Audi Audi S7 2012-2018 Fuel System Specifications
Audi Audi S7 2012-2018

Audi Audi S7 2012-2018 Fuel System Specifications

Detailed technical specifications and documentation for the fuel system of the 2012-2018 Audi S7. Includes fuel type requirements, fuel delivery system components, and maintenance guidelines.

Updated

Overview Specifications

Comprehensive description of the fuel specifications for the 2012-2018 Audi S7, 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', 'octane rating', or 'fuel capacity'.

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 Type

Premium unleaded (91+ octane)

Fuel Tank Capacity

19.8 gallons (75 liters)

Fuel Pump Pressure

58 psi (4 bar)

Combined Fuel Economy

21 mpg

CO2 Emissions

328 g/mile

Available Specifications

Fuel Type and Quality

Details about the recommended fuel type and quality for optimal performance and engine longevity

Recommended Fuel Type
  • Premium unleaded gasoline with an octane rating of 91 or higher
  • Minimum octane rating of 87 is acceptable but may reduce performance
  • Use of ethanol blends up to E10 (10% ethanol) is permitted
  • Avoid using diesel or any fuel with methanol content
  • Fuel must meet EN 228 or ASTM D4814 standards
Fuel Additives
  • Use of fuel system cleaners is recommended every 10,000 miles
  • Avoid additives containing metal compounds (e.g., manganese)
  • Additives must comply with Audi's technical specifications
  • Consult the owner's manual for approved additive brands

Note: Using non-approved additives may void the warranty.

Fuel System Specifications

Technical details about the fuel system, including capacity, pressure, and components

Fuel Tank Capacity
  • Total fuel tank capacity: 19.8 gallons (75 liters)
  • Reserve fuel capacity: 2.6 gallons (10 liters)
  • Fuel tank material: High-density polyethylene
  • Fuel tank design: Dual-chamber for improved safety
Fuel Delivery System
  • Direct fuel injection system with multi-port injection
  • Fuel pump pressure: 58 psi (4 bar)
  • High-pressure fuel pump for direct injection: 2,175 psi (150 bar)
  • Fuel filter replacement interval: Every 40,000 miles

Note: Regular maintenance of the fuel system is critical for optimal performance.

Fuel Efficiency and Emissions

Information about fuel efficiency, emissions standards, and environmental compliance

Fuel Efficiency
  • City fuel economy: 17 mpg
  • Highway fuel economy: 27 mpg
  • Combined fuel economy: 21 mpg
  • CO2 emissions: 328 g/mile
Emissions Compliance
  • Complies with Euro 6 and EPA Tier 3 emissions standards
  • Equipped with a catalytic converter and particulate filter
  • OBD-II compliant for emissions monitoring
  • Low NOx emissions due to advanced combustion technology

Note: Regular emissions system checks are required to maintain compliance.

Component Specifications

Fuel Type

Recommended Fuel
Premium unleaded gasoline (91 AKI or 95 RON minimum)
Alternative Fuel
Regular unleaded gasoline (87 AKI or 91 RON) with reduced performance
Ethanol Content
Up to 10% ethanol (E10)
Notes
Using fuel with higher ethanol content may void warranty and cause engine damage

Fuel Tank

Capacity
19.8 gallons (75 liters)
Material
High-density polyethylene (HDPE)
Part Number
4G0201101A
Pressure Rating
3.0 bar (43.5 psi)
Notes
Includes integrated fuel pump and level sensor

Fuel Pump

Type
Electric in-tank fuel pump
Flow Rate
120 liters per hour (LPH)
Pressure
5.0 bar (72.5 psi)
Part Number
4H0919051B
Voltage
12V DC
Notes
Includes fuel filter and pressure regulator

Fuel injectors

Type
Direct injection (FSI)
Flow Rate
200 cc/min at 3.0 bar
Part Number
06E906036C
Spray Pattern
Multi-hole
Notes
Requires periodic cleaning to prevent carbon buildup

Fuel Filter

Type
In-line fuel filter
Part Number
4G0201511A
Replacement interval
Every 40,000 miles or 4 years
Pressure Rating
6.0 bar (87 psi)
Notes
Integrated into fuel pump module

