Audi Audi A6 1997-2004 HVAC Specifications
Detailed HVAC specifications for the 1997-2004 Audi A6, including heating, air conditioning, and ventilation system components. Ideal for maintenance, repair, and upgrades.
1997-2004 Audi A6 HVAC Specifications Overview Specifications
This document provides a comprehensive overview of the HVAC (Heating, Ventilation, and Air Conditioning) specifications for the 1997-2004 Audi A6. It includes detailed technical information, system components, and operational parameters. Use this guide to understand the HVAC system's capabilities, troubleshooting, and maintenance requirements. Navigate through the sections to find specific information or use the quick reference for key specifications.
How to Use
To find specific information, use the search functionality by typing keywords such as 'compressor,' 'heater core,' or 'ventilation.'
Navigate through the sections by selecting major categories like 'Heating System' or 'Cooling System.' Each section contains subsections with detailed technical points. Use the quick reference section for fast access to key specifications.
Key Specifications
Heating Capacity
35kW
Cooling Capacity
35kW
Refrigerant Type
R-134a
Compressor Type
Sanden SD7H15
Airflow Rate
300 liters/second
Available Specifications
Heating System
The heating system in the 1997-2004 Audi A6 is designed to provide optimal cabin comfort during cold weather conditions. It includes components such as the heater core, hoses, and control valves. This section details the technical specifications and operational parameters of the heating system.
Heating System
The heating system in the 1997-2004 Audi A6 is designed to provide optimal cabin comfort during cold weather conditions. It includes components such as the heater core, hoses, and control valves. This section details the technical specifications and operational parameters of the heating system.
Heater Core and Components
- Heater core dimensions: 12x6 inches
- Heater core coolant capacity: 1.5 liters
- Heater hoses diameter: 16mm
- Heater control valve type: Wax-based
- Heater core operating temperature: Up to 105°C
- Heater core pressure rating: 1.5 bar
Heating System Operation
- Water pump flow rate: 50 liters per minute
- Heater valve actuation: Electric
- Temperature blend range: -10°C to 35°C
- Heater fan speeds: 4 settings
- Heater core bypass valve: Automatic
- Coolant mixture recommendation: 50/50 glycol and water
Cooling System
The cooling system in the 1997-2004 Audi A6 is responsible for maintaining optimal engine temperature. This section provides detailed specifications for the radiator, cooling fans, hoses, and coolant.
Cooling System
The cooling system in the 1997-2004 Audi A6 is responsible for maintaining optimal engine temperature. This section provides detailed specifications for the radiator, cooling fans, hoses, and coolant.
Radiator and Cooling Components
- Radiator dimensions: 34x24x2 inches
- Radiator coolant capacity: 8 liters
- Cooling fan diameter: 11 inches
- Coolant hoses diameter: 20mm
- Thermostat opening temperature: 88°C
- Cooling system pressure rating: 1.2 bar
Cooling System Performance
- Cooling capacity: 35kW
- Fan operation: Dual-speed
- Coolant flow rate: 100 liters per minute
- Temperature reduction: Up to 30°C
- Recommended coolant: G12
- Overflow reservoir capacity: 1 liter
Air Conditioning System
The air conditioning system in the 1997-2004 Audi A6 provides cabin cooling and dehumidification. This section details the components and specifications of the AC system.
Air Conditioning System
The air conditioning system in the 1997-2004 Audi A6 provides cabin cooling and dehumidification. This section details the components and specifications of the AC system.
Compressor and Condenser
- Compressor type: Sanden SD7H15
- Compressor displacement: 135cc
- Condenser dimensions: 34x24x2 inches
- Condenser coolant flow: 500 liters per hour
- Compressor clutch engagement: Electric
- Compressor oil capacity: 150ml
Evaporator and Refrigerant
- Evaporator dimensions: 10x8x2 inches
- Refrigerant type: R-134a
- Refrigerant capacity: 600g
- Evaporator fan speed: 4 settings
- Refrigerant pressure range: 0.8 to 2.5 bar
- Evaporator drain tube diameter: 10mm
Controls and Electrical
The HVAC system in the 1997-2004 Audi A6 is controlled by a combination of electrical and mechanical components. This section details the specifications for the control unit, sensors, and actuators.
