BMW 750i 2001-2008 Fuel System Specifications
Comprehensive technical documentation for the 2001-2008 BMW 750i fuel system, including fuel type, pressure, injector specs, and maintenance guidelines. Ideal for technicians and BMW enthusiasts.
Overview Specifications
Comprehensive description of the fuel specifications for the 2001-2008 BMW 750i, including key features, measurements, and technical details. This section provides essential information on fuel requirements, system components, and performance specifications to ensure optimal vehicle operation.
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Use the search function to locate specific fuel specifications by entering keywords such as 'fuel type,' 'octane rating,' or 'fuel tank capacity.'
Navigate through the fuel documentation sections using the table of contents or by scrolling through the document. Each section is labeled with a title and includes detailed subsections for easy reference.
Key Specifications
Fuel Tank Capacity
22.5 gallons (85 liters)
Recommended Octane Rating
91 AKI (95 RON)
Fuel Pump Pressure
5.8 bar (84 psi)
City Fuel Consumption
15 mpg (15.7 L/100 km)
Highway Fuel Consumption
23 mpg (10.2 L/100 km)
Available Specifications
Fuel Type and Quality
This section covers the recommended fuel type, octane rating, and quality standards for the BMW 750i to ensure optimal engine performance and longevity.
Fuel Type and Quality
This section covers the recommended fuel type, octane rating, and quality standards for the BMW 750i to ensure optimal engine performance and longevity.
Recommended Fuel Type
- Use premium unleaded gasoline with an octane rating of 91 AKI (95 RON) or higher.
- Avoid using fuels with ethanol content exceeding 10% (E10).
- Do not use diesel or leaded gasoline, as they can cause severe engine damage.
- BMW recommends using Top Tier Detergent Gasoline for improved engine cleanliness.
Fuel Additives
- Avoid aftermarket fuel additives unless approved by BMW.
- BMW-approved additives can be used to maintain fuel system cleanliness.
- Using unapproved additives may void the vehicle warranty.
- Regular use of high-quality fuel reduces the need for additives.
Note: Consult your BMW service center for a list of approved fuel additives.
Fuel System Components
This section provides detailed information on the fuel system components, including the fuel tank, fuel pump, injectors, and filters.
Fuel System Components
This section provides detailed information on the fuel system components, including the fuel tank, fuel pump, injectors, and filters.
Fuel Tank Specifications
- Fuel tank capacity: 22.5 gallons (85 liters).
- Material: High-density polyethylene (HDPE) for durability and corrosion resistance.
- Includes an integrated fuel level sensor for accurate fuel monitoring.
- Designed to minimize fuel sloshing and improve stability.
Fuel Injectors
- Direct fuel injection system for precise fuel delivery.
- Injector flow rate: 200 cc/min at 3 bar pressure.
- Electronically controlled for optimal air-fuel mixture.
- Self-cleaning function to prevent clogging.
Note: Regular maintenance is required to ensure injector performance.
Fuel Consumption and Efficiency
This section outlines the fuel consumption rates and efficiency metrics for the BMW 750i under various driving conditions.
Fuel Consumption and Efficiency
This section outlines the fuel consumption rates and efficiency metrics for the BMW 750i under various driving conditions.
City Driving
- Average fuel consumption: 15 mpg (15.7 L/100 km).
- Fuel efficiency is influenced by stop-and-go traffic conditions.
- Idle fuel consumption: 0.5 gallons per hour (1.9 liters per hour).
- Eco Pro mode can improve city driving efficiency by up to 10%.
Highway Driving
- Average fuel consumption: 23 mpg (10.2 L/100 km).
- Cruise control can optimize fuel efficiency on long trips.
- Aerodynamic design reduces drag and improves mileage.
- Fuel efficiency peaks at speeds between 55-65 mph (88-105 km/h).
Note: Fuel consumption may vary based on driving habits and road conditions.
Fuel System Maintenance
This section provides guidelines for maintaining the fuel system to ensure reliable performance and prevent issues.
Fuel System Maintenance
This section provides guidelines for maintaining the fuel system to ensure reliable performance and prevent issues.
Fuel Filter Replacement
- Replace the fuel filter every 30,000 miles (48,000 km).
- Filter material: High-efficiency cellulose for optimal filtration.
- Located in the fuel tank for easy access during service.
- Symptoms of a clogged filter include reduced engine power and poor acceleration.
Fuel Pump Inspection
- Inspect the fuel pump every 60,000 miles (96,000 km).
- Pump pressure: 5.8 bar (84 psi) at idle.
- Check for unusual noises or fuel delivery issues.
- Replace the pump if pressure drops below 4.5 bar (65 psi).
Note: A failing fuel pump can cause engine stalling or failure to start.