Fuel Pressure

Operating Pressure
4.0-6.0 bar (58-87 psi)
Idle Pressure
3.5 bar (50.8 psi)
Maximum Pressure
7.0 bar (101.5 psi)
Tolerance
+/- 0.2 bar
Notes
Monitored by fuel pressure sensor

Fuel System Diagnostics

Diagnostic Tool
Audi VAS 6150 or equivalent
Error Codes
  • P0087 - Fuel Rail/System Pressure Too Low
  • P0088 - Fuel Rail/System Pressure Too High
  • P0171 - System Too Lean
  • P0172 - System Too Rich
Test Procedures
  • Check fuel pressure with diagnostic tool
  • Inspect fuel pump relay and fuse
  • Verify fuel injector operation
Notes
Use Audi-specific diagnostic software for accurate readings

Fuel System Maintenance

injector Cleaning Interval
Every 30,000 miles or 3 years
Fuel Tank Cleaning Interval
Every 60,000 miles or 6 years
Fuel System Additives
Audi-approved fuel system cleaner (part number: G001770M3)
Notes
Avoid aftermarket additives not approved by Audi

Fuel System Safety

Fire Hazard
Highly flammable, keep away from open flames
Pressure Release
Depressurize fuel system before servicing
Safety Equipment
  • Fire extinguisher
  • Safety goggles
  • Gloves
Notes
Follow Audi workshop manual procedures for safe handling

Fuel System Cross References

Related Components
  • Engine control unit (ECU) - part number: 4G0907401A
  • Fuel pressure sensor - part number: 06E906051K
  • Fuel rail - part number: 06E133201B
Notes
Ensure compatibility with Audi S7 2012-2018 model years

Service Information Service

Detailed service requirements and schedules for the fuel system

10,000 miles
12 months
  • Inspect fuel lines for leaks
  • Check fuel pressure
  • Verify fuel injector operation

Perform visual inspection and diagnostic scan

30,000 miles
36 months
  • Clean fuel injectors
  • Replace fuel filter
  • Inspect fuel pump

Use Audi-approved cleaning solutions

60,000 miles
72 months
  • Replace fuel pump if necessary
  • Clean fuel tank
  • Inspect fuel pressure sensor

Follow Audi workshop manual for detailed procedures

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is recommended for the 2012-2018 Audi S7?

The 2012-2018 Audi S7 requires premium unleaded gasoline with an octane rating of 91 AKI (Anti-Knock Index) or higher. Using lower octane fuel may result in reduced performance and engine knocking.

Q2

Can I use ethanol-blended fuel in my Audi S7?

Yes, the Audi S7 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 damage the fuel system and void the warranty.

Q3

What is the fuel tank capacity of the Audi S7?

The fuel tank capacity of the 2012-2018 Audi S7 is 19.8 gallons (75 liters). This provides an estimated range of approximately 400-500 miles depending on driving conditions and fuel efficiency.

Q4

What is the fuel economy of the Audi S7?

The 2012-2018 Audi S7 has an EPA-estimated fuel economy of 17 mpg in the city and 27 mpg on the highway. Actual mileage may vary based on driving habits, road conditions, and vehicle maintenance.

Q5

Does the Audi S7 require any fuel additives?

Audi does not recommend the use of fuel additives for the S7. The vehicle is designed to operate efficiently with premium unleaded gasoline. Using additives may affect engine performance and void the warranty.

Q6

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 blend, avoid driving the vehicle and contact an Audi service center 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.

Audi Fuel System Maintenance Guide

Coming Soon

Learn about proper fuel system maintenance, including fuel filter replacement and injector cleaning, to ensure optimal performance.

Understanding Octane Ratings

Coming Soon

A detailed explanation of octane ratings and their importance for high-performance engines like the Audi S7.

Audi Warranty and Fuel Requirements

Coming Soon

Information on how using the correct fuel type impacts your Audi warranty and what to do in case of fuel-related issues.

Ethanol-Blended Fuels and Your Audi

Coming Soon

A guide to understanding the effects of ethanol-blended fuels on Audi vehicles and how to avoid potential damage.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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