Remove/install sensor unit of temperature sensors

AR07.04-S-0026PDA

Remove/install sensor unit of temperature sensors

25.10.2019

Model

470 with engine 699.304/305

1

Air intake hose

5

Hose

9

Electrical wiring harness

2

Charge air pipe

6

Clip

10

Retaining clips

3

Bracket

7

Heat shield

11

Temperature sensor

4

Nut

8

Bolts

10

Retaining clamp

15

Retaining clips

18

Temperature sensor

12

Sensor unit

16

Bracket

19

Nut

13

Nuts

17

Bracket

20

Electrical connector

14

Electrical wiring harness

 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

Switch off ignition and store transmitter key outside of transmission range (min. 2  m).

2

Remove air intake hose (1).

AR09.10-S-8030PD

 Plug openings.
Use clean rag.

3

Remove charge air pipe (2) downstream of exhaust gas turbocharger.

AR09.41-S-1333PD

 Plug openings.
Use clean rag.

4

Remove bracket (3).

 For this purpose, remove nut (4).

 M6

*BA00.10-N-1002-01A

5

Remove hose (5).

 For this purpose, release clamp (6).
Plug openings.

 Installation: Check hose (5) for damage.

 Record plug

*129589009100

 Hose clamp pliers

*454589003700

If damage is present:



Install new hose (5).

6

Remove heat shield (7).

 To do so, remove screws (8).

 Screw/bolt, heat shield to exhaust manifold

*BA09.40-N-1005-02PD

7

Remove electrical wiring harness (9) at retaining clips (10).

 Installation: Check retaining clips (10) for damage.

If damage is present:



Replace damaged retaining clip (10).

8

Remove temperature sensor (11).

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

AH00.00-P-0015-01CW

 To do so, remove nut.
Seal off opening.

 Installation: Apply heat-resistant lubricating paste to nut of temperature sensor (11).

 Commercially available devices/tools
14 mm open-end fitting with 9x12 mm square socket

 Temperature sensor upstream of exhaust gas turbocharger to exhaust manifold

*BA07.04-N-1005-02PS

Paste, hot lubrication 1 kg, DBL 6879.20

*BR00.45-Z-1005-06A

 Record plug

*129589009100

9

Remove sensor unit (12).

 For this purpose, remove nuts (13).

 M6

*BA00.10-N-1002-01A

10

Remove electrical wiring harness (14).

 For this purpose, remove electrical wiring harness (14) at retaining clips (15) and brackets (16, 17).

 Installation: Check retaining clips (15) and bracket (17) for damage.

If damage is present:



Replace damaged retaining clips (15) and/or damaged bracket (17).

11

Remove temperature sensor (18).

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

AH00.00-P-0015-01CW

 For this purpose, remove nut (19).
Seal off opening.

 Installation: Apply heat-resistant lubricating paste to nut (19) of temperature sensor (18).

 Commercially available devices/tools
14 mm open-end fitting with 9x12 mm square socket

 Temperature sensor, exhaust gas recirculation on exhaust gas recirculation line

*BA07.04-N-1006-02PS

Paste, hot lubrication 1 kg, DBL 6879.20

*BR00.45-Z-1005-06A

 Record plug

*129589009100

12

Remove sensor unit (12) with temperature sensors (11, 18).

 For this purpose, release and disconnect electrical connector (20).

 Sensor unit (12) and temperature sensors (11, 18) form a unit.

13

Install in the reverse order.

14

Read out fault memory.

If sensor unit (12) with temperature sensors (11, 18) will be replaced.



AD00.00-S-2000-06P

If existing faults are stored,



Erase the fault memory.



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

15

Check leaktightness in area of temperature sensors (11, 18) with the engine is running.

 Visual inspection only.

 Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number

Designation

8.8

10.9

BA00.10-N-1002-01A

M6

Galvanized

Nm

9

13

Phosphated

Nm

9

12

 Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number

Designation

12.9

BA00.10-N-1002-01A

M6

Galvanized

Nm

16

Phosphated

Nm

14

 Sensors

Number

Designation

Engine 699 in model 470

BA07.04-N-1005-02PS

Temperature sensor upstream of exhaust gas turbocharger to exhaust manifold

Nm

32

 Sensors

Number

Designation

Engine 699 in model 470

BA07.04-N-1006-02PS

Temperature sensor, exhaust gas recirculation on exhaust gas recirculation line

Nm

32

 Exhaust gas turbocharger, exhaust pipe, heat shield, exhaust manifold

Number

Designation

Model 470, 471 with engine 699

BA09.40-N-1005-02PD

Screw/bolt, heat shield to exhaust manifold

Nm

10

Repair materials

Number

Designation

Order number

BR00.45-Z-1005-06A

Paste, hot lubrication 1 kg, DBL 6879.20

A 000 989 76 51