Volvo Volvo C70 1997-2005 AW55 Transmission Specifications
This document provides a detailed overview of the AW55 automatic transmission specifications for the 1997-2005 Volvo C70. It includes technical details such as gear ratios, fluid capacity, torque converter specifications, and shift patterns. The purpose of this document is to assist mechanics, enthusiasts, and owners in understanding the transmission's design, performance, and maintenance requirements. It serves as a valuable resource for diagnosing issues, performing repairs, or upgrading the transmission for enhanced performance. Whether you're a professional technician or a DIY enthusiast, this guide offers essential insights to ensure optimal transmission functionality and longevity.
Overview Specifications
This document provides detailed specifications and technical information about the AW55 transmission used in the 1997-2005 Volvo C70. 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.
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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
75 kg
Service Interval
60,000 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 components, materials, and layout, providing a comprehensive understanding of its engineering.
Design and Construction
This section covers the design features and construction details of the AW55 transmission. It includes information about the transmission's components, materials, and layout, providing a comprehensive understanding of its engineering.
Transmission Layout
- 5-speed automatic transmission with front-wheel drive configuration
- Compact design for efficient space utilization
- Aluminum alloy casing for reduced weight
- Integrated torque converter for smooth power delivery
- Electronically controlled valve body for precise shifting
Key Components
- Planetary gearset for multiple gear ratios
- Hydraulic clutch packs for gear engagement
- Solenoid valves for electronic control
- Transmission fluid cooler for temperature regulation
- Sealed bearings for durability and reduced maintenance
Operation and Performance
This section explains how the AW55 transmission operates and its performance characteristics. It includes details about shift patterns, torque handling, and efficiency, helping users optimize the transmission's performance.
Operation and Performance
This section explains how the AW55 transmission operates and its performance characteristics. It includes details about shift patterns, torque handling, and efficiency, helping users optimize the transmission's performance.
Shift Patterns
- Adaptive shift logic for smooth gear changes
- Manual mode for driver-controlled shifting
- Winter mode for improved traction in low-grip conditions
- Kickdown feature for rapid acceleration
- Rev-matching during downshifts for smoother transitions
Torque and Power Handling
- Rated for up to 330 Nm of torque
- Designed for engines up to 250 horsepower
- Efficient power transfer with minimal losses
- Robust clutch materials for high-stress conditions
- Optimized gear ratios for balanced performance and fuel economy
Maintenance and Troubleshooting
This section provides guidance on maintaining the AW55 transmission and troubleshooting common issues. It includes fluid specifications, service intervals, and diagnostic tips to ensure longevity and reliability.
Maintenance and Troubleshooting
This section provides guidance on maintaining the AW55 transmission and troubleshooting common issues. It includes fluid specifications, service intervals, and diagnostic tips to ensure longevity and reliability.
Fluid Specifications
- Use only JWS 3309 or equivalent transmission fluid
- Fluid capacity: 7.2 liters (including torque converter)
- Fluid change interval: 60,000 miles or 5 years
- Fluid level checked via dipstick or fill plug
- Avoid mixing different fluid types to prevent damage
Common Issues and Solutions
- Delayed or harsh shifting: Check fluid level and condition
- Transmission slipping: Inspect clutch packs and solenoids
- Error codes: Use diagnostic tools to identify faults
- Overheating: Verify fluid cooler functionality
- Unusual noises: Inspect bearings and gears for wear
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Transmission Specifications
Overview
- Type
- Automatic Transmission
- Configuration
- 5-speed with adaptive shift control
- Platform
- Volvo P1 platform
- Material
- Aluminum alloy casing
- Location
- Front-wheel drive configuration
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
- 1.2 inches (30.5 mm)
- Output Shaft Diameter
- 1.1 inches (28 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
-
- Adaptive shift logic
- Manual shift mode
- Winter mode
- Sport mode
- Cooling
-
- Integrated transmission cooler
- Thermostatic control
- Fluid temperature sensor
- Sensors
-
- Input speed sensor
