Audi Audi S7 2012-2018

Audi Audi S7 2012-2018 AL450 Transmission Specifications

Comprehensive technical specifications and service details for the AL450 transmission system used in the 2012-2018 Audi S7. This document covers gear ratios, torque capacity, fluid specifications, maintenance intervals, and diagnostic procedures specific to the AL450 dual-clutch transmission (S tronic).

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the al450-transmission specifications for the 2012-2018 Audi S7, 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 capacity', 'gear ratios', or 'fluid capacity'.

Navigate through the documentation sections using the table of contents or by scrolling through the major sections: General Information, Technical Specifications, Maintenance, and Troubleshooting.

Key Specifications

Transmission Type

7-speed dual-clutch automatic

Torque Capacity

550 Nm (405 lb-ft)

Fluid Capacity

7.2 liters (7.6 quarts)

Weight

120 kg (265 lbs)

Gear Ratios

1st: 3.73:1, 7th: 0.60:1

Available Specifications

General Information

Overview of the al450-transmission, including its design, application, and key features

Transmission Design

7-speed dual-clutch automatic transmission
Longitudinal mounting configuration
Designed for high-performance applications
Integrated with Audi's quattro all-wheel-drive system

Application

Exclusively used in the 2012-2018 Audi S7
Optimized for 4.0L TFSI V8 engine
Supports sport and manual shift modes
Compatible with Audi Drive Select system

Note: The al450-transmission is engineered for both performance and efficiency.

Technical Specifications

Detailed technical specifications of the al450-transmission, including gear ratios, torque capacity, and fluid requirements

Gear Ratios

1st gear: 3.73:1
2nd gear: 2.20:1
3rd gear: 1.54:1
4th gear: 1.16:1
5th gear: 0.89:1
6th gear: 0.72:1
7th gear: 0.60:1
Reverse gear: 3.30:1

Torque Capacity

Maximum torque capacity: 550 Nm (405 lb-ft)
Designed for high-torque V8 engines
Handles rapid torque delivery in sport mode

Fluid Specifications

Transmission fluid capacity: 7.2 liters (7.6 quarts)
Recommended fluid: Audi Genuine Dual Clutch Transmission Fluid
Fluid change interval: Every 60,000 miles or 6 years

Note: Use only Audi-approved transmission fluid to ensure optimal performance.

Maintenance

Guidelines for maintaining the al450-transmission, including service intervals and inspection procedures

Service Intervals

Inspect transmission fluid every 30,000 miles
Replace transmission fluid every 60,000 miles
Check for leaks and wear during routine maintenance
Perform software updates as recommended by Audi

Inspection Procedures

Check for abnormal noises during operation
Inspect clutch wear using diagnostic tools
Verify proper operation of shift paddles
Ensure smooth gear transitions in all modes

Troubleshooting

Common issues and diagnostic procedures for the al450-transmission

Common Issues

Delayed or harsh shifting
Transmission overheating
Fluid leaks from seals or gaskets
Error codes related to clutch engagement

Diagnostic Procedures

Use Audi diagnostic software to read fault codes
Check transmission fluid level and condition
Inspect wiring and connectors for damage
Perform road test to replicate reported issues

Note: Always refer to the official Audi repair manual for detailed diagnostic steps.

Search Specifications

Search by specification name, value, or description

Transmission Specifications

General information

Transmission Type: 7-speed dual-clutch automatic

Model Code: AL450

Manufacturer: Audi AG

Applicable Models

2012-2018 Audi S7

Part Number: 0B5927150A

Weight: 94.8 kg (209 lbs)

Fluid Type: Audi Genuine Dual Clutch Transmission Fluid (G 055 529 A2)

Gear Ratios

1st Gear: 4.714:1

2nd Gear: 3.143:1

3rd Gear: 2.106:1

4th Gear: 1.667:1

5th Gear: 1.285:1

6th Gear: 1.000:1

7th Gear: 0.839:1

Reverse Gear: 3.931:1

Torque Capacity

Maximum Torque: 550 Nm (405.7 lb-ft)

Recommended Torque Limit: 500 Nm (368.8 lb-ft)

Torque Converter Lockup Speed: 1500 rpm

Fluid Specifications

Fluid Capacity: 7.2 liters (7.6 quarts)

