Audi Audi S4 1997-2002

Audi Audi S4 1997-2002 Drivetrain Specifications

Detailed technical specifications and maintenance guide for the 1997-2002 Audi S4 drivetrain system, including the quattro all-wheel-drive system, transmission, differential, and driveshaft components.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the drivetrain specifications for the 1997-2002 Audi S4, including key features, measurements, and technical details. This manual covers the Quattro all-wheel-drive system, transmission, differentials, and related components.

How to Use

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

Navigate through the drivetrain documentation sections using the table of contents or by scrolling through the manual. Each section is labeled with a title and includes detailed subsections.

Key Specifications

Torque Split

50:50 front to rear

Final Drive Ratio

4.11:1

Driveshaft Length

1,250 mm

Clutch Disc Diameter

240 mm

Maximum Torque Bias Ratio

2.5:1

Available Specifications

Quattro All-Wheel-Drive System

Details about the Audi Quattro all-wheel-drive system, including its configuration, torque distribution, and key components.

System Configuration

Permanent all-wheel-drive system with Torsen T-2 center differential
Default torque split: 50:50 front to rear
Dynamic torque redistribution based on traction conditions
Integrated with electronic stability control (ESC)

Torsen T-2 Differential

Mechanical torque-sensing differential
Maximum torque bias ratio: 2.5:1
No electronic controls, purely mechanical operation
Designed for high-performance and reliability

Note: The Torsen T-2 differential is maintenance-free under normal operating conditions.

Transmission Specifications

Technical details about the manual and automatic transmission options available for the 1997-2002 Audi S4.

6-Speed Manual Transmission

Gear ratios: 1st - 3.67:1, 2nd - 2.05:1, 3rd - 1.41:1, 4th - 1.07:1, 5th - 0.87:1, 6th - 0.73:1
Final drive ratio: 4.11:1
Dual-mass flywheel for reduced vibration
Hydraulic clutch system with 240 mm clutch disc

5-Speed Tiptronic Automatic Transmission

Gear ratios: 1st - 3.67:1, 2nd - 2.05:1, 3rd - 1.41:1, 4th - 1.00:1, 5th - 0.74:1
Final drive ratio: 4.11:1
Integrated manual shift mode (Tiptronic)
Torque converter lock-up clutch for improved efficiency

Note: The Tiptronic transmission requires regular fluid changes every 60,000 miles.

Front and Rear Differentials

Specifications for the front and rear differentials, including their design and performance characteristics.

Front Differential

Integrated with the transmission housing
Open differential design
Final drive ratio: 4.11:1
Sealed unit with lifetime lubrication

Rear Differential

Independent housing mounted on the rear subframe
Open differential design
Final drive ratio: 4.11:1
Sealed unit with lifetime lubrication

Note: The rear differential is prone to wear under high-stress conditions; inspect regularly for leaks or noise.

Driveshaft and Axles

Technical details about the driveshaft and axle components, including their construction and specifications.

Driveshaft

Two-piece design with center support bearing
Constructed from high-strength steel
Length: 1,250 mm (front to rear)
Balanced for high-speed operation

Axles

CV joint design for front and rear axles
Axle diameter: 26 mm
Spline count: 28 (front), 32 (rear)
Sealed CV joints with lifetime lubrication

Note: CV joints should be inspected for wear or damage during routine maintenance.

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Component Specifications

Engine

Type: 2.7L V6 Bi-Turbo

Displacement: 2671 cc

Compression Ratio: 9.3:1

Max Power: 261 hp @ 5800 rpm

Max Torque: 295 lb-ft @ 1850-3600 rpm

Part Number: 078 103 701 A

Transmission

Type: 6-speed manual (01E)

Gear Ratios: 1st: 3.500:1
2nd: 2.105:1
3rd: 1.429:1
4th: 1.088:1
5th: 0.885:1
6th: 0.707:1
Reverse: 3.333:1

