BMW M3 2021-present

BMW M3 2021-present Fuel System Specifications

Explore the detailed fuel system specifications for the 2021-Present BMW M3, including fuel type requirements, system components, and maintenance tips. This guide is essential for technicians and enthusiasts.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the fuel specifications for the 2021-Present BMW M3, 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.

How to Use

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

Navigate through the fuel documentation sections using the table of contents or by scrolling through the document. Each major section is clearly labeled for easy access.

Key Specifications

Fuel Tank Capacity

15.6 gallons (59 liters)

Octane Rating

91 AKI (minimum)

Fuel Pressure

200 bar (2900 psi)

CO2 Emissions

227 g/km (combined)

Fuel Economy (Combined)

19 mpg (12.4 L/100 km)

Available Specifications

Fuel Requirements

This section outlines the fuel type, octane rating, and additives required for the 2021-Present BMW M3 to ensure optimal performance and engine longevity.

Recommended Fuel Type

Premium unleaded gasoline with a minimum octane rating of 91 AKI (Anti-Knock Index)
For enhanced performance, use gasoline with an octane rating of 93 AKI or higher
Do not use gasoline with methanol content exceeding 10%
Avoid using diesel or E85 ethanol blends, as they are incompatible with the engine

Fuel Additives

BMW recommends using Top Tier Detergent Gasoline to maintain fuel system cleanliness
Avoid aftermarket fuel additives unless approved by BMW
Regular use of approved additives can prevent carbon buildup in the engine
Ensure additives do not exceed the manufacturer's recommended concentration

Note: Using non-recommended additives may void the vehicle's warranty.

Fuel System Components

This section details the key components of the BMW M3's fuel system, including the fuel tank, fuel pump, and injection system.

Fuel Tank

Fuel tank capacity: 15.6 gallons (59 liters)
Constructed from high-strength, corrosion-resistant materials
Equipped with a dual-stage fuel pump for consistent fuel delivery
Includes a fuel level sensor for accurate fuel gauge readings

Fuel Injection System

Direct fuel injection system with high-pressure injectors
Maximum fuel pressure: 200 bar (2900 psi)
Precision-engineered injectors for optimal fuel atomization
Integrated with the engine control unit (ECU) for real-time adjustments

Note: The direct injection system enhances fuel efficiency and reduces emissions.

Fuel Efficiency and Emissions

This section provides information on the BMW M3's fuel efficiency, emissions standards, and environmental impact.

Fuel Efficiency

City fuel economy: 16 mpg (miles per gallon)
Highway fuel economy: 23 mpg
Combined fuel economy: 19 mpg
Fuel consumption rate: 12.4 L/100 km (combined)

Emissions Standards

Complies with Euro 6d and ULEV (Ultra Low Emission Vehicle) standards
Equipped with a catalytic converter and particulate filter
CO2 emissions: 227 g/km (combined)
NOx emissions reduced by 80% compared to previous models

Note: The vehicle's emissions system is designed to meet stringent global environmental regulations.

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Component Specifications

Fuel Type

Recommended Fuel: Premium unleaded gasoline (91 AKI or 95 RON minimum)

Alternative Fuel: Mid-grade unleaded gasoline (89 AKI or 93 RON minimum)

Ethanol Content: Up to 10% ethanol (E10)

Note: Using fuel with higher ethanol content may void warranty

Fuel Tank

Capacity: 15.6 gallons (59 liters)

Material: High-density polyethylene (HDPE)

Part Number: 16117359901

Pressure Rating: 3.0 bar (43.5 psi)

Safety Valve: Opening Pressure: 3.5 bar (50.8 psi)
Part Number: 16117183745

Fuel Pump

Type: Electric in-tank fuel pump

Flow Rate: 200 liters per hour (LPH) at 5 bar (72.5 psi)

Operating Pressure: 5.0 bar (72.5 psi)

Part Number: 16148658732

Voltage: 12V DC

Current Draw: 8.5A max

Fuel injectors

Type: Direct injection (DI)

Flow Rate: 20.5 cc/min at 3.0 bar (43.5 psi)

Part Number: 13537585263

Spray Pattern: Multi-hole, cone-shaped

Operating Pressure: 200 bar (2900 psi)