- Output speed sensor
- Fluid temperature sensor
- Gear position sensor
- Lubrication
-
- High-pressure pump
- Filtered fluid circulation
- Splash lubrication
- Durability
-
- Hardened gear teeth
- Reinforced clutch packs
- Corrosion-resistant casing
Safety Features
- Fail Safe
-
- Limp-home mode
- Overheat protection
- Fluid pressure monitoring
- Mechanical
-
- Shear pin protection
- Overload clutch protection
Comfort Features
- Shift Quality
-
- Smooth gear transitions
- Adaptive shift timing
- Reduced shift shock
- Noise Reduction
-
- Helical cut gears
- Vibration dampening mounts
- Sound-insulated casing
- Driving Modes
-
- Eco mode
- Sport mode
- Winter mode
Accessories
- Fluids
-
- ATF JWS 3309
- Transmission flush kit
- Seal conditioner
- Tools
-
- Transmission jack adapter
- Fluid pump
- Diagnostic scanner
- Upgrades
-
- Performance shift kit
- Enhanced cooler
- Heavy-duty clutch packs
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fluid and filter replacement
- Seal inspection
- Clutch pack wear check
- Sensor calibration
- 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: Casing and seals
- Extended
- Miles: 150,000Years: 10Coverage: Optional extended coverage
Production Details
- Manufacturer
- Aisin Warner
- Manufacturing Process
-
- CNC machining
- Heat treatment
- Precision assembly
- Quality Control
- Testing: Durability testing, Shift performance testing, Leak testingStandards: ISO 9001 certified
- Sustainability
-
- Recyclable materials
- Low-emission manufacturing
- Energy-efficient processes
- Production Metrics
- Units Per Year: 500,000Defect Rate: 0.01%
Service Information for aw55 transmission Service
Maintenance and service requirements specific to this component
- Fluid and filter replacement
- Seal inspection
- Shift linkage adjustment
- Sensor calibration
Use only ATF JWS 3309 fluid.
- Clutch pack wear check
- Transmission mount inspection
- Cooler line inspection
- Fluid flush
Inspect for leaks and wear.
- Complete fluid flush
- Clutch pack replacement if needed
- Shift solenoid inspection
- Transmission overhaul if required
Major service interval; consider professional inspection.
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 1997-2005 Volvo C70, is also compatible with other Volvo models such as the S60, S80, V70, and XC70 from the same era. It is designed for transverse engine configurations and supports both 5-speed automatic and manual modes. Always verify the specific model year and engine type for 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, including fluid changes every 30,000 to 60,000 miles. Use only Volvo-approved ATF (Automatic Transmission Fluid) to ensure optimal performance. Inspect for leaks, replace the transmission filter, and check the fluid level regularly. Proper maintenance prevents premature wear and ensures smooth shifting.
Q3 How do I replace the AW55 transmission in a Volvo C70?
How do I replace the AW55 transmission in a Volvo C70?
To replace the AW55 transmission, first, disconnect the battery and drain the transmission fluid. Remove the driveshaft, exhaust components, and transmission mounts. Disconnect the wiring harness and shift linkage. Use a transmission jack to lower the old unit and install the new one. Reconnect all components, refill with ATF, and test for proper operation.
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 gears, or transmission failure. Start by checking the fluid level and condition. Inspect for leaks, damaged wiring, or faulty sensors. Use a diagnostic tool to read error codes. If the problem persists, consider a transmission flush or professional inspection to identify internal damage.
Q5 How can I optimize the performance of the AW55 transmission?
How can I optimize the performance of the AW55 transmission?
To optimize performance, use high-quality ATF and ensure regular fluid changes. Avoid aggressive driving and overheating. Install an auxiliary transmission cooler if towing or driving in hot climates. Regularly inspect and maintain the transmission mounts and linkages to ensure smooth operation and longevity.
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 C70 AW55 Transmission Service Manual
Coming SoonDetailed service manual covering installation, maintenance, and troubleshooting for the AW55 transmission in the 1997-2005 Volvo C70.
AW55 Transmission Technical Bulletin
Coming SoonTechnical service bulletin addressing common issues, updates, and fixes for the AW55 transmission in Volvo vehicles.
Volvo C70 Transmission Parts Catalog
Coming SoonComprehensive catalog of OEM and aftermarket parts for the AW55 transmission, including gaskets, filters, and seals.
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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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