Remove/install inserted rear axle shaft

AR35.30-P-0621MSA

Remove/install inserted rear axle shaft

18.02.2020

Model

257 with engine 256, 264

Model

290 with engine 256

Modification notes

31.07.2019

Remove torsion bar linkage from wheel carrier (7).

Operation step 5.

2

Camber strut

7

Wheel carrier

37o

Retaining ring

3

Thrust arm

37

Rear axle shaft

37m

Boots

4

Tie rod

37a

Protective ring

50

Rear axle gear

5

Strut rod

 Caution

Risk of injury to skin and eyes due to handling of transmission oil. Health risk caused by swallowing transmission oil

Wear protective gloves, protective clothing and safety glasses.
Do not pour transmission oil into beverage bottles.

AS00.40-Z-0001-01A

Topical note

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

AH00.00-P-0020-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Notes on repair work on suspension components

AH00.00-P-0100-01A

 

Remove/install

1

Remove corresponding rear wheel and tire assembly.

AR40.10-P-1102A

2

Remove collar nut of rear axle shaft (37).

 Installation: Replace collar nut and secure by caulking after tightening.

 Model 290 with engine 256Nut, rear axle shaft to wheel bearing

*BA35.30-P-1001-01Q

 Model 257 with engine 256, 264Nut, rear axle shaft to wheel bearing

*BA35.30-P-1001-01N

3

Remove plastic cover from spring link.

4

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

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

 Self-locking nut, tie rod to rear axle carrier

*BA35.20-P-1002-04M

 Bolt, thrust arm to wheel carrier

*BA35.20-P-1002-05L

 Bolt, camber strut to wheel carrier

*BA35.20-P-1002-02L

 Bolt, strut rod to wheel carrier

*BA35.20-P-1002-03N

5

Remove torsion bar linkage from wheel carrier (7).

Model 290 with engine 256

 Screw, torsion bar linkage to wheel carrier

*BA32.35-P-1002-03C

6

Remove camber strut(2) from wheel carrier(7).

 Installation: Screw on bolted connection loosely.

7

Remove thrust arm(3) from wheel carrier(7).

 Installation: Screw on bolted connection loosely.

8

Remove tie rod(4) from wheel carrier(7).

 Installation: Screw on bolted connection loosely.

9

Remove strut rod(5) from wheel carrier(7).

 Installation: Screw on bolted connection loosely.

10

Unclip electric line of rpm sensor from holder at wheel carrier(7) and holder at wheel arch.

11

Disconnect electrical connector at actuator motor of electric parking brake and expose electric line.

Model 290 with engine 256

AR42.20-P-0600FRX

Model 257 with engine 256, 264

AR42.20-P-0600FR

12

Unclip electric line of rear axle damping valve unit from holder at wheel carrier(7) and holder at wheel arch.

13

Lower wheel carrier(7).

 Installation: Lift up wheel carrier(7) until rear axle shaft(37) is almost horizontal.

14

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

If the rear axle shaft(37) is firmly seated:



Press rear axle shaft (37) out of rear axle shaft flange.

Model 290 with engine 256

AR35.30-P-0115-03MNI

Model 257 with engine 256, 264

AR35.30-P-0115-03MSA

 Extraction and insertion tool

*210589034300

 Bracket

*210589014000

15

Pry rear axle shaft(37) out of rear axle differential(50).

 Do not rest the assembly lever on the protective ring (37a). Support assembly lever, e.g. using socket wrench on rear axle differential(50).

16

Remove rear axle shaft(37).

 Installation: Replace locking ring (37o) on inner spline profile.

17

Check constant velocity joints.

If axial or radial play is present:



Replace rear axle shaft (37).

18

Check boots(37m).

If damage or leaks are present:



Replace the boot (37m) concerned.

AR35.30-P-0662-01MSA

 Filling capacity for joint housing

*BF35.30-P-1001-01G

19

Check side radial shaft sealing ring in rear axle differential(50).

