Subaru Subaru Legacy 2010-2014 HVAC Specifications
Subaru Subaru Legacy 2010-2014

Subaru Subaru Legacy 2010-2014 HVAC Specifications

Explore the comprehensive HVAC system specifications for the 2010-2014 Subaru Legacy. Learn about components, performance, maintenance, and repair tips for optimal heating and cooling functionality.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the HVAC (Heating, Ventilation, and Air Conditioning) system for the 2010-2014 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 quick access.

How to Use

Use the search functionality to quickly locate specific terms or components within the document. Enter keywords related to the HVAC system, such as 'blower motor' or 'refrigerant type,' to 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

14,000 BTU/h

Heating Capacity

18,000 BTU/h

Airflow Rate

300-400 CFM

Cabin Air Filter Size

9.5 x 7.5 x 1 inches

Available Specifications

HVAC System Overview

This section provides an overview of the HVAC system in the 2010-2014 Subaru Legacy, including its components, functionality, and general operation. Learn about the system's design and how it ensures passenger comfort in various driving conditions.

System Components
  • Dual-zone automatic climate control
  • Blower motor and fan assembly
  • Heater core and evaporator core
  • Air conditioning compressor
  • Refrigerant type: R134a
  • Cabin air filter
Operation Modes
  • Auto mode for temperature regulation
  • Manual mode for custom settings
  • Defrost mode for windshield and windows
  • Rear defogger integration
  • Air recirculation mode

Maintenance and Troubleshooting

This section covers maintenance tips and troubleshooting steps for the HVAC system. Learn how to keep the system running efficiently and address common issues such as poor airflow or unusual noises.

Routine Maintenance
  • Replace cabin air filter every 12,000-15,000 miles
  • Check refrigerant levels annually
  • Inspect blower motor for debris
  • Clean evaporator core as needed
Common Issues
  • Weak airflow due to clogged filter
  • Unusual noises from blower motor
  • Inconsistent temperature control
  • Refrigerant leaks

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 or upgrades.

Performance Metrics
  • Cooling capacity: 14,000 BTU/h
  • Heating capacity: 18,000 BTU/h
  • Airflow rate: 300-400 CFM
  • Compressor displacement: 160 cc
Component Dimensions
  • Evaporator core size: 12 x 8 x 2 inches
  • Heater core size: 10 x 6 x 2 inches
  • Blower motor diameter: 6 inches
  • Cabin air filter dimensions: 9.5 x 7.5 x 1 inches

Component Specifications

Overview

Type
Automatic Climate Control
Configuration
Dual-Zone
Platform
Integrated HVAC System
Material
High-Density Plastic and Aluminum
Location
Front Dashboard

Dimensions

Width
24.5 inches (62.2 cm)
Height
8.7 inches (22.1 cm)
Depth
12.3 inches (31.2 cm)
Duct Diameter
2.5 inches (6.35 cm)
Blower Motor Size
6.3 inches (16 cm)
Evaporator Core Size
12.8 x 8.5 inches (32.5 x 21.6 cm)
Condenser Core Size
18.7 x 10.2 inches (47.5 x 25.9 cm)

Materials

Housing
High-Density Plastic
Evaporator Core
Aluminum
Condenser Core
Aluminum
Blower Motor
Copper Windings and Steel Housing
Ducting
Reinforced Rubber and Plastic

Features

Climate Control
  • Dual-Zone Temperature Control
  • Automatic Air Recirculation
  • Defogging Sensor
  • Sunlight Sensor
Air Flow
  • Multi-Directional Vents
  • Rear Seat Vents
  • Variable Blower Speeds
  • Pollen Filter
Heating
  • Rapid Heating
  • Seat Heating Integration
  • Defrost Mode
Cooling
  • Rapid Cooling
  • Eco Mode
  • Auto Start/Stop Function
Display
  • LCD Temperature Display
  • Touch Controls
  • Backlit Buttons

Safety Features

Overheat Protection
  • Automatic Shutoff
  • Temperature Sensors
Air Quality
  • Pollen Filter
  • Auto Recirculation
System Monitoring
  • Fault Detection
  • Diagnostic Codes

Comfort Features

Temperature Control
  • Precise Dual-Zone Control
  • Auto Mode
Air Distribution
  • Multi-Level Vents
  • Rear Seat Vents
Noise Reduction
  • Quiet Blower Motor
  • Insulated Ducting
Convenience
  • Auto Defogging
  • Remote Start Integration

Accessories

Filters
  • Cabin Air Filter
  • Pollen Filter
  • Activated Carbon Filter
Upgrades
  • Heated Seats
  • Rear Climate Control
  • Remote Start Kit
Maintenance Tools
  • Diagnostic Scanner
  • Refrigerant Recharge Kit
  • Cleaning Brush Set

Maintenance

Service interval
Every 15,000 miles or 12 months
Service Items
  • Replace Cabin Air Filter
  • Inspect Refrigerant Levels
  • Check Blower Motor Function
  • Clean Evaporator Core
  • Inspect Ducting for Leaks
Maintenance Notes
Use only OEM-approved refrigerant and filters.

