Audi Audi Q7 2015-present

Audi Audi Q7 2015-present Fuel System Specifications

Detailed technical specifications and guidelines for the fuel system of the 2015-Present Audi Q7. Learn about fuel type requirements, fuel delivery system components, injector specifications, and maintenance tips for optimal performance.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the fuel specifications for the 2015-Present Audi Q7, including key features, measurements, and technical details

How to Use

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

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

Key Specifications

Fuel Tank Capacity (Gasoline)

22.5 gallons (85 liters)

Recommended Octane Rating

91 or higher

Fuel Pump Flow Rate

120 liters/hour

Fuel Injector Pressure (Diesel)

Up to 2,000 bar

Fuel Efficiency (Diesel)

22 mpg city / 29 mpg highway

Available Specifications

Fuel Type and Quality

This section covers the recommended fuel types, quality standards, and octane ratings for optimal performance.

Recommended Fuel Types

Premium unleaded gasoline with an octane rating of 91 or higher
Diesel variants require ultra-low sulfur diesel (ULSD) with a maximum sulfur content of 15 ppm
Ethanol blends up to E10 (10% ethanol) are acceptable for gasoline engines
Avoid using fuels with additives or contaminants that may harm the engine

Octane Rating Requirements

Minimum octane rating of 87 for gasoline engines (reduced performance)
Optimal octane rating of 91 or higher for maximum power and efficiency
Lower octane fuels may cause knocking and reduced engine lifespan
Diesel engines require a cetane number of 51 or higher

Note: Using fuel with an octane rating below 91 may void the warranty in certain conditions.

Fuel Tank Specifications

Details about the fuel tank capacity, materials, and design features.

Fuel Tank Capacity

Gasoline models: 22.5 gallons (85 liters)
Diesel models: 21.7 gallons (82 liters)
Reserve fuel capacity: Approximately 2.6 gallons (10 liters)
Tank material: High-density polyethylene (HDPE) for durability and corrosion resistance

Fuel Tank Design

Dual-chamber design for improved fuel sloshing prevention
Integrated fuel pump and level sensor assembly
Pressure-resistant design for evaporative emissions control
Includes a fuel filler neck with a capless refueling system

Fuel System Components

Technical details about the fuel delivery system, including the fuel pump, injectors, and filters.

Fuel Pump Specifications

Electric in-tank fuel pump with a flow rate of 120 liters per hour
Operating pressure: 5.8 bar (84 psi)
Integrated pressure relief valve for system safety
Designed for compatibility with ethanol-blended fuels

Fuel Injectors

Direct injection system for gasoline engines
Injector flow rate: 15.5 cc/min at 3 bar pressure
High-pressure common rail system for diesel engines (up to 2,000 bar)
Precision-machined nozzles for optimal fuel atomization

Note: Regular cleaning of fuel injectors is recommended to maintain performance.

Fuel Efficiency and Emissions

Information about fuel consumption rates, emissions standards, and environmental compliance.

Fuel Consumption Rates

Gasoline models: 19 mpg city / 25 mpg highway (combined 21 mpg)
Diesel models: 22 mpg city / 29 mpg highway (combined 25 mpg)
Fuel economy may vary based on driving conditions and load
Eco mode available for improved fuel efficiency

Emissions Compliance

Meets Euro 6 emissions standards for diesel models
Gasoline models comply with LEV III (Low Emission Vehicle) standards
Equipped with a catalytic converter and diesel particulate filter (DPF)
Onboard diagnostics (OBD) system monitors emissions performance

Search Specifications

Search by specification name, value, or description

Component Specifications

Fuel Type

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

Minimum Fuel: Regular unleaded gasoline (87 AKI or 91 RON)

Ethanol Content: Up to 10% ethanol (E10)

Diesel Variant: Not applicable

Alternative Fuels: Not supported

Fuel Tank

Capacity: 22.5 gallons (85 liters)

Material: High-density polyethylene (HDPE)

Part Number: 4M0201101A

Pressure Relief Valve: Integrated, 3.5 psi (24 kPa)

Fuel Level Sensor: Resistive type, 0-100% range

Fuel Delivery System

Fuel Pump: Type: Electric in-tank pump
Flow Rate: 150 liters/hour at 5 bar
Pressure: 5 bar (72.5 psi)
Part Number: 4M0919051B

Fuel Filter: Type: In-line cartridge
Micron Rating: 10 microns
Replacement interval: Every 40,000 miles (64,000 km)
Part Number: 4M0127401C

Fuel injectors: Type: Direct injection (FSI)
Flow Rate: 200 cc/min at 3 bar
Spray Pattern: Multi-hole, 6 holes per injector
Part Number: 06E906036C

