Audi Audi A4 2009-2016 AL450 Transmission Specifications
Comprehensive technical specifications for the AL450 transmission system used in the 2009-2016 Audi A4. This document covers detailed transmission parameters, including gear ratios, torque capacity, fluid specifications, and maintenance procedures specific to the AL450 transmission.
AL450 Transmission Specifications Specifications
This document provides a comprehensive overview of the AL450 transmission specifications for the 2009-2016 Audi A4. It covers key technical details, operational parameters, and maintenance guidelines. Use this guide to understand transmission functionality, troubleshoot issues, and perform maintenance tasks. Navigate through the sections to find detailed information on transmission components, performance metrics, and service recommendations.
How to Use
Use the search functionality to quickly locate specific information by typing keywords related to the transmission specifications. Results will be filtered to show relevant sections and subsections.
Navigate through the document by selecting sections from the table of contents. Each section includes subsections with detailed technical points. Use the quick reference section for key specifications at a glance.
Key Specifications
Transmission Type
7-speed dual-clutch automatic (S tronic)
Number of Gears
7 forward, 1 reverse
Maximum Torque
400 Nm (295 lb-ft)
Fluid Capacity
2.5 liters (0.66 gallons)
Oil Change Interval
Every 60,000 miles (96,000 km)
Available Specifications
General Information
Overview of the AL450 transmission, including its design, applications, and key features. This section provides foundational knowledge for understanding the transmission's operation and capabilities.
General Information
Overview of the AL450 transmission, including its design, applications, and key features. This section provides foundational knowledge for understanding the transmission's operation and capabilities.
Transmission Overview
- Dual-clutch transmission with 7-speed automatic mode
- S tronic designation in Audi nomenclature
- Designed for longitudinal engine layouts
- Compatible with quattro all-wheel drive systems
- Weight-optimized construction using aluminum and steel
Vehicle Applications
- Audi A4 (B8) 2009-2016
- Audi A5 2009-2016
- Audi S4 (B8) 2010-2015
- Audi S5 2010-2015
- Multiple engine configurations supported
Technical Specifications
Detailed technical specifications of the AL450 transmission, including gear ratios, torque ratings, and fluid requirements. This section is essential for understanding the transmission's performance and operational limits.
Technical Specifications
Detailed technical specifications of the AL450 transmission, including gear ratios, torque ratings, and fluid requirements. This section is essential for understanding the transmission's performance and operational limits.
Gear Ratios
- 1st gear: 3.500
- 2nd gear: 2.500
- 3rd gear: 1.800
- 4th gear: 1.400
- 5th gear: 1.100
- 6th gear: 0.800
- 7th gear: 0.600
- Reverse gear: 3.500
Transmission Limits
- Maximum torque capacity: 400 Nm (295 lb-ft)
- Maximum engine speed: 7,200 rpm
- Cooling system integrated with engine coolant circuit
- Oil capacity: 2.5 liters (0.66 gallons)
Maintenance and Service
Guidelines for maintaining and servicing the AL450 transmission. This section includes recommended service intervals, fluid specifications, and diagnostic procedures.
Maintenance and Service
Guidelines for maintaining and servicing the AL450 transmission. This section includes recommended service intervals, fluid specifications, and diagnostic procedures.
Service Intervals
- Transmission oil change every 60,000 miles (96,000 km)
- Filter replacement every 30,000 miles (48,000 km)
- Clutch pack inspection every 30,000 miles (48,000 km)
- Software updates as required by Audi specifications
Fluid Requirements
- Audi-approved dual-clutch transmission fluid (TL 052 152)
- Fluid level check procedure available in service manual
- Fluid temperature range: -40°C to 150°C (-40°F to 302°F)
- Avoid using non-approved fluids to prevent damage
Troubleshooting
Common issues and diagnostic procedures for the AL450 transmission. This section helps identify and address potential problems, ensuring optimal transmission performance.
Troubleshooting
Common issues and diagnostic procedures for the AL450 transmission. This section helps identify and address potential problems, ensuring optimal transmission performance.
Common Issues
- Clutch pack wear causing inconsistent shifting
- Faulty sensors leading to erratic gear changes
- Low transmission fluid level or incorrect fluid type
- Software calibration issues requiring updates
- Excessive noise during operation
Search Specifications
Search by specification name, value, or description
Type to search through torque specifications. Results will appear below as you type.
