Notes on avoiding damage to ignition system (Engine 272, 273) - AH15.10-P-0002-01V
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Engine 272, 273
- Before disconnecting the connector (R) at the ME-SFI [ME] control unit (N3/10), turn the key in the ignition switch (EIS [EZS] control unit) to the "0" position.
- Disconnect the battery before disconnecting the connector (L) at the ME-SFI [ME] control unit (N3/10).
- Install only original ignition system components.
Shown on engine 272
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
- Do not run the ignition system without fully connected lines or without the spark plug connector (a).
- Do not disconnect the connectors at the ignition coils (T1/1 to T1/8) at starting speed or when the engine is running.
- Do not take off the ignition coils (T1/1 to T1/8) from the spark plugs at starting speed or when the engine is running.
- Before working at starting speed, for example, check the compression pressure, turn the key in the EIS [EZS] control unit to the "0" position.