Remove/install diesel particulate filter

AR14.40-P-1000OLE

Remove/install diesel particulate filter

10.05.2017

Engine

651 in model 205, 253

with code 474 (Diesel particulate filter)

Shown on model 205

1

Diesel particulate filter

5

Clamp

2

Electrical line

6

Clamp

3

Temperature sensor upstream of diesel particulate filter

7

Pressure lines

4

Catalytic converter

8

Nuts

 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

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

 

Remove/install

1

Detach electrical line (2) of temperature sensor upstream of diesel particulate filter (3) from CAT (4)

2

Disconnect electrical connection for temperature sensor upstream of diesel particulate filter (3) at connecting point

3

Remove center and rear section of lower engine compartment paneling

AR61.20-P-1105LW

4

Unscrew union nuts and detach pressure lines (7) at diesel particulate filter (1)

 Union nut/retaining screw, pressure line to diesel particulate filter

*BA14.40-P-1001-01E

5

Remove clamps (5, 6)

 Installation: Align components of the exhaust system before tightening the clamps (5, 6) free of tension.

 Clamp, front exhaust system to catalytic converter/diesel particulate filter

*BA49.10-P-1005-02A

 Clamp, rear exhaust system to front exhaust system/rear exhaust system

*BA49.10-P-1011-02A

6

Unscrew nuts (8)

 Nut, bracket for diesel particulate filter to bracket for torque converter housing

*BA49.10-P-1015-02A

7

Pull diesel particulate filter (1) downward and out

 Installation: Install new sealing rings.

8

Detach temperature sensor upstream diesel particulate filter (3)

When replacing the diesel particulate filter (1).

AR07.04-P-0005OLD



Clean

9

Remove combustion and corrosion residue at separating points

10

Install in the reverse order



Check

11

Check installation position and unobstructed movement of all components of the exhaust system

 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

12

Carry out an engine test run and check exhaust system for leaktightness

13

Attach diagnostic system and reset load condition of the diesel particulate filter (1) in CDI control unit

When replacing the diesel particulate filter (1).



AD00.00-P-2000-04B

 Diesel particulate filter

Number

Designation

Model 117, 156, 172, 176, 204, 205, 207, 212, 218, 222, 246, 253 with engine 651

BA14.40-P-1001-01E

Union nut/retaining screw, pressure line to diesel particulate filter

Nm

20

 Exhaust system

Number

Designation

Engine 651 in model 205

Engine 651 in model 253

BA49.10-P-1005-02A

Clamp, front exhaust system to catalytic converter/diesel particulate filter

Nm

14

14

 Exhaust system

Number

Designation

Engine 651 in model 205

Engine 651 in model 253

BA49.10-P-1011-02A

Clamp, rear exhaust system to front exhaust system/rear exhaust system

Nm

22

22

 Exhaust system

Number

Designation

Engine 651 in model 205

Engine 651 in model 253

BA49.10-P-1015-02A

Nut, bracket for diesel particulate filter to bracket for torque converter housing

Nm

20

20