Remove/install pump module intake filter

AR14.40-B-2040A

Remove/install pump module intake filter

24.10.2019

Engine

924.9 in model 368, 384.0/2, 685.282/284/289/290, 979.2

Engine

926.9 in model 368, 382.17/18, 384.0

1

housing cover

5

Fixed wrench

9

Drawing filter

2

Electrical connector

6

Fixed wrench

10

Sealant

3

AdBlue pipe

7

Pump module

11

AdBlue inlet nozzle

4

Hoses

8

Screw (M4x40)

12

Filter sieve in the inlet nozzle

 

Remove/install

 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

Notes on use, material properties and handling of AdBlue®

AH14.40-N-0001-01A

1

Turn off ignition

2

Detach the electric connector (2) in the pump module (7)


The electrical connector (2) and the wiring harness must not contact the AdBlue,
otherwise, it may damage the electrical connector (2) and the pump module (7).

 Protect the electric connector (2) using a plastic film or something similar to avoid AdBlue flow out.

3

Check the electrical harness for corrosion

4

Remove the AdBlue piping (3) in the AdBlue inlet nozzle (11) and cover it with a seal (10)



End cap for AdBlue(R) intake duct and AdBlue(R) feed line

WF58.50-B-1440-05A

 The seal (10) must be ready, because immediately after detaching the AdBlue piping (3), the AdBlue liquid will flow out.

 Replace the O-ring

5

Remove the housing cover (1)

 Valid only for vehicles with pump module (7), where the hex of the filter sieve housing in the inlet nozzle (12) is not externally but behind the housing.

 .Pump module housing cover

*BA14.40-B-1047-02B

6

Remove AdBlue inlet nozzle (11) from filter sieve in inlet nozzle (12)

 To remove the AdBlue inlet nozzle (11), hold it with an open-end wrench (6) by the nozzle filter sieve (12).

 .Internal suction valve connection (intake opening to filter housing)

*BA14.40-B-1045-02B

7

Remove the suction filter (9) from the inlet nozzle filter sieve (12)

 The suction filter (9) can be extracted with a screw (M4X40) (8).

 Installation: Carefully insert the suction filter (9) into the inlet nozzle filter sieve (12) until the suction filter collar (9) is seated.

8

Install in reverse order

 Exhaust gas after-treatment

Number

Designation

Engine 924.9, 926.9 except Liquid Only

BA14.40-B-1045-02B

Internal suction valve connection (intake opening to filter housing)

Nm

15

 Exhaust gas after-treatment

Number

Designation

Engine 924.9, 926.9 except Liquid Only

BA14.40-B-1047-02B

Pump module housing cover

Nm

8