Audi Audi A4 2017-present

Audi Audi A4 2017-present Fuel System Specifications

Explore the detailed fuel system specifications for the 2017-Present Audi A4, including fuel type requirements, injection technology, and maintenance tips for optimal performance.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the fuel specifications for the 2017-Present Audi A4, including key features, measurements, and technical details. This section provides essential information on fuel types, system components, and performance metrics 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 capacity'. Use exact terms for precise results.

Navigate through the fuel documentation sections using the table of contents. Each major section is divided into subsections for detailed technical information.

Key Specifications

Fuel Tank Capacity

15.3 gallons (58 liters)

Minimum Octane Rating

91 AKI (95 RON)

Fuel Pump Pressure

58 psi (4 bar) at idle

Combined Fuel Economy

28 mpg (8.4 L/100 km)

CO2 Emissions

161 g/km (combined)

Available Specifications

Fuel Types and Requirements

This section outlines the approved fuel types, octane ratings, and additives for the 2017-Present Audi A4. It also includes recommendations for optimal performance and fuel efficiency.

Approved Fuel Types

Premium unleaded gasoline with a minimum octane rating of 91 AKI (Anti-Knock Index)
Ethanol-blended fuels (E10) with up to 10% ethanol content
Diesel fuel is not compatible with gasoline engines
Use of fuel additives is not recommended unless approved by Audi

Octane Rating and Performance

Minimum octane rating: 91 AKI (95 RON)
Recommended octane rating: 93 AKI (98 RON) for enhanced performance
Lower octane fuels may cause engine knocking and reduced efficiency
Higher octane fuels improve combustion efficiency and power output

Note: Using fuel with an octane rating below 91 AKI may void the vehicle's warranty.

Fuel System Components

This section details the key components of the Audi A4 fuel system, including the fuel tank, fuel pump, injectors, and sensors. It provides technical specifications and maintenance guidelines.

Fuel Tank Specifications

Fuel tank capacity: 15.3 gallons (58 liters)
Material: High-density polyethylene (HDPE) with anti-corrosion coating
Includes an integrated fuel level sensor for accurate readings
Designed for optimal weight distribution and crash safety

Fuel Injectors and Pump

Direct fuel injection system with multi-hole injectors
Fuel pump pressure: 58 psi (4 bar) at idle, up to 145 psi (10 bar) under load
Injector flow rate: 500 cc/min at 3 bar pressure
High-pressure fuel pump ensures precise fuel delivery

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

Fuel Efficiency and Emissions

This section covers the fuel efficiency ratings, emissions standards, and environmental impact of the Audi A4. It includes data on fuel consumption and CO2 emissions.

Fuel Consumption

City driving: 24 mpg (9.8 L/100 km)
Highway driving: 34 mpg (6.9 L/100 km)
Combined fuel economy: 28 mpg (8.4 L/100 km)
Fuel efficiency may vary based on driving conditions and load

Emissions and Environmental Impact

Complies with Euro 6 emissions standards
CO2 emissions: 161 g/km (combined)
Equipped with a catalytic converter and particulate filter
Designed to minimize NOx and particulate emissions

Note: Regular maintenance of the emissions system is required to ensure compliance with environmental regulations.

Fuel System Maintenance

This section provides guidelines for maintaining the Audi A4 fuel system, including inspection intervals, cleaning procedures, and troubleshooting tips.

Inspection and Cleaning

Inspect fuel lines and connections every 10,000 miles (16,000 km)
Clean fuel injectors every 30,000 miles (48,000 km)
Replace fuel filter every 40,000 miles (64,000 km)
Check fuel tank for leaks or damage during routine maintenance

Troubleshooting Common Issues

Engine misfires may indicate clogged fuel injectors
Reduced fuel efficiency could signal a failing fuel pump
Unusual noises from the fuel tank may indicate a damaged fuel level sensor
Check engine light may illuminate due to fuel system faults

Note: Always use Audi-approved diagnostic tools for troubleshooting fuel system issues.

Search Specifications

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Component Specifications

Overview

Type: gasoline, diesel

Configuration: direct injection

Platform: MLB Evo

Material: high-density polyethylene (fuel tank)

Location: under rear seat

Dimensions

Fuel Tank Capacity: 15.3 gallons (58 liters)

Fuel Line Diameter: 0.75 inches (19 mm)

Fuel injector Size: 0.013 inches (0.33 mm)

Fuel Pump Flow Rate: 120 liters/hour (31.7 gallons/hour)

Fuel Pressure Range: 40-80 psi (petrol), 180-220 bar (diesel)

Fuel Filter Size: 2.5 x 5 inches (64 x 127 mm)

