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⇒ “3.4 Fuel Injector (Piezo Injector), Removing and Installing”, page 315 3.3 Overview - Fuel System DANGER! ♦ Follow the safety precautions when working on the diesel direct fuel injection system. Refer to ⇒ “1 Safety Precautions when Working on Diesel Direct Fuel Injection System”, page 303 . ♦ Pay attention to the guidelines for clean working condi‐ tions. Refer to ⇒ “2 Guidelines for Clean Working Conditions”, Always pay attention to these instructions before and during work. Caution Follow the points below to avoid running the high pressure fuel pump dry and to start the engine quickly after replacing the components: ♦ If the fuel system components between the fuel tank and the high pressure fuel pump are removed or replaced, ♦ the basic setting “transfer fuel pump test” must be per‐ formed to vent the fuel system. ♦ If a fuel pump, fuel line (between the fuel tank and the high pressure fuel pump) or fuel filter is removed or replaced, ♦ the “transfer fuel pump test” basic setting must be per‐ formed »1 time« before starting the engine for the first time. ♦ If the high pressure fuel pump was removed or replaced, the “check the transfer fuel pump” basic setting must be performed »three times« before starting the engine for the first time. ♦ Fill the fuel tank after installing the high pressure pump. Refer to ⇒ “3.9 Fuel System, Filling/Bleeding”, page 328 . 3. Diesel Direct Injection System 311 |