Volvo Volvo XC90 2002-2014 AW55 Transmission Transmission Specifications
Volvo Volvo XC90 2002-2014

Volvo Volvo XC90 2002-2014 AW55 Transmission Specifications

This document provides detailed specifications for the AW55-50SN automatic transmission used in the 2002-2014 Volvo XC90. It includes information on gear ratios, fluid capacity, torque converter specifications, and maintenance intervals. The guide is designed to assist mechanics, enthusiasts, and owners in understanding the transmission’s technical details, ensuring proper maintenance, and identifying compatibility for repairs or upgrades. Whether you’re troubleshooting issues, performing routine service, or planning performance modifications, this comprehensive resource offers valuable insights to optimize the transmission’s performance and longevity.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the AW55 transmission used in the 2002-2014 Volvo XC90. It is designed to assist owners, mechanics, and enthusiasts in understanding the transmission's features, maintenance requirements, and performance characteristics. Use the search and navigation instructions to quickly find specific details. The sections cover key aspects such as design, operation, maintenance, and troubleshooting.

How to Use

Use the search function by entering keywords related to the AW55 transmission, such as 'fluid type,' 'shift points,' or 'torque converter.' This will highlight relevant sections and subsections for quick access.

Navigate through the document by scrolling through the sections or using the table of contents. Each section is clearly labeled, and subsections are organized for easy reference.

Key Specifications

Transmission Type

5-speed automatic

Torque Capacity

330 Nm

Fluid Type

JWS 3309

Fluid Capacity

7.5 liters

Weight

85 kg (approx.)

Available Specifications

Design and Construction

This section covers the design and construction of the AW55 transmission, including its components, materials, and engineering features. Learn about its layout, durability, and how it integrates with the Volvo XC90's drivetrain.

Transmission Layout
  • 5-speed automatic transmission
  • Front-wheel drive and all-wheel drive compatibility
  • Compact and lightweight design
  • Hydraulic control system
  • Electronically controlled shift points
  • Integrated torque converter
Materials and Durability
  • High-strength aluminum casing
  • Heat-treated gears for longevity
  • Advanced friction materials in clutches
  • Corrosion-resistant components
  • Sealed design for reduced maintenance

Operation and Performance

Explore the operational characteristics and performance metrics of the AW55 transmission. This section includes details on shift patterns, efficiency, and how it enhances the driving experience in the Volvo XC90.

Shift Patterns
  • Smooth and precise gear changes
  • Adaptive shifting based on driving conditions
  • Manual shift mode for sporty driving
  • Downshift logic for engine braking
  • Optimal shift points for fuel efficiency
Performance Metrics
  • Maximum torque capacity: 330 Nm
  • Gear ratios optimized for SUV performance
  • Improved acceleration and towing capability
  • Low noise and vibration levels
  • Enhanced fuel economy compared to older models

Maintenance and Troubleshooting

This section provides essential maintenance tips and troubleshooting guidance for the AW55 transmission. Learn about fluid requirements, common issues, and how to ensure long-term reliability.

Fluid Requirements
  • Recommended fluid: JWS 3309 or equivalent
  • Fluid capacity: 7.5 liters (approx.)
  • Fluid change interval: 60,000 miles or as needed
  • Importance of using the correct fluid type
  • Procedure for checking fluid level
Common Issues and Solutions
  • Delayed or harsh shifting: Check fluid level and quality
  • Transmission slipping: Inspect clutches and solenoids
  • Error codes: Use diagnostic tools for precise troubleshooting
  • Fluid leaks: Inspect seals and gaskets
  • Regular maintenance prevents most issues

Transmission Specifications

Overview

Type
Automatic Transmission
Configuration
5-Speed
Platform
Volvo P2 Platform
Material
Aluminum Case
Location
Front-Transverse

Dimensions

Length
28.5 in (724 mm)
Width
22.8 in (579 mm)
Height
18.3 in (465 mm)
Weight
165 lbs (75 kg)
input Shaft Diameter
1.2 in (30 mm)
Output Shaft Diameter
1.1 in (28 mm)
Fluid Capacity
7.4 quarts (7 liters)

Materials

Case
Aluminum Alloy
Gears
Hardened Steel
Clutch Packs
Carbon Fiber
Seals
Nitrile Rubber

Features

Performance
  • Adaptive Shift Logic
  • Lock-Up Torque Converter
  • Smooth Gear Transitions
Technology
  • Electronic Control Unit (ECU)
  • CAN Bus Integration
  • Diagnostic Port Access
Durability
  • Reinforced Gear Trains
  • High-Temperature Resistance
  • Corrosion-Resistant Coating
Efficiency
  • Optimized Gear Ratios
  • Reduced Internal Friction
  • Efficient Fluid Flow
Safety
  • Overheat Protection
  • Fail-Safe Mode
  • Transmission Brake

Safety Features

Monitoring
  • Temperature Sensors
  • Pressure Sensors
  • Speed Sensors
Protection
  • Overheat Shutdown
  • Low Fluid Protection
  • Mechanical Fail-Safe

Comfort Features

Shift Quality
  • Smooth Acceleration
  • Quiet Operation
  • Minimal Vibration
Control
  • Manual Shift Mode
  • Adaptive Learning
  • Hill Descent Control

Accessories

Fluids
  • Transmission Fluid
  • Seal Conditioner
  • Coolant Additive
Tools
  • Transmission Jack
  • Fluid Pump
  • Diagnostic Scanner
Parts
  • Filter Kit
  • Gasket Set
  • Shift Solenoid

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Fluid and Filter Change
  • Seal Inspection
  • Solenoid Testing
  • Gear Train Check
  • ECU Diagnostics
Maintenance Notes
Use only specified transmission fluid to avoid damage.

