Remove/install injection system control unit - AR07.08-P-7008OGR

ENGINE 642 in MODEL 166 

Fig 1: Identifying Injection System Control Unit Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
1	Read out variant coding using STAR DIAGNOSIS
		When replacing the CDI control unit (N3/9)	AD00.00-P-2000-04A
2	Detach right front wheel
			AP40.10-P-4050EW
3	Remove wheel housing lining in the right front fender		AR88.10-P-1300GQ
4	Disconnect electrical connectors on CDI control unit (N3/9)
5	Remove screw/bolts (3) and take CDI control unit (N3/9) out of bracket
6	Install in the reverse order
7	Read in variant coding using STAR DIAGNOSIS
		When replacing the CDI control unit (N3/9) Transfer the stored variant coding of the previously installed CDI control unit (N3/9) to the new CDI control unit (N3/9) using STAR DIAGNOSIS.	AD00.00-P-2000-04A
8	Start up CDI control unit (N3/9) using STAR DIAGNOSIS
		When replacing the CDI control unit (N3/9) The CDI control unit (N3/9) must be adjusted to the vehicle using STAR DIAGNOSIS, in menu item "Commissioning".	AD00.00-P-2000-04A
	Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
9	Carry out engine test run