Remove/install injection nozzle for exhaust aftertreatment system · ar1440w2000r · Mercedes-Benz WIS

AR14.40-W-2000R

Remove/install injection nozzle for exhaust aftertreatment system

22.3.11

ENGINES 926.9 in MODEL 949 with CODE (MS5) BlueTec 5

W14.40-1448-09

1 Air filter

2 Clip

3 Compressed-air line

7 Engine brake valve fitting

8 Injection nozzle

4 Engine brake cylinder

5 Shield

6 Injection line

 	Remove/install
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1	Disconnect battery ground line		AR54.10-W-0003A
2	Open engine hood and raise to vertical position		AR88.40-W-1000R
3	Remove air filter (1)		AR09.10-W-1050R
4	Remove air intake duct for fresh air intake		AR83.10-W-3220R
5	Remove clamp (2) from shield (5)	 Installation: Install washer below clamp (2).
			*BA09.40-N-1007-01B
6	Remove compressed-air line (3) from engine brake cylinder (4)
7	Remove shield (5)		*BA09.40-N-1007-01B
8	Remove injection line (6) for exhaust aftertreatment system	 Installation: The injection line (6) must be replaced after every removal.	AR14.40-W-2001R
9	Remove injection nozzle (8) from engine brake valve fitting (7)	 Installation: Check injection nozzle (8) and contact surface on engine brake valve fitting (7) for foreign objects and soiling, replace injection nozzle (8) if necessary.
			*BA14.40-N-1002-02C
10	Install in the reverse order

 Turbocharger

Number	Designation		Engine 924.9, 925.9, 926.9


BA09.40-N-1007-01B	Bolt, shield to turbocharger and engine brake valve fitting	Nm	25

 Exhaust aftertreatment, Blue Tec

Number	Designation		Engine 900.9, 902.9, 924.9, 925.9, 926.9 with code MS4 or code MS5


BA14.40-N-1002-02C	Injection nozzle on engine brake valve fitting/exhaust pipe	Nm	10