Audi Audi S6 1994-1997 HVAC Specifications
Find detailed HVAC specifications for the 1994-1997 Audi S6, including climate control, air conditioning, and heating system details. Perfect for maintenance, repairs, and upgrades.
1994-1997 Audi S6 HVAC Specifications Overview Specifications
This document provides a detailed overview of the HVAC (Heating, Ventilation, and Air Conditioning) system specifications for the 1994-1997 Audi S6. It includes technical details, components, and operational parameters to assist with maintenance, repair, and upgrades. Use the sections below to navigate through the document and find specific information.
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Key HVAC Specifications
Heater Core Dimensions
11.5 x 6.5 inches
Refrigerant Type
R-12 (R-134a convertible)
Blower Motor Power
40W
Airflow Capacity
Up to 200 CFM
Heating Capacity
32°F to 90°F (-0°C to 32°C)
Available Specifications
Heating System
This section covers the specifications and components of the heating system in the 1994-1997 Audi S6, including the heater core, controls, and ducting.
Heating System
This section covers the specifications and components of the heating system in the 1994-1997 Audi S6, including the heater core, controls, and ducting.
Heater Core Specifications
- Heater core type: Tube-and-fin design
- Heater core dimensions: 11.5 x 6.5 inches
- Heater core fluid capacity: 2.5 liters
- Heater core inlet/outlet diameter: 1/2 inch
- Heater core pressure rating: Up to 15 psi
Heating Controls
- Control type: Mechanical cable-operated
- Temperature range: 32°F to 90°F (-0°C to 32°C)
- Blower motor speeds: 4-speed (including off)
- Heater valve operation: Vacuum-controlled
- Cabin air temperature sensor: Integrated into HVAC control module
Air Conditioning System
This section details the air conditioning system components, refrigerant specifications, and operational parameters for the 1994-1997 Audi S6.
Air Conditioning System
This section details the air conditioning system components, refrigerant specifications, and operational parameters for the 1994-1997 Audi S6.
Compressor and Condenser
- Compressor type: Sanden SD-7H15
- Compressor displacement: 120 cc
- Condenser type: Tube-and-fin with serpentine design
- Condenser dimensions: 27 x 12 inches
- Condenser fan operation: Dual-speed, thermally controlled
Evaporator and Refrigerant
- Evaporator type: Plate-and-fin design
- Evaporator dimensions: 11 x 7 inches
- Refrigerant type: R-12 (convertible to R-134a)
- Refrigerant capacity: 2.2 lbs (R-12)
- Expansion valve type: Orifice tube
- System operating pressure: 120-150 psi (R-12)
Ventilation System
This section covers the ventilation components, including ducting, air filters, and blower motor specifications.
Ventilation System
This section covers the ventilation components, including ducting, air filters, and blower motor specifications.
Blower Motor and Ducting
- Blower motor type: Single-speed, dual-speed, or variable-speed
- Blower motor power rating: 40W
- Ducting material: Flexible plastic and rigid ABS
- Ducting insulation: Foam-lined for noise reduction
- Airflow capacity: Up to 200 CFM
- Ventilation modes: Recirculation and fresh air
Air Filtration
- Air filter type: Paper-element with gasket seal
- Filter efficiency: 95% at 10 microns
- Filter dimensions: 12 x 7 x 2 inches
- Filter replacement interval: Every 15,000 miles
- Filter housing material: ABS plastic
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Component Specifications
Overview
- Type
- Automatic Climate Control System
- Configuration
- Rear-wheel drive (RWD)
- Platform
- Audi C4
- Refrigerant
- R-12
- Location
- Under hood and interior
Dimensions
- Compressor Length
- 11.8 in (300 mm)
- Compressor Width
- 6.3 in (160 mm)
- Compressor Height
- 6.7 in (170 mm)
- Condenser Length
- 33.9 in (860 mm)
- Condenser Width
- 11.8 in (300 mm)
- Condenser Height
- 1.4 in (35 mm)
- Evaporator Core Length
- 14.6 in (370 mm)
- Evaporator Core Width
- 8.7 in (220 mm)
Materials
- Compressor
- Aluminum alloy
- Condenser And Evaporator
- Aluminum with copper tubes
- Heater Core
- Copper/brass
- Ducts And Vents
- High-temperature plastic
Features
- Climate Control
-
- Automatic temperature control
- Dual-zone front climate control
- Rear cabin air conditioning (optional)
- Air quality sensor
- Recirculation and fresh air modes
- Air Distribution
-
- Defrost mode
- Floor and vent modes
- Rear seat heating ducts
- Adjustable air flow control
- Filtration
-
- Cabin air filter
- Particulate and odor filtration
- Activated charcoal filter
- Modes
-
- Economy mode
- Normal mode
- Max A/C mode
Safety Features
- Overpressure Protection
-
- High-pressure relief valve
- Low-pressure switch
- Overheating Protection
-
- Compressor thermal overload protection
- Heater core temperature limit
- Refrigerant Protection
-
- Refrigerant pressure monitoring
- Leak detection system
- Electrical Protection
-
- Circuit breaker protection
- Fan speed control with thermal monitoring
Comfort Features
- Temperature Control
-
- Dual-zone temperature adjustment
- Remote cabin preconditioning
- Timed heating/cooling operation
- Air Quality
-
- Air quality sensor
- Automatic recirculation
- Pollutant filtration
- Humidity Control
-
- Humidity sensor
- Automatic defogging
- Condensation control
- Noise Reduction
-
- Silent blower operation
- Noise-insulated compressor
- Vibration-dampened mounting
Accessories
- installation Kits
-
- Refrigerant recharge kit
- Cabin air filter replacement kit
- Climate control module update kit
- Maintenance Kits
-
- Compressor oil service kit
- Condenser cleaning kit
- Heater core flush kit