Fuel Quality Requirements

Octane Rating: Minimum 87 AKI (91 RON), Recommended 91 AKI (95 RON)

Sulfur Content: Maximum 10 ppm

Additives: Audi-approved fuel additives only

Contaminants: No water, dirt, or metal particles

Fuel System Pressure

Operating Pressure: 5 bar (72.5 psi)

Maximum Pressure: 6.5 bar (94.3 psi)

Pressure Sensor Range: 0-10 bar (0-145 psi)

Pressure Tolerance: +/- 0.2 bar (2.9 psi)

Fuel Economy

City: 19 mpg (12.4 L/100 km)

Highway: 25 mpg (9.4 L/100 km)

Combined: 21 mpg (11.2 L/100 km)

Co2 Emissions: 298 g/km

Fuel System Diagnostics

Obd2 Codes: P0171: System too lean
P0172: System too rich
P0181: Fuel temperature sensor circuit range/performance
P0191: Fuel rail pressure sensor circuit range/performance

Diagnostic Tools: Audi VAS 6154 or equivalent

Pressure Test: Required for P0191 code, 5 bar nominal

Fuel System Maintenance

injector Cleaning: Every 30,000 miles (48,000 km)

Fuel Filter Replacement: Every 40,000 miles (64,000 km)

Tank Cleaning: As needed, inspect every 60,000 miles (96,000 km)

Seal inspection: Every 20,000 miles (32,000 km)

Fuel System Safety

Fire Hazard: Avoid open flames or sparks near fuel system

Pressure Release: Depressurize system before service

Spill Containment: Use approved fuel spill kits

Ventilation: Ensure proper ventilation during fuel system work

Fuel System Cross References

Related Components

Engine control module (ECM)
Fuel pressure sensor
Fuel temperature sensor
Throttle body

Part Numbers: Ecm: 4M0907401A
Fuel Pressure Sensor: 4M0906275B
Fuel Temperature Sensor: 4M0906276C
Throttle Body: 4M0907128D

Fuel System Service Information Service

Detailed service requirements and schedules for the fuel system

20,000 miles

12 months

Inspect fuel lines and connections
Check fuel pressure
Inspect fuel injectors

Use Audi-approved diagnostic tools

40,000 miles

24 months

Replace fuel filter
Clean fuel injectors
Inspect fuel tank and seals

Depressurize fuel system before service

60,000 miles

36 months

Perform fuel system pressure test
Inspect fuel pump
Check fuel quality

Use Audi-approved fuel additives if necessary

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of fuel is recommended for the 2015-Present Audi Q7?

The 2015-Present Audi Q7 is designed to run on premium unleaded gasoline with an octane rating of 91 or higher. Using lower octane fuel may result in reduced performance and fuel efficiency.

What is the fuel tank capacity of the Audi Q7?

The fuel tank capacity of the Audi Q7 is 22.5 gallons (85 liters). This allows for a substantial driving range, especially when combined with the vehicle's efficient fuel consumption.

Can I use ethanol-blended fuel in my Audi Q7?

The Audi Q7 can use ethanol-blended fuels with up to 10% ethanol (E10). However, fuels with higher ethanol content, such as E85, are not recommended as they can cause damage to the fuel system and engine components.

What is the fuel economy of the Audi Q7?

The fuel economy of the Audi Q7 varies depending on the engine and drivetrain configuration. For the 3.0L TFSI engine, the estimated fuel economy is 19 mpg city and 25 mpg highway. For the TDI diesel engine, it is 22 mpg city and 29 mpg highway.

How often should I replace the fuel filter in my Audi Q7?

The fuel filter in the Audi Q7 should be replaced every 40,000 miles or as specified in the vehicle's maintenance schedule. Regular replacement ensures optimal fuel flow and protects the engine from contaminants.

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

If you accidentally use the wrong type of fuel, do not start the engine. Contact an Audi service center immediately to have the fuel system drained and cleaned. Starting the engine with incorrect fuel can cause severe 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.

Audi Q7 Fuel System Overview

Coming Soon

Detailed guide on the fuel system components, including the fuel pump, injectors, and filters, specific to the 2015-Present Audi Q7.

Fuel Efficiency Tips for Audi Q7

Coming Soon

Practical tips and driving techniques to maximize fuel efficiency and reduce fuel consumption in your Audi Q7.

Audi Q7 Maintenance Schedule

Coming Soon

Comprehensive maintenance schedule for the Audi Q7, including fuel system service intervals and recommended procedures.

Understanding Octane Ratings

Coming Soon

Explains the importance of octane ratings and how they affect engine performance and fuel efficiency in vehicles like the Audi Q7.

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