Audi Audi TT 1998-2006

Audi Audi TT 1998-2006 AL450 Transmission Specifications

Comprehensive technical specifications for the AL450 transmission system used in the 1998-2006 Audi TT. This document covers gear ratios, torque capacity, fluid requirements, shift patterns, and maintenance intervals specific to the AL450 transmission.

Updated Oct 14, 2023

Overview Specifications

Comprehensive description of the al450-transmission specifications for the 1998-2006 Audi TT, 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 'gear ratios', 'torque capacity', or 'fluid capacity'.

Navigate through the documentation sections using the table of contents or by scrolling through the major sections. Each section is labeled with a title and contains subsections for detailed information.

Key Specifications

Transmission Type

5-speed manual

Torque Capacity

250 Nm (184 lb-ft)

Fluid Capacity

2.6 liters (2.75 quarts)

Dry Weight

38 kg (83.8 lbs)

Gear Ratios

1st: 3.50:1, 5th: 0.73:1

Available Specifications

Transmission Design and Layout

Details about the design, layout, and construction of the al450-transmission used in the 1998-2006 Audi TT

Transmission Type and Configuration

Front-wheel drive (FWD) configuration
5-speed manual transmission
Transverse-mounted design
Aluminum alloy casing for reduced weight
Integrated final drive unit

Gear Ratios

1st gear: 3.50:1
2nd gear: 1.89:1
3rd gear: 1.23:1
4th gear: 0.89:1
5th gear: 0.73:1
Reverse gear: 3.67:1

Note: Gear ratios optimized for balanced performance and fuel efficiency.

Performance Specifications

Technical details about the performance capabilities of the al450-transmission

Torque Capacity

Maximum torque capacity: 250 Nm (184 lb-ft)
Designed for engines up to 1.8L turbocharged
Synchronized gear engagement for smooth shifting
Dual-mass flywheel for reduced vibrations

Shift Mechanism

Cable-operated shift linkage
Short-throw shifter for precise gear changes
Hydraulic clutch system
Clutch pedal travel: 120 mm (4.7 in)

Note: Shift mechanism designed for sporty driving dynamics.

Maintenance and Fluid Specifications

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

Transmission Fluid

Recommended fluid: Audi Genuine G 052 512 A2
Fluid capacity: 2.6 liters (2.75 quarts)
Fluid change interval: 60,000 miles or 5 years
Synthetic oil for improved lubrication

Service Intervals

Inspect clutch system every 30,000 miles
Check transmission mounts for wear every 50,000 miles
Replace synchronizer rings if shifting becomes difficult
Lubricate shift linkage every 20,000 miles

Note: Regular maintenance ensures optimal performance and longevity.

Dimensions and Weight

Physical dimensions and weight specifications of the al450-transmission

Transmission Dimensions

Length: 550 mm (21.65 in)
Width: 450 mm (17.72 in)
Height: 350 mm (13.78 in)
Input shaft diameter: 25 mm (0.98 in)

Weight

Dry weight: 38 kg (83.8 lbs)
Weight with fluid: 40 kg (88.2 lbs)
Lightweight design for improved vehicle balance

Note: Weight measurements include all internal components.

Search Specifications

Search by specification name, value, or description

Transmission Specifications

General information

Transmission Type: 5-speed manual

Model Code: AL450

Manufacturer: Audi AG

Applicable Years

1998
1999
2000
2001
2002
2003
2004
2005
2006

Part Number: 01E300043A

Weight: 75 kg (165.3 lbs)

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

Fluid Capacity: 2.6 liters (2.75 quarts)

Gear Ratios

1st Gear: 3.778:1

2nd Gear: 2.118:1

3rd Gear: 1.429:1

4th Gear: 1.029:1

5th Gear: 0.837:1

Reverse Gear: 3.600:1

Final Drive Ratio: 4.235:1

Torque Specifications

Bellhousing Bolts: 25 Nm (18.4 ft-lbs)

Drive Flange Nut: 200 Nm (147.5 ft-lbs)

Clutch Pressure Plate Bolts: 25 Nm (18.4 ft-lbs)

Transmission Mount Bolts: 40 Nm (29.5 ft-lbs)

Shift Linkage Bolts: 25 Nm (18.4 ft-lbs)

Operational Parameters

Maximum input Torque: 310 Nm (228.6 ft-lbs)

Maximum Engine Speed: 7000 rpm

Operating Temperature Range: -40°C to 120°C (-40°F to 248°F)

