BMW 550i 2017-present

BMW 550i 2017-present Fuel System Specifications

Explore the detailed fuel system specifications for the 2017-Present BMW 550i, including fuel type, pressure, injector details, and pump requirements. Essential for technicians and enthusiasts.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the fuel specifications for the 2017-Present BMW 550I, including key features, measurements, and technical details

How to Use

Use the search function to locate specific fuel specifications by entering keywords such as 'octane rating', 'fuel capacity', or 'emission standards'.

Navigate through the fuel documentation sections using the table of contents or by scrolling through the document. Each section is labeled with a major title and subsections for easy reference.

Key Specifications

Fuel Type

Premium unleaded gasoline (91 AKI or higher)

Fuel Tank Capacity

18.0 gallons (68.1 liters)

Fuel Rail Pressure

2,900 psi (200 bar)

Combined Fuel Economy

24 mpg (9.8 L/100 km)

CO2 Emissions

230 g/km

Available Specifications

Fuel Type and Quality

Details about the recommended fuel type, quality standards, and octane ratings for optimal performance

Recommended Fuel Type

Premium unleaded gasoline with an octane rating of 91 AKI (Anti-Knock Index) or higher
Minimum octane rating of 89 AKI is acceptable but may reduce performance
Use of lower octane fuel may cause engine knocking and damage
Fuel must meet BMW-approved quality standards (e.g., TOP TIER Detergent Gasoline)

Fuel Additives

Avoid using fuel additives unless approved by BMW
Additives may interfere with the engine management system
BMW-approved additives are available for specific conditions
Do not use methanol-based additives

Note: Using unapproved additives may void the vehicle warranty.

Fuel System Specifications

Technical details about the fuel system, including capacity, pressure, and injection type

Fuel Tank Capacity

Total fuel tank capacity: 18.0 gallons (68.1 liters)
Reserve fuel capacity: 2.5 gallons (9.5 liters)
Fuel gauge accuracy: ±3% under normal operating conditions
Low fuel warning light activates at approximately 2.0 gallons (7.6 liters) remaining

Fuel Injection System

Direct fuel injection system with high-pressure injectors
Fuel rail pressure: 2,900 psi (200 bar)
Injector flow rate: 1,000 cc/min at 3,000 psi
System designed for precise fuel delivery and optimal combustion

Emission Standards and Efficiency

Information about emission compliance, fuel efficiency, and environmental impact

Emission Compliance

Complies with Euro 6 and ULEV (Ultra Low Emission Vehicle) standards
Equipped with a catalytic converter and oxygen sensors
Onboard diagnostics (OBD-II) monitor emission levels
Particulate filter reduces soot emissions

Fuel Efficiency

City fuel economy: 20 mpg (11.8 L/100 km)
Highway fuel economy: 30 mpg (7.8 L/100 km)
Combined fuel economy: 24 mpg (9.8 L/100 km)
CO2 emissions: 230 g/km

Note: Fuel efficiency may vary based on driving conditions and style.

Search Specifications

Search by specification name, value, or description

Component Specifications

Fuel Type

Recommended Fuel: Premium unleaded gasoline (91 AKI or higher)

Minimum Octane Rating: 89 AKI

Ethanol Content: Up to 10% ethanol (E10)

Alternative Fuels: Not compatible with E85 or diesel

Fuel System

Fuel Delivery: Direct injection

Fuel Pump Pressure: 5.8 bar (84 psi)

Fuel Tank Capacity: 18.5 gallons (70 liters)

Fuel Filter Part Number: 13 32 7 566 327

injector Part Number: 13 53 7 566 328

Fuel Quality

Sulfur Content: Maximum 10 ppm

Additives: BMW-approved fuel additives recommended

Contamination Tolerance: Less than 0.5% water content

Sediment Limit: Less than 1 mg per liter

Fuel Economy

City Mpg: 20 mpg

Highway Mpg: 30 mpg

Combined Mpg: 24 mpg

Co2 Emissions: 280 g/km

Fuel System Maintenance

Fuel Filter Replacement interval: Every 30,000 miles or 3 years

injector Cleaning Interval: Every 60,000 miles or 5 years

Fuel Tank Cleaning Interval: Every 100,000 miles or 10 years

Fuel Pump inspection Interval: Every 50,000 miles or 5 years

Fuel System Diagnostics

Obd2 Codes

P0171
P0172
P0174
P0175

Fuel Pressure Sensor Range: 0.5 to 7.5 bar

injector Flow Rate: 150 to 250 cc/min

Leak Detection Pressure: 0.5 bar (7.25 psi)

