Remove/install complete rear axle

AR35.10-P-0010V

Remove/install complete rear axle

09.03.2020

Model

171, 172

Shown on model 171.442

1

Rear axle carrier

10

Parking brake cable

106b

Flex disk

4

Torsion bar

105c

Heat shield

X62/8

Rear axle electrical distributor electrical connector

9

Nuts

106

Propeller shaft

Shown on model 171.442

1c

Screw

3

Brake hose

9

Nut

1d

Screw

4

Torsion bar

10

Parking brake cable

2

Rear axle spring

6

Shock absorber

Shown on model 172 on the right side of the vehicle

3

Brake hose

11

Electrical connector

B22/10

Right rear level sensor

7

Electrical connector

12

Electric line

M76/1

Left electric parking brake actuator motor

8

Electric line

B22/7

Left rear level sensor

M76/2

Right electric parking brake actuator motor

 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

 Caution

Risk of poisoning from swallowing brake fluid. Risk of injury from skin and eye contact with brake fluid

Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.

AS42.50-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

 

Remove/install

1

Shift transmission into position N or neutral.

2

Secure vehicle on vehicle lift.

AR00.60-P-0100T

3

Switch off ignition and store transmitter key outside of transmission range (min. 2  m).

4

Remove shock absorbers (6) from body.

AR32.25-P-0110V

5

Remove propeller shaft (106) from rear axle differential.

AR41.10-P-0050V

 The flex disk (106b) remains on the propeller shaft (106).

6

Unhook cables of parking brake (10) from cable slack adjuster and unclip from mount.

Model 171

 Dismantling tool

*000589956300

7

Disconnect electrical connector (7) from electric parking brake actuator motor (M76/1, M76/2) and remove left and right electric line (8) from rear axle carrier (1).

Model 172

8

Disconnect electrical connectors of rear axle rpm sensors from rear axle electrical distributor electrical connectors (X62/8) and remove electric lines from frame floor assembly.

 Installation: Observe routing of electrical lines.

9

Disconnect electrical connector (11) from rear level sensor (B22/7, B22/10) and remove electric lines (12) from rear axle carrier (1).

Model 172
with code 483 (ADVANCED AGILITY package)

10

Unscrew nuts (9) and remove torsion bar (4) from frame floor assembly.

 Self-locking nut, torsion bar rubber mount to frame floor

*BA32.20-P-1007-04C

11

Remove rear axle spring (2).

AR32.20-P-0230V

12

Remove rear brake hoses (3) from the brake lines.

AR42.10-P-0013V

13

Attach guard plates.

AR42.00-P-0100-01A

 Guard plate

*220589013100

14

Support rear axle carrier (1) with telescopic lifter and assembly kit and secure.

 Assembly support

*140589016200

15

Remove screws (1c, 1d).


Do not use an impact wrench.
Otherwise, the threads will be damaged.

 Installation: Clean and recut thread in frame floor assembly using compressed air.

 Model 171Self-locking bolt, front rear axle carrier rubber bushing to frame floor

*BA35.10-P-1001-01A

 Model 171Self-locking bolt, rear axle carrier rear rubber bushing to frame floor

*BA35.10-P-1002-01A

 Model 172Self-locking bolt of front elastomer bearing on rear axle carrier to frame floor assembly

*BA35.10-P-1001-01N

 Model 172Self-locking bolt of rear elastomer bearing on rear axle carrier to frame floor assembly

*BA35.10-P-1002-01N

16

Lower rear axle.

 Installation: Check whether cavity preservation has been performed on the rear axle carrier (1).

If not,



perform cavity preservation.

AR35.10-P-0010-03A



000 588 01 72 00 Sealing and corrosion protection gun

WS97.00-N-0002B

Cavity preservation (free of solvents), 1 liter

*BR00.45-Z-1003-05A

17

Install in the reverse order

 Only tighten screws and nuts of chassis components in ready-to-drive condition.



Check

 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

18

Check oil level in rear axle differential.

