Replace radial shaft sealing ring on drive pinion

AR35.31-P-0531MNC

Replace radial shaft sealing ring on drive pinion

23.07.2020

Transmission

725.0 in model 213

with code 700 (Vehicle production location China)

Modification notes

17.02.2019

Collar nut, joint flange to drive pinion

BA35.31-P-1001-06A

1

Rear axle gear

3

Joint flange

2

Propeller shaft

5

Radial shaft sealing ring

 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

 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

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A



Remove

1

Detach propeller shaft (2) from joint flange (3) of rear axle differential (1) and secure by suitable means to prevent it from falling.

AR41.10-P-0050LW



Measure

2

Measure friction torque on drive pinion and note down.

AR35.31-P-0530-04CWC

 Socket wrench bit

*204589010900

 Adapter

*100589025900

 Torque meter

*001589492100

3

Detach joint flange(3).

AR35.31-P-0550-06CWC

 Adapter

*100589025900

 Puller

*124589043300

 Pin wrench

*129589010700

 Socket wrench bit

*204589010900

4

Pry radial shaft sealing ring (5) out of rear axle differential (1) using suitable tool.


Do not damage the sitting surface of the radial shaft sealing ring (5).
Otherwise leaks will occur at the rear axle differential (1).



Clean

5

Clean seat of radial shaft sealing ring (5) in rear axle differential (1) using a clean, lint-free rag and assembly cleaner.


The seat of the radial shaft sealing ring (5) in the rear axle differential (1) must be free of oil and dirt.
Otherwise leaks will occur at the rear axle differential (1).


Assembly cleaner must not enter the rear axle differential (1).
Otherwise the rear axle differential (1) will be damaged.

Assembly cleaner

*BR00.45-Z-1028-04A



Check

6

Check seat of radial shaft sealing ring (5) in rear axle differential (1) for damage.

If damage is found,



Replace rear axle differential (1).

Transmission 725.0 in model 213 (except 213.088/089/288/289)
with code 700 (Vehicle production location China)

AR35.31-P-0522OLC



Install

7

Apply universal hypoid gear oil to sealing lip of new radial shaft sealing ring (5).



Universal hypoid gear oils (specification 235.7)

BB00.40-P-0235-07A

8

Install new radial shaft sealing ring (5) in rear axle differential (1) using drift.

 Drift

*204589001500

9

Adjust friction torque of drive pinion bearing.

AR35.31-P-0550-17CWC


It is essential to perform all operation steps listed in the description and to observe all instructions.
Otherwise there will be noise development and damage to the rear axle differential (1).

 Collar nut, joint flange to drive pinion

*BA35.31-P-1001-06A

 Torque meter

*001589492100

 Adapter

*100589025900

 Pin wrench

*129589010700

 Socket wrench bit

*204589010900

10

Attach propeller shaft (2) to joint flange (3) of rear axle differential (1).

AR41.10-P-0050LW



Check

11

Check oil level in rear axle differential (1) and correct if necessary.

Transmission 725.0 in model 213 (except 213.088/089/288/289)
with code 700 (Vehicle production location China)

AR35.31-P-0520-08OLC

 Oil filler screw of rear axle differential

*BA35.31-P-1002-02H

 Transmission 725.0 in model 213 (except 213.088/089/288/289)
with code 700 (Vehicle production location China)Filling capacity

*BF35.31-P-1002-02C

Loctite 7063 (400 ml) cleaning spray

*BR00.45-Z-1046-04A

Sealant, Omnifit 100H (50 g)

*BR00.45-Z-1061-01A

12

Check rear axle differential (1) for leak tightness.

 Rear axle differential gear set

Number

Designation

Model 213

BA35.31-P-1001-06A

Collar nut, joint flange to drive pinion

ALU rear axle differential 183

M26

Nm

120

ALU rear axle differential 197

M31

Nm

120

ALU rear axle differential 205

M31

Nm

120

Rear axle differential 200 C

M22

Nm

100

Rear axle differential 215

M29

Nm

130

 Rear axle differential housing

Number

Designation

Model 213

BA35.31-P-1002-02H

Oil filler screw of rear axle differential

Nm

50

 Rear axle gear

Number

Designation

Model 213 (except 213.088/089/288/289)
with code 700 (Vehicle production location China)

BF35.31-P-1002-02C

Filling capacity

Rear axle differential 200 C

Liter

1,0

Overview of specified transmission oils

BB00.40-P-0231-01A

References, approved axle gear oils

BB00.40-P-0235A

Repair materials

Number

Designation

Order number

BR00.45-Z-1028-04A

Assembly cleaner

A 000 986 56 01

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