Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2013650I 2D COUPEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 28 (ENGINE CONTROLS - SYSTEM & COMPONENT TESTING)FUEL SYSTEMFUEL DELIVERYNOTES
2013 BMW 650i 2D Coupe
Fuel Delivery: Notes
2013 BMW 650i 2D CoupeSECTION Notes
WARNING: This page does not describe the selected car, but rather 37 other vehicles, including the 2005 BMW 760i, 2004 BMW 760Li, 2003 BMW Z8, 2003 BMW Z4, and 2003 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
For fuel system pressure testing, see BASIC DIAGNOSTIC PROCEDURES
article.
Before any service work is performed on any fuel system related component, always adhere to the following:
- Observe relevant safety legislation pertaining to your area.
- Ensure adequate ventilation.
- Use exhaust extraction system where applicable (alleviate fumes).
- Do not operate the fuel pump unless it is properly installed in the fuel tank and is submersed in the fuel (fuel lubricates the pump).
- Always wear adequate protection clothing including eye protection.
- Use caution when working around a hot engine compartment.
- During fuel system repair that involves "sealing rings" always replace them with new copper rings only.
- BMW does not recommend any unauthorized modifications to the fuel system. The fuel system is designed to comply with strict federal safety and emissions regulations.
- Fuel quality should always be considered when diagnosing a driveability complaint. The type of fuel, proper AKI rating, impurities and moisture are not factored by the ECM.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.