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 MANUALSBMW2011750LXI 4.4 CREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL SYSTEM - REPAIR
2011 BMW 750Lxi 4.4 C
Fuel System - Repair
2011 BMW 750Lxi 4.4 CSECTION Fuel System - Repair
- Safety
- Fuel Pump With Drive And Line
- 13 31 032 Check fuel pressure
- 13 31 029 Checking fuel delivery pressure
- 13 31... Notes regarding the fuel pressure test (reference pressure: surrounding area)
- The characteristic of this version with ambient pressure
- Test prerequisite
- When the measured value is less than the nominal value - 0.2 bar
- When the measured value exceeds the nominal value + 0.2 bar
- Attention
- If the measured value dropped by more than 0.5 bar
- The following faults may be present if the measured value now dropped less than 0.5 bar
- If the measured value dropped again by more than 0.5 bar
- Injection Pump, Regulator, Mixture Regulator
- Injection Nozzle And Lines
- 13 53 170 Removing and installing/replacing all pressure lines (N63)
- 13 53 310 Removing and installing/replacing an injector (N63)
- 13 53 332 Removing and installing/replacing feed line (N63)
- 13 53 205 Removing and installing/replacing left rail (N63)
- 13 53 208 Removing and installing/replacing right rail (N63)
- 13 53 594 Replacing fuel low-pressure sensor (N63)
- 13 53 602 Replacing left high-pressure fuel sensor (N63)
- 13 53 602 Replacing right high-pressure fuel sensor (N63)
- Throttle And Operation
- Sensor For Control Unit
- 13 62 560 Removing and installing/replacing left or right hot film air mass meter (N63 B40/B44 O 1)
- 13 62 591 Removing and installing/replacing pressure sensor on left charge air cooler (N63 B40/B44 O 0/1)
- 13 62 593 Removing and installing/replacing pressure sensor on left plenum chamber (N63)
- 13 62 592 Removing and installing/replacing pressure sensor on right charge air cooler (N63 B40/B44 O 0/1)
- 13 62 594 Removing and installing/replacing pressure sensor on right intake plenum (N63)
- 13 62 531 Replacing coolant temperature sensor (N63 B40/B44 O 0/1)
- Intake Silencer
- Air Cleaner
- Carbon Canister Ventilation
RENDER: 1.0x
NO RELATED
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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.