Audi Audi Q7 2015-present

Audi Audi Q7 2015-present HVAC Specifications

Detailed technical specifications for the HVAC system in the 2015-Present Audi Q7, including system components, performance metrics, and troubleshooting guidelines.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the HVAC specifications for the 2015-Present Audi Q7, including key features, measurements, and technical details. This section covers the heating, ventilation, and air conditioning system, focusing on its components, performance, and maintenance requirements.

How to Use

Use the search function to locate specific HVAC specifications by entering keywords such as 'blower motor', 'refrigerant capacity', or 'temperature control'. Use exact terms for precise results.

Navigate through the HVAC documentation sections using the table of contents. Each major section is divided into subsections for detailed technical information.

Key Specifications

Refrigerant Capacity

750 g (1.65 lbs)

Heating Capacity

6.5 kW (22,178 BTU/h)

Cooling Capacity

4.2 kW (14,330 BTU/h)

Airflow Capacity

12 m³/min (423.8 ft³/min)

Filter Replacement Interval

15,000 km (9,320 miles)

Available Specifications

Climate Control System

This section provides detailed information about the Audi Q7's advanced climate control system, including its components, functionality, and performance metrics.

Automatic Temperature Control

Dual-zone or optional four-zone automatic climate control system
Temperature range: 16°C to 30°C (60.8°F to 86°F)
Integrated humidity and air quality sensors
Automatic air recirculation mode for optimal air quality

Air Distribution System

Multi-level air vents with adjustable airflow direction
Rear-seat ventilation system with independent controls
Airflow capacity: up to 12 m³/min (423.8 ft³/min)
Dual blower motors for front and rear zones

Note: The rear-seat ventilation system is optional and only available in higher trims.

Heating and Cooling Components

This section covers the key components of the HVAC system, including the heater core, evaporator, and refrigerant system.

Heater Core

High-efficiency aluminum heater core
Heating capacity: 6.5 kW (22,178 BTU/h)
Integrated coolant flow control valve
Operates with engine coolant at 90°C (194°F)

Evaporator and Refrigerant System

R134a refrigerant capacity: 750 g (1.65 lbs)
Evaporator cooling capacity: 4.2 kW (14,330 BTU/h)
Refrigerant pressure sensor range: 0 to 35 bar (0 to 507.6 psi)
Expansion valve with precise temperature regulation

Note: Ensure proper refrigerant levels for optimal cooling performance.

Air Filtration and Quality

This section details the air filtration system and features designed to improve cabin air quality.

Cabin Air Filter

Dual-layer particulate and activated carbon filter
Filter replacement interval: 15,000 km (9,320 miles) or annually
Particle filtration efficiency: 99.7% for PM2.5
Activated carbon layer for odor and gas absorption

Ionizer and Air Quality Sensor

Optional ionizer for air purification
Air quality sensor detects CO2 and NOx levels
Automatic air recirculation based on sensor input
Ionizer coverage: up to 8 m² (86.1 ft²)

Note: The ionizer is only available in select trims.

Maintenance and Diagnostics

This section provides guidelines for maintaining the HVAC system and troubleshooting common issues.

System Diagnostics

Integrated OBD-II diagnostics for HVAC system
Fault codes specific to blower motor, sensors, and actuators
Diagnostic tool compatibility: Audi VAS 5054 or equivalent
Self-diagnosis mode accessible via MMI interface

Maintenance Requirements

Refrigerant recharge interval: 2 years or as needed
Blower motor inspection every 30,000 km (18,640 miles)
Evaporator cleaning recommended every 60,000 km (37,280 miles)
Cabin air filter replacement every 15,000 km (9,320 miles)

Note: Use only Audi-approved refrigerant and components for maintenance.