- Electronic Controls
-
- Climate control module
- Temperature sensor kit
- Blower motor resistor
Maintenance
- Service interval
-
- Cabin air filter replacement: every 15,000 miles
- Refrigerant check: every 3 years or 30,000 miles
- Compressor drive belt inspection: every 30,000 miles
- Condenser and evaporator cleaning: every 45,000 miles
- Heater core flush: every 60,000 miles
- Maintenance Notes
-
- Use only R-12 compatible refrigerant
- Check system for leaks annually
- Replace desiccant every 6 years
- Inspect electrical connections every 30,000 miles
Warranty
- Parts Warranty
- Miles: 50,000Years: 5Coverage: All HVAC components
- Labor Warranty
- Miles: 50,000Years: 5Coverage: Service labor for parts replacement
- Corrosion Warranty
- Miles: 100,000Years: 10Coverage: Compressor, condenser, and evaporator
- Refrigerant Warranty
- Miles: 50,000Years: 5Coverage: Refrigerant leaks and contamination
Production Details
- Manufacturer
- Audi AG
- Manufacturing Process
-
- Precision brazing of heat exchangers
- Computer-controlled testing of climate control modules
- Vacuum testing of refrigerant systems
- High-pressure testing of hydraulic lines
- Quality Control
- incoming Inspection: Components inspected: 100%, Defect Rate: <1%Final Inspection: System Test: Full functionality test, Leak Test: Helium leak detection, Performance Test: Temperature control accuracy
- Sustainability Practices
-
- Recyclable materials in components
- Energy-efficient manufacturing processes
- Emission-reducing production technologies
- Production Metrics
- Annual Production: 10,000 unitsProduction Cycle Time: 120 minutes per unitDefect Rate: <1%Warranty Claim Rate: <2%
Service Information for HVAC Service
Maintenance and service requirements specific to this component
- Inspect and replace cabin air filter
- Check refrigerant level and system for leaks
- Inspect compressor drive belt for wear
- Clean condenser and evaporator fins
- Test blower motor operation
Ensure proper system operation before seasonal temperature extremes
- Replace compressor drive belt
- Inspect and clean condenser and evaporator
- Check electrical connections and fuses
- Test temperature control operation
- Inspect heater core hoses for leaks
Special tools required for refrigerant system service
- Perform full system flush and refrigerant recharge
- Inspect and replace desiccant
- Test climate control module operation
- Inspect heater core for leaks or damage
- Replace blower motor resistor if necessary
Critical to follow proper refrigerant handling procedures
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the HVAC system in a 1994-1997 Audi S6?
What are the technical specifications of the HVAC system in a 1994-1997 Audi S6?
The 1994-1997 Audi S6 features a manual climate control HVAC system with rear ventilation. It is compatible with R-12 refrigerant, though conversion to R-134a is possible with appropriate modifications. The system includes a compressor, condenser, evaporator, and heating core. Compatibility with aftermarket parts may vary, so ensure components are specifically designed for this model range.
Q2 What are the recommended maintenance requirements for the HVAC system?
What are the recommended maintenance requirements for the HVAC system?
Regular maintenance includes checking refrigerant levels every 12,000 miles, inspecting hoses and belts for wear, and replacing the cabin air filter annually. Ensure proper ventilation by cleaning air vents and drains. If using R-134a, check system pressure with a manifold gauge. Address any leaks promptly to maintain efficiency and prevent damage.
Q3 How do I install or replace a component in the HVAC system?
How do I install or replace a component in the HVAC system?
Before starting, disconnect the battery and recover refrigerant if necessary. For components like the compressor or condenser, remove the serpentine belt and disconnect electrical connectors. Replace the part, ensuring all connections are secure. Recharge the system with the appropriate refrigerant and test for leaks. Consult a service manual for specific procedures.
Q4 How do I troubleshoot common HVAC issues?
How do I troubleshoot common HVAC issues?
If the HVAC is not cooling, check for refrigerant leaks, low levels, or a faulty compressor. For heating issues, inspect the heating core for blockages or leaks. Poor airflow may indicate a clogged air filter or faulty blower motor. Use a scan tool to check for fault codes in the climate control system. Always test system pressure with a manifold gauge.
Q5 How can I optimize the performance of the HVAC system?
How can I optimize the performance of the HVAC system?
Ensure proper ventilation by cleaning air vents and ensuring drainage. Use the recirculation mode to improve cooling efficiency. Check and top off refrigerant levels as needed. Insulate exposed lines to reduce heat loss. For better performance, consider upgrading to a high-performance condenser or modernizing the climate control unit with an aftermarket solution.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1994-1997 Audi S6 HVAC Service Manual
Coming SoonComprehensive guide detailing HVAC system diagnosis, maintenance, and repair procedures.
Audi Technical Bulletin: HVAC System Updates
Coming SoonOfficial updates and improvements for the HVAC system, including troubleshooting and repair procedures.
Audi S6 Parts Catalog: HVAC Components
Coming SoonDetailed listing of genuine and compatible parts for the HVAC system, including diagrams and part numbers.
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Technical Information
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