Subaru Subaru Legacy 2005-2009 HVAC Specifications
Explore the detailed HVAC system specifications for the 2005-2009 Subaru Legacy. This guide covers components, technical details, maintenance tips, and repair insights for optimal performance.
Overview Specifications
This document provides detailed specifications and technical information about the HVAC (Heating, Ventilation, and Air Conditioning) system for the 2005-2009 Subaru Legacy. It is designed to assist users in understanding the system's features, functionality, and maintenance requirements. Use this guide to navigate through sections, find specific details, and reference key specifications for troubleshooting or upgrades.
How to Use
Use the search functionality to locate specific terms or components within the document. Enter keywords related to the HVAC system, such as 'blower motor' or 'refrigerant type,' to quickly find relevant information.
Navigate through the document by scrolling through the sections or using the table of contents. Each section is organized into subsections with detailed points for easy reference. Use the quick reference table for a summary of key specifications.
Key Specifications
Refrigerant Type
R134a
Cooling Capacity
12,000 BTU/h
Heating Capacity
18,000 BTU/h
Airflow Rate
300-400 CFM
Refrigerant Capacity
18-20 oz
Available Specifications
HVAC System Overview
This section provides an overview of the HVAC system in the 2005-2009 Subaru Legacy, including its components, functionality, and general operation. Learn about the system's design and how it integrates with the vehicle's overall climate control features.
HVAC System Overview
This section provides an overview of the HVAC system in the 2005-2009 Subaru Legacy, including its components, functionality, and general operation. Learn about the system's design and how it integrates with the vehicle's overall climate control features.
System Components
- Dual-zone automatic climate control system
- Blower motor and fan assembly
- Heater core and evaporator core
- Air conditioning compressor
- Refrigerant type: R134a
- Cabin air filter for air purification
Operation Modes
- Automatic temperature control with dual-zone settings
- Manual override for fan speed and temperature
- Defrost and defog modes for windshield and side windows
- Recirculation mode for improved cooling efficiency
- Airflow distribution controls for floor, dash, and windshield vents
Maintenance and Troubleshooting
This section covers maintenance tips and troubleshooting steps for the HVAC system. Learn how to perform routine checks, identify common issues, and resolve problems related to heating, cooling, and ventilation.
Maintenance and Troubleshooting
This section covers maintenance tips and troubleshooting steps for the HVAC system. Learn how to perform routine checks, identify common issues, and resolve problems related to heating, cooling, and ventilation.
Routine Maintenance
- Replace cabin air filter every 12,000-15,000 miles
- Inspect refrigerant levels annually
- Check for leaks in the AC system
- Clean evaporator and condenser coils as needed
- Lubricate blower motor bearings periodically
Common Issues
- Weak airflow due to clogged cabin air filter
- Inconsistent cooling caused by low refrigerant levels
- Unusual noises from the blower motor
- Foggy windows due to faulty defrost mode
- AC compressor failure or clutch issues
Technical Specifications
This section provides detailed technical specifications for the HVAC system, including performance metrics, component dimensions, and system capacities. Use this information for repairs, upgrades, or compatibility checks.
Technical Specifications
This section provides detailed technical specifications for the HVAC system, including performance metrics, component dimensions, and system capacities. Use this information for repairs, upgrades, or compatibility checks.
Performance Metrics
- Cooling capacity: 12,000 BTU/h
- Heating capacity: 18,000 BTU/h
- Airflow rate: 300-400 CFM
- Refrigerant capacity: 18-20 oz
- Power consumption: 500-600 watts
Component Dimensions
- Blower motor diameter: 6 inches
- Evaporator core size: 12 x 8 x 2 inches
- Heater core size: 10 x 6 x 2 inches
- Compressor dimensions: 8 x 6 x 5 inches
- Cabin air filter size: 9.5 x 7.5 x 1 inches
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Component Specifications
Overview
- Type
- Automatic Climate Control
- Configuration
- Dual-Zone
- Platform
- Subaru Legacy 2005-2009
- Material
- Plastic, Aluminum, Rubber
- Location
- Dashboard and Front Console
Dimensions
- Blower Motor Diameter
- 6.5 inches / 165 mm
- Evaporator Core Length
- 12.8 inches / 325 mm
- Condenser Core Width
- 22.4 inches / 569 mm
- Compressor Height
- 5.9 inches / 150 mm
- Heater Core Thickness
- 1.2 inches / 30 mm
- Duct Diameter
- 3.1 inches / 80 mm
- Control Panel Width
- 8.3 inches / 210 mm
Materials
- Blower Motor
- Aluminum Housing, Plastic Fan
- Evaporator Core
- Aluminum Fins, Copper Tubing
- Condenser Core
- Aluminum Fins, Aluminum Tubing
- Heater Core
- Brass Tubes, Aluminum Fins
- Ducting
- Rubber and Plastic Composite
Features
- Climate Control
-
- Dual-Zone Temperature Control
- Automatic Air Recirculation
- Defrost Mode with Humidity Sensor
- Rear Defogger Integration
- Airflow
-
- Multi-Speed Blower
- Adjustable Vents
- Rear Passenger Vents
- Footwell Air Distribution
- Filtration
-
- Cabin Air Filter
- Pollen Filter
- Odor Reduction
- Comfort
-
- Heated Seats Integration
- Steering Wheel Heat Control
- Quiet Operation Mode
- Diagnostics
-
- Self-Diagnostic System
- Error Code Display
- Low Refrigerant Detection
Safety Features
- Overheat Protection
-
- High-Temperature Cutoff
- Compressor Overload Protection
- Air Quality
-
- Carbon Monoxide Detection
- Automatic Recirculation in Polluted Air
- System integrity
-
- Leak Detection
- Pressure Relief Valve
Comfort Features
- Temperature Control
-
- Precise Dual-Zone Adjustment
- Auto Mode for Optimal Comfort
- Airflow Control
-
- Adjustable Fan Speed
- Directional Airflow
- Noise Reduction
-
- Quiet Blower Operation
- Vibration Dampening
- Convenience
-
- Remote Start Climate Control
- Memory Settings for Driver Preferences
Accessories
- Filters
-
- Cabin Air Filter
- Pollen Filter
- Activated Carbon Filter
- Upgrades
-
- Aftermarket Heated Seats
- Upgraded Blower Motor
- Enhanced Climate Control Module
- Tools
-
- Refrigerant Recharge Kit
- Pressure Gauge Set
- Leak Detection Dye
Maintenance
- Service interval
- Every 15,000 miles or 12 months
- Service Items
-
- Inspect and Replace Cabin Air Filter
- Check Refrigerant Levels
- Inspect Blower Motor Operation
- Test Compressor Functionality
- Clean Evaporator and Condenser Cores
- Maintenance Notes
- Use only OEM-approved refrigerants and lubricants.
