Check pump module of exhaust aftertreatment system for fuel/oil residues

AR14.40-B-2047B

Check pump module of exhaust aftertreatment system for fuel/oil residues

12.07.2019

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

AdBlue filter (pressure filter)

2

Test strips

A

Test strip without staining

B

Test strip with staining



Remove

1

Remove the AdBlue filter (1) from the pump module

.

AR14.40-B-2009A



Check

2

Vigorously rub the test strips (2) between plates of the AdBlue filter (1) and on the inner wall of the filter housing, as well as on the filter bowl



Service information: AdBlue tank filled with wrong fluid

.

SI14.40-B-0006A



If no stains appear on the test strip (2):



Proceed with the work step #6.

If the test strips (2) display color change, such as waste oil, diesel, solvents or other hydrocarbons in AdBlue:



Proceed with step 3.

3

Replace all AdBlue flexible hoses

4

Replace the pump module

.

AR14.40-B-2007A

5

Replace the AdBlue® tank

.

AR14.40-B-2014A

.

AR14.40-B-2014C



Install

6

Install the AdBlue filter (1) to the pump module

.

AR14.40-B-2009A