Audi Audi A3 2013-2020 HVAC Specifications
Audi Audi A3 2013-2020

Audi Audi A3 2013-2020 HVAC Specifications

Detailed technical specifications and operational guide for the HVAC system in the 2013-2020 Audi A3. Learn about system components, refrigerant types, control mechanisms, and diagnostic procedures.

Updated

Audi A3 HVAC Specifications Overview (2013-2020) Specifications

This document provides a comprehensive overview of the heating, ventilation, and air conditioning (HVAC) specifications for the 2013-2020 Audi A3 models. It includes detailed technical information, system components, and operational guidelines. Use this guide to understand the HVAC system's capabilities, performance metrics, and maintenance requirements. Navigate through the sections to find specific details or refer to the quick reference section for key specifications.

How to Use

To find specific information, use the search functionality by typing keywords related to HVAC components, such as 'compressor,' 'heater core,' or 'airflow.'

Navigate through the document by selecting sections from the table of contents. Each section contains subsections with detailed technical points. Use the quick reference section for at-a-glance key specifications.

Key Specifications

Heating Output

5.5 kW

Cooling Capacity

10 kW

Airflow Rate

Up to 300 m3/h

Refrigerant Type

R-1234yf

Cabin Air Filter Efficiency

99.97% at 0.3 μm

Available Specifications

Heating System

The heating system in the Audi A3 is designed to provide optimal cabin comfort during cold weather conditions. It includes a heater core, electric fans, and temperature control mechanisms. This section details the technical specifications and operational parameters of the heating system.

Heater Core and Components
  • Heater core dimensions: 240mm x 120mm x 40mm
  • Maximum heating output: 5.5 kW
  • Water valve control for temperature regulation
  • Electric fan operation with variable speed control
  • Heater core coolant flow rate: 2.5 L/min
  • Temperature range: -20°C to 35°C
Heating Controls
  • Automatic temperature control (ATC) system
  • Dual-zone climate control available on higher trims
  • Cabin temperature sensor for feedback control
  • Heater actuator response time: <5 seconds
  • Integration with air conditioning system

Air Conditioning System

The air conditioning system in the Audi A3 is designed to maintain cabin comfort during hot weather. It features a refrigerant-based cooling system with advanced controls and efficiency. This section provides detailed specifications and operational parameters.

Compressor and Condenser
  • Compressor type: Variable displacement piston-type
  • Condenser dimensions: 700mm x 400mm x 20mm
  • Refrigerant type: R-1234yf
  • Compressor operating pressure: 1.2 MPa to 2.0 MPa
  • Condenser fan operation with variable speed control
Evaporator and Controls
  • Evaporator dimensions: 300mm x 200mm x 50mm
  • Evaporator core coolant flow rate: 1.8 L/min
  • Expansion valve type: Electronic expansion valve
  • Airflow rate: Up to 300 m3/h
  • Cooling capacity: 10 kW

Ventilation and Airflow

The ventilation system in the Audi A3 ensures proper cabin air circulation and quality. It includes air filters, ducting, and fan systems. This section details the specifications and performance of the ventilation system.

Air Filters and Ducting
  • Cabin air filter dimensions: 240mm x 150mm x 30mm
  • Air filter efficiency: 99.97% at 0.3 μm
  • Ducting material: High-density polyethylene
  • Ducting diameter: 50mm to 100mm
  • Airflow restriction: <50 Pa at maximum flow
Fan and Blower Motor
  • Blower motor speed: 5 selectable speeds
  • Fan motor power: 120 W
  • Airflow rate: Up to 300 m3/h
  • Noise level: <40 dBA at maximum speed
  • Fan motor control: PWM (Pulse Width Modulation)

Climate Control and Automation

The climate control system in the Audi A3 integrates heating, ventilation, and air conditioning functions. It features advanced automation and sensors for optimal cabin comfort. This section details the technical specifications and operational parameters.

Sensors and Automation
  • Cabin temperature sensor accuracy: ±0.5°C
  • Ambient temperature sensor range: -40°C to 85°C
  • Humidity sensor range: 0% to 100% RH
  • Sunlight sensor for solar load compensation
  • Automatic recirculation control
System Controls
  • Dual-zone climate control (available on higher trims)
  • Automatic defrost function
  • Air quality sensor for automatic recirculation
  • Control panel interface: 7-inch MMI touchscreen
  • Voice command integration (on equipped models)

Maintenance and Service

Regular maintenance is essential to ensure optimal performance of the HVAC system. This section provides guidelines for servicing and maintaining the heating, ventilation, and air conditioning systems.

