Remove/install catalytic converter temperature sensor

AR07.04-D-0004R

Remove/install catalytic converter temperature sensor

09.04.2018

Engine

646 in model 909

Shown on vehicle with code MS9(Engine version EURO 4)

1

Electrical connector

2

Heat shield

B19

Catalytic converter temperature sensor

Shown on vehicle with code MP5 (Engine version Euro 5)

1

Electrical connector

2

Heat shield

B19

Catalytic converter temperature sensor

 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

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

 

Remove/install

1

Remove heat shield (2).

 Installation: Only install heat shield (2) after the leak test.

2

Raise vehicle.

AR00.60-D-1000F

3

Expose electric line of catalytic converter temperature sensor (B19).

 Installation: Replace cable tie if necessary.
Ensure that electrical line is routed correctly.

4

Release electrical connector(1) and disconnect.

5

Lower vehicle.

6

Unscrew union nut of catalytic converter temperature sensor (B19) and remove catalytic converter temperature sensor (B19).

 Installation: Coat thread with heat-resistant lubricating paste.

Paste, hot lubrication 1 kg, DBL 6879.20

*BR00.45-Z-1005-06A

 Temperature sensor to catalytic converter (oxidation catalytic converter)

*BA07.04-N-1007-01B

 Box wrench bit

*000589680300

7

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

8

Perform engine test run and check leak tightness in area of catalytic converter temperature sensor (B19).

 Sensors, transmitters

Number

Designation

Engine 646.7 in model 909

BA07.04-N-1007-01B

Temperature sensor to catalytic converter (oxidation catalytic converter)

Nm

45

Repair materials

Number

Designation

Order number

BR00.45-Z-1005-06A

Paste, hot lubrication 1 kg, DBL 6879.20

A 000 989 76 51