AUDI 2015 A3 Premium, 4D Sedan

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Repair and Diagnosis

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Engine Mechanical
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Heating, Ventilation & A/C (HVAC)
- A/C Compressor
- General Servicing
  - Air Conditioning (Front Heater & A/C Unit) -- (Sedan)
  - Air Conditioning (Overview) -- (Sedan)
  - General, Technical Data (HVAC) -- (A3 Sedan)
  - GENERAL, TECHNICAL DATA (R1234yf) -- (A3 SEDAN)
    - 00 General, Technical Data
      - Safety Precautions
      - Laws And Regulations
      - Repair Information
      - Identification
      - Technical Data
      - Technical And Physical Principles
        A/C Technology Basic Principles
        Pyrotechnical Characteristics
        Refrigerant R1234YF
        Refrigerant R1234YF Possible Dangers
        Refrigerant R1234YF Physical And Chemical Characteristics
        Critical Point
        Refrigerant R1234YF, Environmental Information
        Refrigerant R1234YF Trade Names And Designation
        Refrigerant R1234YF Color And Odor
        Refrigerant R1234YF Vapor Pressure
        Refrigerant R1234YF Pyrotechnical Characteristics
        Refrigerant R1234YF, Affect On Metal And Plastic
        Refrigerant R1234YF Critical Temperature/Pressure
        Refrigerant R1234YF Water Content
        Refrigerant R1234YF Combustibility/Decomposition
        Refrigerant R1234YF Charge Factor
        Refrigerant Circuit With Refrigerant R1234YF, Verifications And Leaks
        Refrigerant R1234YF Analysis
        Return Of Contaminated Refrigerant R1234YF For Analysis, Preparation Or Disposal
        Product Characteristics
        A/C System Functions And Tasks
        Additional Information Sources
  - General, Technical Data Heating, Ventilation And Air Conditioning
  - General, Technical Data Refrigerant R1234YF Servicing
- HVAC Control Systems
Maintenance
- Procedures
- Schedule
Restraints
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Steering
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Suspension
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Transmission
- Automatic Trans
- Clutch
- Manual Trans
- Transmission Control Systems
External Pages

Manual:AUDI A3 Premium, 4D Sedan 2015Page:32232 / 92758

Refrigerant R1234YF Pyrotechnical Characteristics — 2015 Audi A3 Premium, 4D Sedan Service Manual

Refrigerant R1234YF Pyrotechnical Characteristics

The vapor pressure curves of both refrigerant R1234yf and R134a are very similar across a large temperature range for this reason no differentiation of the two refrigerants is possible. Refer to REFRIGERANT VAPOR PRESSURE TABLE and A/C SYSTEM, GENERAL INFORMATION . Distinguishing is only possible by suitable sensors which can analyze the chemical characteristics of the refrigerant. Refer to REFRIGERANT R1234YF ANALYSIS .
With R1234yf, the A/C compressor is lubricated with special synthetic refrigerant oils, for example PAG oils (polyalkylene glycol oils) which are specified to the refrigerant R1234yf, the A/C compressor and the operating conditions of the specified additions (additives).