Audi Audi S3 1999-2003

Audi Audi S3 1999-2003 Drivetrain Specifications

Detailed technical specifications and documentation for the drivetrain system of the 1999-2003 Audi S3, including engine, transmission, differential, and quattro system components.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the drivetrain specifications for the 1999-2003 Audi S3, including key features, measurements, and technical details

How to Use

Use the search function to locate specific drivetrain components or specifications by entering keywords such as 'transmission', 'differential', or 'driveshaft'.

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

Key Specifications

Engine Power

210 PS (154 kW)

Torque

270 Nm (199 lb-ft)

Transmission Type

6-speed manual

Driveshaft Length

1200 mm

Brake Disc Diameter (Front)

312 mm

Available Specifications

Engine and Transmission

Details about the engine and transmission setup, including specifications and technical data

Engine Specifications

1.8L 20V Turbocharged Inline-4 engine
Power output: 210 PS (154 kW) at 5800 rpm
Torque: 270 Nm (199 lb-ft) at 2100-5000 rpm
Bore x Stroke: 81.0 mm x 86.4 mm
Compression ratio: 9.5:1

Transmission Specifications

6-speed manual transmission (02M)
Front-wheel drive with Haldex all-wheel drive system
Gear ratios: 1st - 3.300, 2nd - 1.944, 3rd - 1.308, 4th - 0.969, 5th - 0.806, 6th - 0.680
Final drive ratio: 4.235
Haldex coupling with electronic control

Note: The Haldex system provides dynamic torque distribution between the front and rear axles.

Driveshaft and Differential

Technical details about the driveshaft and differential components

Driveshaft Specifications

Two-piece driveshaft with center support bearing
Material: High-strength steel
Length: 1200 mm (front to rear)
Diameter: 80 mm
Weight: 12.5 kg

Differential Specifications

Front differential: Open type with Torsen limited-slip functionality
Rear differential: Open type with Haldex coupling
Differential ratio: 4.235
Oil capacity: 1.2 liters (front), 0.8 liters (rear)
Oil type: SAE 75W-90 GL-5

Note: The Torsen differential provides improved traction during cornering.

Suspension and Steering

Information about the suspension and steering systems related to the drivetrain

Suspension Specifications

Front suspension: MacPherson strut with lower control arms
Rear suspension: Multi-link independent setup
Spring rates: Front - 25 N/mm, Rear - 30 N/mm
Shock absorber type: Gas-filled telescopic
Anti-roll bar diameter: Front - 22 mm, Rear - 18 mm

Steering Specifications

Steering type: Rack-and-pinion with hydraulic power assist
Steering ratio: 16.5:1
Turning circle: 10.9 meters
Steering wheel diameter: 370 mm
Hydraulic pressure: 90 bar

Note: The steering system is designed for precise handling and feedback.

Braking System

Details about the braking system and its integration with the drivetrain

Brake Specifications

Front brakes: 312 mm ventilated discs with single-piston calipers
Rear brakes: 256 mm solid discs with single-piston calipers
Brake pad material: Semi-metallic
Brake fluid type: DOT 4
Brake system: Dual-circuit hydraulic with ABS

ABS and Traction Control

ABS system: Bosch 5.3 with electronic brake force distribution (EBD)
Traction control: Integrated with Haldex all-wheel drive system
Brake assist: Hydraulic Brake Assist (HBA)
Stopping distance (100-0 km/h): 36 meters
Pedal travel: 120 mm

Note: The ABS system ensures optimal braking performance under all conditions.

Search Specifications

Search by specification name, value, or description

Component Specifications

Transmission

Type: 6-speed manual

Gear Ratios: 1st: 3.300:1
2nd: 1.944:1
3rd: 1.308:1
4th: 0.967:1
5th: 0.806:1
6th: 0.680:1
Reverse: 3.500:1

Final Drive Ratio: 4.235:1

Part Number: 02J 300 043

Fluid Capacity: 2.6 liters

Fluid Type: G 052 726 A2 (Synthetic Gear Oil)

Clutch

Type: Single dry plate diaphragm spring

Diameter: 228 mm

Part Number: 06B 141 033

Torque Capacity: 350 Nm

Wear Limit: 1.5 mm

Differential

Type: Torsen T-2 limited-slip differential

Front Axle Ratio: 4.235:1

Rear Axle Ratio: 4.235:1

Part Number: 02J 409 051

Oil Capacity: 1.1 liters

Oil Type: G 052 145 A2 (Synthetic Differential Oil)

