-P-0115-03TX



*210589034300



*210589014000

16

Pull rear axle shaft (37) out of the rear axle center assembly (50)

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

AR35.30-P-0620-02TX

 Do not damage protective ring (37a). Align twisted protective ring (37a) before installing rear axle shaft (37) to prevent grinding noises while driving.

 Do not damage radial sealing ring in rear axle center assembly (50) in order to prevent leakage.

 Installation: Install new retaining ring (37o) on inner splined profile.

17

Lower differential (50)

Vehicles with code (489) AIRmatic (semi-active air suspension) and balance mass on rear axle shaft (37)

 Detach the additional volume reservoir only on the affected side.



Checking

18

Check constant velocity joints and rubber boots for leaks and 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 condition of radial sealing ring in side of rear axle center assembly (50)

If damaged or leaking:



Replace radial sealing rings on side of differential (50).

AR35.31-P-0545TX

20

Install in the reverse order

21

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

 In order to avoid damage to the rear axle center assembly (50), it is absolutely essential to follow the work procedure and the Specifications for Operating Fluids.

AR35.31-P-0520-03TX

 In the interest of better fuel economy, avoid mixing old universal hypoid gear oil with new FE hypoid gear oil.



*BA35.31-P-1002-02D



*BF35.31-P-1003-01P



*BF35.31-P-1004-01P



*BF35.31-P-1005-01P

Loctite 7063 cleaning spray (150 ml)

*BR00.45-Z-1046-04A

Omnifit sealing compound 100H (50 g)

*BR00.45-Z-1061-01A

22.1

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 after repair"/"Remove/install brake pads" menu item.

Then process all the individual steps from top to bottom.



Connect STAR DIAGNOSIS and read out fault memory

AD00.00-P-2000-04A

STAR DIAGNOSIS diagnosis system

Danger!

Risk of accident when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work

Before starting engine, actuate brake pedal several times until the pressure is built up and maintained in the brake system.

AS42.50-Z-0002-01A

22.2

Press the brake pedal several times until the brake pads contact the brake disks

Vehicles with Adaptive Brake (ABR)

 Firm resistance should be noticeable at the brake pedal.

23

Perform wheel alignment check

AR40.20-P-0200TX

Number

Designation

Model
219

BA32.20-P-1001-04J

Nut, link rod to wheel carrier

Nm

50

Number

Designation

Model
219 with
AIRmatic

BA32.25-P-1006-04K

Nut, rear air spring at spring control arm

Nm

150

BA32.25-P-1007-04K

Air suspension pressure line at rear axle distributor

Nm

5

Number

Designation

Model
219

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
219

BA35.20-P-1002-02E

Self-locking nut, camber strut to wheel carrier.

Aluminum

M12

Stage 1

Nm

50

Stage 2

°

90

Steel

M14

Stage 1

Nm

80

Stage 2

°

90

Number

Designation

Model
219

BA35.20-P-1002-03E

Self-locking nut, torque strut to wheel carrier

Aluminum

M12

Stage 1

Nm

50

Stage 2

°

90

Steel

M14

Stage 1

Nm

80

Stage 2

°

90

Number

Designation

Model
219

BA35.20-P-1001-04E

Self-locking nut, tie rod at wheel carrier

Stage 1

Nm

40

Stage 2

°

90

Number

Designation

Model
219

BA35.20-P-1002-05E

Self-locking nut, thrust arm to wheel carrier

Aluminum

M12

Stage 1

Nm

50

Stage 2

°

90

Steel

M14

Stage 1

Nm

80

Stage 2

°

90

Number

Designation

Model
219

BA35.31-P-1002-02D

Oil filler screw, differential

Nm

50

Number

Designation

Model
219 except 219.376/377

Model
219.376/377

BF35.31-P-1003-01P

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-1004-01P

Filling capacity

Rear axle differential dia. 198 mm

Liters

1.1

-

Specifications for Operating Fluids

Sheet

BB00.40-P-0235-07A

-

BF35.31-P-1005-01P

Filling capacity

Rear axle center assembly dia. 200 mm

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-1046-04A

Loctite 7063 cleaning spray (150 ml)

A 001 986 71 71 10