Audi Audi S4 2003-2008 Drivetrain Specifications
Detailed technical specifications and documentation for the 2003-2008 Audi S4 drivetrain system, including the quattro all-wheel-drive, transmission, differential, and driveshaft components. Essential for technicians and enthusiasts.
Overview Specifications
Comprehensive description of the drivetrain specifications for the 2003-2008 Audi S4, 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 type', 'differential ratio', or 'driveshaft torque'.
Navigate through the drivetrain documentation by selecting the relevant section from the table of contents. Each section is organized by major drivetrain components and their respective subsections.
Key Specifications
Engine Displacement
4.2L
Transmission Type
6-speed manual / 6-speed automatic
Torque Output
302 lb-ft @ 3500 rpm
Final Drive Ratio
3.889:1
Towing Capacity
4409 lbs
Available Specifications
Engine and Transmission
Details about the engine and transmission configuration, including power delivery and gear ratios
Engine and Transmission
Details about the engine and transmission configuration, including power delivery and gear ratios
Engine Specifications
- 4.2L V8 naturally aspirated engine
- Power output: 339 hp @ 7000 rpm
- Torque: 302 lb-ft @ 3500 rpm
- Redline: 7200 rpm
Transmission Options
- 6-speed manual transmission (standard)
- 6-speed Tiptronic automatic transmission (optional)
- Manual gear ratios: 1st - 3.667:1, 2nd - 2.050:1, 3rd - 1.462:1, 4th - 1.133:1, 5th - 0.919:1, 6th - 0.778:1
- Final drive ratio: 3.889:1
Note: The manual transmission is preferred for performance driving due to its direct power delivery.
All-Wheel Drive System
Technical details of the quattro all-wheel drive system, including differentials and torque distribution
All-Wheel Drive System
Technical details of the quattro all-wheel drive system, including differentials and torque distribution
quattro AWD System
- Torsen T-2 center differential
- Default torque split: 40% front / 60% rear
- Dynamic torque distribution based on traction conditions
- Rear sport differential (optional) for enhanced handling
Differential Specifications
- Front differential: Open type
- Rear differential: Open type (standard), or Torsen limited-slip (optional)
- Rear sport differential torque bias: up to 80% to one wheel
Note: The rear sport differential improves cornering stability and traction.
Driveshaft and Axles
Information about the driveshaft, axles, and their respective specifications
Driveshaft and Axles
Information about the driveshaft, axles, and their respective specifications
Driveshaft
- Two-piece aluminum driveshaft
- Length: 1.2 meters (approx.)
- Maximum torque capacity: 400 lb-ft
- Balanced for high-speed operation
Axles
- Front axle: Double-wishbone suspension
- Rear axle: Multi-link suspension
- Axle shaft diameter: 32 mm
- CV joints rated for 300,000 km under normal conditions
Performance and Towing
Performance metrics and towing capabilities of the drivetrain
Performance and Towing
Performance metrics and towing capabilities of the drivetrain
Acceleration and Top Speed
- 0-60 mph: 5.6 seconds (manual), 5.9 seconds (automatic)
- Top speed: 155 mph (electronically limited)
- Quarter-mile time: 14.1 seconds (manual)
Towing Capacity
- Maximum towing capacity: 4409 lbs (2000 kg)
- Tongue weight limit: 440 lbs (200 kg)
- Requires factory-approved towing package
Note: Ensure proper cooling and braking systems are in place for towing.
