Subaru Subaru WRX 2014-2021 HVAC Specifications
Subaru Subaru WRX 2014-2021

Subaru Subaru WRX 2014-2021 HVAC Specifications

Explore detailed HVAC system specifications for the 2014-2021 Subaru WRX. Learn about components, refrigerant types, compressor details, and climate control functionalities. Ideal for maintenance, repair, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and information about the HVAC (Heating, Ventilation, and Air Conditioning) system for the 2014-2021 Subaru WRX. It is designed to help users understand the system's features, functionality, and technical details. Use this guide to navigate through sections, search for specific information, and quickly reference key specifications.

How to Use

Use the search functionality to find specific terms or topics within the document. Enter keywords related to the HVAC system, such as 'climate control' or 'airflow,' to locate relevant sections quickly.

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.

Key Specifications

Temperature Range

60°F to 90°F (15°C to 32°C)

Refrigerant Type

R134a

Cabin Air Filter Replacement

12,000-15,000 miles

Defrosting Time

3-5 minutes

Fan Speeds

3-speed (manual), variable (automatic)

Available Specifications

Climate Control System

This section covers the features and functionality of the automatic and manual climate control systems available in the 2014-2021 Subaru WRX. Learn about temperature regulation, airflow settings, and system controls.

Automatic Climate Control
  • Dual-zone automatic temperature control available in higher trims
  • Temperature range: 60°F to 90°F (15°C to 32°C)
  • Automatic adjustment of fan speed and airflow based on set temperature
  • Rear defroster integration for improved visibility
  • Optional air filtration system for enhanced air quality
Manual Climate Control
  • Standard in base models with rotary dials for temperature and fan speed
  • Three-speed fan control for customizable airflow
  • Direct airflow control with adjustable vents
  • Simple and intuitive interface for quick adjustments

Heating System

Explore the heating system's components and performance, including the heater core, defrosting capabilities, and energy efficiency. This section provides insights into how the system maintains cabin comfort in cold weather.

Heater Core and Performance
  • High-capacity heater core for rapid cabin warming
  • Efficient heat distribution to front and rear passengers
  • Defrosting mode for quick windshield and window clearing
  • Energy-efficient operation to minimize engine load
Defrosting Features
  • Front and rear defrosters as standard features
  • Automatic defrost activation in low-temperature conditions
  • Heated side mirrors for improved visibility in winter
  • Integration with climate control for seamless operation

Air Conditioning System

This section details the air conditioning system's components, cooling performance, and maintenance requirements. Learn about refrigerant types, compressor efficiency, and cabin cooling capabilities.

Cooling Performance
  • R134a refrigerant for efficient cooling
  • High-capacity compressor for rapid cabin cooling
  • Adjustable airflow direction for personalized comfort
  • Energy-saving mode to reduce fuel consumption
Maintenance and Refrigerant
  • Recommended refrigerant recharge interval: Every 2-3 years
  • Cabin air filter replacement every 12,000-15,000 miles
  • System diagnostics via OBD-II port for troubleshooting
  • Professional servicing recommended for major repairs

Ventilation and Air Quality

Discover the ventilation system's design and features, including air intake, cabin air filtration, and recirculation modes. This section highlights how the system ensures clean and fresh air inside the cabin.

Air Intake and Filtration
  • Dual air intake system for fresh and recirculated air
  • Cabin air filter with optional activated carbon for odor reduction
  • Pollen and dust filtration for improved air quality
  • Automatic recirculation mode in high-pollution environments
Ventilation Modes
  • Adjustable vent direction for personalized airflow
  • Footwell and windshield vent modes for targeted airflow
  • Recirculation mode for reduced external air intake
  • Automatic mode for balanced airflow distribution

Component Specifications

Overview

Type
Automatic Climate Control
Configuration
Dual-Zone
Platform
Integrated with Infotainment System
Material
High-Density Plastic and Aluminum
Location
Dashboard Center Console

Dimensions

Unit Width
12.5 inches (31.75 cm)
Unit Height
4.3 inches (10.92 cm)
Unit Depth
6.7 inches (17.02 cm)
Vent Diameter
2.5 inches (6.35 cm)
Duct Diameter
3 inches (7.62 cm)
Blower Motor Diameter
5.9 inches (15 cm)
Compressor Weight
15.4 lbs (7 kg)

Materials

Housing
High-Density ABS Plastic
Evaporator Coil
Aluminum
Condenser Coil
Aluminum
Blower Fan
Polypropylene
Ducting
Reinforced Rubber

Features

Climate Control
  • Dual-Zone Temperature Control
  • Automatic Air Recirculation
  • Defrost Mode with Humidity Sensor
  • Rear Defogger Integration
Airflow Management
  • Multi-Directional Vents
  • Variable Blower Speeds
  • Pollen Filter
  • Air Quality Sensor
Energy Efficiency
  • Eco Mode
  • Automatic Shutoff
  • Low Power Consumption Compressor
  • Insulated Ducting
User interface
  • Touchscreen Controls
  • Voice Command Integration
  • Steering Wheel Controls
  • Mobile App Connectivity
Safety
  • Overheat Protection
  • Low Refrigerant Detection
  • Automatic Shutdown on Fault

