Fill the system with fuel using the manual priming pump (1) before filling transparent fuel lines (air is vented from the system automatically).
Check for fuel leaks.
Connect the diagnostic tool to the vehicle.
Deal with any problems that are present.
Note:
- Some faults prevent this check: deal with them first.
- The engine will automatically go through a cycle during which the engine speed will rise and fall four times to reduce rail pressure.
Attention! When checking, do not leave any objects on the edges of the engine compartment (strong vibration possible).
Run command AC 626 - high pressure circuit leak test.
Check for fuel leaks.
Eliminate the causes of leaks.
Check with a scan tool that there are no stored faults; process them if necessary and delete them from memory.
Disconnect the diagnostic tool.