Replace connection fitting for sensors on exhaust aftertreatment unit

AR49.20-W-1002H

Replace connection fitting for sensors on exhaust aftertreatment unit

30.09.2019

Engine

470.9, 471.9, 473.9 in model 963, 964

1

Exhaust aftertreatment unit

5

Screw plug (N 000908 020004)

2

Connection fitting (for pressure line of pressure sensors (A 007 997 53 71))

6

Screw plug (N 000908 014009)

3

Connection fitting (for temperature sensors (A 007 997 52 71))

7

Nut (N 000000 005461)

4

Connection fitting (for NOx sensors (A 007 997 51 71))

 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

 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

 Danger

The high voltage used for electric welding presents a lethal hazard. Risk of explosion from welding in areas close to highly inflammable materials. Risk of injury from weld splatter and UV-light when welding. Risk of poisoning from inhaling welding gases

Use insulating mats. Wear protective clothing, safety glasses and a protective mask. Remove highly inflammable materials from the hazard area. Use air extraction system.

AS00.00-Z-0007-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

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

AH00.00-P-0015-01CW

General information and guidelines for welding on the exhaust aftertreatment unit

AH49.20-N-0001-01A

Replace

1

Remove exhaust gas aftertreatment unit.

Vehicles with code M5Z(Engine version Euro VI)

AR49.20-W-3000H

Vehicles with code M5R (Engine version, EEV) or code M5Y (Engine version Euro V)

AR49.20-W-3000HA

Vehicles with code M5C (engine version Euro VI, D) or code M5L (engine version Euro VI, version 2) or code M5M (engine version Euro VI with OBD-C)

AR49.20-W-3000HB

2

Replace connection fittings (2, 3, 4) of sensors at exhaust gas aftertreatment unit (1).

AR49.20-W-1002-01H

 The sensors and/or pressure line at rear face of exhaust gas aftertreatment unit (1) are shown here by way of example. All connection fittings (2, 3, 4) of the sensors and/or pressure lines at exhaust gas aftertreatment unit can however be replaced in this manner.
Exception: The connection fitting for the temperature sensor downstream of the diesel oxidation catalytic converter cannot be replaced.

 Exhaust temperature sensor to exhaust aftertreatment unit

*BA49.10-N-1004-02A

 NOx sensor to exhaust aftertreatment unit

*BA49.10-N-1005-02A

 Pressure line to exhaust aftertreatment unit

*BA49.10-N-1023-02A

Paste, hot lubrication 1 kg, DBL 6879.20

*BR00.45-Z-1005-06A

 Welding device

*963589022300

3

Install exhaust gas aftertreatment unit.

Vehicles with code M5Z(Engine version Euro VI)

AR49.20-W-3000H

Vehicles with code M5R (Engine version, EEV) or code M5Y (Engine version Euro V)

AR49.20-W-3000HA

Vehicles with code M5C (engine version Euro VI, D) or code M5L (engine version Euro VI, version 2) or code M5M (engine version Euro VI with OBD-C)

AR49.20-W-3000HB

 Exhaust system

Number

Designation

Engine 470.9, 471.9

Engine 473.9

BA49.10-N-1004-02A

Exhaust temperature sensor to exhaust aftertreatment unit

Nm

30

30

 Exhaust system

Number

Designation

Engine 470.9, 471.9

Engine 473.9

BA49.10-N-1005-02A

NOx sensor to exhaust aftertreatment unit

Nm

50

50

 Exhaust system

Number

Designation

Engine 470.9, 471.9

Engine 473.9

BA49.10-N-1023-02A

Pressure line to exhaust aftertreatment unit

Nm

12

12

Repair materials

Number

Designation

Order number

BR00.45-Z-1005-06A

Paste, hot lubrication 1 kg, DBL 6879.20

A 000 989 76 51