Warranty

Basic Warranty
Miles: 36,000
Years: 3
Coverage: Parts and Labor
Powertrain Warranty
Miles: 60,000
Years: 5
Coverage: HVAC Compressor and Condenser
Emissions Warranty
Miles: 80,000
Years: 8
Coverage: Evaporator Core
Extended Warranty
Miles: 100,000
Years: 10
Coverage: Full HVAC System

Production Details

Manufacturer
Subaru Corporation
Manufacturing Process
  • Injection Molding
  • Aluminum Extrusion
  • Automated Assembly
Quality Control
Testing: Pressure Testing, Leak Detection, Performance Calibration
Standards: ISO 9001 Certified
Sustainability Practices
  • Recycled Materials
  • Energy-Efficient Production
  • Low-Emission Refrigerant
Production Metrics
Units Per Year: 500,000
Defect Rate: 0.1%
Energy Usage: 15 kWh per unit

Service Information for HVAC Service

Maintenance and service requirements specific to the HVAC system

15,000
12
  • Replace Cabin Air Filter
  • Inspect Refrigerant Levels
  • Check Blower Motor Function
  • Clean Evaporator Core
  • Inspect Ducting for Leaks

Use only OEM-approved refrigerant and filters.

30,000
24
  • Replace Pollen Filter
  • Inspect Compressor Function
  • Check Condenser for Debris
  • Test Temperature Sensors
  • Inspect Electrical Connections

Ensure proper refrigerant levels before testing.

60,000
48
  • Replace Refrigerant
  • Inspect Evaporator Core for Corrosion
  • Check Blower Motor Bearings
  • Test System Pressure
  • Calibrate Climate Control

Major service requires specialized tools and equipment.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is the HVAC system compatible with all 2010-2014 Subaru Legacy models?

The HVAC system is compatible with all 2010-2014 Subaru Legacy models, including 2.5i, 2.5GT, and 3.6R trims. However, slight variations may exist in the control interface or wiring harnesses between trims. Always verify the specific model and trim before purchasing or installing components. Refer to the vehicle's VIN or consult a Subaru dealership for precise compatibility details.

Q2

What are the maintenance requirements for the HVAC system?

The HVAC system requires regular maintenance to ensure optimal performance. Replace the cabin air filter every 12,000-15,000 miles or annually. Inspect refrigerant levels and system pressure every 30,000 miles. Clean the evaporator and condenser coils every 50,000 miles. Check for leaks, unusual noises, or reduced airflow, and address issues promptly to avoid costly repairs.

Q3

How do I replace the cabin air filter in a 2010-2014 Subaru Legacy?

To replace the cabin air filter, locate the filter housing behind the glove box. Open the glove box and remove the stoppers or screws securing it. Push the glove box sides inward to release it. Open the filter housing cover, remove the old filter, and insert the new one, ensuring the airflow arrow points downward. Reassemble the glove box and test the HVAC system.

Q4

What should I do if the HVAC system is not blowing cold air?

If the HVAC system is not blowing cold air, check the refrigerant levels and recharge if necessary. Inspect the compressor clutch for engagement and ensure the condenser and evaporator coils are clean. Test the blower motor and fuses for functionality. If issues persist, consult a professional to diagnose potential leaks, sensor failures, or electrical problems.

Q5

How can I optimize the performance of my HVAC system?

To optimize HVAC performance, regularly clean or replace the cabin air filter. Ensure the refrigerant is at the correct level and the system is free of leaks. Use the recirculation mode to reduce strain on the system. Park in shaded areas to minimize heat buildup. Schedule annual inspections to address minor issues before they escalate.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

2010-2014 Subaru Legacy HVAC Service Manual

Coming Soon

Detailed service manual covering HVAC system components, diagnostics, and repair procedures for 2010-2014 Subaru Legacy models.

Technical Service Bulletin: HVAC System Updates

Coming Soon

TSB outlining common HVAC issues, updates, and recommended fixes for 2010-2014 Subaru Legacy models.

Subaru Legacy HVAC Parts Catalog

Coming Soon

Comprehensive catalog of OEM HVAC parts and accessories for 2010-2014 Subaru Legacy models.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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