Replace diffuser on exhaust aftertreatment system metering device

AR14.40-W-2043C

22.3.11

ENGINES 900.9 in MODEL 375.1, 970, 972, 975, 976 with CODE (MS4) BlueTec 4

ENGINES 900.9 in MODEL 375.1, 970, 972, 975, 976 with CODE (MS5) BlueTec 5

ENGINES 902.9 in MODEL 375.3, 950.5 /6, 952.5 /6, 953.6, 954.5, 957 with CODE (MS4) BlueTec 4

ENGINES 902.9 in MODEL 375.3, 950.5 /6, 952.5 /6, 953.6, 954.5, 957 with CODE (MS5) BlueTec 5

ENGINES 902.9 in MODEL 375.1, 970, 972, 974, 975, 976 with CODE (MS4) BlueTec 4

ENGINES 902.9 in MODEL 375.1, 970, 972, 974, 975, 976 with CODE (MS5) BlueTec 5

ENGINES 924.9 in MODEL 958.0, 970, 972, 974, 975, 976 with CODE (MS4) BlueTec 4

ENGINES 924.9 in MODEL 958.0, 970, 972, 974, 975, 976 with CODE (MS5) BlueTec 5

ENGINES 925.9 in MODEL 970, 972, 974 with CODE (MS4) BlueTec 4

ENGINES 925.9 in MODEL 970, 972, 974 with CODE (MS5) BlueTec 5

ENGINES 926.9 in MODEL 950.5 /6, 952.5 /6, 953.6, 954.5, 957, 958.2 with CODE (MS4) BlueTec 4

ENGINES 926.9 in MODEL 950.5 /6, 952.5 /6, 953.6, 954.5, 957, 958.2 with CODE (MS5) BlueTec 5

ENGINES 926.9 in MODEL 958.0 with CODE (MS4) BlueTec 4

ENGINES 926.9 in MODEL 958.0 with CODE (MS5) BlueTec 5

W14.40-1397-12

1 Compressed air pipe

2 O-ring (green)

3 Seal ring (permanently attached to diffuser)

4 Diffuser

5 Seal ring (permanently attached to diffuser)

6 O-ring (green)

7 Dosing device housing

8 Bolts

R28 Heating element

	Replace
1	Remove metering device		AR14.40-W-2002C
2	Remove/install diffuser (4)	 The metering device must be free of contamination after removal in the area of mounting of the diffuser (4) otherwise this can lead to damage to the component.	AR14.40-W-2043-01A
		 AdBlue residues are to be removed using a lint-free cloth. The component must be swilled with clear water for large amounts and dried using compressed air.
			*BA14.40-N-1044-02C
			*BR00.45-Z-1019-06A
3	Install metering device		AR14.40-W-2002C

 Exhaust aftertreatment

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


BA14.40-N-1044-02C	Compressed air pipe to housing	Nm	6

Repair materials

Number	Designation	Order number
BR00.45-Z-1019-06A	ABS sensor grease	A 000 989 62 51 10