Volvo Volvo S70 1996-2000 AW55 Transmission Specifications
This comprehensive guide provides detailed technical specifications for the AW55 automatic transmission used in 1996-2000 Volvo S70 models. Covering critical data points such as gear ratios, fluid capacities, torque converter specifications, and shift patterns, this document serves as an essential resource for technicians, restorers, and enthusiasts. The specifications are particularly valuable for maintenance procedures, performance upgrades, and troubleshooting transmission-related issues. With precise measurements and manufacturer-recommended service intervals, this guide ensures proper care and optimal performance of the AW55 transmission. Whether you're performing routine maintenance, diagnosing transmission problems, or planning modifications, these specifications provide the technical foundation for effective work on the 1996-2000 Volvo S70's automatic transmission system.
Overview Specifications
This document provides detailed specifications and technical information about the AW55 transmission used in the 1996-2000 Volvo S70. 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. The document is divided into sections covering key aspects of the AW55 transmission, including design, operation, and troubleshooting.
How to Use
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Scroll through the document or use the table of contents to jump to specific sections. Each section is organized into subsections with detailed technical points for easy reference.
Key Specifications
Transmission Type
5-speed automatic
Torque Capacity
330 Nm
Fluid Capacity
7.2 liters
Weight
85 kg
Service Interval
50,000 miles
Available Specifications
Design and Construction
This section covers the design features and construction details of the AW55 transmission. It includes information about the transmission's internal components, materials used, and overall build quality.
Design and Construction
This section covers the design features and construction details of the AW55 transmission. It includes information about the transmission's internal components, materials used, and overall build quality.
Internal Components
- 5-speed automatic transmission with electronic control
- Planetary gearset for smooth shifting
- Hydraulic torque converter for efficient power transfer
- Sealed bearings for durability
- Aluminum alloy casing for reduced weight
- Integrated valve body for precise gear changes
Materials and Build Quality
- High-strength steel gears for longevity
- Composite materials for reduced friction
- Corrosion-resistant coatings on internal parts
- Precision-engineered components for reliability
- Rigorous quality control during manufacturing
Performance and Operation
This section provides details on the performance characteristics and operational features of the AW55 transmission. It includes information on shift points, torque handling, and fuel efficiency.
Performance and Operation
This section provides details on the performance characteristics and operational features of the AW55 transmission. It includes information on shift points, torque handling, and fuel efficiency.
Shift Points and Smoothness
- Optimized shift points for balanced performance
- Smooth transitions between gears
- Adaptive shift logic for varying driving conditions
- Reduced shift shock for passenger comfort
- Manual mode for driver control
Torque Handling and Efficiency
- Handles up to 330 Nm of torque
- Efficient power transfer for improved fuel economy
- Low internal friction for reduced energy loss
- Designed for both city and highway driving
- Compatible with Volvo's turbocharged engines
Maintenance and Troubleshooting
This section outlines maintenance requirements and common troubleshooting tips for the AW55 transmission. It includes fluid specifications, service intervals, and diagnostic procedures.
Maintenance and Troubleshooting
This section outlines maintenance requirements and common troubleshooting tips for the AW55 transmission. It includes fluid specifications, service intervals, and diagnostic procedures.
Fluid Specifications and Service
- Uses JWS 3309 or equivalent transmission fluid
- Fluid capacity: 7.2 liters (full system)
- Recommended fluid change interval: 50,000 miles
- Use of incorrect fluid can cause damage
- Regular fluid checks for optimal performance
Common Issues and Diagnostics
- Delayed or harsh shifting
- Transmission slipping under load
- Check for error codes using OBD-II scanner
- Inspect for fluid leaks or contamination
- Replace worn solenoids or sensors
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Transmission Specifications
Overview
- Type
- Automatic Transmission
- Configuration
- Front-wheel drive
- Platform
- Volvo P80 platform
- Material
- Aluminum casing with steel internals
- Location
- Mounted longitudinally in the engine bay
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
- Casing
- Aluminum alloy
- Gears
- Hardened steel
- Clutch Packs
- Composite friction materials
- Seals
- Viton rubber
Features
- Shift Control
-
- Electronic shift control
- Adaptive shift logic
- Manual shift mode
- Cooling
-
- Integrated transmission cooler
- Fluid temperature sensor
- Auxiliary cooler option
- Performance
-
- 5-speed automatic
- Lock-up torque converter
- Smooth shift transitions
- Diagnostics
-
- OBD-II compatible
- Self-diagnostic system
- Fault code storage
- Durability
-
- Reinforced internal components
- High-temperature resistant seals
- Corrosion-resistant casing
Safety Features
- Fail Safe
-
- Limp-home mode
- Overheat protection
- Shift interlock
-
- Park position lock
- Brake-shift interlock
- Fluid Monitoring
-
- Low fluid level warning
- Fluid degradation detection
Comfort Features
- Noise Reduction
-
- Precision gear meshing
- Vibration dampening mounts
- Shift Quality
-
- Smooth gear transitions
- Adaptive shift patterns
- Driver Assistance
-
- Hill start assist
- Grade logic control
Accessories
- Cooling
-
- Auxiliary transmission cooler
- Thermostatic control valve
- Performance
-
- Shift kit
- High-capacity torque converter
- Maintenance
-
- Transmission fluid dipstick
- Filter kit
- Seal replacement kit
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fluid and filter change
- Seal inspection
- Shift linkage adjustment
- Mount inspection
- Diagnostic scan
- Maintenance Notes
- Use only Volvo-approved ATF fluid for optimal performance.
