AUDI 2015 A3 Premium, 4D Sedan

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Repair and Diagnosis

Quick Lookups
- Common Specs & Procedures
- DTC Index
- Electrical Component Locations
- Fluids
- Technical Bulletins
- Tire Fitment
- Wiring Diagrams
Accessories & Equipment
- Anti-Theft Systems
- Body Interior
- Collision/Avoidance
- Cruise Control Systems
- Drivers Assistance Systems - ADAS
- Entertainment Systems
- Exterior Lights
- Gauges & Instrument Panels
- Infotainment
- Interior/Exterior Trim
- Interior/Illumination Lights
- Mirrors
- Seats
- Warning Systems
- Window Motors & Regulators
- Wiper/Washer Systems
- Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)
Body & Frame
- Body, Cab Control Systems
- Door Locks
- Exterior Body Panels
- Exterior/Interior Trim
- Mirrors
- Seats
- Sun Roof/T-Top/Convertible Top
- Windows
Brakes
- Anti-Lock Brakes
- Brakes Control Systems
- Mechanical - Hydraulic
- Parking Brake System
- Traction Control
Drivelines & Axles
- Axle Shafts
- Differentials & Drive Axles
- Driveshaft & Universal Joints
Electrical
- Body Electrical
- Charging Systems
- Component Locations
- Fuses & Circuit Breakers
- Gauges
- Motors, Switches, Relays
- Starter
- Wiring Diagrams
Engine Mechanical
- Blowers, Superchargers & Turbochargers
- Cooling Fan
- Cooling System (Mechanical)
- Exhaust
- Fuel System
- Lubrication System
- Mechanical
- Starter
Engine Performance
- Emissions
- Engine Control Systems
- Fuel Delivery
- Ignition System
- Remove, Overhaul & Install
- Specifications
- System
- Testing & Diagnosis
- Tune-Up
General Information
- Abbreviations
- Basic Trouble Shooting
- Brakes
- Check Lists
- Driveline/Axles
- DTC Index
- Electrical
- Engine
- Engine Performance
- Map - Exhaust Systems
- Heating, Ventilation & A/C (HVAC)
- Identification
- Metric Conversions
- OEM General Information
- Reset Procedures
- Specifications Index
- Steering
- Towing
- Traction Control Disable Procedures
- Trouble Shooting - Manual Transmission - General Information
Heating, Ventilation & A/C (HVAC)
- A/C Compressor
- General Servicing
- HVAC Control Systems
  - Air Conditioning (Front Heater & A/C Unit)
  - Air Conditioning (Front Heater & A/C Unit) -- (Sedan)
  - Air Conditioning (Overview)
  - Air Conditioning (Overview) -- (Sedan)
  - AIR CONDITIONING R1234yf (A/C SERVICE STATION) -- (SEDAN)
  - AIR CONDITIONING R1234yf (REFRIGERANT CIRCUIT) -- (SEDAN)
  - AIR CONDITIONING R1234yf (TOOLS & TESTING EQUIPMENT) -- (SEDAN)
  - AIR CONDITIONING R134a (GENERAL INFORMATION) -- (SEDAN)
  - AIR CONDITIONING R134a (REFRIGERANT CAPACITIES) -- (SEDAN)
  - AIR CONDITIONING R134a (REFRIGERANT CIRCUIT COMPONENTS) -- (SEDAN)
  - AIR CONDITIONING R134a (REFRIGERANT CIRCUIT) -- (SEDAN)
  - AIR CONDITIONING R134a (WARNINGS) -- (SEDAN)
  - Air Conditioning Refrigerant R1234YF Servicing (Refrigerant Circuit)
  - Air Conditioning Refrigerant R1234YF Servicing (Tools & Testing Equipment)
  - Air Conditioning Refrigerant R134A Servicing (General Information)
    - 87 Air Conditioning
      - Safety Precautions
      - A/C System, General Information
        Introduction
        Additional Information Sources
        A/C Technology Basic Principles
        Refrigerant R134A
        Refrigerant R134A Characteristics
        Commercial Names And Designations
        Color
        Vapor Pressure
        R134A Physical Characteristics
        Affect On Metal
        Critical Temperature/Pressure
        Refrigerant Oil
        A/C System Operation
        General Safety Precautions
        Product Characteristics
        Handling Refrigerant
        Handling Pressure Containers
        Refrigerant Circuit, General Precautions
        After Charging A/C System
      - Refrigerant Circuit General Information
      - Laws And Regulations
      - Refrigerant Circuit
  - Air Conditioning Refrigerant R134A Servicing (Refrigerant Circuit Components)
  - Air Conditioning Refrigerant R134A Servicing (Refrigerant Circuit)
  - General, Technical Data (HVAC) -- (A3 Sedan)
  - GENERAL, TECHNICAL DATA (R1234yf) -- (A3 SEDAN)
  - General, Technical Data Heating, Ventilation And Air Conditioning
  - General, Technical Data Refrigerant R1234YF Servicing
  - Heating, Ventilation
  - Heating, Ventilation -- (Sedan)
Maintenance
- Procedures
- Schedule
Restraints
- Air Bag, SRS
- Passive Restraints
- Restraints Control Systems
- Seat Belts
Steering
- Manual Steering
- Power Steering
- Steering Column
- Steering Gear
- Steering Linkage
Suspension
- Electronic Suspension
- Front Suspension
- Rear Suspension
- Wheel Alignment
- Wheels & Tire System
Transmission
- Automatic Trans
- Clutch
- Manual Trans
- Transmission Control Systems
External Pages

Manual:AUDI A3 Premium, 4D Sedan 2015Page:33354 / 92758

Vapor Pressure — 2015 Audi A3 Premium, 4D Sedan Service Manual

Vapor Pressure

In a partially filled, closed container, the quantity of refrigerant evaporating from the surface equals the quantity returning to the liquid state as vapor particles condense. This state of equilibrium occurs under the influence of pressure and is often called vapor pressure. The vapor pressure is dependent on the temperature. Refer to REFRIGERANT R134A VAPOR PRESSURE TABLE "vapor pressure table".