Replace rear radial shaft sealing ring

AR03.20-P-3003MNO

Replace rear radial shaft sealing ring

26.02.2020

Engine

176, 177 in model 167

Shown on engine 176

1

Bolts

2

Radial shaft sealing ring

3

Cover

 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

 Caution

Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil

Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.

AS18.00-Z-0001-01A

Topical note

Notes on threaded connections with aluminum screws/bolts

AH00.00-P-0006-01RM

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A



Remove

1

Remove integrated starter alternator(A79).

AR15.40-P-0003MNO

2

Remove bolts (1).

3

Remove radial shaft sealing ring(2) with cap(3).



000 588 00 84 00 Heat gun

WS54.00-P-0049B

 If necessary, heat cap(3) in the area of the sealing surfaces with a heat gun.

 The radial shaft sealing ring(2) and cap(3) form a unit and cannot be separated.



Check

4

Check crankshaft for galling and damage.

If damage is present,



Install new crankshaft.

Engine 176 in model 167

AR03.20-P-4351MNO

Engine 177 in model 167

AR03.20-P-4351MNP



Clean

5

Clean sealing surface on crankcase and oil pan.

AR01.00-P-0050-01A

Notes on application of flange sealants to seal major assemblies

AH00.00-P-0500-01MNE

Loctite 7200

*BR00.45-Z-1038-04A

Loctite 7063 (400 ml) cleaning spray

*BR00.45-Z-1046-04A



Install

6

Wet sealing lip of radial shaft sealing ring(2) with engine oil.



Specified engine oils for Cars, Vans (service) - Overview

BB00.40-P-0223-02A

 The radial shaft sealing ring(2) and cap(3) form a unit and must be replaced together.

7

Apply sealant to the cap(3).

Notes on distribution of sealant on crankcase end cover

AH01.40-P-1000-09MNA

Sealant, Loctite 5970, 50 ml

*BR00.45-Z-1013-01A

8

Using insertion device, install cover (3) with radial shaft sealing ring (2).

 Insertion tool

*273589004300

9

Remove insertion device.

 Insertion tool

*273589004300

10

Tighten screws(1).

Topical note

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

AH00.00-P-0020-01A

 Replace screws (1).

 Screw/bolt, rear of bottom half of crankcase to crankcase/oil pan

*BA01.40-P-1002-01ZA

11

Install integrated starter alternator(A79).

AR15.40-P-0003MNO



Check

12

Check engine oil level and correct if necessary.



Engine 176 in model 167

AP18.00-P-1812SKI



Engine 177 in model 167

AP18.00-P-1812DKI

 Warning

Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.

Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.

AS49.00-Z-0001-01A

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

13

Conduct engine test run while checking for proper operation of the engine.

14

Install lower engine compartment lining.

AR61.20-P-1105ME

15

Install upper engine cover.



Engine 176 in model 167

AP01.10-P-2405-01M



Engine 177 in model 167

AP01.10-P-2405-01E

 Crankcase, timing case cover, end cover

Number

Designation

Engine 176

Engine 177

BA01.40-P-1002-01ZA

Screw/bolt, rear of bottom half of crankcase to crankcase/oil pan

Aluminum screw/bolt

Stage 1

Nm

2

2

Stage 2

°

45

45

Steel screw/bolt

Nm

9

9

Repair materials

Number

Designation

Order number

BR00.45-Z-1013-01A

Sealant, Loctite 5970, 50 ml

A 003 989 98 20 10

BR00.45-Z-1038-04A

Loctite 7200

Henkel AG & Co. KGaA
http://www.loctite.de

BR00.45-Z-1046-04A

Loctite 7063 (400 ml) cleaning spray

A 001 986 71 71 09