Audi Audi S8 1996-2011

Audi Audi S8 1996-2011 AL450 Transmission Specifications

Detailed technical specifications for the AL450 transmission system used in the 1996-2011 Audi S8. This document covers gear ratios, torque capacity, fluid requirements, service intervals, and diagnostic procedures specific to the AL450 transmission.

Updated Oct 14, 2023

Overview Specifications

Comprehensive description of the al450-transmission specifications for the 1996-2011 Audi S8, including key features, measurements, and technical details

How to Use

Use the search function to locate specific al450-transmission specifications by entering keywords such as 'torque converter', 'gear ratios', or 'fluid capacity'.

Navigate through the documentation by selecting the desired section from the table of contents. Each section is organized into subsections for detailed technical information.

Key Specifications

Transmission Type

5-speed automatic with Tiptronic

Maximum Torque Capacity

440 Nm (324 lb-ft)

Fluid Capacity

9.5 liters (10.0 quarts)

Weight

120 kg (264.6 lbs)

Shift Time

<200 ms (Sport mode)

Available Specifications

Transmission Design and Configuration

Details about the design, layout, and configuration of the al450-transmission used in the 1996-2011 Audi S8

Transmission Type and Layout

5-speed automatic transmission with Tiptronic functionality
Longitudinal mounting for rear-wheel-drive-based Quattro all-wheel-drive system
Torque converter with lock-up clutch for improved efficiency
Electronically controlled hydraulic valve body

Gear Ratios and Shift Logic

1st gear ratio: 3.57:1
2nd gear ratio: 2.20:1
3rd gear ratio: 1.51:1
4th gear ratio: 1.00:1
5th gear ratio: 0.80:1
Reverse gear ratio: 3.36:1

Note: Shift logic is adaptive and adjusts based on driving style and conditions.

Performance and Capabilities

Technical specifications related to the performance and operational capabilities of the al450-transmission

Torque Handling and Power Delivery

Maximum torque capacity: 440 Nm (324 lb-ft)
Designed for engines up to 4.2L V8 with 360 PS (265 kW)
Smooth power delivery with minimal lag during shifts
Optimized for high-performance driving conditions

Shift Times and Responsiveness

Shift times under 200 milliseconds in Sport mode
Manual mode allows for driver-controlled shifts via steering wheel paddles
Adaptive shift mapping for improved throttle response

Note: Shift times may vary slightly depending on driving conditions and transmission temperature.

Maintenance and Fluid Specifications

Information on maintenance requirements and fluid specifications for the al450-transmission

Transmission Fluid Requirements

Recommended fluid: Audi Genuine ATF (part number G 052 162 A2)
Fluid capacity: 9.5 liters (10.0 quarts) including torque converter
Fluid change interval: Every 60,000 miles or 6 years
Fluid operating temperature range: -40°C to 150°C (-40°F to 302°F)

Service and Inspection Intervals

Inspect transmission fluid level every 15,000 miles
Replace transmission filter during fluid changes
Check for leaks and wear during routine maintenance
Reset adaptation values after fluid changes

Note: Use only Audi-approved fluids and components for optimal performance.

Dimensions and Weight

Physical dimensions and weight specifications of the al450-transmission

Transmission Dimensions

Length: 720 mm (28.3 in)
Width: 480 mm (18.9 in)
Height: 380 mm (15.0 in)
Weight: 120 kg (264.6 lbs) including fluid

Mounting and Clearance Requirements

Mounting points designed for Audi S8 chassis
Minimum clearance of 50 mm (2.0 in) around transmission for cooling
Compatible with Audi Quattro drivetrain components

Note: Ensure proper alignment during installation to avoid drivetrain vibration.

Search Specifications

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Transmission Specifications

General information

Transmission Type: 6-speed automatic

Manufacturer: ZF Friedrichshafen AG

Model Code: AL450

Applicable Models

1996-2011 Audi S8

Part Number: 01E 300 050

Weight: 98 kg (216 lbs)

Gear Ratios

1st Gear: 4.148:1

2nd Gear: 2.370:1

3rd Gear: 1.556:1

4th Gear: 1.155:1

5th Gear: 0.859:1

6th Gear: 0.686:1

Reverse Gear: 3.394:1

Torque Capacity

Maximum input Torque: 550 Nm (406 lb-ft)

Recommended Operating Torque: 500 Nm (369 lb-ft)