Warranty

Basic
Miles: 50,000
Years: 4
Coverage: Manufacturer Defects
Powertrain
Miles: 100,000
Years: 7
Coverage: Transmission Components
Corrosion
Miles: Unlimited
Years: 12
Coverage: Perforation Only
Roadside
Miles: Unlimited
Years: 4
Coverage: Towing and Assistance

Production Details

Manufacturer
Aisin AW
Manufacturing Process
  • CNC Machining
  • Heat Treatment
  • Precision Assembly
Quality Control
Testing: Durability Testing, Performance Testing, Environmental Testing
Standards: ISO 9001, ISO 14001, TS 16949
Sustainability Practices
  • Recycled Materials
  • Waste Reduction
  • Energy Efficiency
Production Metrics
Units Per Year: 500,000
Defect Rate: 0.01%
Production Time: 8 hours per unit

Service Information for aw55 transmission Service

Maintenance and service requirements specific to this component

30,000
24
  • Inspect Transmission Fluid
  • Replace Transmission Filter
  • Check for Leaks
  • Test Shift Solenoids
  • ECU Diagnostic Scan

Use only specified transmission fluid to avoid damage.

60,000
48
  • Flush Transmission Fluid
  • Inspect Seals and Gaskets
  • Check Gear Train Wear
  • Test Torque Converter
  • Calibrate Shift Points

Professional service recommended for fluid flush.

100,000
84
  • Overhaul Transmission
  • Replace Worn Clutch Packs
  • Inspect and Replace Seals
  • Test and Replace Solenoids
  • Performance Testing

Major service requires specialized tools and expertise.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the AW55 transmission compatible with all 2002-2014 Volvo XC90 models?

The AW55 transmission is compatible with most 2002-2014 Volvo XC90 models equipped with the 2.5L turbocharged engine. However, compatibility may vary for models with different engine configurations or drivetrain options. Always verify the vehicle’s VIN and consult the manufacturer or a certified technician to ensure compatibility before proceeding with any transmission-related work.

Q2

What are the maintenance requirements for the AW55 transmission in a Volvo XC90?

The AW55 transmission requires regular maintenance to ensure optimal performance. This includes checking and replacing the transmission fluid every 30,000 to 60,000 miles, depending on driving conditions. Additionally, inspect the transmission filter and seals during fluid changes. Regularly monitor for signs of wear, such as slipping gears or delayed shifting, and address issues promptly to prevent further damage.

Q3

How do I replace the AW55 transmission in a 2002-2014 Volvo XC90?

Replacing the AW55 transmission involves several steps. First, disconnect the battery and remove the transmission crossmember and driveshaft. Drain the transmission fluid and disconnect all electrical connectors and linkages. Use a transmission jack to support and remove the transmission. Install the new transmission by reversing the removal process, ensuring all connections are secure. Refill with the recommended fluid and test for proper operation.

Q4

What are common troubleshooting steps for AW55 transmission issues?

Common AW55 transmission issues include delayed shifting, slipping gears, or warning lights. Start by checking the transmission fluid level and condition. Scan for diagnostic trouble codes using an OBD-II scanner. Inspect the transmission solenoids, valve body, and wiring for damage or wear. If issues persist, consult a professional for further diagnosis and repair.

Q5

How can I optimize the performance of the AW55 transmission in my Volvo XC90?

To optimize the AW55 transmission’s performance, use the manufacturer-recommended transmission fluid and change it at regular intervals. Avoid aggressive driving and ensure the transmission is properly warmed up before heavy use. Regularly check and maintain the transmission cooling system to prevent overheating. Consider upgrading the valve body or tuning the transmission control module for enhanced performance.

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 XC90 AW55 Transmission Service Manual

Coming Soon

This manual provides detailed instructions for servicing and repairing the AW55 transmission in 2002-2014 Volvo XC90 models, including fluid changes, component replacement, and troubleshooting.

Technical Service Bulletin for AW55 Transmission Updates

Coming Soon

This bulletin outlines software updates and technical modifications for the AW55 transmission to address common performance issues and improve reliability.

Volvo XC90 Transmission Parts Catalog

Coming Soon

This catalog lists all compatible parts and accessories for the AW55 transmission in 2002-2014 Volvo XC90 models, including filters, seals, and gaskets.

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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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About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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