Remove/install exhaust temperature sensor downstream of exhaust gas recirculation cooler

AR14.20-S-1025E

Remove/install exhaust temperature sensor downstream of exhaust gas recirculation cooler

13.03.2020

Model

447 with engine 651

with code MB6 (Low-emission vehicle, Euro 6 Gr. 1)

Model

447 with engine 651

with code MR6 (Emissions category Euro 6c N1 GR.III/N2)

1

Temperature sensor

2

Electrical connector

 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

 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

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

 

Remove/install

1

Remove the exhaust gas recirculation line downstream of the exhaust gas recirculation valve.

AR14.20-S-1063E

2

Disconnect electrical connection (2).

3

Remove temperature sensor (1).

Note on calculation of tightening torque when using insertion or socket tools with various effective lengths

AH00.00-P-0015-01CW

 Seal off opening.

 Installation: Check temperature sensor (1) for damage.
Coat the thread of the temperature sensor (1) with heat-resistant lubricant.

Paste, hot lubrication 1 kg, DBL 6879.20

*BR00.45-Z-1005-06A

 Temperature sensor to exhaust gas recirculation valve

*BA14.20-N-1005-01H

 Record plug

*129589009100

 Box wrench bit

*000589690300

If damage is present:



Replace temperature sensor (1).

4

Install in the reverse order.

5

Read out the fault memory using the diagnostic unit.

If temperature sensor (1) was replaced.



Connect STAR DIAGNOSIS and read out fault memory

AD00.00-S-2000-04E

If stored fault codes exist,



Erase the fault memory.

6

Disconnect diagnostic unit.

If temperature sensor (1) was replaced.



Check

 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

7

Perform engine test run and check engine in the area of the temperature sensor (1) for leak tightness.

 Visual inspection only.

 Exhaust gas recirculation

Number

Designation

Engine 651 in model 447

BA14.20-N-1005-01H

Temperature sensor to exhaust gas recirculation valve

Nm

20

Repair materials

Number

Designation

Order number

BR00.45-Z-1005-06A

Paste, hot lubrication 1 kg, DBL 6879.20

A 000 989 76 51