Audi Audi S4 1997-2002 2.7L Engine Engine Specifications
Audi Audi S4 1997-2002

Audi Audi S4 1997-2002 2.7L Engine Specifications

Detailed technical specifications and maintenance guidelines for the 1997-2002 Audi S4 2.7L twin-turbocharged V6 engine. Includes performance metrics, system requirements, and repair procedures.

Updated

Overview Specifications

Comprehensive description of the 2.7l-engine specifications for the 1997-2002 Audi S4, including key features, measurements, and technical details

How to Use

Use the search function to locate specific 2.7l-engine specifications by entering keywords such as 'torque', 'compression ratio', or 'cylinder bore'.

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

Key Specifications

Displacement

2671 cc

Power Output

261 hp @ 5800 rpm

Torque

280 lb-ft @ 1850-3600 rpm

Compression Ratio

9.3:1

Oil Capacity

6.3 liters (6.7 quarts)

Available Specifications

Engine Design and Configuration

Details about the design, layout, and configuration of the 2.7l-engine
Engine Type and Layout
  • 2.7-liter V6 twin-turbocharged engine
  • Aluminum alloy block and cylinder heads
  • DOHC (Dual Overhead Camshaft) design
  • 30-valve configuration (5 valves per cylinder)
Cylinder Specifications
  • Cylinder bore: 81.0 mm
  • Piston stroke: 86.4 mm
  • Compression ratio: 9.3:1
  • Displacement: 2671 cc

Note: The engine features a compact design optimized for performance and efficiency.

Performance Specifications

Technical details about the engine's performance capabilities
Power and Torque
  • Maximum power output: 261 hp @ 5800 rpm
  • Peak torque: 280 lb-ft @ 1850-3600 rpm
  • Turbocharger boost pressure: 0.6 bar (8.7 psi)
  • Redline: 7000 rpm
Fuel System
  • Sequential multi-port fuel injection
  • Fuel pressure: 3.8 bar (55 psi)
  • Recommended fuel: Premium unleaded (91 octane or higher)

Note: The fuel system is designed for optimal combustion efficiency and performance.

Cooling and Lubrication

Details about the engine's cooling and lubrication systems
Cooling System
  • Liquid-cooled with a high-capacity radiator
  • Coolant capacity: 10.5 liters (2.8 gallons)
  • Thermostat opening temperature: 87°C (189°F)
  • Electric cooling fan with dual-speed operation
Lubrication System
  • Wet sump oil system
  • Oil capacity: 6.3 liters (6.7 quarts)
  • Recommended oil grade: 5W-40 synthetic
  • Oil pressure: 2.0-4.5 bar (29-65 psi) at operating temperature

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

Emissions and Compliance

Information about the engine's emissions systems and compliance standards
Emissions Control
  • Dual catalytic converters
  • OBD-II (On-Board Diagnostics II) compliant
  • Exhaust gas recirculation (EGR) system
  • Meets Euro 3 emissions standards
Exhaust System
  • Dual exhaust with stainless steel piping
  • Exhaust gas temperature sensor
  • Backpressure: 0.2-0.4 bar (2.9-5.8 psi) at full load

Note: The exhaust system is designed to minimize backpressure and optimize performance.

Engine Specifications

General

Engine Code
APB
Displacement
2.7 liters
Configuration
V6
Cylinder Bore
82.5 mm
Piston Stroke
86.4 mm
Compression Ratio
9.3:1
Engine Orientation
Longitudinal

Performance

Max Power
250 hp @ 5800 rpm
Max Torque
258 lb-ft @ 1850-3600 rpm
Redline
6500 rpm
Fuel System
Sequential multi-port fuel injection
Turbocharger
Twin K03 turbochargers

Fuel And Ignition

Fuel Type
Premium unleaded (91 octane or higher)
Fuel Pressure
3.8 bar (55 psi)
Ignition System
Direct ignition with individual coils
Spark Plug Gap
0.028-0.032 in (0.7-0.8 mm)
Ignition Timing
Adjustable via ECU

Lubrication

Oil Capacity
6.3 liters (with filter)
Oil Type
Synthetic 5W-40 (VW 502 00 specification)
Oil Pressure
2.0-4.5 bar at 2000 rpm
Oil Filter Part Number
06A 115 561 B

