Remove/install differential pressure sensor

AR07.04-P-0025OLC

Remove/install differential pressure sensor

08.06.2020

Engine

654.9 in model 213, 238, 257

2

Bracket

3

Electrical connector

4

Molded hoses

5

Snap clamp

6

Nuts

7

Crash plate

8

Heat shield

B28/8

Differential pressure sensor (DPF)

 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

 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

 

Remove/install

1

Remove upper engine cover.

AR01.10-P-2405OLC

 Installation: Only install upper engine cover after the leak test.

2

Remove crash plate (7).

3

Release and disconnect electrical connection (3).

4

Remove heat shield (8).

5

Open quick clamps (5) and remove molded hoses (4) from pressure lines.


Release only the quick clamps (5) of the molded hoses (4).
Releasing the clamps on the DPF differential pressure sensor (B28/8) can cause hairline cracks to form on the DPF differential pressure sensor (B28/8) thus leading to malfunctions.

 Installation: Install molded hoses (4) free of tension.

 Installation: Replace click clamps (5).

 Pliers for click clamps

*171589003700

6

Unscrew nuts (6) and remove bracket (2).

When installing new DPF differential pressure sensor (B28/8).

 Nut, differential pressure sensor for diesel particulate filter to bracket

*BA07.04-P-1007-02A

7

Install in the reverse order.

8

Read out and delete fault memory.



Engine 654.9 in model 238

AD00.00-P-2000-06LWO



Engine 654.9 in model 213

AD00.00-P-2000-04B



Engine 654.9 in model 257

AD00.00-P-2000-06FR

 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

9

Carry out engine test run and check engine for proper operation and leak tightness.

10

Install upper engine cover.

 Sensors

Number

Designation

Engine 654

BA07.04-P-1007-02A

Nut, differential pressure sensor for diesel particulate filter to bracket

Nm

8