ar4920s0025e

Remove/install exhaust gas aftertreatment system control unit

Type ar · topic 49.20 · version 0100 · 2019-11-13

Applies to: Engine 654.9 in model 447.8

Where it sits

Function group 1 Engine › 49 Exhaust system, exhaust gas cleaning › 49.20 Exhaust gas aftertreatment — Series 447 (models 8**) · Series 654 (models 9**)

EinPAS 15 Engine › 15.40 Exhaust system/exhaust aftertreatment › 15.40.11 Control unit/relay — Series 447 (models 8**) · Series 654 (models 9**)

AR49.20-S-0025E

Remove/install exhaust gas aftertreatment system control unit

29.10.2019

Engine

654.9 in model 447.8

Remove/install exhaust gas aftertreatment system control unit

S47.40-A000-79

1

Exhaust aftertreatment system control unit

3

Electrical connector

4

Bracket

2

Electrical connector

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on carrying out repair work in the vehicle interior

AH68.00-N-0001-01S

Remove/install

1

Switch off the ignition and keep the transmitter key outside the transmitter range (at minimum   2m).

2

Bring steering column into the uppermost position

3

Remove left cover under the dashboard

AR68.10-S-1500E

4

Remove exhaust gas aftertreatment system control unit (1) from the bracket (4) and remove in the direction of the arrow until the electrical connectors (2, 3) are accessible.

5

Disconnect electrical connectors (2, 3) and remove exhaust gas aftertreatment system control unit (1).

6

Install in the reverse order.

7

Fill NOx reducing agent tank.

If a new exhaust gas aftertreatment system control unit (1) is installed.

AR49.20-S-2015EA

8

Enter fill level of the NOx reducing agent tank in the exhaust gas aftertreatment system control unit (1).

If a new exhaust gas aftertreatment system control unit (1) is installed.

AD00.00-S-2000-04E

9

Read out and delete fault memory.

If a new exhaust gas aftertreatment system control unit (1) is installed.

AD00.00-S-2000-04E

Referenced documents