Volvo Volvo S40 1995-2004 AW55 Transmission Specifications
This document provides a detailed overview of the AW55 automatic transmission specifications for the 1995-2004 Volvo S40. It includes technical details such as gear ratios, fluid capacity, torque converter specifications, and maintenance intervals. The purpose of this guide is to assist owners, mechanics, and enthusiasts in understanding the transmission's design, performance, and maintenance requirements. Whether you're troubleshooting, performing repairs, or upgrading your Volvo S40, this resource offers valuable insights to ensure optimal transmission performance and longevity.
Overview Specifications
This document provides detailed specifications and technical information about the AW55 transmission used in the 1995-2004 Volvo S40. It is designed to assist mechanics, enthusiasts, and owners in understanding the transmission's features, maintenance requirements, and performance characteristics. Use the search and navigation instructions to quickly find relevant information.
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Key Specifications
Transmission Type
5-speed automatic
Fluid Capacity
7.4 liters
Gear Ratios
3.54:1 to 0.73:1
Compatible Models
1995-2004 Volvo S40
Service Interval
60,000 miles
Available Specifications
General Specifications
This section covers the basic specifications of the AW55 transmission, including its design, compatibility, and key features. It provides an overview of the transmission's capabilities and intended use in the Volvo S40.
General Specifications
This section covers the basic specifications of the AW55 transmission, including its design, compatibility, and key features. It provides an overview of the transmission's capabilities and intended use in the Volvo S40.
Transmission Design
- 5-speed automatic transmission
- Front-wheel drive configuration
- Hydraulic control system
- Electronically controlled shifting
- Compact and lightweight design
- Designed for smooth and efficient performance
Compatibility
- Compatible with 1995-2004 Volvo S40 models
- Fits 1.9L and 2.0L engines
- Adaptable to various driving conditions
- Requires specific transmission fluid (ATF)
- Designed for long-term durability
Performance Characteristics
This section details the performance aspects of the AW55 transmission, including gear ratios, shift patterns, and efficiency. It highlights how the transmission enhances the driving experience in the Volvo S40.
Performance Characteristics
This section details the performance aspects of the AW55 transmission, including gear ratios, shift patterns, and efficiency. It highlights how the transmission enhances the driving experience in the Volvo S40.
Gear Ratios
- 1st gear: 3.54:1
- 2nd gear: 2.14:1
- 3rd gear: 1.45:1
- 4th gear: 1.00:1
- 5th gear: 0.73:1
- Reverse gear: 3.40:1
Shift Patterns
- Smooth and precise shifting
- Adaptive shift logic for varying conditions
- Manual shift mode available
- Quick response to throttle input
- Optimized for fuel efficiency
Maintenance and Service
This section provides essential information on maintaining and servicing the AW55 transmission. It includes fluid requirements, common issues, and recommended service intervals to ensure optimal performance.
Maintenance and Service
This section provides essential information on maintaining and servicing the AW55 transmission. It includes fluid requirements, common issues, and recommended service intervals to ensure optimal performance.
Fluid Requirements
- Use JWS 3309 or equivalent ATF
- Fluid capacity: 7.4 liters (7.8 quarts)
- Regular fluid checks recommended
- Fluid change interval: 60,000 miles
- Avoid mixing incompatible fluids
Common Issues
- Delayed shifting or slipping
- Transmission fluid leaks
- Solenoid valve failures
- Wear and tear on clutch packs
- Diagnostic trouble codes (DTCs) for troubleshooting
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Transmission Specifications
Overview
- Type
- Automatic Transmission
- Configuration
- 5-speed
- Platform
- Volvo P1 Platform
- Material
- Aluminum and Steel
- Location
- Front-wheel drive
Dimensions
- Length
- 28.5 inches (724 mm)
- Width
- 22.8 inches (579 mm)
- Height
- 18.3 inches (465 mm)
- Weight
- 165 lbs (75 kg)
- input Shaft Diameter
- 1.18 inches (30 mm)
- Output Shaft Diameter
- 1.38 inches (35 mm)
- Fluid Capacity
- 7.4 quarts (7 liters)
Materials
- Housing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Packs
- Composite friction materials
- Seals
- Viton rubber
Features
- Shifting
-
- Adaptive shift control
- Manual shift mode
- Smooth gear transitions
- Performance
-
- Lock-up torque converter
- Optimized gear ratios
- Reduced power loss
- Durability
-
- Reinforced internal components
- High-temperature resistance
- Corrosion-resistant coatings
- Efficiency
-
- Low fluid drag design
- Optimized hydraulic circuits
- Reduced internal friction
- integration
-
- ECU-controlled shifting
- Compatible with Volvo P1 platform
- Seamless integration with engine management
Safety Features
- Fail-Safes
-
- Limp-home mode
- Overheat protection
- Monitoring
-
- Fluid temperature sensor
- Pressure sensors
- Mechanical
-
- Reinforced casing
- Shear-resistant gears
Comfort Features
- Noise Reduction
-
- Precision gear meshing
- Vibration dampening
- Smoothness
-
- Adaptive shift logic
- Torque converter lock-up
- Drivability
-
- Seamless gear changes
- Responsive throttle input
- Climate
-
- Thermal management system
- Fluid cooling
Accessories
- Fluids
-
- ATF JWS 3309
- Transmission fluid additive
- Tools
-
- Transmission jack
- Fluid pump
- Diagnostic scanner
- Upgrades
-
- Performance shift kit
- Enhanced cooling system
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fluid and filter replacement
- Seal inspection
- Solenoid testing
- Torque converter check
- Shift linkage adjustment
- Maintenance Notes
- Use only specified ATF fluid to avoid damage.