Search Specifications
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Component Specifications
Engine
- Type
- V8
- Displacement
- 4.2L
- Power Output
- 339 hp @ 7000 rpm
- Torque Output
- 302 lb-ft @ 3500 rpm
- Compression Ratio
- 12.5:1
- Fuel System
- Direct Fuel Injection (FSI)
- Part Number
- 07L100031
Transmission
- Type
- 6-speed manual / 6-speed Tiptronic automatic
- Gear Ratios
- 1st: 3.67:12nd: 2.05:13rd: 1.41:14th: 1.13:15th: 0.92:16th: 0.78:1Reverse: 3.17:1
- Final Drive Ratio
- 3.889:1
- Part Number Manual
- 0A3121001A
- Part Number Automatic
- 09E300050
Transfer Case
- Type
- Torsen T-3 center differential
- Torque Split
- 40:60 (front:rear)
- Part Number
- 0A6400001
Differential
- Front
- Type: Open differentialGear Ratio: 3.889:1Part Number: 0A6400002
- Rear
- Type: Open differentialGear Ratio: 3.889:1Part Number: 0A6400003
Driveshaft
- Material
- Aluminum
- Length
- 72.5 inches
- Diameter
- 3.5 inches
- Part Number
- 0A6400004
Axles
- Front
- Type: CV jointPart Number: 0A6400005
- Rear
- Type: CV jointPart Number: 0A6400006
Clutch
- Type
- Single-plate dry clutch
- Diameter
- 240 mm
- Material
- Organic
- Part Number
- 0A6400007
Fluid Capacities
- Engine Oil
- 8.5 quarts
- Transmission Manual
- 2.6 quarts
- Transmission Automatic
- 9.3 quarts
- Transfer Case
- 1.1 quarts
- Differential Front
- 1.3 quarts
- Differential Rear
- 1.3 quarts
Operational Parameters
- Max Engine Rpm
- 7200 rpm
- Max Transmission Temp
- 250°F
- Max Transfer Case Temp
- 220°F
- Max Differential Temp
- 200°F
Maintenance
- Oil Change interval
- 5000 miles or 6 months
- Transmission Fluid Change interval
- 40000 miles or 4 years
- Differential Fluid Change interval
- 60000 miles or 6 years
- Transfer Case Fluid Change interval
- 60000 miles or 6 years
Diagnostics
- Common Issues
-
- Driveshaft vibration due to worn CV joints
- Transfer case noise due to low fluid level
- Differential whine due to improper gear mesh
- Diagnostic Codes
-
- P0730 - Incorrect gear ratio
- P0700 - Transmission control system malfunction
- P1889 - Transfer case 2-wheel drive solenoid circuit malfunction
Service Information Service
Detailed service requirements and schedules for the 2003-2008 Audi S4 drivetrain
- Engine oil and filter change
- Inspect drivetrain components for leaks
- Check transmission fluid level
Use only Audi-approved fluids and filters
- Change transmission fluid
- Inspect clutch wear (manual transmission)
- Check transfer case fluid level
Replace transmission fluid with Audi-approved fluid
- Change differential fluid
- Change transfer case fluid
- Inspect driveshaft and CV joints
Use only Audi-approved differential and transfer case fluids
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of drivetrain does the 2003-2008 Audi S4 use?
What type of drivetrain does the 2003-2008 Audi S4 use?
The 2003-2008 Audi S4 features a quattro all-wheel-drive (AWD) system with a Torsen T-2 center differential. This system provides a 40:60 torque split under normal conditions, favoring the rear wheels for a sportier driving experience.
Q2 What is the gear ratio of the 6-speed manual transmission in the Audi S4?
What is the gear ratio of the 6-speed manual transmission in the Audi S4?
The 6-speed manual transmission in the 2003-2008 Audi S4 has the following gear ratios: 1st gear - 3.667:1, 2nd gear - 2.050:1, 3rd gear - 1.462:1, 4th gear - 1.133:1, 5th gear - 0.919:1, 6th gear - 0.778:1, with a final drive ratio of 3.889:1.
Q3 What is the torque capacity of the Torsen T-2 differential in the Audi S4?
What is the torque capacity of the Torsen T-2 differential in the Audi S4?
The Torsen T-2 differential in the 2003-2008 Audi S4 is capable of handling up to 332 lb-ft of torque, which matches the engine's output. It provides excellent traction and stability under various driving conditions.
Q4 How often should the drivetrain fluids be replaced in the Audi S4?
How often should the drivetrain fluids be replaced in the Audi S4?
Audi recommends replacing the transmission fluid and differential fluids every 40,000 miles or 4 years, whichever comes first. Use only Audi-approved fluids, such as G 052 145 A2 for the transmission and G 052 145 S2 for the differentials, to ensure optimal performance and longevity.
Q5 What are the symptoms of a failing driveshaft in the Audi S4?
What are the symptoms of a failing driveshaft in the Audi S4?
Common symptoms of a failing driveshaft include vibrations during acceleration, clunking noises when shifting gears, and uneven tire wear. If these symptoms occur, inspect the driveshaft for wear or damage and replace it with genuine Audi parts to maintain drivetrain integrity.
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 Service Manual
Coming SoonOfficial service manual for the 2003-2008 Audi S4 drivetrain, including detailed procedures for maintenance and repair.
Torsen Differential Technical Guide
Coming SoonComprehensive guide on the Torsen T-2 differential used in the Audi S4, including operation, maintenance, and troubleshooting tips.
Audi S4 Drivetrain Fluid Specifications
Coming SoonDetailed list of recommended fluids for the transmission, differentials, and transfer case in the 2003-2008 Audi S4.
Driveshaft Inspection and Replacement Guide
Coming SoonStep-by-step instructions for inspecting and replacing the driveshaft in the Audi S4, including torque specifications and safety precautions.
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Technical Information
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