Audi Audi A6 1997-2004

Audi Audi A6 1997-2004 3.0L Engine Specifications

Detailed technical specifications and service information for the 1997-2004 Audi A6 3.0L V6 engine. Includes performance metrics, maintenance guidelines, and component-specific details.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the 3.0l-engine specifications for the 1997-2004 Audi A6, including key features, measurements, and technical details

How to Use

Use the search function to locate specific 3.0l-engine specifications by entering keywords such as 'torque', 'horsepower', or 'compression ratio'.

Navigate through the 3.0l-engine documentation sections using the table of contents or by scrolling through the major sections and subsections.

Key Specifications

Displacement

2976 cc (3.0 liters)

Horsepower

220 hp @ 6300 rpm

Torque

221 lb-ft @ 3200 rpm

Compression Ratio

10.5:1

Oil Capacity

6.3 liters (6.7 quarts)

Available Specifications

Engine Design and Configuration

Details about the engine's design, configuration, and core components

Engine Type and Layout

Naturally aspirated V6 engine
30-valve configuration (5 valves per cylinder)
DOHC (Dual Overhead Camshaft) design
Aluminum alloy block and cylinder heads

Displacement and Compression

Displacement: 2976 cc (3.0 liters)
Compression ratio: 10.5:1
Bore: 82.5 mm
Stroke: 92.8 mm
Cylinder angle: 90 degrees

Note: The 90-degree cylinder angle ensures optimal balance and smooth operation.

Performance Specifications

Technical details about the engine's performance capabilities

Power and Torque

Maximum horsepower: 220 hp @ 6300 rpm
Maximum torque: 221 lb-ft @ 3200 rpm
Redline: 6800 rpm
Fuel delivery: Sequential multi-port fuel injection

Fuel Efficiency and Emissions

Fuel type: Premium unleaded (91 octane or higher)
Average fuel consumption: 18 mpg city / 25 mpg highway
Emissions compliance: Meets Euro 3 standards
Catalytic converter: Integrated into the exhaust system

Note: Premium fuel is required for optimal performance and efficiency.

Cooling and Lubrication Systems

Details about the engine's cooling and lubrication systems

Cooling System

Liquid-cooled with a high-capacity radiator
Thermostat opening temperature: 87°C (189°F)
Coolant capacity: 10.5 liters (2.77 gallons)
Electric cooling fan with dual-speed operation

Lubrication System

Wet sump oil system
Oil capacity: 6.3 liters (6.7 quarts) with filter
Recommended oil grade: 5W-40 synthetic
Oil pressure: 2.0-4.5 bar at 2000 rpm

Note: Regular oil changes are critical to maintaining engine longevity.

Ignition and Electrical Systems

Technical details about the ignition and electrical systems

Ignition System

Distributorless ignition system (DIS)
Spark plug gap: 0.8 mm (0.031 in)
Ignition timing: 10° BTDC at idle
Coil-on-plug design for each cylinder

Electrical System

Battery voltage: 12V
Alternator output: 120A
Starter motor power: 1.4 kW
Fuse box location: Under the dashboard

Note: Ensure the battery is properly maintained to avoid electrical system issues.

Search Specifications

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Engine Specifications

Overview

Type: V6

Configuration: 90-degree V6

Platform: Audi C4/C5

Material: Cast iron engine block, aluminum alloy cylinder head

Location: Longitudinal

Dimensions

Displacement: 3.0 liters (2976 cc)

Power: 220 horsepower @ 6200 rpm

Torque: 221 lb-ft @ 3200 rpm

Cylinders: 6

Valve Train: Dual overhead camshafts (DOHC) with 24 valves

Fuel injection: Multi-point fuel injection

Compression Ratio: 10.5:1

Emissions Standard: Euro 2

Engine Code: AAN

Materials

Engine Block: Cast iron

Cylinder Head: Aluminum alloy

Crankshaft: Forged steel

Camshaft: Cast iron

Valves: Stainless steel

Features

Fuel System

Multi-point fuel injection
Fuel pressure regulator
Fuel cooler
Returnless fuel system

Engine Management

Bosch Motronic engine control unit
Knock sensor
Heated oxygen sensor
Cruise control integration

Cooling System

Water-cooled
Electric cooling fan
Thermostat
Coolant temperature sensor

Exhaust System

Stainless steel exhaust manifold
Catalytic converter
Rear muffler
Dual exhaust tips

Combustion

Variable intake manifold
Dual spark plugs per cylinder
Coil-on-plug ignition
Hydraulic lash adjusters

Lubrication

Wet-sump system
Engine oil cooler
Oil pressure sensor
Oil level sensor

Emissions Control

Catalytic converter
EGR valve
Fuel evaporative system
Secondary air injection

Safety Features

Engine Immune System

Immobilizer system
Anti-theft engine protection

Airbags

Dual front airbags
Side airbags
Curtain airbags

Braking System

ABS (Anti-lock Braking System)
Electronic Brakeforce Distribution (EBD)
Emergency Brake Assist (EBA)

Traction Control

ASR (Anti-Slip Regulation)
ESP (Electronic Stability Program)

