Genuine BMW 330i Fuel Injector

BMW 330i Fuel Injector Parts Questions & Experts Answers

• Fuel Injector
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  Q: How to remove and install fuel injectors and Fuel Rail on BMW 330i?

  A: To disconnect the negative battery cable, relieve fuel system pressure, and remove the engine cover, strut tower cross brace, and sound insulator. Remove ignition coils and high pressure fuel line. Disconnect the electrical connector to the high pressure sensor and loosen the high-pressure fuel pipe unions. Loosen fuel rail bolts and rotate the fuel rail to clear the injectors. Disconnect the electrical connectors from the injectors and remove the ground wire. Remove the hold-down elements and clean the area. Remove the injectors from the cylinder head and place plastic caps over each. Remove the coupling element from each injector and cut the Teflon ring. Clean the injector nozzle and install new Teflon rings if reusing the injectors. Program the adjustment values for new injectors. Install the injectors and tighten the coupling element bolts. Reconnect the high-pressure pipe unions. Tighten the injector clamp bolts and T-shaped coupling element mounting bolts. Reinstall the high-pressure Fuel Pump lines, ignition coils, and remaining components. For the 3.0L engine, remove the plastic cover, disconnect the fuel feed pipe, and remove the electrical connector strip. Remove the fuel rail and injectors as an assembly. Lubricate the fuel injector O-rings and install them to the fuel rail with the clips. Reverse the removal steps.