Service Intervals
  • Cabin air filter replacement: Every 15,000 miles
  • Engine air filter replacement: Every 30,000 miles
  • Coolant flush interval: Every 60,000 miles
  • Refrigerant recharge interval: Every 6 years or as needed
  • Compressor oil replacement: Every 90,000 miles
Diagnostic and Repair
  • System diagnostics via OBD-II port
  • Refrigerant leak detection methods
  • Heater core flush procedure
  • Blower motor resistor replacement
  • Climate control module software updates

Component Specifications

Overview

Type
Automatic Climate Control
Configuration
Dual-Zone Climate Control
Platform
Volkswagen Group MQB
Material
High-Density Polyethylene (HDPE)
Location
Dashboard and Rear Compartment

Dimensions

Unit Length
17.3 in (440 mm)
Unit Width
11.4 in (290 mm)
Unit Height
6.7 in (170 mm)
Duct Length
Up to 118.1 in (3000 mm)
Evaporator Size
13.4 x 8.7 in (340 x 220 mm)
Blower Motor Diameter
4.7 in (120 mm)
Compressor Displacement
8.5 cu in (140 cm3)
Condenser Size
29.9 x 15.7 in (760 x 400 mm)
Refrigerant Capacity
2.2 lbs (1.0 kg)

Materials

Housing
High-Density Polyethylene (HDPE) with UV Stabilizers
Evaporator Core
Aluminum with Anti-Corrosion Coating
Condenser Core
Aluminum with Hydrophilic Fins
Ducting
Polyurethane Foam Insulation with Glass Fiber
Tubing
Aluminum with Inner Rubber Hose

Features

Air Distribution Modes
  • Manual Mode
  • Automatic Mode
  • Eco Mode
  • Defrost Mode
Temperature Control
  • Dual-Zone Temperature Control
  • Electronic Temperature Regulation
  • Ambient Temperature Sensor
  • Sun Sensor for Load Compensation
Air Quality Management
  • Pollen Filter
  • Automatic Recirculation
  • Odor Filter
  • Air Quality Sensor
Climate Control
  • Heating
  • Cooling
  • Ventilation
  • Defrost
Noise Reduction
  • Silent Blower Operation
  • Noise-Reducing Duct Insulation
  • Low-Vibration Compressor
Automation Features
  • Smart Climate Control
  • Remote Start Integration
  • Temperature Preconditioning
  • Heated Seat Integration
Defogging System
  • Front Windshield Defrost
  • Rear Window Defrost
  • Side Window Demisting

Safety Features

Overheat Protection
  • Temperature Monitoring
  • Coolant Flow Regulation
  • Emergency Shutdown
Pressure Relief
  • Overpressure Safety Valve
  • Pressure Sensor Monitoring
Electrical Protection
  • Circuit Breaker
  • Overcurrent Protection
  • Voltage Regulation
Refrigerant Safety
  • Leak Detection
  • Low-Refrigerant Warning
  • Automatic Shut-Off

Comfort Features

Air Quality Sensors
  • Particulate Matter Sensor
  • Odor Sensor
  • Humidity Sensor
Seat integration
  • Heated Seats
  • Ventilated Seats
  • Massage Function
Climate Control
  • Dual-Zone Control
  • Electronic Temperature Regulation
  • Sun Load Compensation
Noise Reduction
  • Silent Operation
  • Vibration Dampening
  • Insulated Ducting
User Customization
  • Memory Settings
  • Smartphone App Control
  • Voice Command Integration

Accessories

installation Kits
  • Mounting Brackets
  • Ducting Adapters
  • Electrical Connectors
Maintenance Kits
  • Air Filter Kit
  • Cabin Filter Replacement
  • Refrigerant Recharge Kit
Upgrade Options
  • Advanced Air Purification System
  • Remote Start System
  • Heated Windshield Upgrade

Maintenance

Service interval
Every 12,000 miles (20,000 km) or 12 months
Items
  • Inspect and Replace Cabin Air Filter
  • Check Refrigerant Level
  • Inspect Ducts for Leaks
  • Clean Condenser Fins
  • Check Blower Motor Function
  • Verify Temperature Sensor Accuracy
Notes
  • Use OEM-approved refrigerant R-134a
  • Inspect electrical connections for corrosion
  • Check for any abnormal noises during operation

