BMW 535i 2017-present Fuel System Specifications
BMW 535i 2017-present

BMW 535i 2017-present Fuel System Specifications

Detailed technical specifications and guidelines for the fuel system of the 2017-Present BMW 535I, including fuel type, pressure, injector details, and maintenance procedures. Essential for technicians and enthusiasts.

Updated

Overview Specifications

Comprehensive description of the fuel specifications for the 2017-Present BMW 535I, 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 'fuel type', 'octane rating', or 'fuel system pressure'.

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

Key Specifications

Fuel Type

Premium unleaded gasoline (91 AKI or higher)

Fuel Tank Capacity

18.5 gallons (70 liters)

High-Pressure Fuel Pump

2000-2900 psi (138-200 bar)

Fuel Injector Flow Rate

450-500 cc/min at 43.5 psi (3 bar)

Combined Fuel Economy

28 mpg

Available Specifications

Fuel Type and Quality

This section covers the recommended fuel type, octane rating, and fuel quality requirements for the BMW 535I.

Recommended Fuel Type
  • Use 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.
  • Do not use gasoline with more than 10% ethanol (E10).
  • Avoid using diesel or alternative fuels as they are incompatible with the engine.
Fuel Additives
  • BMW recommends using fuel additives only if approved by BMW.
  • Avoid using aftermarket additives that contain metal compounds.
  • Use additives specifically designed for direct injection engines.
  • Regular use of BMW-approved additives can help maintain fuel system cleanliness.

Note: Using unapproved additives may void the vehicle's warranty.

Fuel System Specifications

This section provides detailed technical specifications for the fuel system, including fuel pressure, injector flow rates, and system capacity.

Fuel System Pressure
  • High-pressure fuel pump operates at 2000-2900 psi (138-200 bar).
  • Low-pressure fuel pump delivers fuel at 72-87 psi (5-6 bar).
  • Fuel pressure is regulated by the engine control module (ECM).
  • Pressure sensors monitor fuel delivery to ensure optimal performance.
Fuel Injector Specifications
  • Injector flow rate: 450-500 cc/min at 43.5 psi (3 bar).
  • Injector spray pattern: 6-hole design for precise fuel atomization.
  • Injector operating voltage: 12V DC.
  • Injector pulse width is controlled by the ECM for optimal fuel delivery.

Fuel Tank and Capacity

This section details the fuel tank design, capacity, and related components.

Fuel Tank Capacity
  • Total fuel tank capacity: 18.5 gallons (70 liters).
  • Usable fuel capacity: 17.4 gallons (66 liters).
  • Reserve fuel capacity: 1.1 gallons (4 liters).
  • Fuel tank material: High-density polyethylene (HDPE) for durability.
Fuel Tank Components
  • Integrated fuel pump and level sensor assembly.
  • Fuel tank pressure sensor for evaporative emissions control.
  • Rollover valve to prevent fuel spillage in case of an accident.
  • Fuel filler neck with a capless design for easy refueling.

Fuel Economy and Emissions

This section provides information on fuel economy ratings and emissions compliance for the BMW 535I.

Fuel Economy Ratings
  • EPA-estimated city fuel economy: 24 mpg.
  • EPA-estimated highway fuel economy: 34 mpg.
  • Combined fuel economy: 28 mpg.
  • Real-world fuel economy may vary based on driving conditions.
Emissions Compliance
  • Complies with U.S. EPA Tier 3 and California LEV III emissions standards.
  • Equipped with a catalytic converter and oxygen sensors for emissions control.
  • Onboard diagnostics (OBD-II) monitor emissions-related components.
  • Particulate filter reduces soot emissions from the exhaust.

Note: Regular maintenance is required to maintain emissions compliance.

