Glow Plug System: Service Precautions

Safety precautions

To prevent injuries to persons and/or damage to the Diesel direct fuel injection and glow plug system, observe the following:

- Switch OFF the ignition before connecting or disconnecting Diesel fuel injection or glow plug system wiring or test cables.

- If the engine requires cranking at starter speed, without starting, e.g. when checking compression, disconnect the N109 Fuel cutoff valve harness connector from the Diesel injection pump.

- Obtain the radio Anti-theft code from the customer BEFORE disconnecting the Battery Ground strap.

- Always make sure that the ignition is switched OFF before disconnecting and connecting the battery. Otherwise, the Diesel direct injection system Engine Control Module could be damaged.

Safety precautions during Test drives


WARNING!
Secure Scan Tool to rear seat and operate from this position using a second technician.


- Always attach Test and measuring instruments to the rear seat and operate them using a second technician from this location.

- If test and measuring instruments are operated from the front passenger's seat and the vehicle is involved in an accident, there is a possibility that the person sitting in this seat could receive serious injuries if the airbag is triggered.