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Parts and labor
- Powertrain
- Miles: 100,000Years: 7Coverage: Major components
- Corrosion
- Miles: UnlimitedYears: 12Coverage: Perforation only
- Emissions
- Miles: 80,000Years: 8Coverage: Emission-related components
Production Details
- Manufacturer
- Aisin Warner
- Manufacturing Process
-
- Precision CNC machining
- Automated assembly
- Laser alignment
- Quality Control
- inspection: 100% component testingTesting: Durability testing, Thermal cycling, Shift performance testing
- Sustainability
-
- Recyclable materials
- Low-emission manufacturing
- Energy-efficient processes
- Production Metrics
- Units Per Year: 150,000Defect Rate: 0.02%
Service Information for aw55 transmission Service
Maintenance and service requirements specific to this component
- Fluid and filter replacement
- Seal inspection
- Shift linkage adjustment
- Mount inspection
- Diagnostic scan
Use only Volvo-approved ATF fluid.
- Fluid flush
- Torque converter inspection
- Valve body inspection
- Cooler line inspection
- Shift quality test
Inspect for signs of wear or leaks.
- Complete overhaul
- Clutch pack replacement
- Seal replacement
- Shift solenoid testing
- Performance calibration
Major service requires specialized tools and expertise.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the AW55 transmission compatible with other Volvo models?
Is the AW55 transmission compatible with other Volvo models?
The AW55 transmission, used in the 1996-2000 Volvo S70, is also compatible with certain Volvo models like the V70 and C70 from the same era. However, compatibility depends on engine type and drivetrain configuration. Always verify with a Volvo dealer or technical guide before attempting cross-model installations.
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, including fluid changes every 30,000-50,000 miles. Use only Volvo-approved ATF fluid. Inspect for leaks, replace the filter, and ensure the transmission control module software is up to date. Neglecting maintenance can lead to premature wear or failure.
Q3 How do I replace the AW55 transmission in a Volvo S70?
How do I replace the AW55 transmission in a Volvo S70?
Replacing the AW55 transmission involves disconnecting the battery, removing the driveshaft, and detaching the transmission mounts. Drain the fluid, disconnect wiring, and unbolt the transmission from the engine. Installation is the reverse process. Use a torque wrench for bolts and refill with the correct ATF fluid. Professional assistance is recommended.
Q4 What are common troubleshooting steps for AW55 transmission issues?
What are common troubleshooting steps for AW55 transmission issues?
Common issues include rough shifting, slipping, or no movement. Check fluid levels and condition first. Inspect for leaks, damaged wiring, or faulty sensors. Use a diagnostic tool to read error codes from the transmission control module. If problems persist, consult a professional for further diagnosis.
Q5 How can I optimize the performance of the AW55 transmission?
How can I optimize the performance of the AW55 transmission?
To optimize performance, ensure regular fluid changes with Volvo-approved ATF. Avoid aggressive driving and overheating. Update the transmission control module software if available. Consider installing an auxiliary cooler for heavy-duty use. Proper maintenance and driving habits 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 S70 AW55 Transmission Service Manual
Coming SoonDetailed guide covering installation, maintenance, and troubleshooting for the AW55 transmission in the 1996-2000 Volvo S70.
AW55 Transmission Technical Bulletin
Coming SoonTechnical service bulletin addressing common issues, updates, and fixes for the AW55 transmission.
Volvo S70 Parts and Accessories Catalog
Coming SoonComprehensive catalog listing compatible parts and accessories for the 1996-2000 Volvo S70, including transmission components.
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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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