Remove/install rear axle differential control unit

AR35.30-P-0004MFG

Remove/install rear axle differential control unit

06.03.2020

Model

118, 177, 247 with engine 139

Shown on model 177

1

Electric line

5

Electrical connector

2

Heat shield

N15/20

Left rear axle differential control unit

3

Bolts

N15/21

Right rear axle differential control unit

4

Bolts

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

 

Remove/install

1

Commission left rear axle differential control unit (N15/20) or right rear axle differential control unit (N15/21).

When replacing left rear axle differential control unit (N15/20) or right rear axle differential control unit (N15/21).



AD00.00-P-2000-06MFA

2

Lift vehicle with vehicle lift.

AR00.60-P-1006A

3

Remove electric line (1) from heat shield (2).

If the right rear axle differential control unit (N15/21) is removed.


Do not kink or stretch the electric line (1).
Otherwise damage will occur.

 Dismantling tool

*000589956300

4

Unscrew screws (3) and remove heat shield (2).

If the right rear axle differential control unit (N15/21) is removed.

 M61

*BA00.10-P-1002-04A

5

Clean working area.

Assembly cleaner

*BR00.45-Z-1028-04A

6

Release and disconnect electrical connector (5) from left rear axle differential control unit (N15/20) or right rear axle differential control unit (N15/21).

7

Remove screws (4) from left rear axle differential control unit (N15/20) or right rear axle differential control unit (N15/21).

 Screw, rear axle differential control unit to rear axle differential

*BA35.31-P-1008-07A

8

Remove left rear axle differential control unit (N15/20) or right rear axle differential control unit (N15/21).

 Installation:
The guides of the left rear axle differential control unit (N15/20) or right rear axle differential control unit (N15/21) must engage in the groove of the drive shaft for the left clutch or right clutch.
Otherwise damage will occur.

9

Install in the reverse order.

 Metric screws/bolts and nuts as per MBN 10 105, 10 143

Number

Designation

8.8

10.9

BA00.10-P-1002-04A

M61

Nm

9

13

 Rear axle gear

Number

Designation

Model 118

Model 177

BA35.31-P-1008-07A

Screw, rear axle differential control unit to rear axle differential

Nm

27

27

 Rear axle gear

Number

Designation

Model 247

BA35.31-P-1008-07A

Screw, rear axle differential control unit to rear axle differential

Nm

27

Repair materials

Number

Designation

Order number

BR00.45-Z-1028-04A

Assembly cleaner

A 000 986 56 01