Remove/install diesel particulate filter

AR14.40-D-1000R

Remove/install diesel particulate filter

30.05.2018

Engine

646 in model 909

with code MS9 (Engine version Euro 4)

1

Clip

4

Pressure lines

7

Rubber retainers

2

Electrical connector

5

Main muffler

3

Hoses

6

Diesel particulate filter

 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

 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

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

 

Remove/install

1

Raise vehicle.

AR00.60-D-1000F

 Installation: Only lower vehicle fully after the leak test.

2

Release clamp (1) and push in the direction of the catalytic converter.

 Installation: Check clamp (1) for damage and replace if necessary.

 Pipe clamp, catalytic converter to diesel particulate filter

*BA14.40-N-1002-02D

3

Release and disconnect electrical connector (2) of the temperature sensor upstream of the diesel particulate filter (B19/12) from the underbody.

4

Unclip electric line of the temperature sensor upstream of the diesel particulate filter (B19/12) at heat shield.

 Installation: Ensure that electrical line is routed correctly.

5

Remove hoses (3) from the pressure lines (4).


Do not remove hoses (3) from diesel particulate filter differential pressure sensor (B28/8).
Otherwise, the diesel particulate filter differential pressure sensor (B28/8) will be damaged.

 Installation: Replace clamps for hoses (3) on pressure lines (4).

6

Remove exhaust system.

AR49.10-D-7140R

7

Remove diesel particulate filter (6) with main muffler (5) from the exhaust system.

 Installation: Check rubber retainer (7) for damage and cracks and replace if necessary.

 Installation: Ensure that diesel particulate filter (6) is seated correctly. The exhaust system must be installed free of tension; align exhaust system if necessary.

8

Remove temperature sensor upstream of the diesel particulate filter (B19/12).

When installing new diesel particulate filter (6).

AR07.04-D-0005R

9

Remove pressure lines (4).

When installing new diesel particulate filter (6).

 Nut/bolt, pressure line clamping plates

*BA14.40-N-1004-02D

 Union nut, pressure line to diesel particulate filter

*BA14.40-N-1003-02D

10

Install in the reverse order.



Check

 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

11

Perform engine test run and check exhaust system in the area of the diesel particulate filter (6) and the main muffler (5) for leak tightness.

 Exhaust aftertreatment

Number

Designation

Engine 646 in model 906, 909

BA14.40-N-1002-02D

Pipe clamp, catalytic converter to diesel particulate filter

Nm

35

 Exhaust aftertreatment

Number

Designation

Engine 646 in model 906, 909

BA14.40-N-1003-02D

Union nut, pressure line to diesel particulate filter

Nm

37

 Exhaust aftertreatment

Number

Designation

Engine 646 in model 906, 909

BA14.40-N-1004-02D

Nut/bolt, pressure line clamping plates

Nm

10