Cooling

Coolant Capacity
10.5 liters
Coolant Type
G12 (pink) or equivalent
Thermostat Opening Temp
87°C (189°F)
Radiator Cap Pressure
1.4 bar (20 psi)

Turbocharger System

Turbo Model
KKK K03
Boost Pressure
0.8 bar (11.6 psi)
Wastegate Actuation
Mechanical
intercooler Type
Dual side-mounted air-to-air

Valvetrain

Valve Configuration
DOHC, 4 valves per cylinder
Valve Clearance
Hydraulic lifters (self-adjusting)
Camshaft Material
Forged steel
Camshaft Drive
Timing belt

Timing System

Timing Belt Part Number
06B 109 119 D
Timing Belt Interval
60,000 miles or 5 years
Tensioner Part Number
06B 109 243
Idler Pulley Part Number
06B 109 244

Exhaust System

Exhaust Manifold Material
Cast iron
Catalytic Converter Part Number
8D0 254 701
Oxygen Sensor Type
Heated 4-wire
Exhaust Pipe Diameter
2.5 inches

Diagnostics

Obd Ii Compliance
Yes
Fault Code Reading
Via VAG-COM or OBD-II scanner
Common Fault Codes
  • P0171 - System too lean
  • P0299 - Turbo underboost
  • P0300 - Random misfire detected
Diagnostic Connector Location
Under driver's side dashboard

Service Information Service

Detailed service requirements and schedules for the 2.7L engine

5000
6
  • Oil and filter change
  • Inspect turbocharger system for leaks
  • Check coolant level and condition

Use only approved synthetic oil and coolant

15000
12
  • Replace air filter
  • Inspect spark plugs
  • Check timing belt condition

Replace spark plugs if worn or fouled

60000
60
  • Replace timing belt and tensioner
  • Replace water pump
  • Inspect all belts and hoses

Critical maintenance interval to prevent engine damage

Common Questions

Find answers to common questions about torque specifications

Q1

What is the horsepower and torque output of the 2.7L V6 biturbo engine in the 1997-2002 Audi S4?

The 2.7L V6 biturbo engine in the 1997-2002 Audi S4 produces 250 horsepower at 5,800 RPM and 258 lb-ft of torque between 1,850 and 3,600 RPM. This engine is known for its strong mid-range power delivery due to the twin-turbo setup.

Q2

What type of fuel system does the 2.7L engine use, and what is the recommended fuel octane rating?

The 2.7L engine utilizes a multi-point fuel injection (MPFI) system. Audi recommends using premium unleaded fuel with an octane rating of 91 or higher to ensure optimal performance and prevent engine knocking.

Q3

What is the oil capacity and recommended oil type for the 2.7L engine?

The 2.7L engine has an oil capacity of approximately 6.3 liters (6.7 quarts) when including the oil filter. Audi recommends using synthetic oil with a viscosity of 5W-40 that meets VW 502 00 or 505 00 specifications for optimal lubrication and engine protection.

Q4

What is the recommended service interval for the timing belt on the 2.7L engine?

Audi recommends replacing the timing belt on the 2.7L engine every 60,000 miles or 5 years, whichever comes first. Failure to adhere to this interval can result in catastrophic engine damage due to interference design.

Q5

What is the compression ratio of the 2.7L engine, and how does it affect performance?

The 2.7L engine has a compression ratio of 9.3:1. This relatively low compression ratio is optimized for forced induction, allowing the twin turbos to efficiently compress air into the combustion chambers without causing detonation.

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 S4 2.7L Engine Service Manual

Coming Soon

Official service manual for the 2.7L engine, covering maintenance procedures, torque specifications, and troubleshooting.

Timing Belt Replacement Guide for 2.7L Engine

Coming Soon

Step-by-step guide for replacing the timing belt on the 2.7L engine, including tools required and safety precautions.

Audi S4 2.7L Performance Upgrades

Coming Soon

Technical overview of common performance upgrades for the 2.7L engine, including turbocharger upgrades, ECU tuning, and exhaust modifications.

Audi S4 2.7L Engine Oil and Fluid Specifications

Coming Soon

Detailed guide on recommended oils, coolants, and other fluids for the 2.7L engine, including OEM part numbers.

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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.
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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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