Volkswagen Volkswagen Golf 2009-2012 HVAC Specifications
Volkswagen Volkswagen Golf 2009-2012

Volkswagen Volkswagen Golf 2009-2012 HVAC Specifications

Explore the comprehensive HVAC specifications for the 2009-2012 Volkswagen Golf, including system components, performance metrics, and maintenance tips. Ideal for technicians and owners seeking detailed climate control system information.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the HVAC (Heating, Ventilation, and Air Conditioning) system for the 2009-2012 Volkswagen Golf. It is designed to assist users in understanding the system's components, functionality, and maintenance requirements. Use this guide to navigate through sections, search for specific details, and reference key specifications for quick access to essential information.

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 by major topics, with subsections providing detailed technical points for easy reference.

Key Specifications

Cooling Capacity

12,000 BTU/h

Heating Capacity

5,000 BTU/h

Airflow Rate

400 CFM

Refrigerant Type

R134a

Power Consumption

150W

Available Specifications

HVAC System Overview

This section provides a high-level overview of the HVAC system in the 2009-2012 Volkswagen Golf. It covers the primary components, their functions, and how they work together to provide climate control within the vehicle.

System Components
  • Blower motor for air circulation
  • Evaporator for cooling
  • Heater core for heating
  • Compressor for refrigerant circulation
  • Condenser for heat dissipation
  • Control panel for user interface
System Functionality
  • Dual-zone climate control for driver and passenger
  • Automatic temperature regulation
  • Air filtration system for improved air quality
  • Defrost and defogging capabilities

Maintenance and Troubleshooting

This section outlines maintenance procedures and common troubleshooting steps for the HVAC system. It includes information on routine checks, component replacements, and diagnosing common issues.

Routine Maintenance
  • Replace cabin air filter every 15,000 miles
  • Check refrigerant levels annually
  • Inspect blower motor for wear and tear
  • Clean evaporator and condenser coils
Common Issues
  • Weak airflow due to clogged filters
  • 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.

Performance Metrics
  • Cooling capacity: 12,000 BTU/h
  • Heating capacity: 5,000 BTU/h
  • Airflow rate: 400 CFM
  • Power consumption: 150W
Component Dimensions
  • Evaporator size: 12 x 8 x 4 inches
  • Condenser size: 18 x 12 x 2 inches
  • Blower motor diameter: 6 inches
  • Compressor weight: 15 lbs

Component Specifications

Overview

Type
Automatic Climate Control
Configuration
Dual-Zone
Platform
PQ35
Material
Plastic and Aluminum
Location
Dashboard Center

Dimensions

Height
8.5 inches (21.6 cm)
Width
12.2 inches (31 cm)
Depth
6.7 inches (17 cm)
Duct Diameter
2.5 inches (6.35 cm)
Blower Motor Diameter
5.9 inches (15 cm)
Compressor Weight
15.4 lbs (7 kg)
Condenser Thickness
0.6 inches (1.5 cm)

Materials

Housing
High-strength ABS plastic
Evaporator
Aluminum fins with copper tubing
Condenser
Aluminum
Blower Motor
Thermoplastic with copper windings
Ducting
Reinforced rubber and plastic

Features

Climate Control
  • Dual-zone temperature adjustment
  • Automatic air recirculation
  • Defrost timer
  • Humidity sensor
Air Distribution
  • 4-speed blower motor
  • Adjustable side vents
  • Rear footwell vents
  • Windshield defrost vents
Filtration
  • Cabin air filter
  • Pollen filter
  • Activated carbon filter
Cooling
  • R134a refrigerant
  • Variable displacement compressor
  • High-efficiency condenser
Heating
  • Electric auxiliary heater
  • Radiator-based heating core
  • Quick heat function

Safety Features

Overheat Protection
  • Thermal fuse
  • High-pressure cut-off switch
Air Quality
  • CO2 sensor
  • Automatic recirculation in polluted air
System Monitoring
  • Refrigerant pressure sensor
  • Blower motor overload protection

Comfort Features

Temperature Control
  • Precision digital thermostats
  • Sunlight compensation sensor
Airflow Control
  • Adjustable vent direction
  • Quiet mode operation
Convenience
  • Auto start/stop with ignition
  • Memory function for settings
Air Quality
  • Ionizer function
  • Automatic air recirculation

Accessories

Filters
  • Standard cabin filter
  • Activated carbon filter
  • Antibacterial filter
Upgrades
  • Rear seat climate control
  • Heated windshield option
  • Remote start climate control
Tools
  • AC manifold gauge set
  • Refrigerant recovery machine
  • Vacuum pump