Controls and Electrical
The HVAC system in the 1997-2004 Audi A6 is controlled by a combination of electrical and mechanical components. This section details the specifications for the control unit, sensors, and actuators.
Climate Control Unit
- Climate control unit type: Analog
- Temperature sensor accuracy: ±1°C
- Humidity sensor range: 0-100%
- Air quality sensor type: Basic particulate
- Control unit power consumption: 5A
- Display type: LCD
Actuators and Sensors
- Blend door actuator type: Electric
- Airflow control motor type: DC
- Temperature sensor type: NTC
- Pressure sensor range: 0-3 bar
- Airflow sensor type: Hot wire
- Heater valve actuator type: Electric
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Component Specifications
Overview
- Type
- Climate Control System
- Configuration
- Dual-Zone Automatic Climate Control
- Platform
- Audi A6 C4/C5
- Material
- Plastic, Aluminum, and Copper
- Location
- Under Dashboard, Engine Compartment
- Manufacturer
- Valeo
Dimensions
- Hvac Module Length
- 12.0 in (304.8 mm)
- Hvac Module Width
- 8.5 in (215.9 mm)
- Hvac Module Height
- 6.0 in (152.4 mm)
- Evaporator Core Length
- 10.0 in (254.0 mm)
- Evaporator Core Width
- 6.0 in (152.4 mm)
- Evaporator Core Height
- 4.0 in (101.6 mm)
- Condenser Core Length
- 24.0 in (609.6 mm)
- Condenser Core Width
- 12.0 in (304.8 mm)
- Condenser Core Height
- 2.0 in (50.8 mm)
Materials
- Hvac Housing
- High-Density Polypropylene
- Evaporator Coil
- Aluminum Tubes with Aluminum Fins
- Condenser Coil
- Aluminum Tubes with Aluminum Fins
- Heater Core
- Copper Tubes with Aluminum Fins
- Ducting System
- Flexible Rubber and Rigid Plastic
Features
- Air Distribution Modes
-
- Face vents
- Floor vents
- Defrost vents
- Recirculation mode
- Temperature Control
-
- Dual-zone temperature adjustment
- Automatic temperature control
- Heated air option
- Cooled air option
- Climate Control
-
- Humidity sensor
- Air quality sensor
- Automatic recirculation
- Pollendar
- Air Quality Features
-
- Activated carbon filter
- Dust and pollen filter
- Odor neutralization
- Fresh air mode
- Heating Features
-
- Rear seat heating ducts
- Heated windshield option
- Rapid heat function
- Circulation control
Safety Features
- System Protection
-
- Overpressure relief valve
- Low refrigerant pressure sensor
- High refrigerant pressure sensor
- Thermal overload protection
- Fire Resistance
- Components meet ISO 3795 standard
- Electrical Protection
-
- Circuit breaker protection
- Overcurrent protection
- Short-circuit protection
Comfort Features
- Automated Climate Control
-
- Ambient temperature sensor
- Sunlight sensor
- Humidity sensor
- Air quality sensor
- Air Distribution
-
- Electronic control of air distribution
- Adjustable air flow control
- Variable blower speed
- Silent operation mode
- Filtration
-
- Cabin air filter
- Activated carbon filter
- Dust and pollen filter
- Filter replacement indicator
- Defogging
-
- Automatic defrost mode
- Heated windshield option
- Rear window defogger
- Side window defogger
Accessories
- Cabin Air Filter
-
- Genuine Audi A6 C4/C5 cabin air filter
- Aftermarket compatible filters
- Activated carbon filter upgrade
- Anti-allergen filter option
- Condenser Fan
-
- Genuine Audi condenser fan assembly
- Aftermarket compatible fan motors
- Dual fan configuration
- High-performance fan upgrade
- Control Modules
-
- Climate control module
- Temperature sensor kit
- Blower motor resistor
- A/C control switch
Maintenance
- Service interval
- Every 12,000 miles or 12 months
- Service Items
-
- Replace cabin air filter
- Inspect and clean condenser
- Check refrigerant level
- Inspect hoses and connections
- Test blower motor operation
- Check heater core for leaks
- Maintenance Notes
- Ensure proper refrigerant levels, inspect for leaks, and replace filters as needed to maintain optimal performance.
