Remove/Install Diesel Fuel Injection System Control Unit - Ar07.08-D-7009WF

Engine 651.955/956/957 in model 906.### #N as of 678204 with code XM0 (Facelift) 

Engine 651.955/956/957 in model 906.### #P as of 294759 with code XM0 (Facelift) 

Shown without code E28 (Battery in addition to the retrofit consumer) 

Courtesy of MERCEDES-BENZ USA

-	Information on preventing damage to electronic components due to electrostatic discharge	-	AH54.00-P-0001-01A
	Remove/install
1	Connect diagnostic system, read out data of the CDI control unit (N3/28) and store	When replacing the CDI control unit (N3/28).	-
	-	-	AD00.00-D-2000-04SD
-	-	Transfer stored data to new CDI control unit (N3/28).	-
2	Switch off ignition and remove transmitter key	-	-
3	Remove the battery carrier	Model 906 with code E28 (Additional battery for retrofit consumer)	AR54.00-D-0002SD
4	Separate electrical connections (1)	To do this indent the catch of the respective lock lever (2) and open the respective lock lever (2) in direction of the arrow.	-
5	Remove CDI control unit (N3/28)	To do this open retaining clamps (3) and remove CDI control unit (N3/28) upwards.	-
6	Install in the reverse order