Filling/bleeding fuel system

These requirements must be met in order to ensure proper bleeding/filling of fuel system.

Special tools and workshop equipment required

• Vehicle diagnostic tester

Proceed as follows to fill high-pressure pump / fuel system with fuel:

• Connect vehicle diagnostic tester.
• Start function “Fuel pump activation (filling/bleeding fuel system)” in Guided functions.

• Start engine and visually check fuel system for leaks.

• After filling fuel system and successfully starting engine, allow it to run for a few minutes at a moderate speed. Switch off engine.
• Check fuel system for leaks.
• Therefore, read the event memory and erase event entries if necessary.
• Then, road-test the vehicle for more than 20 km with full throttle acceleration at least once. Then check high-pressure part of fuel system again for leakage.

• Read event memory entries.