Search Specifications

Search by specification name, value, or description

Component Specifications

General Specifications

System Type: Automatic Dual-Zone Climate Control

Refrigerant Type: R-1234yf

Refrigerant Capacity: 500 ± 20 g

Compressor Type: Variable Displacement

Blower Motor Type: Electronically Controlled

Temperature Control

Temperature Range: 16°C to 30°C

Temperature Resolution: 0.5°C

Temperature Sensor Accuracy: ±1°C

Auto Mode Response Time: 5-10 minutes

Airflow Specifications

Blower Motor Power: 200 W

Max Airflow Rate: 1200 m³/h

Airflow Direction Control

Face
Foot
Defrost
Auto

Air Quality Sensor: Integrated PM2.5 and VOC Sensor

Heating System

Heater Core Type: Aluminum

Heater Core Capacity: 5.5 kW

Auxiliary Heater: PTC Heater

Auxiliary Heater Power: 1.5 kW

Cooling System

Evaporator Type: Plate-Fin

Evaporator Capacity: 4.2 kW

Condenser Type: Parallel Flow

Condenser Capacity: 6.0 kW

Filters

Cabin Air Filter Type: Combination Particle and Activated Carbon

Cabin Air Filter Part Number: 4M0819439

Filter Replacement interval: 15,000 miles or 12 months

Pollen Filter Efficiency: 99% at 0.3 microns

Electrical Specifications

System Voltage: 12 V DC

Compressor Power Consumption: 400 W

Blower Motor Current: 16.7 A

Control Module Part Number: 4M0907044

Diagnostic Specifications

Diagnostic interface: OBD-II

Fault Codes

B10A0
B10A1
B10A2

Self Diagnosis Capability: Yes

Diagnostic Tool Compatibility

VAS 5054
ODIS

Maintenance Specifications

Refrigerant Recharge interval: Every 2 years or 24,000 miles

System Pressure Check interval: Every 12 months

Lubricant Type: PAG Oil

Lubricant Quantity: 150 ± 10 ml

Safety Specifications

High Pressure Cutoff: 32 bar

Low Pressure Cutoff: 1.5 bar

Overheat Protection: Yes

Short Circuit Protection: Yes

Service Information Service

Detailed service requirements and schedules for the HVAC system

15,000 miles

12 months

Inspect and replace cabin air filter
Check refrigerant level
Inspect compressor and belts

Replace cabin air filter more frequently in dusty environments

30,000 miles

24 months

Recharge refrigerant
Inspect and clean evaporator and condenser
Check system for leaks

Use only R-1234yf refrigerant

60,000 miles

48 months

Replace blower motor if necessary
Inspect and replace PTC heater if necessary
Perform full system diagnostic

Ensure all electrical connections are secure

Frequently Asked Questions

Find answers to common questions about torque specifications

What is the refrigerant type and capacity for the 2015-Present Audi Q7 HVAC system?

The 2015-Present Audi Q7 HVAC system uses R-1234yf refrigerant. The total system capacity is approximately 525 grams (± 25 grams). Always refer to the vehicle's service manual for precise specifications.

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

To reset the HVAC system, navigate to the vehicle's MMI (Multi Media Interface) system. Go to 'Car' > 'Settings' > 'Service & Checks' > 'Cabin Air Filter' and follow the on-screen instructions to confirm the replacement. This ensures proper airflow and system calibration.

What is the recommended interval for servicing the HVAC system?

Audi recommends inspecting the HVAC system every 20,000 miles or 24 months, whichever comes first. This includes checking refrigerant levels, cleaning evaporator and condenser coils, and inspecting the blower motor and cabin air filter.

How does the 4-zone automatic climate control system work in the Audi Q7?

The 4-zone automatic climate control system allows independent temperature settings for the driver, front passenger, and rear passengers. It uses multiple sensors to monitor cabin temperature and adjusts airflow and temperature distribution accordingly. The system also includes a humidity sensor to prevent window fogging.

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

Common symptoms include reduced airflow, unusual noises (such as squeaking or grinding), and intermittent operation. If the blower motor fails, it may result in no airflow at all. 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 Q7 HVAC System Service Manual

Coming Soon

Official service manual for the 2015-Present Audi Q7 HVAC system, including detailed repair procedures and specifications.

Refrigerant Handling and Safety Guidelines

Coming Soon

Comprehensive guide on handling R-1234yf refrigerant, including safety precautions and proper disposal methods.

Cabin Air Filter Replacement Tutorial

Coming Soon

Step-by-step video tutorial for replacing the cabin air filter in the 2015-Present Audi Q7.

Diagnosing HVAC System Faults

Coming Soon

Technical guide for diagnosing common HVAC system issues, including error codes and troubleshooting steps.

About the Author

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