Warranty
- Basic Warranty
- Miles: 50000Years: 4Coverage: Parts and labor
- Extended Warranty
- Miles: 100000Years: 7Coverage: Parts and labor
- Powertrain Warranty
- Miles: 70000Years: 5Coverage: Parts and labor
- Corrosion Warranty
- Miles: 100000Years: 10Coverage: Perforation repair
Production Details
- Manufacturer info
- Produced by Audi AG, Ingolstadt, Germany
- Manufacturing Process
-
- Robotic assembly
- Laser welding
- Pressure testing
- Quality inspection
- Quality Control
- Tests: Leak testing, Performance testing, Environmental testing, Durability testingStandards: ISO 9001:2015 certified
- Sustainability Practices
-
- Recyclable materials
- Energy-efficient production
- Reduced emissions
- Waste reduction programs
- Production Metrics
- Units Per Year: 50000Production Cycle: 12 hours per unitDefect Rate: <1%Efficiency: 95%
Service Information for HVAC Service
Maintenance and service requirements specific to this component
- Replace cabin air filter
- Inspect and clean condenser
- Check refrigerant level
- Inspect hoses and connections
- Test blower motor operation
- Check heater core for leaks
Ensure proper refrigerant levels and inspect for leaks.
- Clean evaporator drain
- Inspect fan motor operation
- Check temperature sensor accuracy
- Test automatic climate control functions
- Inspect air ducts for damage or leaks
- Replace pollen filter if equipped
Special attention to drainage system and sensor calibration.
- Replace condenser fan if necessary
- Inspect and clean condenser coils
- Replace heater core if leaking
- Inspect and replace worn or damaged hoses
- Test system performance under load
- Check for refrigerant leaks
Critical to inspect and replace worn components to prevent system failure.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the HVAC system in the 1997-2004 Audi A6?
What are the technical specifications of the HVAC system in the 1997-2004 Audi A6?
The HVAC system in the 1997-2004 Audi A6 features a dual-zone automatic climate control with a refrigerant capacity of 600g R-134a. It includes a rotary compressor, condenser, evaporator, and heater core. The system is compatible with aftermarket parts such as the Valeo 94542021 compressor and Behr 0001210040 condenser. Ensure compatibility with your specific model year and trim level before installation.
Q2 What are the maintenance requirements for the HVAC system?
What are the maintenance requirements for the HVAC system?
Regular maintenance includes checking refrigerant levels every 12,000 miles, replacing the cabin air filter every 15,000 miles, and inspecting the condenser and evaporator for debris. Lubricate the compressor clutch annually and ensure proper coolant levels. Refer to the service manual for detailed schedules and procedures.
Q3 How do I replace the HVAC blower motor?
How do I replace the HVAC blower motor?
To replace the blower motor, start by disconnecting the battery. Remove the glove box and trim panels to access the blower motor housing. Disconnect the electrical connector and mounting screws. Remove the old motor and install the new one, ensuring proper alignment. Reconnect the electrical connector and reassemble the trim panels. Test the system for proper operation.
Q4 Why is my HVAC system not cooling properly?
Why is my HVAC system not cooling properly?
Check for low refrigerant levels, blockages in the condenser or evaporator, or a faulty cooling fan. Inspect the compressor clutch for proper engagement and ensure the expansion valve is functioning. If issues persist, consult a professional to check for leaks or internal component failures.
Q5 How can I optimize the performance of my HVAC system?
How can I optimize the performance of my HVAC system?
Ensure proper airflow by cleaning or replacing the cabin air filter. Park your vehicle in the shade and use a sunshade to reduce heat load. Check for any air leaks in the ductwork and ensure all vents are clean. Regularly service the system to maintain optimal performance and efficiency.
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 A6 HVAC Service Manual
Coming SoonComprehensive guide covering installation, maintenance, and repair procedures for the HVAC system in 1997-2004 Audi A6 models.
Technical Bulletin: HVAC Compressor Update
Coming SoonDetails updates and improvements for the HVAC compressor system in 1997-2004 Audi A6 models.
Audi A6 Parts Catalog
Coming SoonDetailed catalog of OEM and aftermarket parts for the HVAC system in 1997-2004 Audi A6 models.
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Technical Information
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