Safety Features

System Protection
  • High-Pressure Cutoff Switch
  • Low-Pressure Cutoff Switch
  • Thermal Fuse
User Safety
  • Child Lock for Controls
  • Auto Shutdown on Overheating
  • Non-Toxic Refrigerant
Emergency Features
  • Defrost Priority Mode
  • Emergency Airflow Redirection
  • Battery Saver Mode

Comfort Features

Temperature Control
  • Precision Dual-Zone Adjustment
  • Heated Seats Integration
  • Cooled Seats Integration
Air Quality
  • Pollen Filter
  • Activated Carbon Filter
  • Ionizer
Noise Reduction
  • Quiet Blower Motor
  • Insulated Ducting
  • Vibration Dampening
Convenience
  • Auto Memory Settings
  • Remote Start Pre-Conditioning
  • Voice-Activated Controls

Accessories

Filters
  • Cabin Air Filter
  • Activated Carbon Filter
  • HEPA Filter
Upgrades
  • Performance Blower Motor
  • Upgraded Compressor
  • Smart Thermostat Integration
Maintenance Tools
  • Refrigerant Recharge Kit
  • Duct Cleaning Brush
  • Blower Motor Lubricant

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 Coil
  • Inspect Ducting for Leaks
Maintenance Notes
Use only OEM-approved refrigerants and filters for optimal performance.

Warranty

Basic Warranty
Miles: 36,000
Years: 3
Coverage: Parts and Labor
Powertrain Warranty
Miles: 60,000
Years: 5
Coverage: Compressor and Blower Motor
Corrosion Warranty
Miles: Unlimited
Years: 5
Coverage: Housing and Ducting
Emissions Warranty
Miles: 80,000
Years: 8
Coverage: Refrigerant System

Production Details

Manufacturer
Subaru Corporation
Manufacturing Process
  • Injection Molding for Housing
  • Robotic Assembly for Coils
  • Precision Calibration for Sensors
Quality Control
Testing: Pressure Testing, Leak Detection, Performance Calibration
Certifications: ISO 9001, ISO 14001
Sustainability Practices
  • Recyclable Materials
  • Low-Emission Manufacturing
  • Energy-Efficient Production
Production Metrics
Units Per Year: 150,000
Defect Rate: 0.05%
Energy Consumption: 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 Coil
  • Inspect Ducting for Leaks

Ensure all connections are secure and free of debris.

30,000
24
  • Replace Activated Carbon Filter
  • Inspect Compressor Performance
  • Check Electrical Connections
  • Test Airflow Distribution

Use diagnostic tools to verify system performance.

60,000
48
  • Replace Refrigerant
  • Inspect and Lubricate Blower Motor
  • Check Condenser Coil for Damage
  • Perform Full System Calibration

Major service interval; may require specialized tools.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is the HVAC system compatible with all 2014-2021 Subaru WRX models?

The HVAC system is designed to be compatible with all 2014-2021 Subaru WRX models, including both the base and premium trims. However, slight variations may exist in wiring harnesses or control modules for models with additional features like dual-zone climate control. Always verify compatibility using your vehicle's VIN or consult a Subaru dealership for confirmation.

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 as specified in your owner's manual. Inspect refrigerant levels annually and recharge if necessary. Check for leaks in the system and ensure the blower motor and vents are clean. Regular servicing by a certified technician is recommended.

Q3

How do I replace the cabin air filter in my Subaru WRX?

To replace the cabin air filter, locate the filter housing behind the glove compartment. Open the glove box, remove the retaining clips, and gently lower the compartment. Unclip the filter cover, remove the old filter, and insert the new one, ensuring it faces the correct direction. Reassemble the glove box and secure the clips. Refer to your owner's manual for detailed instructions.

Q4

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

If your HVAC system is not blowing cold air, first check the refrigerant levels and recharge if low. Inspect for leaks in the system. Ensure the compressor is engaging when the AC is turned on. If the issue persists, check the blower motor, fuses, and relays. A professional diagnostic may be required to identify and resolve the problem.

Q5

How can I optimize the performance of my HVAC system?

To optimize HVAC performance, regularly replace the cabin air filter and ensure the system is free of debris. Use the recirculation mode in hot weather to cool the cabin faster. Park in shaded areas to reduce heat buildup. Schedule annual inspections to check refrigerant levels, compressor function, and overall system health.

Factory Service Resources

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

2014-2021 Subaru WRX HVAC Service Manual

Coming Soon

Detailed service manual covering HVAC system components, diagnostics, and repair procedures for 2014-2021 Subaru WRX models.

Subaru Technical Service Bulletin: HVAC System Update

Coming Soon

Technical bulletin addressing common HVAC system issues and recommended updates for 2014-2021 Subaru WRX models.

Subaru WRX HVAC Parts and Accessories Guide

Coming Soon

Comprehensive guide listing OEM and aftermarket HVAC parts and accessories for 2014-2021 Subaru WRX 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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