Replace diffuser on exhaust aftertreatment system metering device

AR14.40-B-2043TB

12.02.16

Cumbustion engine 457 with Vehicle 958.434, 958.443, 958.441, 958.444, 958.453, 958.452, 958.454

Cumbustion engine 457.910 with Vehicle 958.431, 958.433, 958.451, 958.471, 958.472, 958.478

Cumbustion engine 457.911 with Vehicle 695.053, 695.023

Cumbustion engine 460.984 with Vehicle 934.### #R, 934.### #S

W14.40-1397-12

1 Compressed air tube

2 Sealing ring (green)

3 Sealing ring (fixed on diffuser)

4 Diffuser

5 Sealing ring (fixed on diffuser)

6 Sealing ring (green)

7 Metering unit housing

8 Bolts

R28 Heating element

	Replace
1	Remove the metering unit		AR14.40-B-2002TB
2	Remove and install the diffuser (4)	 The metering unit, after removal, has to be free of any impurity in the mounting area of the diffuser (4), otherwise this can lead to component damage.	AR14.40-B-2043-01TA
		 AdBlue residue has to be removed with a lint free cloth. In the case of large amount, the component has to be washed with clean water and dried with compressed air jets.
			*BA14.40-B-1044-02C
3	Install the metering unit		AR14.40-B-2002TB

Exhaust aftertreatment

Número	Denominação		Engine 457.9 with Code MS5


BA14.40-B-1044-02C	Compressed air pipe on housing	Nm	6