Comfort Features

Climate Control

Automatic climate control
Dual-zone temperature control
Air quality sensor
Rear seat ventilation

infotainment

BOSE premium sound system
CD player
Cassette player
Auxiliary input

Seating

Leather upholstery
Heated front seats
Power adjustable front seats
Memory seats

Convenience

Cruise control
Power steering
Remote central locking
Rain sensor

Lighting

Xenon headlights
Fog lights
Auto-dimming rear view mirror
Ambient lighting

Accessories

Engine Accessories

Engine cover
Oil dipstick
Coolant reservoir
Brake fluid reservoir

Tools

Tool kit
Spare tire
Jack
Wheel chocks

Optional Equipment

Engine block heater
Performance air filter
Engine tuning kit
Fuel additive kit

Maintenance

Service interval: Every 5,000 miles or 6 months

Service Items

Oil change
Oil filter replacement
Air filter inspection
Tire pressure check
Brake fluid level check
Battery check
Belts inspection

Notes: Recommended synthetic oil, spark plug replacement every 30,000 miles, timing belt replacement every 60,000 miles

Warranty

Basic Warranty: Miles: 50,000
Years: 4
Coverage: Bumper-to-bumper

Powertrain Warranty: Miles: 70,000
Years: 5
Coverage: Engine, transmission, drivetrain

Corrosion Warranty: Miles: Unlimited
Years: 12
Coverage: Perforation of body panels

Roadside Assistance: Miles: Unlimited
Years: 4
Coverage: 24/7 roadside assistance

Production Details

Manufacturer: Audi AG

Manufacturing Process

Cylinder block machining
Cylinder head machining
Crankshaft forging
Engine assembly
Quality control testing

Quality Control: inspection: Visual and dimensional inspection
Testing: Performance and leakage testing
Certification: ISO 9001:2000

Sustainability Practices

Recycling of production materials
Energy-efficient manufacturing
Emission reduction technologies

Production Metrics: Units Produced: Over 500,000 units
Production Years: 1997-2004
Manufacturing Plants: Ingolstadt, Germany

Service Information for 3.0l engine Service

Maintenance and service requirements specific to this component

5,000

Oil change
Oil filter replacement
Air filter inspection
Tire pressure check
Brake fluid level check
Battery check

Recommended synthetic oil. Check all fluid levels.

30,000

Spark plug replacement
Belts inspection
Hoses inspection
Coolant check
Transmission fluid check
Differential fluid check

Special tools required for spark plug replacement.

60,000

Timing belt replacement
Water pump replacement
Drive belts replacement
Engine mounts replacement
Suspension inspection
Brake system inspection

Critical to replace timing belt to avoid engine damage.

Common Questions

Find answers to common questions about torque specifications

What is the horsepower and torque output of the 3.0L V6 engine in the 1997-2004 Audi A6?

The 3.0L V6 engine in the 1997-2004 Audi A6 produces 220 horsepower at 6,300 RPM and 221 lb-ft of torque at 3,200 RPM. This engine is naturally aspirated and features a dual overhead camshaft (DOHC) design with 5 valves per cylinder.

What type of oil and oil capacity does the 3.0L engine require?

The 3.0L V6 engine requires fully synthetic 5W-40 engine oil with a capacity of approximately 6.3 liters (6.7 quarts) including the oil filter. Always use oil that meets Audi's VW 502 00 or VW 505 00 specifications.

What is the recommended spark plug gap for the 3.0L engine?

The recommended spark plug gap for the 3.0L V6 engine is 0.032 inches (0.8 mm). Use only Audi-approved spark plugs, such as Bosch F5DPOR or NGK BKR6EKUB, to ensure proper performance and longevity.

How often should the timing belt be replaced on the 3.0L engine?

The timing belt on the 3.0L V6 engine should be replaced every 75,000 miles (120,000 km) or 5 years, whichever comes first. Failure to replace the timing belt on time can result in catastrophic engine damage.

What is the fuel economy of the 3.0L engine in the Audi A6?

The 3.0L V6 engine in the Audi A6 achieves an estimated fuel economy of 17 MPG in the city and 24 MPG on the highway, depending on driving conditions and vehicle configuration.

What is the compression ratio of the 3.0L engine?

The 3.0L V6 engine has a compression ratio of 10.5:1, which is optimized for performance and efficiency while using premium unleaded fuel (91 octane or higher).

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 3.0L V6 Engine Service Manual

Coming Soon

Official service manual for the 3.0L V6 engine, covering maintenance, repair procedures, and technical specifications.

Timing Belt Replacement Guide for 3.0L Engine

Coming Soon

Step-by-step guide for replacing the timing belt on the 3.0L V6 engine, including tools required and safety precautions.

Audi Genuine Parts Catalog for 3.0L Engine

Coming Soon

Catalog of genuine Audi parts for the 3.0L V6 engine, including part numbers and compatibility information.

Common Issues and Troubleshooting for 3.0L Engine

Coming Soon

Detailed guide addressing common issues with the 3.0L V6 engine, such as oil leaks, misfires, and cooling system problems.

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Technical Information

All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
Vehicle specifications and procedures may vary by model year, trim level, and region.
Always follow the manufacturer's recommended procedures and safety precautions.
Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
If you're unsure about any procedure, consult a qualified professional mechanic.

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