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Parts and labor
- Powertrain
- Miles: 100,000Years: 7Coverage: Transmission components
- Corrosion
- Miles: UnlimitedYears: 12Coverage: Rust-through protection
- Emissions
- Miles: 80,000Years: 8Coverage: Emission-related components
- Warranty Terms
- Transferable to subsequent owners.
Production Details
- Manufacturer
- Aisin AW
- Manufacturing Process
-
- Precision CNC machining
- Automated assembly
- Laser welding
- Quality Control
- Testing: Durability testing, Performance validation, Leak testingStandards: ISO 9001, Volvo OEM specifications
- Sustainability Practices
-
- Recycled materials
- Energy-efficient production
- Waste reduction programs
- Production Metrics
- Annual Output: 500,000 unitsDefect Rate: 0.01%Lead Time: 6 weeks
Service Information for aw55 transmission Service
Maintenance and service requirements specific to this component
- Inspect transmission fluid level
- Check for leaks
- Test solenoid operation
- Inspect shift linkage
- Replace transmission filter
Use only ATF JWS 3309 fluid.
- Replace transmission fluid
- Inspect torque converter
- Check clutch pack wear
- Test pressure sensors
- Inspect seals and gaskets
Perform diagnostic scan for error codes.
- Complete transmission flush
- Replace worn clutch packs
- Inspect and replace solenoids if needed
- Check and adjust valve body
- Test lock-up torque converter
Requires specialized tools and expertise.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the AW55 transmission compatible with all 1995-2004 Volvo S40 models?
Is the AW55 transmission compatible with all 1995-2004 Volvo S40 models?
The AW55 transmission is compatible with most 1995-2004 Volvo S40 models, specifically those equipped with the 1.9L and 2.0L engines. However, compatibility may vary based on the specific model year and engine configuration. Always verify the transmission code and consult the vehicle's VIN or a Volvo dealership to ensure compatibility before installation.
Q2 What are the maintenance requirements for the AW55 transmission?
What are the maintenance requirements for the AW55 transmission?
The AW55 transmission requires regular maintenance to ensure optimal performance. This includes changing the transmission fluid every 30,000 to 60,000 miles, inspecting the transmission pan for leaks, and replacing the filter if necessary. Additionally, check for software updates from Volvo to address any known transmission issues. Regular inspections of the transmission mounts and seals are also recommended.
Q3 How do I replace the AW55 transmission in a 1995-2004 Volvo S40?
How do I replace the AW55 transmission in a 1995-2004 Volvo S40?
Replacing the AW55 transmission involves several steps: 1) Disconnect the battery and remove the transmission fluid. 2) Support the engine and remove the transmission mounts. 3) Disconnect the driveshaft, shift linkage, and electrical connectors. 4) Remove the transmission bolts and carefully lower the transmission. 5) Install the new transmission in reverse order, ensuring all connections are secure. Always refer to the service manual for detailed instructions.
Q4 What are common troubleshooting steps for AW55 transmission issues?
What are common troubleshooting steps for AW55 transmission issues?
Common issues with the AW55 transmission include rough shifting, slipping gears, and fluid leaks. Start by checking the transmission fluid level and condition. Inspect for leaks around the pan and seals. Use a diagnostic tool to check for error codes. If no issues are found, consider flushing the transmission fluid and replacing the filter. For persistent problems, consult a professional mechanic or Volvo dealership.
Q5 How can I optimize the performance of the AW55 transmission?
How can I optimize the performance of the AW55 transmission?
To optimize the AW55 transmission, ensure regular fluid changes using the recommended Volvo transmission fluid. Avoid aggressive driving and excessive towing to reduce wear. Keep the transmission software updated to address any performance issues. Additionally, inspect and replace worn components like mounts and seals promptly. Proper maintenance and driving habits can significantly extend the transmission's lifespan.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Volvo S40 AW55 Transmission Service Manual
Coming SoonThis manual provides detailed instructions for servicing and repairing the AW55 transmission in 1995-2004 Volvo S40 models.
Volvo Technical Service Bulletin for AW55 Transmission
Coming SoonThis bulletin outlines common issues and recommended solutions for the AW55 transmission, including software updates and part replacements.
AW55 Transmission Parts and Accessories Catalog
Coming SoonThis catalog lists all compatible parts and accessories for the AW55 transmission, including filters, seals, and fluid recommendations.
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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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