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Component Specifications
Fuel Type
- Recommended Fuel
- Premium unleaded gasoline (91 AKI or 95 RON minimum)
- Alternative Fuel
- Regular unleaded gasoline (87 AKI or 91 RON) with reduced performance
- Ethanol Content
- Up to 10% ethanol (E10) allowed
- Octane Rating
- 91 AKI (Anti-Knock Index) minimum
- Notes
- Using lower octane fuel may cause engine knocking and reduced performance
Fuel Tank
- Capacity
- 23.8 gallons (90 liters)
- Material
- High-density polyethylene (HDPE)
- Part Number
- 16117183767
- Pressure Sensor
- Type: Integrated fuel tank pressure sensorPart Number: 16141180425Operating Pressure: 0.5 to 1.5 psi (3.4 to 10.3 kPa)
- Notes
- Tank includes an integrated fuel pump and level sensor
Fuel Pump
- Type
- Electric in-tank fuel pump
- Flow Rate
- 120 liters per hour (LPH)
- Operating Pressure
- 58 psi (400 kPa)
- Part Number
- 16146757269
- Voltage
- 12V DC
- Notes
- Pump includes a built-in fuel filter
Fuel Filter
- Type
- In-line fuel filter
- Part Number
- 13327541727
- Filter Material
- Synthetic fiber
- Micron Rating
- 10 microns
- Replacement interval
- Every 30,000 miles (48,000 km)
- Notes
- Located under the vehicle near the fuel tank
Fuel injectors
- Type
- Solenoid-operated multi-hole injectors
- Flow Rate
- 200 cc/min at 3 bar (43.5 psi)
- Part Number
- 13537585255
- Operating Pressure
- 43.5 to 58 psi (300 to 400 kPa)
- Spray Pattern
- Multi-hole conical spray
- Notes
- Injectors are controlled by the DME (Digital Motor Electronics) system
Fuel Rail
- Material
- Stainless steel
- Part Number
- 13537585256
- Operating Pressure
- 58 psi (400 kPa)
- Notes
- Includes integrated pressure regulator
Fuel Pressure Regulator
- Type
- Mechanical diaphragm regulator
- Part Number
- 13537585257
- Operating Pressure
- 58 psi (400 kPa)
- Location
- Integrated into the fuel rail
- Notes
- Maintains consistent fuel pressure to the injectors
Fuel System Diagnostics
- Diagnostic Tool
- BMW DIS or ISTA diagnostic software
- Error Codes
-
- P0171 - System too lean
- P0172 - System too rich
- P0181 - Fuel temperature sensor circuit range/performance
- P0191 - Fuel rail pressure sensor circuit range/performance
- Notes
- Diagnostic port located under the dashboard on the driver's side
Fuel System Maintenance
- inspection Interval
- Every 15,000 miles (24,000 km)
- Maintenance Items
-
- Check fuel lines for leaks or damage
- Inspect fuel pump operation
- Replace fuel filter as needed
- Check fuel injector spray pattern
- Notes
- Use only BMW-approved fuel system cleaners if necessary
Fuel System Safety
- Fire Hazard
- Highly flammable, keep away from open flames
- Pressure Warning
- Fuel system operates under high pressure, depressurize before servicing
- Ventilation
- Ensure proper ventilation when working with fuel components
- Notes
- Always disconnect the battery before servicing the fuel system
Service Information Service
Detailed service requirements and schedules for the fuel system
- Inspect fuel lines and connections
- Check fuel pump operation
- Inspect fuel injectors
Perform visual inspection for leaks or damage
- Replace fuel filter
- Check fuel pressure
- Inspect fuel tank and pressure sensor
Use only OEM parts for replacement
- Clean fuel injectors
- Inspect fuel rail and pressure regulator
- Check fuel system diagnostics for error codes
Perform a full system diagnostic if any issues are detected
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of fuel is recommended for the 2001-2008 BMW 750i?
What type of fuel is recommended for the 2001-2008 BMW 750i?
The 2001-2008 BMW 750i requires premium unleaded gasoline with an octane rating of 91 or higher. Using lower octane fuel may result in reduced performance and engine knocking.
Q2 What is the fuel tank capacity of the 2001-2008 BMW 750i?
What is the fuel tank capacity of the 2001-2008 BMW 750i?
The fuel tank capacity of the 2001-2008 BMW 750i is 22.5 gallons (85 liters). This allows for extended driving ranges between refueling.
Q3 Can I use ethanol-blended fuel in the 2001-2008 BMW 750i?
Can I use ethanol-blended fuel in the 2001-2008 BMW 750i?
Yes, the 2001-2008 BMW 750i can use ethanol-blended fuels containing up to 10% ethanol (E10). However, fuels with higher ethanol concentrations are not recommended as they may damage the fuel system components.
Q4 What is the fuel consumption rate for the 2001-2008 BMW 750i?
What is the fuel consumption rate for the 2001-2008 BMW 750i?
The 2001-2008 BMW 750i has an average fuel consumption of approximately 15 mpg in the city and 23 mpg on the highway, depending on driving conditions and maintenance.
Q5 How often should I replace the fuel filter on the 2001-2008 BMW 750i?
How often should I replace the fuel filter on the 2001-2008 BMW 750i?
The fuel filter on the 2001-2008 BMW 750i should be replaced every 30,000 to 50,000 miles or as specified in the vehicle's maintenance schedule. A clogged fuel filter can lead to poor engine performance and fuel delivery issues.
Q6 What are the symptoms of a failing fuel pump in the 2001-2008 BMW 750i?
What are the symptoms of a failing fuel pump in the 2001-2008 BMW 750i?
Symptoms of a failing fuel pump include difficulty starting the engine, sputtering at high speeds, loss of power under load, and an illuminated check engine light. Immediate inspection and replacement are recommended to avoid engine damage.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
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