If damage or leaks are present:



Replace side radial shaft sealing ring on rear axle differential (50).

AR35.30-P-4651MSA

20

Install in the reverse order.

21

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

AR35.31-P-0520-08MSA

 Model 290 with engine 256Rear axle differential filling capacity

*BF35.31-P-1001-02G

 Model 257 with engine 256, 264Filling capacity

*BF35.31-P-1001-02E

 Oil filler screw of rear axle differential

*BA35.31-P-1002-02H

Loctite 7063 (400 ml) cleaning spray

*BR00.45-Z-1046-04A

Sealant, Omnifit 100H (50 g)

*BR00.45-Z-1061-01A

22

Perform chassis alignment.

Model 290 with engine 256

AR40.20-P-0200FRX

Model 257 with engine 256, 264

AR40.20-P-0200FR

 Rear axle stabilizer bar

Number

Designation

Model 290

BA32.35-P-1002-03C

Screw, torsion bar linkage to wheel carrier

Nm

50

 Camber strut

Number

Designation

Model 257

Model 290

BA35.20-P-1002-02L

Bolt, camber strut to wheel carrier

Stage 1

Nm

50

50

Stage 2

°

90

90

 Strut rod

Number

Designation

Model 257

Model 290

BA35.20-P-1002-03N

Bolt, strut rod to wheel carrier

M12

Stage 1

Nm

50

50

Stage 2

°

90

90

 Tie rod

Number

Designation

Model 257

Model 290

BA35.20-P-1002-04M

Self-locking nut, tie rod to rear axle carrier

When removing the tie rod

Stage 1

Nm

50

50

Stage 2

°

90

90

When adjusting the toe

Nm

110

110

 Thrust arm

Number

Designation

Model 257

Model 290

BA35.20-P-1002-05L

Bolt, thrust arm to wheel carrier

Stage 1

Nm

50

50

Stage 2

°

90

90

 Rear axle shaft

Number

Designation

Model 257

BA35.30-P-1001-01N

Nut, rear axle shaft to wheel bearing

Nm

350

 Rear axle shaft

Number

Designation

Model 290 with engine 256

BA35.30-P-1001-01Q

Nut, rear axle shaft to wheel bearing

Stage 1

Nm

200

Stage 2

°

30

 Rear axle differential housing

Number

Designation

Model 257

Model 290 with engine 256

BA35.31-P-1002-02H

Oil filler screw of rear axle differential

Nm

50

50

 Rear axle shaft, plugged in shafts

Number

Designation

Model 257
plugged-in shafts

Model 290
Plugged in shafts

BF35.30-P-1001-01G

Filling capacity for joint housing

Ø82

g

80

80

Ø95

g

100

100

Ø102

g

120

120

Ø106

g

130

130

Ø112

g

140

140

Ø116

g

150

150

 Rear axle gear

Number

Designation

Model 257

BF35.31-P-1001-02E

Filling capacity

ALU rear axle differential 183

Liter

0,8

Sheet

BB00.40-P-0239-71A

ALU rear axle differential 197

Liter

0,9

Sheet

BB00.40-P-0239-71A

ALU rear axle differential 205

Liter

1,0

Sheet

BB00.40-P-0239-71A

 Rear axle gear

Number

Designation

Model 290

BF35.31-P-1001-02G

Rear axle differential filling capacity

FE rear axle differential 215

Liter

1,10

Rear axle differential 228

Liter

1,68

Specified gear oils - overview

BB00.40-P-0231-01A

Approved axle gear oils

BB00.40-P-0235A

Repair materials

Number

Designation

Order number

BR00.45-Z-1046-04A

Loctite 7063 (400 ml) cleaning spray

A 001 986 71 71 09

BR00.45-Z-1061-01A

Sealant, Omnifit 100H (50 g)

A 002 989 23 71