Fluid Change interval: 60,000 miles or 60 months

Fluid Viscosity: SAE 75W-90

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

Operational Parameters

Maximum input Speed: 8000 rpm

Maximum Output Speed: 7000 rpm

Shift Response Time: 200 ms

Operating Temperature Range: -30°C to 120°C (-22°F to 248°F)

Clutch System

Clutch Type: Dual wet multi-plate clutch

Clutch Pack Count: 2

Clutch Plate Thickness: 1.8 mm (0.071 in)

Clutch Engagement Pressure: 12 bar (174 psi)

Control System

Control Module Part Number: 0B5927156B

Sensor Types

Speed sensor
Temperature sensor
Pressure sensor

Shift Strategies

Comfort
Dynamic
Manual

Diagnostic interface: OBD-II compliant

Maintenance Specifications

Filter Part Number: 0B5325325A

Filter Change interval: 40,000 miles or 48 months

Sealant Type: Audi Genuine Sealant (D 176 501 A1)

Bolt Torque Specifications: Pan Bolts: 8 Nm (5.9 lb-ft)
Valve Body Bolts: 12 Nm (8.9 lb-ft)
Clutch Cover Bolts: 22 Nm (16.2 lb-ft)

Diagnostic Specifications

Fault Codes

P0700
P0715
P0720
P0730

Diagnostic Tool: VAS 6154 or equivalent

Test Procedures

Check transmission fluid level and condition
Perform adaptation of clutch and gear shifts
Monitor sensor data for anomalies

Safety information

Warning: Do not operate the transmission without proper fluid levels

Precautions

Ensure the vehicle is on a level surface during fluid checks
Use only Audi Genuine fluids and parts
Follow torque specifications precisely to avoid damage

Service Information Service

Detailed service requirements and schedules for the AL450 transmission

40,000 miles

48 months

Inspect transmission fluid level and condition
Replace transmission filter
Check for leaks and damage

Use only Audi Genuine parts and fluids

60,000 miles

60 months

Perform full transmission fluid replacement
Reset adaptation values
Inspect clutch system for wear

Ensure proper diagnostic tools are used

Common Questions

Find answers to common questions about torque specifications

What type of transmission is the AL450 in the 2012-2018 Audi S7?

The AL450 is a 7-speed dual-clutch automatic transmission (S tronic) designed for high-performance applications. It features a wet clutch system for improved durability and torque handling, with a maximum torque capacity of 550 Nm.

What is the recommended transmission fluid for the AL450?

Audi recommends using genuine Audi dual-clutch transmission fluid (part number G 055 529 A2). The fluid capacity is approximately 7.2 liters, and it should be replaced every 60,000 miles or as specified in the maintenance schedule.

How do I reset the transmission adaptation on the AL450?

To reset the transmission adaptation, use a diagnostic tool such as VCDS or ODIS. Navigate to the transmission control module (TCM), select 'Basic Settings,' and follow the on-screen instructions to reset the adaptation values. This process ensures optimal shifting performance.

What are common symptoms of a failing AL450 transmission?

Common symptoms include harsh or delayed shifting, transmission slipping, unusual noises (e.g., grinding or whining), and warning lights such as the transmission malfunction indicator. These issues may indicate problems with the mechatronic unit, clutch packs, or fluid contamination.

Can the AL450 transmission handle performance upgrades?

The AL450 is robust and can handle moderate performance upgrades. However, for significant power increases (e.g., beyond 550 Nm), a transmission software tune or hardware upgrades (e.g., reinforced clutch packs) may be required to ensure reliability.

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 S7 AL450 Transmission Service Manual

Coming Soon

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

AL450 Transmission Fluid Replacement Guide

Coming Soon

Step-by-step guide for replacing the dual-clutch transmission fluid in the AL450, including fluid specifications and safety precautions.

Mechatronic Unit Repair and Diagnostics

Coming Soon

Comprehensive resource for diagnosing and repairing the mechatronic unit in the AL450 transmission, including common fault codes and troubleshooting tips.

AL450 Transmission Tuning Options

Coming Soon

Explore performance tuning options for the AL450 transmission, including software updates and hardware modifications for enhanced durability and performance.

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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.
Vehicle specifications and procedures may vary by model year, trim level, and region.
Always follow the manufacturer's recommended procedures and safety precautions.
Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
If you're unsure about any procedure, consult a qualified professional mechanic.

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