Audi Audi A5 2007-2016 AL551 Transmission Specifications
Comprehensive technical specifications and operational details for the AL551 transmission system used in the 2007-2016 Audi A5. This document covers gear ratios, torque capacity, fluid requirements, shift patterns, and diagnostic procedures specific to the AL551 transmission.
Overview of AL551 Transmission Specifications Specifications
This document provides a comprehensive overview of the AL551 transmission specifications for the 2007-2016 Audi A5. It includes technical details, performance metrics, and maintenance guidelines. Use the search functionality to find specific information or navigate through the sections to explore detailed specifications.
How to Use
To find specific information, use the search bar at the top. Type keywords like 'gear ratio', 'torque capacity', or 'maintenance interval' to locate relevant details quickly.
Navigate through the sections by clicking on the section titles. Each section contains subsections with detailed technical points. Use the table of contents on the left to jump to different sections.
Key Specifications
Transmission Type
7-speed dual-clutch automatic (S tronic)
Number of Gears
7 forward, 1 reverse
Torque Capacity
Up to 400 Nm
Top Speed
250 km/h (electronically limited)
Fuel Efficiency
Freewheel function, adaptive shift strategy
Available Specifications
General Specifications
This section provides an overview of the key specifications of the AL551 transmission, including its type, number of gears, torque capacity, and compatibility with various Audi A5 models.
General Specifications
This section provides an overview of the key specifications of the AL551 transmission, including its type, number of gears, torque capacity, and compatibility with various Audi A5 models.
Transmission Overview
- Transmission type: 7-speed dual-clutch automatic (S tronic)
- Number of gears: 7 forward, 1 reverse
- Torque capacity: Up to 400 Nm
- Compatibility: Compatible with 2.0 TFSI, 3.0 TFSI, and 3.0 TDI engines
- Weight: Approximately 135 kg
- Fluid type: Synthetic transmission fluid (lifetime fill)
Gear Ratios
- 1st gear ratio: 4.368
- 2nd gear ratio: 2.636
- 3rd gear ratio: 1.769
- 4th gear ratio: 1.333
- 5th gear ratio: 1.000
- 6th gear ratio: 0.804
- 7th gear ratio: 0.646
- Reverse gear ratio: 3.565
Performance
This section details the performance characteristics of the AL551 transmission, including acceleration, top speed, and fuel efficiency features.
Performance
This section details the performance characteristics of the AL551 transmission, including acceleration, top speed, and fuel efficiency features.
Acceleration and Top Speed
- 0-100 km/h acceleration: Approximately 5.8 seconds (with 3.0 TFSI engine)
- Top speed: Electronically limited to 250 km/h
- Kickdown response time: Less than 200 milliseconds
- Shift time in manual mode: Less than 100 milliseconds
- Launch control available on S5 models
Fuel Efficiency Features
- Freewheel function in coasting mode
- Decoupling of engine during coasting
- Optimized gear ratios for low RPM cruising
- Efficiency-optimized dual-clutch design
- Adaptive shift strategy based on driving conditions
Maintenance and Service
This section outlines the maintenance requirements and service intervals for the AL551 transmission, including fluid changes and filter replacements.
Maintenance and Service
This section outlines the maintenance requirements and service intervals for the AL551 transmission, including fluid changes and filter replacements.
Service Intervals
- Transmission fluid change interval: Every 60,000 km or 5 years
- Transmission filter replacement interval: Every 30,000 km or 3 years
- Clutch replacement interval: As needed (typically every 100,000 km)
- Software updates: Recommended every 2 years or as specified by Audi
- Inspection of transmission mounts and seals: Every 30,000 km
Service Tips
- Use only Audi-approved transmission fluid
- Avoid using aftermarket transmission additives
- Always warm up the transmission before servicing
- Check for software updates before performing any maintenance
- Consult an Audi specialist for complex repairs
Troubleshooting
This section provides common issues and diagnostic tips for the AL551 transmission, including error codes and repair procedures.
Troubleshooting
This section provides common issues and diagnostic tips for the AL551 transmission, including error codes and repair procedures.
