Remove/install injection nozzle of exhaust gas aftertreatment system

AR49.20-G-2003DD

Remove/install injection nozzle of exhaust gas aftertreatment system

08.08.2019

Engine

900.92, 902.93, 924.93, 926.95/97 in model 000.001

with BlueTec

Engine

925.9 in model 000.001

with BlueTec

Shown on engine 900.92

1

Injection line

2

Heat shield

3

Injection nozzle

 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 and scalding when working at AdBlue lines and the components attached to them. Risk of injury to skin and eyes when handling AdBlue. Risk of poisoning caused by swallowing AdBlue

Pour AdBlue into suitable containers only. Wait until the pressure is released before starting any work on the exhaust aftertreatment system.

AS14.40-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

Notes on use, material properties and handling of AdBlue®

AH14.40-N-0001-01A

 

Remove/install

1

Remove injection line (1).

AR49.20-G-1061DD

 Installation: Replace injection line (1) after each removal.

2

Remove heat shield (2).

 Bolt, shield to turbocharger and flap fitting

*BA09.40-N-1007-01J

3

Remove injection nozzle (3).

 Seal bores with a suitable stop plug.

 Installation: Check contact surface at valve fitting for foreign bodies and contamination, clean if necessary.
Where it will be reused, clean injection nozzle (3) with a lint-free cleaning cloth.
In the installed state, the nozzle of the injection nozzle (1) must point to the exhaust pipe.

 Injection nozzle to valve fitting/exhaust pipe

*BA14.40-N-1002-02H

4

Install in the reverse order

 Turbocharger

Number

Designation

ENGINE 900.9, 904.9

ENGINE 902.9, 906.9

BA09.40-N-1007-01J

Bolt, shield to turbocharger and flap fitting

Nm

25

25

 Turbocharger

Number

Designation

Engine 924.9, 925.9, 926.9 in model 000.001

BA09.40-N-1007-01J

Bolt, shield to turbocharger and flap fitting

Nm

25

 Exhaust aftertreatment, BlueTec

Number

Designation

Engine 900.92, 902.93, 924.93, 925.9, 926.9 in model 000.001

BA14.40-N-1002-02H

Injection nozzle to valve fitting/exhaust pipe

Nm

10