Recommended Shift Speed: 2500-3000 rpm

Clutch System

Clutch Type: Single dry disc

Clutch Diameter: 228 mm (9.0 in)

Clutch Plate Part Number: 06B141033D

Pressure Plate Part Number: 06B141117A

Release Bearing Part Number: 01E141165A

Clutch Pedal Free Play: 10-15 mm (0.39-0.59 in)

Synchronizers

Material: Brass

1st Gear Sync: Double cone

2nd Gear Sync: Double cone

3rd Gear Sync: Single cone

4th Gear Sync: Single cone

5th Gear Sync: Single cone

Shifting Mechanism

Shift Linkage Type: Cable-operated

Shift Throw: 45 mm (1.77 in)

Shift Gate Clearance: 1-2 mm (0.04-0.08 in)

Shift Rod Part Number: 8N0711045A

Shift Bushings Part Number: 8N0711311

Maintenance Specifications

Fluid Change interval: 60,000 miles or 48 months

Clutch inspection Interval: 30,000 miles or 24 months

Shift Linkage Lubrication Interval: 15,000 miles or 12 months

Recommended Fluid Grade: SAE 75W-90

Fluid Change Capacity: 2.6 liters (2.75 quarts)

Diagnostic Specifications

Common Issues

Hard shifting
Gear slippage
Noise during operation
Fluid leaks

Diagnostic Tools

VAG-COM diagnostic system
Pressure gauge for clutch hydraulics
Stethoscope for noise identification

Troubleshooting Procedures

Check fluid level and condition
Inspect clutch pedal free play
Verify shift linkage alignment
Check for worn synchronizers

Safety information

Warning: Always disconnect the battery before servicing the transmission

Note: Use only Audi-approved fluids and parts to ensure proper operation

Caution: Do not exceed the maximum input torque to avoid transmission damage

Service Information Service

Detailed service requirements and schedules for the AL450 transmission

15,000

Inspect shift linkage for wear
Lubricate shift linkage
Check transmission fluid level

Ensure all bolts are torqued to specification

30,000

Inspect clutch system
Check for fluid leaks
Verify clutch pedal free play

Replace worn components as necessary

60,000

Replace transmission fluid
Inspect synchronizers
Check for abnormal noise or vibration

Use only Audi-approved fluids

Common Questions

Find answers to common questions about torque specifications

What type of transmission is the AL450 in the 1998-2006 Audi TT?

The AL450 is a 5-speed manual transmission used in the 1998-2006 Audi TT. It features a transversely mounted layout and is designed for front-wheel-drive applications. The gear ratios are optimized for sporty driving, with a final drive ratio of 4.235:1.

What is the recommended transmission fluid for the AL450?

Audi recommends using genuine G 052 911 A2 transmission fluid for the AL450. The fluid capacity is approximately 2.4 liters (2.5 quarts). Always ensure the fluid meets VW/Audi specification TL 521 71 for optimal performance and longevity.

How do I identify if my Audi TT has the AL450 transmission?

The AL450 transmission can be identified by its 5-speed manual configuration and its transverse mounting. The transmission code is typically stamped on the transmission housing or found in the vehicle's service documentation. For the 1998-2006 Audi TT, the AL450 is commonly paired with the 1.8T engine.

What are the common issues with the AL450 transmission?

Common issues include difficulty shifting into gear, grinding noises during shifts, and premature wear of the synchronizers. These problems are often caused by improper fluid levels, worn clutch components, or lack of maintenance. Regular servicing and using genuine parts can mitigate these issues.

What is the torque rating of the AL450 transmission?

The AL450 transmission is rated to handle up to 210 Nm (155 lb-ft) of torque. This makes it suitable for the 1.8T engine in the Audi TT, which produces a maximum torque of 173 lb-ft (235 Nm) in stock configuration.

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 TT AL450 Transmission Service Manual

Coming Soon

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

Audi TT Transmission Fluid Guide

Coming Soon

Comprehensive guide on selecting and replacing transmission fluid for the AL450, including fluid specifications and capacity details.

AL450 Transmission Troubleshooting Guide

Coming Soon

Step-by-step troubleshooting guide for common AL450 transmission issues, including shift problems and noise diagnosis.

Audi TT Clutch Replacement Procedure

Coming Soon

Detailed instructions for replacing the clutch assembly in vehicles equipped with the AL450 transmission, including alignment and adjustment tips.

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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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