Common Issues
- Error code P0750: Low transmission fluid level
- Error code P0753: Incorrect gear ratio
- Error code P0766: Failed pressure control solenoid
- Error code P0770: Transmission fluid temperature too high
- Symptoms of faulty dual-clutch pack
- Symptoms of worn clutch packs
Diagnostic Tips
- Use an Audi VAS 5054A scan tool for diagnostics
- Check transmission fluid level and condition
- Inspect clutch and dual-clutch packs for wear
- Test transmission mounts and seals for leaks
- Check for software updates before repair
- Consult an Audi specialist for complex issues
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 automatic
- Configuration
- transverse-mounted
- Platform
- MLB (Modular Longitudinal Matrix)
- Material
- aluminum alloy casing
- Location
- longitudinal, front-wheel drive layout with optional quattro all-wheel drive
Dimensions
- Length
- 28.5 in (724 mm)
- Width
- 16.5 in (419 mm)
- Height
- 10.8 in (275 mm)
- Weight
- 154 lbs (70 kg)
- Fluid Capacity
- 3.8 liters (4 quarts)
- Torque Capacity
- Up to 221 lb-ft (300 Nm)
- Gear Ratio Range
- 3.79:1 to 0.62:1
Materials
- Transmission Casing
- aluminum alloy
- Gears
- forged steel
- Bearings
- high-performance steel
- Clutch Pack
- ceramic friction plates
- Cooler Lines
- stainless steel
Features
- Gear Ratios
-
- First gear: 3.79:1
- Second gear: 2.34:1
- Third gear: 1.52:1
- Fourth gear: 1.02:1
- Fifth gear: 0.84:1
- Sixth gear: 0.62:1
- Reverse gear: 3.79:1
- Electronic Controls
-
- Tiptronic manual mode
- Dynamic Shift Program (DSP)
- Paddle shifters (on certain trims)
- Sport mode
- Throttle-blip downshifts
- Torque Converter
-
- lock-up clutch
- variable slip control
- optimized for low-end torque
- Differential
-
- integrated into transmission
- electronically controlled
- optional quattro all-wheel drive
- Cooling System
-
- dedicated transmission cooler
- integrated into radiator
- thermostatically controlled
Safety Features
- Structural integrity
-
- reinforced casing
- crash protection
- impact-absorbing mounts
- Thermal Management
-
- overheating protection
- thermal monitoring
- emergency running mode
- Fail-Safe Mode
-
- limp-home functionality
- reduced power operation
- fail-safe gear holding
- Pressure Monitoring
-
- hydraulic pressure sensors
- line pressure control
- leak detection
Comfort Features
- Smooth Shifting
-
- adaptive shift mapping
- smooth torque delivery
- reduced NVH
- Noise Reduction
-
- sound-insulating materials
- helical gear design
- dynamic damping
- Manual Mode
-
- Tiptronic sequential shifting
- paddle shifters (on certain trims)
- manual shift override
- Adaptive Driving
-
- throttle adaptive
- brake adaptive
- grade adaptive
- Low Temperature Operation
-
- winter mode
- cold-weather optimized fluids
- rapid warm-up cycle
Accessories
- Transmission Fluid
-
- synthetic ATF
- low-viscosity formula
- high-temperature stability
- Transmission Filter
-
- spin-on filter
- high-capacity
- extended-life
- Transmission Cooler
-
- high-efficiency radiator
- auxiliary cooler
- hard-line kit
- Software Update
-
- reprogramming capability
- adaptive learning
- custom shift maps
- Special Tools
-
- transmission pan wrench
- fluid pump
- diagnostic connector
Maintenance
- Service interval
- Every 30,000 miles (48,000 km) or 24 months
- Service Items
-
- transmission fluid change
- filter replacement
- pan gasket inspection
- cooling lines inspection
- software update check
- Maintenance Notes
-
- Use synthetic transmission fluid meeting Audi/VW specifications
- Avoid using non-approved fluids
- Inspect transmission mounts for wear
- Check for software updates
Warranty
- Basic Warranty
- Miles: 48,000 milesYears: 4 yearsCoverage: transmission components
- Powertrain Warranty
- Miles: 70,000 milesYears: 5 yearsCoverage: transmission and drivetrain
- Corrosion Perforation Warranty
- Miles: Unlimited milesYears: 12 yearsCoverage: transmission housing and cooler lines
- Emissions Warranty
- Miles: 70,000 milesYears: 5 yearsCoverage: transmission-related emissions components
Production Details
- Manufacturer
- Audi AG / Volkswagen Group
- Manufacturing Process
-
- robotic welding
- precision machining
- laser cutting
- aluminum casting
- helical gear cutting