Fuel System Safety

Flash Point: -45°C (-49°F)

Fire Extinguisher Type: Class B

Fuel Line Material: Nitrile rubber with PTFE coating

Fuel Tank Material: High-density polyethylene

Fuel System Tolerances

Fuel Pressure Tolerance: ±0.2 bar

injector Spray Pattern: 15° cone angle

Fuel Flow Rate Tolerance: ±5%

Fuel Tank Vent Pressure: 0.1 to 0.3 bar

Fuel System Components

Fuel Pump Part Number: 16 14 7 566 329

Fuel Pressure Sensor Part Number: 13 62 7 566 330

Fuel Tank Cap Part Number: 16 11 7 566 331

Fuel Line Connector Part Number: 16 12 7 566 332

Fuel System Operational Limits

Maximum Fuel Temperature: 60°C (140°F)

Minimum Fuel Temperature: -40°C (-40°F)

Maximum Fuel Pressure: 7.5 bar (109 psi)

Minimum Fuel Pressure: 4.5 bar (65 psi)

Service Information Service

Detailed service requirements and schedules for the fuel system

30,000

Replace fuel filter
Inspect fuel lines for leaks
Check fuel pump pressure

Use only BMW-approved parts and fluids

60,000

Clean fuel injectors
Inspect fuel tank for contamination
Check fuel pressure sensor

Perform diagnostic scan for fuel system codes

100,000

120

Replace fuel pump if necessary
Clean fuel tank
Inspect fuel system for wear

Replace all worn components with OEM parts

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of fuel is recommended for the 2017-Present BMW 550i?

The BMW 550i requires premium unleaded gasoline with an octane rating of 91 AKI (95 RON) or higher. Using lower-octane fuel may result in reduced performance and engine knocking.

What is the fuel tank capacity of the BMW 550i?

The fuel tank capacity of the BMW 550i is 18.5 gallons (70 liters). This allows for a driving range of approximately 400-500 miles depending on driving conditions and fuel efficiency.

Can I use ethanol-blended fuel in the BMW 550i?

Yes, the BMW 550i is compatible with ethanol-blended fuels containing up to 10% ethanol (E10). However, fuels with higher ethanol concentrations (e.g., E15 or E85) are not recommended as they may cause engine damage and void the warranty.

What is the fuel economy of the BMW 550i?

The BMW 550i achieves an EPA-estimated fuel economy of 17 mpg in the city and 25 mpg on the highway. Actual mileage may vary based on driving habits, road conditions, and vehicle maintenance.

Does the BMW 550i have a fuel filter that requires regular replacement?

The BMW 550i is equipped with a lifetime fuel filter integrated into the fuel pump module. It does not require regular replacement under normal operating conditions. However, if fuel contamination is suspected, the filter should be inspected and replaced if necessary.

What should I do if I accidentally use the wrong type of fuel?

If you accidentally use fuel with an octane rating below 91 AKI or a high ethanol concentration, avoid driving the vehicle and contact a BMW-certified technician immediately. Running the engine with improper fuel can cause severe damage and void the warranty.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

BMW Fuel System Maintenance Guide

Coming Soon

Learn about proper fuel system maintenance, including fuel injector cleaning and fuel quality recommendations.

Understanding Octane Ratings and Fuel Types

Coming Soon

A detailed explanation of octane ratings, ethanol blends, and their impact on vehicle performance.

BMW Warranty and Fuel-Related Issues

Coming Soon

Information on how using improper fuel can affect your BMW warranty and what steps to take to avoid voiding it.

Fuel Efficiency Tips for BMW Vehicles

Coming Soon

Practical tips to maximize fuel efficiency and reduce fuel consumption in your BMW 550i.

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