Warranty

Basic
Miles: 48,000 miles
Years: 4 years
Coverage: Parts and Labor
Powertrain
Miles: 50,000 miles
Years: 5 years
Coverage: HVAC Components Only
Corrosion
Miles: 12 years
Years: Unlimited
Coverage: Perforation Only
Emissions
Miles: 80,000 miles
Years: 8 years
Coverage: Emissions-Related Components

Production Details

Manufacturer
Volkswagen Group
Manufacturing Process
  • CNC Machining
  • Robotic Welding
  • Laser Cutting
  • Automated Assembly
Quality Control
inspection: End-of-Line Testing
Certifications: ISO 9001, IATF 16949, ISO 14001
Testing: Leak Testing, Performance Testing, Environmental Testing
Sustainability
  • Recyclable Materials
  • Energy-Efficient Production
  • Reduced Emissions Manufacturing
Production Metrics
Units Per Year: Over 500,000 units
Plants: Ingolstadt, Germany, Győr, Hungary, Shanghai, China

Service Information for HVAC Service

Maintenance and service requirements specific to this component

12,000 miles
12 months
  • Inspect and Replace Cabin Air Filter
  • Check Refrigerant Level
  • Inspect Ducts for Leaks
  • Clean Condenser Fins
  • Check Blower Motor Function
  • Verify Temperature Sensor Accuracy

Use OEM-approved refrigerant R-134a

24,000 miles
24 months
  • Inspect Electrical Connections
  • Check for Refrigerant Leaks
  • Test Blower Motor Speed
  • Verify Heater Core Function
  • Inspect Compressor Belt Tension
  • Check System Performance

Inspect electrical connections for corrosion

36,000 miles
36 months
  • Replace Refrigerant
  • Check and Top Off Lubricant
  • Inspect Condenser Coils
  • Clean or Replace Blower Motor Filter
  • Check Temperature Control Valve
  • Verify Defrost Function

Check for any abnormal noises during operation

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the refrigerant type and capacity for the 2013-2020 Audi A3 HVAC system?

The HVAC system in the 2013-2020 Audi A3 uses R-134a refrigerant. The total system capacity is approximately 525 grams (18.5 ounces). Always refer to the vehicle's service manual for exact specifications, as variations may exist between trims and model years.

Q2

How do I reset the HVAC system after replacing the cabin air filter?

To reset the HVAC system after replacing the cabin air filter, turn the ignition to the 'ON' position without starting the engine. Press and hold the 'ECON' and 'AUTO' buttons simultaneously for 5 seconds until the display confirms the reset. This ensures proper airflow and system calibration.

Q3

What is the recommended interval for HVAC system maintenance?

Audi recommends inspecting the HVAC system every 20,000 miles or 24 months, whichever comes first. This includes checking refrigerant levels, inspecting the compressor, and replacing the cabin air filter. Regular maintenance ensures optimal performance and prevents system failures.

Q4

How does the dual-zone climate control system work in the Audi A3?

The dual-zone climate control system allows the driver and front passenger to set individual temperature preferences. The system uses separate sensors and actuators to regulate airflow and temperature for each zone, ensuring personalized comfort. The temperature range is adjustable from 60°F to 84°F (16°C to 29°C).

Q5

What are the common symptoms of a failing HVAC blower motor?

Common symptoms include unusual noises (whining or grinding), reduced airflow, or complete failure of the blower motor. If the blower motor fails, it may also trigger a fault code in the vehicle's diagnostic system. Replacement requires removing the glove box and accessing the motor housing.

Factory Service Resources

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

Audi A3 HVAC System Service Manual

Coming Soon

Official service manual for the 2013-2020 Audi A3 HVAC system, including detailed repair procedures, specifications, and diagnostic codes.

Cabin Air Filter Replacement Guide

Coming Soon

Step-by-step guide for replacing the cabin air filter in the 2013-2020 Audi A3, including tools required and reset procedures.

Refrigerant Charging Instructions

Coming Soon

Detailed instructions for safely charging the HVAC system with R-134a refrigerant, including pressure specifications and safety precautions.

Dual-Zone Climate Control Troubleshooting

Coming Soon

Troubleshooting guide for common issues with the dual-zone climate control system, including error codes and calibration procedures.

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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