Remove/install front axle shafts

AR33.30-P-0620I

Remove/install front axle shafts

13.4.11

9.8.08

SWZ 140 589 00 33 00 for prying off upper ball joint added

Operation step 3

AR33.20-P-0500-01N

 

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

 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



When working on the front-end assembly, be careful not to scratch, mark or notch the surfaces of aluminum parts. Otherwise the service life of the parts will be affected



Notes on self-locking nuts and bolts

All models

AH00.00-N-0001-01A

 Installation

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

1

Deactivate SBC brake system using STAR DIAGNOSIS.

Model 211

 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.

2

Completely discharge all air from air spring with STAR DIAGNOSIS

 Residual pressure in spring strut up to 3.5 bar.

3

Raise vehicle with vehicle lift

4

Remove front wheels



Remove/install wheels, rotate if necessary

AP40.10-P-4050Z

5

Unscrew hexagon collar bolt (61a) from right front axle shaft (60a) or left front axle shaft (60b)

AR33.30-P-0620-05P



*BA33.30-P-1003-02C

6

Remove lower engine compartment paneling

Model 211

AR61.20-P-1105T

Model 220

AR61.20-P-1105M

7

Remove brake caliper from front axle

Model 211

AR42.10-P-0070T

Model 220

AR42.10-P-0070I

 Attach brake caliper to vehicle without tension to relieve brake hose so that it is not damaged during repair.

 The brake hose does not have to be unscrewed from the brake caliper.

8

Remove front left or right rpm sensor

Model 220

AR42.30-P-0712I

 Remove rpm sensor of brake caliper and hang up to one side. Do not loosen connector of electrical line to rpm sensor

9

Push supporting joint (7) out of steering knuckle (5)

 After prying off at the supporting joint screw the nut on again, otherwise the steering knuckle may fall down and become damaged. Only unscrew the nut when the steering knuckle is removed.

Model 211

AR33.20-P-0440-01VM



*BA33.20-P-1017-01A



*140589006300



*203589003300

Model 220

AR33.20-P-0440-01IW



*BA33.20-P-1010-01F



*140589006300



*202589023300

10

Press tie rod joint (10a) out of steering knuckle (5)

AR46.40-P-0200-02IW



*BA46.40-P-1001-01E



*140589006300



*124589023300



*140589003300

11

Push follower joint of upper transverse control arm out of steering knuckle (5)

 The follower joint must be removed, otherwise the follower joint is damaged by hard pulling or excessive angles.



*BA33.20-P-1018-01A

Model 211

AR33.20-P-0500-01VM



*210589046300



*202589023300

Model 220

AR33.20-P-0500-01N



*BA33.20-P-1007-01F



*210589046300



*202589023300



*140589003300

12

Detach stabilizer bar link rod from stabilizer bar

Model 211

AR32.20-P-0300-02VM



*BA32.20-P-1002-02B

Model 220

AR32.20-P-0300-02VB



*BA32.20-P-1002-02H

13

Remove front suspension strut from transverse control arm

Model 211

AR33.20-P-0500-06VM



*BA32.25-P-1012-04B

14

Move steering knuckle (5) out of supporting joint (7)

15

Remove steering knuckle (5) and move right front axle shaft (60a) or left front axle shaft (60b) out of front axle shaft flange

 Avoid damaging the rubber boots on the front axle shaft and the rubber boot on the supporting joint (7).

 If necessary, to loosen the front axle shaft, screw in the hexagon collar bolt (61a) a few threads again and knock out the front axle shaft a little using a rubber hammer.

16.1

Push out right front axle shaft (60a) and remove

 Do not damage the rubber boots and rpm sensor rotor. To avoid damaging the wheel bearings, the vehicle must not be moved on its wheels with the front axle shaft removed.

AR33.30-P-0620-02P

 Mount the  chain onto the pot of the right-hand front axle shaft. Ensure that the  chain is attached as close as possible towards the front axle gear (50).

 When moving the front axle shaft in and out, ensure that the sealing ring is not damaged by the splines and the circlip.



*203589036300

16.2

Knock out and remove left front axle shaft (60b)

 Do not damage the plastic guard ring (60m), rubber boots and rpm sensor rotor. To avoid damaging the wheel bearings, the vehicle must not be moved on its wheels with the front axle shaft removed.

AR33.30-P-0620-03P



Checking

17

Check joints and rubber boots of front axle shaft for leaks and damage

 New front axle shaft must be installed if damaged is found.

18

Check radial sealing ring in front axle gear (50) of right-hand front axle shaft (60a) for damage

 If damaged the radial sealing ring must be replaced: 

Install new radial sealing ring on outside right of front axle gear

Model 211

AR33.30-P-0540VM

Model 220

AR33.30-P-0540P

19

Install in the reverse order

20

Charge air spring with STAR DIAGNOSIS at design level.

 The wheels must not touch the ground while pressurizing because the air bellows in the suspension strut will be destroyed if pressurized with the suspension compressed.

 Pressurize to 5 bar.

21

Activate SBC brake system using STAR DIAGNOSIS

Model 211

 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.

Number

Designation

Model
211.08/09/
28/29

Model
220.08/18

BA33.30-P-1003-02C

Collar bolt, front axle shaft to front axle shaft flange

Stage 1

Nm

70

70

Stage 2

°

90

90

Number

Designation

Model
211.08/09/ 28/29

BA33.20-P-1017-01A

Self-locking nut, supporting joint to steering knuckle

Stage 1

Nm

70

Stage 2

°

50

BA33.20-P-1018-01A

Self-locking nut, upper wishbone follower joint to steering knuckle

Stage 1

Nm

20

Stage 2

°

90

Number

Designation

Model 220.08/18

BA33.20-P-1007-01F

Self-locking nut, upper wishbone follower joint to steering knuckle

Stage 1

Nm

20

Stage 2

°

90

BA33.20-P-1010-01F

Self-locking nut, supporting joint to steering knuckle

Stage 1

Nm

70

Stage 2

°

50

Number

Designation

Model 220.083/
084/087/
183/184/
187

Model
211.08/09/ 28/29

BA46.40-P-1001-01E

Self-locking nut, tie rod to steering knuckle

Stage 1

Nm

55

55

Stage 2

°

-

-

Number

Designation

Model
211.08/09/
28/29

BA32.20-P-1002-02B

Self-locking nut, connecting rod to torsion bar

M10

Nm

-

M101.5

Nm

-

M121.5

Nm

95

M141.5

Nm

-

Number

Designation

Model 220.083/
084/087/
183/184/
187

BA32.20-P-1002-02H

Nut, link rod to stabilizer bar

Nm

95

Number

Designation

Model
211.08/
09/28/29

BA32.25-P-1012-04B

Nut of shock-absorber strut to transverse control arm

Nm

162