Remove/install engine electric heater booster control unit

AR20.10-S-3160EF

Remove/install engine electric heater booster control unit

17.09.2019

Model

447 with engine 622.9

1

Electrical connection

2

Nut

N152

Water heater control unit

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

 

Remove/install

1

Disconnect battery ground line

AR54.10-S-0003E

2

Remove air filter housing

AR09.10-S-1150EF

3

Separate electrical connections (1)

4

Unscrew nuts (2)

 M5

*BA00.10-N-1001-01A

5

Remove water heater control unit (N152)

6

Install in the reverse order



Check

7

Connect diagnostic system and read out fault memory; delete if necessary



Connect STAR DIAGNOSIS and read out fault memory

AD00.00-S-2000-04E

 Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number

Designation

8.8

10.9

BA00.10-N-1001-01A

M5

Galvanized

Nm

6

8

Phosphated

Nm

5

7

 Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number

Designation

12.9

BA00.10-N-1001-01A

M5

Galvanized

Nm

9

Phosphated

Nm

9