Final Drive Ratio: 4.111:1

Part Number: 01E 300 043 D

Transfer Case

Type: Torsen T-2 center differential

Torque Split: 50:50 front/rear

Part Number: 01E 409 010 A

Front Differential

Type: Open differential

Gear Ratio: 4.111:1

Part Number: 01E 409 020 B

Rear Differential

Type: Torsen T-2 limited-slip differential

Gear Ratio: 4.111:1

Part Number: 01E 409 030 C

Driveshaft

Material: Steel

Length: 72.5 inches

Diameter: 3.0 inches

Part Number: 01E 521 101 D

Axles

Front: Type: CV joint
Part Number: 01E 498 101 A

Rear: Type: CV joint
Part Number: 01E 498 102 B

Clutch

Type: Single dry plate

Diameter: 240 mm

Material: Organic

Part Number: 01E 141 025 C

Fluid Specifications

Engine Oil: Type: Synthetic 5W-40
Capacity: 6.3 liters

Transmission Fluid: Type: Gear oil SAE 75W-90
Capacity: 2.6 liters

Differential Fluid: Type: Gear oil SAE 75W-90
Capacity: 1.2 liters (front), 1.5 liters (rear)

Operational Limits

Max Rpm: 6500 rpm

Max Speed: 155 mph (electronically limited)

Max Towing Capacity: Not recommended

Maintenance

Oil Change interval: 5000 miles or 6 months

Transmission Service interval: 60000 miles

Differential Service interval: 60000 miles

Clutch Life Expectancy: 60000-100000 miles

Diagnostics

Common Issues

Turbocharger failure
Timing belt tensioner failure
Differential wear

Diagnostic Codes

P0299 - Turbocharger underboost
P0300 - Random/multiple cylinder misfire
P0420 - Catalyst system efficiency below threshold

Service Information Service

Detailed service requirements and schedules for the 1997-2002 Audi S4 drivetrain

5000

Engine oil and filter change
Inspect turbocharger system
Check transmission and differential fluid levels

Use only Audi-approved synthetic oil

30000

Inspect timing belt and tensioner
Check clutch operation
Inspect driveshaft and CV joints

Replace timing belt every 60000 miles

60000

Replace transmission fluid
Replace differential fluid
Inspect and replace worn suspension components

Use only Audi-approved gear oil

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of drivetrain is used in the 1997-2002 Audi S4?

The 1997-2002 Audi S4 utilizes a quattro all-wheel-drive (AWD) system, which distributes power to all four wheels via a mechanical differential system. The drivetrain includes a 6-speed manual transmission with a torque output of 310 Nm and a power rating of 210 kW.

What is the gear ratio for the 1997-2002 Audi S4 drivetrain?

The gear ratios for the 6-speed manual transmission are as follows: 1st gear 3.67, 2nd gear 1.98, 3rd gear 1.37, 4th gear 1.01, 5th gear 0.85, and 6th gear 0.73. The final drive ratio is 3.01.

How does the quattro system in the 1997-2002 Audi S4 function?

The quattro system in the Audi S4 uses a mechanical differential to distribute torque between the front and rear axles. It employs a 50:50 torque split under normal conditions, but can dynamically adjust based on driving conditions to optimize traction and stability.

What maintenance is required for the drivetrain of the 1997-2002 Audi S4?

Regular maintenance includes checking and replacing transmission fluid every 60,000 km, inspecting the quattro differential for wear, and ensuring proper lubrication of the drivetrain components. Periodic alignment checks of the drivetrain are also recommended.

What is the torque capacity of the 1997-2002 Audi S4 drivetrain?

The drivetrain of the 1997-2002 Audi S4 is capable of handling a maximum torque of 310 Nm, which is generated by the 2.8-liter V6 engine. This torque is efficiently distributed through the quattro AWD system.

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 Drivetrain Maintenance Guide

Coming Soon

Comprehensive guide on maintaining the quattro drivetrain, including fluid replacement, differential inspection, and alignment checks.

Quattro System Technical Manual

Coming Soon

Detailed technical manual explaining the operation, maintenance, and troubleshooting of the quattro all-wheel-drive system in the Audi S4.

Audi S4 Transmission Specifications

Coming Soon

Exact specifications for the 6-speed manual transmission used in the 1997-2002 Audi S4, including gear ratios and torque handling.

Drivetrain Safety and Warranty Information

Coming Soon

Important safety warnings and warranty implications related to the drivetrain components of the Audi S4.

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