Model 172.404/431/434/438/466

AR35.31-P-0520-08W

Model 171.442/445/454, 172.447/448
Model 171.456 as of 6/1/05, 171.458, 172.403/457
Model 171.456 up to 5/31/05
Model 171.473
Model 172.475
except code 471 (Manual locking differential)
Model 172.475
with code 471 (Manual locking differential)

AR35.31-P-0520-03V

 Model 171Oil filler screw, differential

*BA35.31-P-1002-02C

 Model 172Oil filler screw of rear axle differential

*BA35.31-P-1002-02H

 Model 171Filling capacity

*BF35.31-P-1001-01O

 Model 172Filling capacity

*BF35.31-P-1001-01T

Sealant, Omnifit 100H (50 g)

*BR00.45-Z-1061-01A

Loctite 7063 (400 ml) cleaning spray

*BR00.45-Z-1046-04A

19

Adjust parking brake.

Model 171.4

AR42.20-P-0540V



Check

20

Perform chassis alignment.

Model 171

AR40.20-P-0200V

Model 172

AR40.20-P-0200EW

21

Check and correct headlamp adjustment.



AP82.10-P-8260V

 Rear axle torsion bar

Number

Designation

Model 171

Model 172

BA32.20-P-1007-04C

Self-locking nut, torsion bar rubber mount to frame floor

Nm

23

23

 Rear axle carrier

Number

Designation

Model 171

BA35.10-P-1001-01A

Self-locking bolt, front rear axle carrier rubber bushing to frame floor

–

Nm

–

With Ø 24 mm bolted flange

Stage 1

Nm

–

Stage 2

°

–

With Ø 26 mm bolted flange

Stage 1

Nm

60

Stage 2

°

90

 Rear axle carrier

Number

Designation

Model 172

BA35.10-P-1001-01N

Self-locking bolt of front elastomer bearing on rear axle carrier to frame floor assembly

Stage 1

Nm

80

Stage 2

lösen

Stage 3

Nm

60

Stage 4

°

90

 Rear axle carrier

Number

Designation

Model 171

BA35.10-P-1002-01A

Self-locking bolt, rear axle carrier rear rubber bushing to frame floor

–

Nm

–

With Ø 24 mm bolted flange

Stage 1

Nm

–

Stage 2

°

–

With Ø 26 mm bolted flange

Stage 1

Nm

60

Stage 2

°

90

 Rear axle carrier

Number

Designation

Model 172

BA35.10-P-1002-01N

Self-locking bolt of rear elastomer bearing on rear axle carrier to frame floor assembly

Stage 1

Nm

80

Stage 2

lösen

Stage 3

Nm

60

Stage 4

°

90

 Rear axle differential housing

Number

Designation

Model 171.44/45

Model 171.473

BA35.31-P-1002-02C

Oil filler screw, differential

Nm

50

50

 Rear axle differential housing

Number

Designation

Model 172

BA35.31-P-1002-02H

Oil filler screw of rear axle differential

Nm

50

 Differential

Number

Designation

Model 171.44/45

Model 171.473

BF35.31-P-1001-01O

Filling capacity

Differential

187 FE, 187 mm dia.

Liter

0,95

–

dia. 198 mm

Liter

1,1

–

200 FE, 200 mm dia.

Liter

1,1

–

215 FE, 215 mm dia.

Liter

–

1,2

Sheet

BB00.40-P-0235-07A

BB00.40-P-0235-61A

 Rear axle gear

Number

Designation

Model 172 except AMG

Model 172.466

BF35.31-P-1001-01T

Filling capacity

Rear axle differential 183 FE, Ø 183 mm

Liter

0,80

0,80

Sheet

BB00.40-P-0235-07A

BB00.40-P-0235-07A

Rear axle differential 187 FE, Ø 187 mm

Liter

0,95

-

Sheet

BB00.40-P-0235-07A

-

Rear axle differential 200 FE, Ø 200 mm

Liter

1,1

-

Sheet

BB00.40-P-0235-07A

-

Rear axle differential 215 FE, Ø 215 mm

1,2

1,2

Sheet

BB00.40-P-0235-07A

BB00.40-P-0235-61A

 Rear axle gear

Number

Designation

Model 172.475

BF35.31-P-1001-01T

Filling capacity

Rear axle differential 183 FE, Ø 183 mm

Liter

-

Sheet

-

Rear axle differential 187 FE, Ø 187 mm

Liter

-

Sheet

-

Rear axle differential 200 FE, Ø 200 mm

Liter

-

Sheet

-

Rear axle differential 215 FE, Ø 215 mm

1,2

Sheet

BB00.40-P-0235-61A

Repair materials

Number

Designation

Order number

BR00.45-Z-1003-05A

Cavity preservation (free of solvents), 1 liter

A 000 986 72 70 10

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