Transmission Specifications
Overview
- Type
- 6-speed dual-clutch automatic transmission
- Configuration
- Longitudinal
- Platform
- MLB (Modular Longitudinal Matrix)
- Torque Capacity
- 221 lb-ft (300 Nm)
- Location
- Rear-wheel drive with optional Quattro all-wheel drive
Dimensions
- Length
- 30.7 in (780 mm)
- Width
- 19.7 in (500 mm)
- Height
- 11.8 in (300 mm)
- Weight
- approximately 375 lbs (170 kg)
- Oil Capacity
- 7.4 quarts (7 liters)
- Gear Ratios
- 1st: 4.4582nd: 2.6363rd: 1.7044th: 1.2815th: 1.0006th: 0.839Reverse: 3.482
Materials
- Bellhousing
- Aluminum alloy
- Main Case
- High-strength steel
- Clutch Pack
- Ceramic friction plates
- Shaft Material
- Forged steel
- Pan
- Cast aluminum
Features
- Gear Ratios
-
- 1st: 4.458
- 2nd: 2.636
- 3rd: 1.704
- 4th: 1.281
- 5th: 1.000
- 6th: 0.839
- Reverse: 3.482
- Electronic Features
-
- Paddle shifters
- Manual shift mode
- Adaptive shift programming
- Dynamic torque vectoring
- Mechanical Features
-
- Wet clutch pack
- Electronic differential lock
- Limited-slip differential integration
- Hydraulic actuation
- Performance Features
-
- Launch control
- Optimized shift points for acceleration
- Aggressive downshifting
- Throttle blipping on downshift
- Design Features
-
- Lightweight construction
- Compact design
- Dual-mass flywheel
- Integrated transmission control module
Safety Features
- Transmission Protection
-
- Overheating protection
- Torque limiting
- Clutch overheat monitoring
- Redundant clutch control
- Vehicle Stability
-
- Integration with ESP
- Traction control system
- Electronic differential lock
- Anti-slip regulation
- Emergency Response
-
- Fail-safe mode
- Emergency power reserve
- Manual override capability
- Protected gear selection
Comfort Features
- Smooth Operation
-
- Smoother gear transitions
- Reduced NVH (Noise, Vibration, Harshness)
- Optimized comfort shifting
- Creep function for low-speed maneuvering
- Convenience Features
-
- Automatic mode
- Manual shift override
- Paddle shifters
- Adaptive shift strategy
- Noise Reduction
-
- Sound insulation
- Hydraulic damping
- Clutch pack optimization
- Transmission mounts
- Driving Assistance
-
- Adaptive cruise control integration
- Stop & Go functionality
- Traffic jam assist
- Predictive gear selection
Accessories
- Fluid And Filters
-
- Synthetic transmission fluid
- Clutch pack replacement
- Transmission filter
- Pan gasket
- Electrical Accessories
-
- Transmission control module
- Solenoid pack
- Speed sensors
- Temperature sensor
- Hardware Accessories
-
- Mounting brackets
- Heat shield
- Drain pan
- Filler plug
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Transmission fluid change
- Filter replacement
- Clutch pack inspection
- Software update
- Inspect transmission mounts
- Check for leaks
- Maintenance Notes
-
- Use only approved synthetic transmission fluid
- Replace filter every 30,000 miles
- Inspect clutch pack wear every 60,000 miles
- Update software as needed
- Check for any signs of leaks
- Inspect mounting brackets
Warranty
- Basic Warranty
- Miles: 50,000Years: 4Coverage: Bumper-to-bumper
- Powertrain Warranty
- Miles: 50,000Years: 4Coverage: Powertrain components
- Transmission Warranty
- Miles: 60,000Years: 5Coverage: Transmission and clutch assembly
- Maintenance Warranty
- Miles: 10,000Years: 1Coverage: Scheduled maintenance
Production Details
- Manufacturer
- Volkswagen Group
- Manufacturing Facility
- Kassel, Germany
- Manufacturing Process
-
- CNC machining
- Robotic assembly
- Laser welding
- Heat treatment
- Quality control inspection
- Quality Control
- inspection: Dimensional checks, Leak testing, Functional testing, Software calibrationCertification: ISO 9001Testing: Performance testing, Endurance testing, Environmental testing, Reliability testing
- Sustainability Practices
-
- Recycled materials
- Energy-efficient manufacturing
- Waste reduction programs
- Eco-friendly packaging
- Production Metrics
- Units Per Year: Over 100,000Assembly Time: Approximately 12 hoursQuality Rating: 98.5% defect-free rateWarranty Claims: Less than 2%
Service Information for al450 transmission Service
Maintenance and service requirements specific to this component
- Transmission fluid change
- Replace transmission filter
- Inspect clutch pack for wear
- Update transmission software if available
- Check for any signs of leaks
- Inspect mounting brackets
Use only approved synthetic transmission fluid. Inspect clutch pack wear pattern.
