Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2007A3 BASE, AUTOMATIC DCTREPAIR AND DIAGNOSIS (SINGLE PAGE)HEATING, VENTILATION & A/C (HVAC)GENERAL SERVICINGGENERAL, TECHNICAL DATA - REFRIGERANT R134A SERVICING (1 OF 2)
2007 Audi A3 Base, Automatic DCT
General, Technical Data - Refrigerant R134A Servicing (1 Of 2)
2007 Audi A3 Base, Automatic DCTSECTION General, Technical Data - Refrigerant R134A Servicing (1 Of 2)
- General, Technical Data
- General Information
- A/C System And Refrigerant R134A, Safety Precautions
- A/C System
- Refrigerant R134A
- Refrigerant R134A Characteristics
- Refrigerant R134A Vapor Pressure Table
- Handling Refrigerant
- Refrigerant Oil
- Refrigerant Oil Characteristics
- Safety Precautions For Working With Extraction And Charging System
- Handling Pressure Vessels
- Service And Recycling Units
- Vehicles With A/C Compressor Without A/C Clutch, Only With A/C Compressor Regulator Valve
- Vehicles With High Voltage System
- Repairing A/C System
- Laws And Regulations
- A/C System Principles
- Refrigerant Circuit And Components
- Refrigerant Circuit Precautions
- Component Replacement
- Connections For Quick-Release Coupling On Refrigerant Circuit
- O-Ring Seals
- Quick-Release Connections On Refrigerant Lines
- Refrigerant Circuit Connections With Valve For Switches
- Refrigerant Circuit Pipes And Hoses
- Refrigerant Circuit Pressures And Temperatures
- Refrigerant Circuit, Converting R12 To R134A
- Refrigerant Circuit, Cleaning
- Refrigerant Circuit, Flushing
- Refrigerant Circuit Flushing With Compressed Air And Nitrogen
- Refrigerant Circuit Flushing With Refrigerant R134A
- Sequence Of Flushing Procedure (Sequence Occurs Automatically According To The A/C Service Station Program)
- Refrigerant Circuit, Repairing
- Switches And Sensors
- Electrically Driven A/C Compressor, Rinsing (Remove Refrigerant Oil)
- Hybrid Vehicle High Voltage System Procedures
- Performing A Visual Inspection Of Damage To High Voltage Components And Cables
- Start/Stop System Safety Precautions
- Description And Operation
- Refrigerant Circuit
- General Information
- A/C Compressor, Mechanically Driven
- A/C Compressor, Electrically Driven
- Adapter For Assembling Flushing Circuit
- Condenser
- Connections With SCHRADER Valve
- Connections With Primary Sealing Valve (Ball Valve)
- Evaporator
- Expansion Valve
- Expansion Valve With Hybrid Battery Refrigerant Shut-Off Valve 2 -N517-
- Hybrid Battery Refrigerant Shut-Off Valve 1 -N516-
- Fluid Reservoir
- Flushing Circuit Block Diagrams
- O-Ring Seals
- Pressure Relief Valve
- Refrigerant Circuit Components, High And Low Pressure Sides
- Refrigerant Circuit With Expansion Valve, Pressures And Temperatures
- Refrigerant Circuit With RESTRICTOR And Reservoir, Pressures And Temperatures
- Refrigerant Circuit With An Electrically Driven A/C Compressor (With And Without Battery Cooling Module)
- Refrigerant Pipe With Inner Heat EXCHANGER
- Reservoir
- RESTRICTOR
- Switches And Sensors On Refrigerant Circuit And Connections
- A/C Compressor Regulator Valve -N280-
- A/C Compressor Speed Sensor -G111-
- A/C Pressure Switch -F129-
- A/C Pressure/Temperature Sensor -G395-
- A/C Refrigerant High Pressure Switch -F23-
- A/C Refrigerant High Pressure Switch -F118-
- A/C Refrigerant Low Pressure Switch -F73-
- High Pressure Sensor -G65-, Refrigerant Circuit Pressure Sensor -G805-
- Refrigerant Temperature Sensor -G454-
- Electrical Components Not On Refrigerant Circuit
- A/C Service Station
- A/C System, Operating After Charging
- Using Service Station
- Charging Refrigerant Circuit
- Connecting For Measuring And Testing, Two Service Connections
- Connecting For Measuring And Testing, One Service Connection
- Connecting For Measuring And Testing, No Service Connection
- CONNECTING WITH Air Conditioning Adapter Set V.A.G 1786
- CONNECTING WITH Adapter Set VAG1785/10
- Draining Refrigerant Circuit
- Draining Service Station
- Evacuating Refrigerant Circuit
- Transferring Refrigerant To Reservoir (Charging Cylinder Or Reservoir Bottle) Of Service Station
- Refrigerant Circuit
- Specifications
- General Information
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.