Tolerance: ±2% flow variation

Fuel Filter

Type: In-line fuel filter

Part Number: 13327707222

Filtration Rating: 10 microns

Replacement interval: Every 30,000 miles or 24 months

Pressure Drop: 0.5 bar (7.25 psi) max

Fuel Pressure Sensor

Type: High-pressure sensor

Part Number: 13627833021

Operating Range: 0-250 bar (0-3625 psi)

Accuracy: ±1% of full scale

Output Signal: 0.5-4.5V analog

Fuel Rail

Material: Stainless steel

Part Number: 13537585264

Pressure Rating: 250 bar (3625 psi)

Volume: 120 cc

Note: Includes integrated pressure sensor port

Fuel System Diagnostics

Error Codes

P0171 - System too lean
P0172 - System too rich
P0087 - Fuel rail/system pressure too low
P0088 - Fuel rail/system pressure too high

Diagnostic Tool: BMW ISTA or compatible OBD-II scanner

Pressure Test: Idle Pressure: 200 bar (2900 psi)
Tolerance: ±10 bar (145 psi)

Fuel System Maintenance

injector Cleaning: Recommended every 15,000 miles

Fuel Tank Cleaning: Inspect and clean every 60,000 miles

Fuel Filter Replacement: Every 30,000 miles or 24 months

Note: Use only BMW-approved fuel additives

Fuel System Safety

Fire Hazard: Avoid open flames or sparks near fuel system

Pressure Release: Depressurize system before servicing

Safety Equipment

Fire extinguisher (Class B)
Safety goggles
Gloves

Note: Follow BMW repair manual procedures for fuel system work

Fuel System Service Information Service

Detailed service requirements and schedules for the fuel system

15,000

Inspect fuel injectors
Check fuel pressure
Inspect fuel lines for leaks

Use BMW-approved diagnostic tools

30,000

Replace fuel filter
Clean fuel injectors
Inspect fuel pump

Follow torque specifications for fuel system components

60,000

Inspect and clean fuel tank
Replace fuel pressure sensor if necessary
Perform full fuel system diagnostic

Use only OEM parts for replacements

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of fuel is recommended for the 2021-Present BMW M3?

The 2021-Present BMW M3 requires premium unleaded gasoline with a minimum octane rating of 91 AKI (95 RON). For optimal performance, BMW recommends using fuel with an octane rating of 93 AKI (98 RON). Using lower octane fuel may result in reduced engine performance and efficiency.

Can I use ethanol-blended fuel in the BMW M3?

Yes, the BMW M3 can use ethanol-blended fuels containing up to 10% ethanol (E10). However, fuels with higher ethanol concentrations, such as E15 or E85, are not recommended as they can cause damage to the fuel system and engine components.

What is the fuel tank capacity of the BMW M3?

The 2021-Present BMW M3 has a fuel tank capacity of 15.6 gallons (59 liters). This capacity allows for a balance between performance and range, depending on driving conditions and style.

Does the BMW M3 have a fuel economy rating?

The BMW M3 has an EPA-estimated fuel economy of 16 mpg in the city and 23 mpg on the highway for the rear-wheel-drive (RWD) model. The all-wheel-drive (AWD) model has slightly lower ratings due to increased weight and drivetrain losses.

What happens if I use the wrong type of fuel in my BMW M3?

Using fuel with an octane rating lower than 91 AKI (95 RON) can lead to engine knocking, reduced performance, and potential long-term damage. Additionally, using fuels with ethanol concentrations higher than 10% can cause corrosion and damage to the fuel system. Always use the recommended fuel type to maintain engine health and warranty coverage.

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 M3 Owner's Manual

Coming Soon

The official owner's manual provides detailed information on fuel requirements, maintenance schedules, and safety precautions specific to the BMW M3.

BMW Fuel System Maintenance Guide

Coming Soon

A comprehensive guide on maintaining the fuel system, including tips on fuel additives, filter replacement, and troubleshooting common issues.

BMW Genuine Parts Catalog

Coming Soon

Access the official catalog for genuine BMW fuel system components, ensuring compatibility and optimal performance for your M3.

BMW Warranty Information

Coming Soon

Detailed information on BMW's warranty coverage, including how using non-recommended fuels or parts may affect your warranty.

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