Materials

Fuel Tank: high-density polyethylene

Fuel Lines: nylon or rubber

Fuel injectors: stainless steel with Viton seals

Fuel Pump: stainless steel housing with thermoplastic impeller

Features

Fuel injection Types

direct injection
indirect injection

Fuel Efficiency Technologies

start-stop technology
cylinder on demand
coasting with engine off

Emissions Control Systems

catalytic converter
diesel particulate filter
exhaust gas recirculation

Fuel Pump Features

variable pressure control
self-priming

Fuel injection Timing

continuous injection
adaptive injection control

Fuel Tank Features

anti-slosh baffle system
ventilation system

Safety Features

Fuel Tank Protection

collision protection
thermal shielding

Fuel Leak Detection

level sensor
pressure monitoring

Fire Resistance

flame arrestor
heat shield

Rollover Protection

rollover valve

Comfort Features

Fuel Efficiency

improved mileage
lower emissions

Quiet Operation

noise-reducing materials
sound insulation

Smooth Acceleration

direct injection system
adaptive fuel mapping

Long Driving Range

large fuel tank capacity
efficient engine

Convenience Features

capless fuel filler
fuel door release

Accessories

Fuel Additives

fuel injector cleaner
diesel additive

Fuel System Replacement Parts

fuel filters
fuel pumps
injectors

Optional Upgrades

high-flow fuel injectors
performance fuel pumps

Maintenance

Service interval: 5,000 to 7,500 miles (6 to 12 months)

Service Items

fuel filter replacement
fuel system inspection
fuel pressure check
injector cleaning
fuel line inspection

Maintenance Notes: Use Audi-approved fuel and parts. Follow recommended service intervals.

Warranty

New Vehicle: Miles: 50000
Years: 4
Coverage: basic vehicle

Fuel System Components: Miles: 50000
Years: 4
Coverage: fuel system parts

Emissions Control: Miles: 26000
Years: 2
Coverage: emissions system

Emissions-Performance: Miles: 80000
Years: 8
Coverage: emissions performance

Warranty Terms: Warranty terms apply as per Audi's policies and conditions.

Production Details

Manufacturer: Audi AG

Manufacturing Process

injection molding
CNC machining
robotic assembly
quality assurance testing

Quality Control: inspection: visual and dimensional checks
Testing: pressure, flow, and leakage tests
Certification: ISO/TS 16949

Sustainability Practices

recycled materials
energy-efficient manufacturing
eco-friendly coatings

Production Metrics: Annual Production: hundreds of thousands units
Capacity: 58 liters (15.3 gallons)
Compliance: EURO 6, EPA standards

Service Information for Fuel System Service

Maintenance and service requirements specific to the fuel system component

5,000

Fuel filter replacement
Fuel system inspection
Fuel pressure check
Fuel injector cleaning
Fuel line inspection

Recommended for normal driving conditions. Use synthetic oil and Audi-approved parts.

15,000

Spark plug replacement
Fuel system cleaning
Oxygen sensor inspection
Fuel tank venting system check
Hoses and connections inspection

Include battery check and tire rotation. Special tools may be required.

30,000

Fuel pump inspection
Fuel injectors flow test
Fuel pressure regulator replacement
Fuel tank breather system service
Complete fuel system diagnostic test

Major service recommended. Critical to use correct parts and follow proper procedures.

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of fuel is recommended for the 2017-Present Audi A4?

The 2017-Present Audi A4 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 2017-Present Audi A4?

The fuel tank capacity of the 2017-Present Audi A4 is 15.3 gallons (58 liters). This capacity may vary slightly depending on the specific trim and model year.

Can I use ethanol-blended fuel in my Audi A4?

Yes, the 2017-Present Audi A4 can use ethanol-blended fuels containing up to 10% ethanol (E10). However, fuels with higher ethanol content, such as E85, are not recommended and may cause damage to the fuel system.

What is the fuel economy of the 2017-Present Audi A4?

The fuel economy for the 2017-Present Audi A4 varies by engine type and drivetrain. For the 2.0L TFSI engine with front-wheel drive, the EPA-estimated fuel economy is 27 mpg city and 37 mpg highway. All-wheel drive models may have slightly lower fuel efficiency.

How often should I replace the fuel filter in my Audi A4?

The fuel filter in the 2017-Present Audi A4 is designed to last the lifetime of the vehicle under normal driving conditions. However, if you experience fuel delivery issues or contamination, it may need to be replaced. Consult your owner's manual or an Audi-certified technician for specific recommendations.

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 Fuel System Maintenance Guide

Coming Soon

A comprehensive guide to maintaining the fuel system of your Audi A4, including tips on fuel quality, filter replacement, and troubleshooting common issues.

Audi Fuel Efficiency Tips

Coming Soon

Learn how to maximize the fuel efficiency of your Audi A4 with driving tips, maintenance advice, and recommended fuel types.

Audi Fuel System Warranty Information

Coming Soon

Detailed information on the warranty coverage for the fuel system components of the 2017-Present Audi A4, including exclusions and requirements.

Audi Fuel Additives and Cleaners

Coming Soon

A guide to using fuel additives and cleaners in your Audi A4, including recommendations and precautions to ensure optimal performance.

About the Author

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