Component Specifications

Fuel Type

Recommended Fuel
Premium unleaded gasoline (91 AKI or higher)
Minimum Fuel
Regular unleaded gasoline (87 AKI)
Ethanol Content
Up to 10% ethanol (E10)
Notes
Using fuel with higher ethanol content may void warranty

Fuel System

Type
Direct injection
injection Pressure
200 bar
Fuel Pump Type
High-pressure electric fuel pump
Fuel Filter Part Number
13-32-7-581-786
Notes
Fuel filter is integrated into the fuel pump module

Fuel Tank

Capacity
18.5 gallons (70 liters)
Material
Plastic with integrated baffles
Fuel Level Sensor Part Number
16-14-7-581-345
Notes
Tank includes a rollover valve for safety

Fuel Pressure

Operating Pressure
5 bar (low-pressure side)
High Pressure Side
200 bar (direct injection)
Tolerance
+/- 10 bar
Notes
Pressure monitored by fuel rail pressure sensor

Fuel Economy

City
22 mpg
Highway
32 mpg
Combined
26 mpg
Notes
Based on EPA estimates for 2017 model year

Emissions

Emission Standard
Tier 3 Bin 30
Carbon Dioxide Emissions
250 g/mile
Evaporative Emissions System
Sealed system with charcoal canister
Notes
Includes onboard diagnostics (OBD-II) for emissions monitoring

Fuel Additives

Recommended Additives
  • BMW Fuel System Cleaner (part number 82-14-2-209-584)
Usage interval
Every 10,000 miles
Notes
Additives help maintain injector performance and reduce carbon buildup

Fuel Diagnostics

Common Codes
  • P0171 (System too lean)
  • P0172 (System too rich)
  • P0087 (Fuel Rail Pressure Low)
Diagnostic Tool
BMW ISTA+
Notes
Diagnostic codes can be read via OBD-II port

Safety information

Fire Hazard
Avoid open flames or sparks near fuel system
Fuel Spill Cleanup
Use absorbent materials and dispose of properly
Notes
Fuel system repairs should only be performed by qualified technicians

Maintenance

Fuel Filter Replacement interval
Every 60,000 miles
Fuel injector Cleaning Interval
Every 30,000 miles
Fuel Pump inspection Interval
Every 100,000 miles
Notes
Follow BMW-recommended maintenance schedule for optimal performance

Service Information Service

Detailed service requirements and schedules for the fuel system

10,000
12
  • Inspect fuel lines and connections
  • Check fuel pressure
  • Add fuel system cleaner

Perform visual inspection for leaks or damage

60,000
60
  • Replace fuel filter
  • Inspect fuel pump
  • Clean fuel injectors

Use BMW-approved parts and cleaning solutions

100,000
120
  • Inspect fuel tank for damage
  • Replace fuel level sensor if necessary
  • Check evaporative emissions system

Perform comprehensive fuel system diagnostics

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is recommended for the 2017-Present BMW 535i?

The 2017-Present BMW 535i requires premium unleaded gasoline with an octane rating of 91 or higher. Using lower octane fuel may result in reduced performance and potential engine knocking.

Q2

What is the fuel tank capacity of the BMW 535i?

The fuel tank capacity of the 2017-Present BMW 535i is 18.5 gallons (70 liters). This allows for a balance between range and vehicle weight.

Q3

Can I use ethanol-blended fuel in the BMW 535i?

Yes, the BMW 535i can use ethanol-blended fuels containing up to 10% ethanol (E10). However, fuels with higher ethanol content (e.g., E15 or E85) are not recommended as they may cause damage to the fuel system and engine components.

Q4

What is the fuel economy of the BMW 535i?

The 2017-Present BMW 535i achieves an EPA-estimated fuel economy of 22 mpg in the city and 32 mpg on the highway, with a combined rating of 26 mpg. Actual mileage may vary based on driving conditions and habits.

Q5

Does the BMW 535i require any fuel additives?

BMW does not recommend the use of fuel additives for the 535i. The vehicle's fuel system is designed to operate efficiently with high-quality gasoline. Using additives may void the warranty or cause damage to the engine.

Q6

What happens if I accidentally use diesel fuel in the BMW 535i?

Using diesel fuel in the BMW 535i, which is designed for gasoline, can cause severe engine damage. If this occurs, do not start the engine. Contact a BMW-certified technician immediately to drain and flush the fuel system.

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 Overview

Coming Soon

Detailed guide on the fuel system components and operation for the 2017-Present BMW 535i.

Fuel Quality and Performance

Coming Soon

Learn about the importance of using high-quality fuel and its impact on the performance of your BMW 535i.

Fuel System Maintenance Guide

Coming Soon

Step-by-step instructions for maintaining the fuel system of your BMW 535i, including filter replacement and inspection procedures.

BMW Warranty and Fuel Usage

Coming Soon

Understand how fuel usage and maintenance practices can affect your BMW 535i's warranty coverage.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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