- Quality Control
- inspection: dimensional checks, leak testing, functional testing, end-of-line testingCertifications: ISO 9001, IATF 16949, VDA 6.1
- Sustainability Practices
-
- recyclable materials
- energy-efficient manufacturing
- waste reduction programs
- low-VOC paints
- Production Metrics
- Annual Production: Over 200,000 unitsProduction Cycle: Approx. 24 hours per unitDefect Rate: Less than 1%Warranty Claim Rate: Less than 2%
Service Information for al551 transmission Service
Maintenance and service requirements specific to this component
- Transmission fluid change
- Transmission filter replacement
- Inspect transmission pan gasket
- Check cooling lines for leaks
- Software update check
Recommended for normal driving conditions. Use synthetic transmission fluid meeting Audi/VW specifications.
- Inspect transmission mounts
- Check for signs of wear on clutch packs
- Verify proper operation of torque converter
- Test transmission solenoids
- Check for software updates
Special tools may be required for certain procedures. Contact an authorized Audi service center.
- Replace high-wear components
- Inspect and replace transmission cooler lines
- Perform detailed transmission overhaul
- Replace pressure sensors
- Check for updated software
Critical service interval. Failure to perform maintenance may result in reduced transmission performance and longevity.
Common Questions
Find answers to common questions about torque specifications
Q1 What type of transmission is the AL551 used in the 2007-2016 Audi A5?
What type of transmission is the AL551 used in the 2007-2016 Audi A5?
The AL551 is a 7-speed dual-clutch automatic transmission (S tronic) designed for longitudinal engine configurations. It features a dual-mass flywheel and is optimized for high torque delivery, supporting up to 550 Nm of torque.
Q2 What is the recommended transmission fluid for the AL551 transmission?
What is the recommended transmission fluid for the AL551 transmission?
Audi recommends using genuine Audi transmission fluid (part number G 055 529 A2) for the AL551. The fluid capacity is approximately 7.2 liters, but always refer to the service manual for exact specifications and refill procedures.
Q3 How often should the AL551 transmission fluid be changed?
How often should the AL551 transmission fluid be changed?
Audi does not specify a fixed interval for transmission fluid changes under normal operating conditions. However, for severe driving conditions (e.g., frequent towing, high temperatures, or stop-and-go traffic), it is recommended to inspect the fluid every 60,000 miles and replace it if necessary.
Q4 What are common symptoms of AL551 transmission issues?
What are common symptoms of AL551 transmission issues?
Common symptoms include rough shifting, delayed engagement, transmission slipping, or warning lights such as the 'Transmission Malfunction' indicator. These issues may be caused by low fluid levels, worn clutch packs, or electronic control module (ECM) faults.
Q5 Can the AL551 transmission be repaired, or does it require replacement?
Can the AL551 transmission be repaired, or does it require replacement?
The AL551 transmission can often be repaired, depending on the issue. Common repairs include replacing the mechatronic unit, clutch packs, or seals. However, severe damage may require a complete transmission replacement. Always consult a certified Audi technician for diagnosis and repair.
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 AL551 Transmission Service Manual
Coming SoonOfficial service manual for the AL551 transmission, including detailed repair procedures, torque specifications, and diagnostic codes.
Audi S tronic Transmission Overview
Coming SoonTechnical overview of the S tronic dual-clutch transmission system, including its operation and maintenance requirements.
AL551 Transmission Fluid Replacement Guide
Coming SoonStep-by-step guide for replacing the transmission fluid in the AL551, including tools required and safety precautions.
Audi Warranty and Maintenance Information
Coming SoonOfficial Audi warranty documentation, including coverage details for transmission components and maintenance requirements.
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.