Audi Audi S6 1994-1997

Audi Audi S6 1994-1997 Fuel System Specifications

Detailed technical specifications and documentation for the fuel system of the 1994-1997 Audi S6, including fuel type, pressure, injector flow rates, and system components.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the fuel specifications for the 1994-1997 Audi S6, including key features, measurements, and technical details. This section provides essential information on fuel requirements, system components, and performance specifications to ensure optimal operation and maintenance of the vehicle.

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'. Utilize filters to narrow down results by year or model.

Navigate through the fuel documentation sections using the table of contents. Each major section is divided into subsections for detailed information. Click on the section headers to expand and view the content.

Key Specifications

Fuel Type

Premium unleaded (91 RON or higher)

Fuel Tank Capacity

80 liters (21.1 gallons)

Fuel System Pressure

3.8 bar (55 psi)

Fuel Injector Flow Rate

280 cc/min at 3.0 bar

Combined Fuel Consumption

11.8 L/100 km (20 mpg)

Available Specifications

Fuel Type and Quality

This section covers the recommended fuel type, octane rating, and quality standards for the 1994-1997 Audi S6 to ensure optimal engine performance and longevity.

Recommended Fuel Type

Use premium unleaded gasoline with an octane rating of 91 or higher
Avoid using fuel with ethanol content exceeding 10% (E10)
Ensure fuel is free from contaminants and additives not approved by Audi
Do not use leaded gasoline or diesel fuel

Octane Rating Requirements

Minimum octane rating: 91 RON (Research Octane Number)
Optimal performance achieved with 95 RON or higher
Lower octane fuel may cause engine knocking and reduced performance
Always refer to the owner's manual for specific recommendations

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

Fuel System Specifications

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

Fuel System Pressure

Operating pressure: 3.8 bar (55 psi)
Idle pressure: 2.5 bar (36 psi)
Maximum pressure: 4.2 bar (61 psi)
Pressure regulator located on the fuel rail

Fuel Injector Specifications

Injector flow rate: 280 cc/min at 3.0 bar
Injector resistance: 14.5 ohms ± 0.5 ohms
Injector pulse width: 2.5 ms to 10 ms
Injector spray pattern: Multi-hole design for optimal atomization

Note: Ensure injectors are cleaned and inspected regularly to maintain performance.

Fuel Tank and Capacity

This section outlines the fuel tank specifications, including capacity, materials, and safety features.

Fuel Tank Capacity

Total capacity: 80 liters (21.1 gallons)
Usable capacity: 75 liters (19.8 gallons)
Reserve capacity: 5 liters (1.3 gallons)
Tank material: High-density polyethylene (HDPE)

Fuel Tank Safety Features

Integrated rollover valve to prevent fuel spillage
Pressure relief valve for overpressure protection
Impact-resistant design to withstand collisions
Ventilation system to prevent vapor lock

Note: Regularly inspect the fuel tank for leaks or damage, especially after impact.

Fuel Consumption and Efficiency

This section provides information on fuel consumption rates, efficiency metrics, and factors affecting fuel economy.

Fuel Consumption Rates

City driving: 14.7 L/100 km (16 mpg)
Highway driving: 9.4 L/100 km (25 mpg)
Combined average: 11.8 L/100 km (20 mpg)
Fuel economy may vary based on driving conditions and load

Factors Affecting Fuel Efficiency

Driving style: Aggressive driving reduces efficiency
Tire pressure: Underinflated tires increase fuel consumption
Vehicle load: Additional weight decreases fuel economy
Environmental conditions: Cold weather reduces efficiency

Note: Regular maintenance, including air filter replacement and spark plug inspection, can improve fuel efficiency.

Search Specifications

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Component Specifications

Fuel Type

Recommended Fuel: Premium unleaded gasoline (91 octane or higher)

Minimum Octane Rating: 91 RON

Ethanol Content: Maximum 10% (E10)

Notes: Using lower octane fuel may result in reduced performance and engine knocking

Fuel Tank

Capacity: 70 liters (18.5 gallons)

Material: High-density polyethylene

Part Number: 8A0201101A

Pressure Relief Valve: Integrated, 0.3 bar (4.35 psi) release pressure

Notes: Tank includes an integrated fuel pump and level sensor

Fuel Pump

Type: Electric in-tank fuel pump

Flow Rate: 120 liters per hour (31.7 gallons per hour)

Operating Pressure: 3.0 bar (43.5 psi)