- Inspect clutch pack wear
- Check transmission mounts for wear
- Inspect high-pressure hydraulic lines
- Test electronic solenoid pack
- Inspect wiring harness connections
- Perform system functionality test
Special tools required for clutch pack inspection. Use factory-approved diagnostic equipment.
- Replace clutch pack
- Replace transmission mounts
- Replace high-pressure hydraulic lines
- Overhaul solenoid pack
- Replace wiring harness if needed
- Perform complete system reset and calibration
Major service requires specialized tools and factory training. Not recommended for DIY.
Common Questions
Find answers to common questions about torque specifications
Q1 What type of transmission fluid is recommended for the AL450 transmission in a 2009-2016 Audi A4?
What type of transmission fluid is recommended for the AL450 transmission in a 2009-2016 Audi A4?
The AL450 transmission requires Audi Genuine ATF (Automatic Transmission Fluid) part number G 055 540 A2. It is a fully synthetic fluid specifically formulated for the 7-speed S tronic dual-clutch transmission. The fluid capacity is approximately 7.2 liters, but always refer to the exact specifications in the service manual.
Q2 What is the torque specification for the AL450 transmission mounting bolts?
What is the torque specification for the AL450 transmission mounting bolts?
The torque specification for the AL450 transmission mounting bolts is 40 Nm (30 lb-ft) plus an additional 90-degree turn. Ensure the bolts are tightened in the correct sequence as outlined in the service manual to avoid misalignment or damage.
Q3 How often should the AL450 transmission fluid be changed?
How often should the AL450 transmission fluid be changed?
Audi recommends changing the transmission fluid in the AL450 every 60,000 miles or 5 years, whichever comes first. However, under severe driving conditions (e.g., frequent towing, stop-and-go traffic), more frequent changes may be necessary. Always consult the owner's manual or a certified Audi technician.
Q4 What are the common symptoms of a failing AL450 transmission?
What are the common symptoms of a failing AL450 transmission?
Common symptoms include harsh shifting, delayed engagement, transmission slipping, unusual noises (e.g., grinding or whining), and warning lights such as the transmission temperature or malfunction indicator. If any of these symptoms occur, immediate inspection by a qualified technician is recommended.
Q5 Can the AL450 transmission be repaired, or does it need to be replaced entirely?
Can the AL450 transmission be repaired, or does it need to be replaced entirely?
The AL450 transmission can often be repaired, depending on the issue. Common repairs include replacing the mechatronic unit, clutch packs, or seals. However, in cases of severe internal damage, a complete transmission replacement may be necessary. Always consult a certified Audi technician for an accurate diagnosis.
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 SoonOfficial service manual for the AL450 transmission, including detailed repair procedures, torque specifications, and fluid requirements.
Audi Genuine Parts Catalog
Coming SoonCatalog of genuine Audi parts, including transmission components, fluids, and seals for the AL450 transmission.
Audi Technical Service Bulletins (TSBs)
Coming SoonCollection of TSBs related to the AL450 transmission, addressing common issues, updates, and repair procedures.
Audi Transmission Fluid Guide
Coming SoonComprehensive guide on selecting and using the correct transmission fluid for the AL450 transmission.
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
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.
Intellectual Property
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
Diagnostic
Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
Repair
Expert in both traditional mechanical repairs and modern vehicle systems.
Additional Expertise
Documentation
Created over 500 detailed repair guides and technical documents.
Training
Conducted technical training sessions and contributed to repair databases.
Certifications & Research
Certifications
- ASE Master Technician Certification
- Advanced Diagnostic Specialist
- Hybrid/Electric Vehicle Systems
- Performance Tuning Expert
Research & Community
Actively researches emerging technologies and contributes to automotive forums.