Torque Converter Lockup Speed: 1800-2200 rpm

Fluid Specifications

Fluid Type: ZF Lifeguard 6

Fluid Capacity: 9.5 liters (10.0 quarts)

Fluid Change interval: 60,000 miles or 5 years

Fluid Temperature Range: -40°C to 150°C (-40°F to 302°F)

Operational Parameters

Maximum Operating Speed: 7000 rpm

Shift Response Time: 120-150 ms

Towing Capacity: 2000 kg (4409 lbs)

Maximum Allowable Engine Power: 450 hp

Tolerances And Clearances

Gear Mesh Clearance: 0.10-0.15 mm (0.0039-0.0059 in)

input Shaft End Play: 0.05-0.10 mm (0.0020-0.0039 in)

Output Shaft End Play: 0.08-0.12 mm (0.0031-0.0047 in)

Clutch Pack Clearance: 1.2-1.5 mm (0.0472-0.0591 in)

Diagnostic Specifications

Diagnostic interface: OBD-II

Fault Code Readout: ZF-specific codes via VAG-COM

Common Fault Codes

P0700
P0715
P0720

Diagnostic Procedure: Use VAG-COM or equivalent scan tool

Maintenance Specifications

Filter Replacement interval: 60,000 miles or 5 years

Filter Part Number: 01E 325 429

Seal Kit Part Number: 01E 398 171

Gasket Part Number: 01E 321 345

Recommended Tools

ZF service tool kit
VAG-COM

Safety information

Warning: Do not exceed maximum torque or speed limits

Fluid Handling: Use gloves and eye protection when handling transmission fluid

Disposal: Dispose of used fluid and filters according to local regulations

Related Components

Torque Converter Part Number: 01E 325 021

Valve Body Part Number: 01E 325 045

Solenoid Pack Part Number: 01E 325 067

Cross References

ZF 6HP26A
Audi 01E

Service Information Service

Detailed service requirements and schedules for the AL450 transmission

30,000 miles

24 months

Check transmission fluid level
Inspect for leaks
Reset adaptation values

Use only ZF Lifeguard 6 fluid

60,000 miles

60 months

Replace transmission fluid
Replace transmission filter
Inspect valve body and solenoids

Perform adaptation reset after fluid change

120,000 miles

120 months

Inspect clutch packs
Check gear mesh and clearances
Replace seals and gaskets

Use OEM parts for replacement

Common Questions

Find answers to common questions about torque specifications

What type of transmission is the AL450 in the 1996-2011 Audi S8?

The AL450 is a 5-speed automatic transmission with Tiptronic functionality, designed for longitudinal engine placement. It features a torque converter and is capable of handling up to 450 Nm of torque, making it suitable for high-performance applications.

What is the recommended transmission fluid for the AL450?

Audi recommends using G 052 162 A2 transmission fluid for the AL450. The fluid capacity is approximately 9.5 liters, including the torque converter. Always ensure the fluid is at the correct operating temperature (35-45°C) when checking or refilling.

How often should the AL450 transmission fluid be changed?

Audi recommends changing the transmission fluid and filter every 60,000 miles or 6 years, whichever comes first. Severe driving conditions, such as frequent towing or high-performance use, may require more frequent service intervals.

What are the common symptoms of AL450 transmission failure?

Common symptoms include delayed or harsh shifting, slipping gears, transmission fluid leaks, and warning lights such as the 'Transmission Fault' or 'Check Engine' light. If any of these symptoms occur, it is critical to have the transmission inspected by a qualified technician.

Can the AL450 transmission be repaired or rebuilt?

Yes, the AL450 transmission can be repaired or rebuilt. However, due to its complex design and precise tolerances, it is recommended to have the work performed by a certified Audi technician using genuine Audi parts to ensure proper functionality and longevity.

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 AL450 Transmission Service Manual

Coming Soon

Official service manual for the AL450 transmission, including detailed repair procedures, torque specifications, and diagnostic codes.

Audi Transmission Fluid Specifications

Coming Soon

Technical bulletin outlining the approved transmission fluids for Audi vehicles, including the AL450.

AL450 Transmission Diagnostic Guide

Coming Soon

Step-by-step guide for diagnosing common issues with the AL450 transmission, including fault codes and troubleshooting tips.

Audi Genuine Parts Catalog

Coming Soon

Catalog of genuine Audi parts for the AL450 transmission, including seals, gaskets, and internal components.

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Technical Information

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