Maintenance

Service interval
Every 20,000 miles or 24 months
Service Items
  • Cabin air filter replacement
  • Refrigerant level check
  • Blower motor inspection
  • Condenser cleaning
  • Ductwork inspection
Maintenance Notes
Use only R134a refrigerant, avoid overcharging system

Warranty

Basic
Miles: 50,000
Years: 4
Coverage: Parts and labor
Compressor
Miles: 100,000
Years: 7
Coverage: Compressor unit only
Refrigerant
Miles: 75,000
Years: 5
Coverage: Refrigerant system components
Labor
Miles: 50,000
Years: 4
Coverage: Authorized service center labor

Production Details

Manufacturer
Behr GmbH
Manufacturing Process
  • Injection molding for plastic components
  • Brazing for aluminum heat exchangers
  • Automated assembly line
Quality Control
Pressure Testing: 300 psi
Leak Testing: Helium mass spectrometer
Performance Testing: Full system bench test
Sustainability
  • Recyclable materials
  • Low-GWP refrigerant
  • Energy-efficient production
Production Metrics
Units Per Day: 1200
Defect Rate: 0.02%
Energy Consumption: 15 kWh/unit

Service Information for HVAC Service

Maintenance and service requirements specific to the HVAC system

20,000
24
  • Inspect and clean condenser
  • Check refrigerant pressure
  • Test blower motor operation
  • Inspect ductwork for leaks
  • Replace cabin air filter

Use only manufacturer-approved refrigerant

40,000
48
  • Flush evaporator core
  • Check compressor clutch operation
  • Inspect electrical connections
  • Test climate control sensors
  • Verify system performance

Requires specialized diagnostic equipment

100,000
120
  • Replace refrigerant
  • Inspect and clean all ductwork
  • Check expansion valve operation
  • Test system pressure integrity
  • Replace compressor oil

Major service requires system evacuation and recharge

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is the HVAC system compatible with all 2009-2012 Volkswagen Golf models?

The HVAC system is compatible with most 2009-2012 Volkswagen Golf models, including the 2.5L, TDI, and GTI variants. However, specific configurations, such as dual-zone climate control, may require additional components or software updates. Always verify compatibility using your vehicle's VIN and consult the manufacturer's technical documentation for precise details.

Q2

What maintenance is required for the HVAC system in a 2009-2012 Volkswagen Golf?

Regular maintenance for the HVAC system includes replacing the cabin air filter every 15,000-20,000 miles, inspecting refrigerant levels annually, and checking for leaks or blockages in the system. Additionally, ensure the blower motor and condenser are functioning properly. Adhering to the maintenance schedule in the owner's manual will help maintain optimal performance and longevity.

Q3

How do I replace the cabin air filter in a 2009-2012 Volkswagen Golf?

To replace the cabin air filter, locate the filter housing behind the glove compartment. Remove the glove compartment by unscrewing the fasteners and gently pulling it out. Open the filter housing, remove the old filter, and insert the new one, ensuring it is oriented correctly. Reassemble the glove compartment and test the HVAC system to confirm proper airflow.

Q4

What should I do if the HVAC system in my 2009-2012 Volkswagen Golf is not blowing cold air?

If the HVAC system is not blowing cold air, first check the refrigerant levels and inspect for leaks. Ensure the compressor is engaging when the AC is turned on. If the issue persists, inspect the blower motor, condenser, and electrical connections. A diagnostic scan tool can help identify error codes related to the HVAC system for further troubleshooting.

Q5

How can I optimize the performance of the HVAC system in my 2009-2012 Volkswagen Golf?

To optimize HVAC performance, regularly clean the condenser and evaporator coils, ensure proper refrigerant levels, and replace the cabin air filter as needed. Use the recirculation mode to improve cooling efficiency and reduce strain on the system. Avoid overloading the system by setting the temperature to moderate levels and performing routine inspections to address minor issues promptly.

Factory Service Resources

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

Volkswagen Golf 2009-2012 HVAC Service Manual

Coming Soon

This manual provides detailed instructions for servicing and repairing the HVAC system, including diagrams, part numbers, and troubleshooting steps.

Technical Service Bulletin: HVAC System Updates

Coming Soon

This bulletin outlines software updates and common issues for the HVAC system in 2009-2012 Volkswagen Golf models, along with recommended fixes.

Volkswagen Golf HVAC Parts Catalog

Coming Soon

A comprehensive catalog of OEM and aftermarket HVAC parts for 2009-2012 Volkswagen Golf models, including filters, compressors, and blower motors.

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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