Driveshafts

Front Axle: Type: Constant velocity joint
Part Number: 8N0 407 272
Length: 620 mm
Maximum Angle: 45 degrees

Rear Axle: Type: Constant velocity joint
Part Number: 8N0 407 273
Length: 580 mm
Maximum Angle: 45 degrees

Transfer Case

Type: Haldex multi-plate clutch

Part Number: 02D 525 558

Oil Capacity: 0.75 liters

Oil Type: G 052 175 A1 (Synthetic Transfer Case Oil)

Operational Temperature Range: -40°C to 120°C

Axles

Front: Type: Independent, MacPherson strut
Part Number: 8N0 407 151
Track Width: 1527 mm
Wheel Bearing Type: Tapered roller bearing

Rear: Type: Independent, multi-link
Part Number: 8N0 500 051
Track Width: 1501 mm
Wheel Bearing Type: Tapered roller bearing

Propeller Shaft

Type: Two-piece, balanced

Part Number: 8N0 521 101

Length: 1200 mm

Material: High-strength steel

Maximum Rpm: 6000 rpm

Wheel Hubs

Front: Type: Bolt-on
Part Number: 8N0 407 615
Bolt Pattern: 5x100
Center Bore: 57.1 mm

Rear: Type: Bolt-on
Part Number: 8N0 407 616
Bolt Pattern: 5x100
Center Bore: 57.1 mm

Suspension

Front: Type: MacPherson strut
Spring Rate: 25 N/mm
Shock ABSorber Type: Gas-filled
Part Number: 8N0 412 031

Rear: Type: Multi-link
Spring Rate: 22 N/mm
Shock ABSorber Type: Gas-filled
Part Number: 8N0 512 031

Brakes

Front: Type: Ventilated disc
Diameter: 312 mm
Thickness: 25 mm
Part Number: 8N0 615 301

Rear: Type: Solid disc
Diameter: 256 mm
Thickness: 12 mm
Part Number: 8N0 615 401

Service Information Service

Detailed service requirements and schedules for the drivetrain system

10000

Check transmission fluid level
Inspect clutch operation
Check differential oil level

Ensure all fluids are at the correct level and free from contamination

30000

Replace transmission fluid
Inspect driveshafts for wear
Check transfer case oil level

Use only manufacturer-recommended fluids

60000

Replace differential oil
Inspect wheel bearings
Check suspension components

Replace any worn or damaged components

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of drivetrain does the 1999-2003 Audi S3 use?

The 1999-2003 Audi S3 features a quattro all-wheel-drive (AWD) system with a Torsen T-2 center differential. This system provides a 50:50 torque split under normal conditions but can dynamically adjust torque distribution between the front and rear axles based on traction needs.

What is the gear ratio of the 6-speed manual transmission in the Audi S3?

The 6-speed manual transmission in the 1999-2003 Audi S3 has the following gear ratios: 1st gear - 3.500:1, 2nd gear - 2.118:1, 3rd gear - 1.517:1, 4th gear - 1.148:1, 5th gear - 0.919:1, 6th gear - 0.778:1. The final drive ratio is 4.235:1.

What is the torque capacity of the Audi S3's drivetrain?

The drivetrain of the 1999-2003 Audi S3 is designed to handle up to 280 Nm (206 lb-ft) of torque, which matches the engine's output. The Torsen differential and reinforced components ensure reliable power delivery under high-performance conditions.

How often should the Haldex coupling fluid be replaced in the Audi S3?

The Haldex coupling fluid in the Audi S3 should be replaced every 30,000 miles (48,000 km) or every 3 years, whichever comes first. This ensures optimal performance of the AWD system and prevents premature wear of the coupling components.

What is the recommended service interval for the transmission fluid in the Audi S3?

Audi recommends replacing the transmission fluid in the 6-speed manual transmission every 60,000 miles (96,000 km) or every 5 years. Use only Audi-approved synthetic transmission fluid (part number G 052 911 A2) to maintain proper lubrication and performance.

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 S3 Drivetrain Technical Manual

Coming Soon

Official technical documentation covering the quattro AWD system, transmission, and drivetrain components for the 1999-2003 Audi S3.

Haldex Coupling Service Guide

Coming Soon

Step-by-step instructions for servicing the Haldex coupling, including fluid replacement and system diagnostics.

Audi S3 Transmission Fluid Specifications

Coming Soon

Detailed information on the recommended transmission fluid types and specifications for the 6-speed manual transmission.

Quattro AWD System Overview

Coming Soon

An in-depth explanation of the Torsen T-2 differential and its operation in the Audi S3's quattro AWD system.

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