Part Number: 8A0906087B

Voltage: 12V DC

Notes: Pump includes a built-in fuel filter

Fuel Filter

Type: In-line cartridge filter

Part Number: 8A0201511A

Replacement interval: Every 60,000 miles or 60 months

Micron Rating: 10 microns

Notes: Located under the vehicle near the fuel tank

Fuel injectors

Type: Electronically controlled multi-port fuel injectors

Flow Rate: 200 cc/min at 3.0 bar (43.5 psi)

Part Number: 034906031C

Resistance: 14.5 ohms

Notes: Injectors are sequentially fired by the engine control unit (ECU)

Fuel Pressure Regulator

Type: Mechanical diaphragm regulator

Operating Pressure: 3.0 bar (43.5 psi)

Part Number: 8A0120741A

Location: Mounted on the fuel rail

Notes: Maintains consistent fuel pressure to the injectors

Fuel Rail

Material: Aluminum

Part Number: 8A0133611A

injector Ports: 5

Notes: Includes integrated fuel pressure test port

Fuel Lines

Material: Nylon with rubber coating

Diameter: 8 mm (0.31 in)

Pressure Rating: 5.0 bar (72.5 psi)

Notes: Fuel lines are routed along the underbody for safety

Fuel System Diagnostics

Diagnostic Tool: Audi VAG-COM or equivalent OBD-II scanner

Common Codes

P0171 - System too lean
P0172 - System too rich
P0190 - Fuel rail pressure sensor circuit malfunction

Notes: Diagnostic port located under the dashboard on the driver's side

Fuel System Maintenance

inspection Interval: Every 30,000 miles or 24 months

Tasks

Inspect fuel lines for leaks or damage
Check fuel filter for clogging
Test fuel pressure at the rail
Inspect fuel injectors for proper operation

Notes: Use only Audi-approved cleaning agents for injector cleaning

Service Information Service

Detailed service requirements and schedules for the fuel system

30,000

Inspect fuel lines and connections
Check fuel filter condition
Test fuel pressure

Replace fuel filter if clogged or damaged

60,000

Replace fuel filter
Inspect fuel injectors
Clean fuel injectors if necessary

Use Audi-approved cleaning solutions

100,000

120

Inspect fuel pump operation
Check fuel pressure regulator
Replace fuel lines if cracked or brittle

Perform a full fuel system diagnostic

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of fuel is recommended for the 1994-1997 Audi S6?

The 1994-1997 Audi S6 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.

What is the fuel tank capacity of the 1994-1997 Audi S6?

The fuel tank capacity of the 1994-1997 Audi S6 is 80 liters (approximately 21.1 gallons). This allows for a range of approximately 500-600 kilometers (310-370 miles) under normal driving conditions.

Can I use ethanol-blended fuels in the 1994-1997 Audi S6?

The 1994-1997 Audi S6 is not designed to run on ethanol-blended fuels with more than 10% ethanol (E10). Using higher ethanol blends can cause damage to the fuel system components and void the warranty.

What is the fuel consumption rate of the 1994-1997 Audi S6?

The 1994-1997 Audi S6 has an average fuel consumption of approximately 12-14 liters per 100 kilometers (19-17 mpg) in city driving and 8-10 liters per 100 kilometers (29-24 mpg) on the highway, depending on driving conditions and habits.

How often should I replace the fuel filter on the 1994-1997 Audi S6?

The fuel filter on the 1994-1997 Audi S6 should be replaced every 60,000 kilometers (37,000 miles) or as specified in the owner's manual. Regular replacement ensures optimal fuel flow and prevents contaminants from entering the engine.

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 S6 Owner's Manual (1994-1997)

Coming Soon

The official owner's manual for the 1994-1997 Audi S6, containing detailed information on fuel specifications, maintenance schedules, and safety warnings.

Audi Fuel System Maintenance Guide

Coming Soon

A comprehensive guide on maintaining the fuel system of the 1994-1997 Audi S6, including fuel filter replacement and fuel injector cleaning procedures.

Audi Genuine Parts Catalog

Coming Soon

The official catalog for Audi genuine parts, including fuel system components for the 1994-1997 Audi S6. Ensure compatibility and warranty compliance by using genuine parts.

Audi Technical Service Bulletins (TSBs)

Coming Soon

Access to Audi's Technical Service Bulletins for the 1994-1997 S6, providing updates and solutions for known fuel system issues.

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