Warranty
- Basic Warranty
- Miles: 36,000Years: 3Coverage: Parts and Labor
- Powertrain Warranty
- Miles: 60,000Years: 5Coverage: Compressor and Blower Motor
- Emissions Warranty
- Miles: 80,000Years: 8Coverage: Evaporator and Condenser
- Extended Warranty
- Miles: 100,000Years: 10Coverage: Full HVAC System
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Automated Assembly Line
- Precision Welding for Cores
- Quality Testing for Leaks
- Quality Control
- Pressure Testing: 200 PSITemperature Testing: -40°F to 200°FVibration Testing: 10,000 Cycles
- Sustainability Practices
-
- Recyclable Materials
- Low-Emission Refrigerants
- Energy-Efficient Production
- Production Metrics
- Units Per Year: 500,000Defect Rate: 0.1%Energy Usage: 15 kWh per Unit
Service Information for HVAC Service
Maintenance and service requirements specific to the HVAC system
- Inspect and Replace Cabin Air Filter
- Check Refrigerant Levels
- Test Blower Motor Operation
- Inspect Ducts for Blockages
Ensure proper refrigerant type is used.
- Clean Evaporator and Condenser Cores
- Inspect Compressor Belt
- Check Electrical Connections
- Test Climate Control Sensors
Use diagnostic tools for sensor testing.
- Replace Refrigerant
- Inspect and Lubricate Blower Motor
- Check Heater Core for Leaks
- Perform Full System Diagnostics
Major service requires specialized equipment.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Is the HVAC system compatible with aftermarket parts for the 2005-2009 Subaru Legacy?
Is the HVAC system compatible with aftermarket parts for the 2005-2009 Subaru Legacy?
The HVAC system in the 2005-2009 Subaru Legacy is compatible with select aftermarket parts, but it is recommended to use OEM components for optimal performance. Aftermarket parts must meet Subaru's specifications, including voltage, airflow, and connector compatibility. Always verify compatibility with your vehicle's trim level and model year before purchasing.
Q2 What is the recommended maintenance schedule for the HVAC system?
What is the recommended maintenance schedule for the HVAC system?
The HVAC system in the 2005-2009 Subaru Legacy requires regular maintenance to ensure efficiency. Replace the cabin air filter every 15,000-30,000 miles, inspect refrigerant levels annually, and check for leaks or unusual noises. Clean the evaporator and condenser coils every 2-3 years. Regular inspections by a certified technician are recommended to maintain optimal performance.
Q3 How do I replace the cabin air filter in my 2005-2009 Subaru Legacy?
How do I replace the cabin air filter in my 2005-2009 Subaru Legacy?
To replace the cabin air filter, locate the filter housing behind the glove compartment. Open the glove box, remove the retaining clips, and carefully detach the housing cover. Slide out the old filter and insert the new one, ensuring it is oriented correctly. Reassemble the housing and glove box. Refer to the owner's manual for detailed instructions and safety precautions.
Q4 Why is my HVAC system blowing warm air instead of cold?
Why is my HVAC system blowing warm air instead of cold?
If your HVAC system is blowing warm air, check the refrigerant levels, as low refrigerant is a common cause. Inspect the compressor for proper operation and ensure the condenser is not blocked. Faulty blend doors or electrical issues may also cause this problem. A professional diagnostic scan is recommended to identify and resolve the issue.
Q5 How can I optimize the performance of my HVAC system?
How can I optimize the performance of my HVAC system?
To optimize HVAC performance, ensure the system is free of debris and the cabin air filter is clean. Use the recirculation mode to reduce strain on the system. Regularly check refrigerant levels and inspect for leaks. Park in shaded areas to reduce heat buildup. Schedule annual maintenance with a certified technician to address potential issues early.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2005-2009 Subaru Legacy HVAC Service Manual
Coming SoonDetailed service manual covering HVAC system components, diagnostics, and repair procedures for the 2005-2009 Subaru Legacy.
Subaru Technical Service Bulletin: HVAC System Updates
Coming SoonTechnical bulletin addressing common HVAC system issues, updates, and recommended fixes for the 2005-2009 Subaru Legacy.
Subaru Legacy HVAC Parts Catalog
Coming SoonComprehensive catalog of OEM and compatible aftermarket HVAC parts for the 2005-2009 Subaru Legacy.
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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.
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