Remove/install rear axle shaft

AR35.30-S-0620S

Remove/install rear axle shaft

26.11.2019

Model

636, 639

Shown without code (MA0) E-CELL 60 kW

37

Rear axle shaft

37/1

Rear axle shaft with additional mass

72

Semi-trailing arm

 

Remove/install

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system

AH00.00-Z-0300-01A

1

Operate parking brake

2

Lower vehicle at rear axle

Only with code CL0 (Rear lowerable and raisable air suspension)

3

Switch electronic level control to passive mode

Only with code CL0 (Rear lowerable and raisable air suspension)

4.1

Remove hubcap

Only except code RL5 (Light alloy wheels 6.5 J x 16) and except code RL8 (Light alloy wheels 7J x 17)

4.2

Remove wheel

Only with code RL5 (Light alloy wheels 6.5 J x 16) or with code RL8 (Light alloy wheels 7J x 17)

AR40.10-S-1100S

5

Remove wheel hub cover in center of light alloy rims

Only with code RL5 (Light alloy wheels 6.5 J x 16) or with code RL8 (Light alloy wheels 7J x 17)

6

Fit wheel

Only with code RL5 (Light alloy wheels 6.5 J x 16) or with code RL8 (Light alloy wheels 7J x 17)

AR40.10-S-1100S

 Two wheel bolts are sufficient.

 Installation: The wheel no longer needs to be detached.

7

Unscrew hexagon nut with collar from rear axle shaft (37)

AR35.30-S-0116-01S

 The vehicle must be in contact with the ground.

 Model 636, 639.### ## as of 457456
Model 639.### ## up to 457455Collar nut, wheel hub to rear axle shaft

*BA35.30-N-1001-01F

8

Release parking brake

9

Remove wheel

AR40.10-S-1100S

10

Remove rear axle differential

Only except code MA0 (E-CELL 60 kW)

AR35.31-S-0520S

 Lower rear axle differential to working height.

11

Press rear axle shaft (37) out of rear axle differential

Only without code MA0 (E-CELL 60 kW)

AR35.30-S-0620-02S

 Installation: The retaining ring must noticeably engage on the rear axle differential.

 Tires and assembly lever

*003589001600

12

Remove rear axle shaft (37) from wheel hub of semi-trailing arm (72)

 Secure rear axle shaft (37) against falling down, have a second person assist you. If the rear axle shaft (37) is stuck,

refer to:



Press rear axle shaft out of rear axle shaft flange

AR35.30-S-0115-02S

 Extraction and insertion tool

*210589034300



Check

13

Compare part number on semi-trailing arm (72) with part number of a new semi-trailing arm (72)

Only with engine 112 or with code (MC3) Engine OM 646 DE22 LA 110 KW (150 hp) 3800 rpm up to vehicle identification number 014629 when replacing rear axle shafts (37). Only with code (MC1) engine 646, 65 KW (88 hp) 3800 rpm or code (MC2) engine 646, 80 KW (109 hp) 3800 rpm up to vehicle identification number 014629 when replacing rear axle shafts (37) through rear axle shafts with additional mass (37/1).

 If the part numbers do not match, the wheel bearing must be replaced,


refer to:



Remove/install wheel bearing

AR35.20-S-0302S

14

Install in the reverse order

 Rear axle shaft

Number

Designation

Model 639.### ## up to 457455

Model 636, 639.### ## as of 457456

BA35.30-N-1001-01F

Collar nut, wheel hub to rear axle shaft

Stage 1

Nm

165

125

Stage 2

°

60

60