Climate Control System (General Information - 1 Of 2)

• 87 Air Conditioning
  • Refrigerant Circuit
    • System Overview - Refrigerant Circuit
      • System Overview - Refrigerant Circuit With Expansion Valve And Receiver/Dryer
      • System Overview - Refrigerant Circuit With Refrigerant Circuit And Reservoir
      • System Overview - Refrigerant Circuit With Electrically-Driven A/C Compressor (With Or Without Battery Cooling Module)
    • General Description - Refrigerant Circuit Components
      • Refrigerant Circuit Layout And Function
      • Mechanically Driven A/C Compressor
      • Electrically-Driven A/C Compressor For Hybrid Vehicles
        • Notes
        • Vehicles With A High-Voltage System (Hybrid Vehicles)
      • Condenser
      • Evaporator
        • Notes
        • Evaporator In The Heater And A/C Unit (Or In The Battery Cooling Module)
        • Evaporator/High-Voltage Battery Heat Exchanger (Chiller)
      • Reservoir
      • Heat Pump Operation Heater Core
      • Fluid Collector
      • RESTRICTOR
      • Receiver/Dryer
      • Expansion Valve With And Without Shut-Off Valve
        • Expansion Valve Without Shut-Off Function
        • Expansion Valve With Refrigerant Shut-Off Valve
      • Refrigerant Shut-Off Valves
        • Shut-Off Valve With Two Switching States (Open Or Closed)
        • Shut-Off Valve, Which Is Regulated Via The Characteristic Curve
      • Refrigerant Line With Inner Heat EXCHANGER
      • Quick-Release Coupling Connections On Refrigerant Lines
      • Seals
      • Refrigerant Circuit Pipes And Hoses
      • Pressure Relief Valve
      • Check Valve
      • Quick-Release Coupling Connections On Refrigerant Circuit
      • Refrigerant Circuit Connections With Valve For Switches
      • Pressure Sensor And Switch On Refrigerant Circuit
      • A/C Pressure/Temperature Sensor
      • A/C Compressor Regulator Valve -N280-
      • Refrigerant Temperature Sensor
    • Possible Concerns
      • Requirements To Identify A Concern
      • Possible Concerns
      • Odor From The Heater And A/C Unit
        • Notes
        • Odor From Evaporator Or Heat Exchanger
        • Ultrasound A/C Cleaner
        • Evaporator, Spraying With Pressure Cup Gun And Spray Nozzle
    • Leaks, Finding
      • General Information For Finding Leaks On The Refrigerant Circuit
      • Refrigerant Circuit, Finding Leaks Using Electronic Leak Detector
        • Notes
        • Perform A Leak Detection Test On A Refrigerant Circuit That Is Filled With Refrigerant
      • Leaks, Finding With UV Leak Detection System
      • FINDING LEAKS VIA VACUUM TEST USING A/C Service Station OR WITH PRESSURE TEST
      • Leaks, Determining With A Pressure Test, With Nitrogen Or Compressed Air
    • Components, Replacing
      • General Information For Replacing Components
      • Leaking Or Damaged Areas, Replacing, Empty Refrigerant Circuit Except A/C Compressor And Receiver/Dryer
      • Leaking Or Damaged Areas, Replacing, Full Refrigerant Circuit Except A/C Compressor And Receiver/Dryer
      • A/C Compressor, Replacing Without The Need For Flushing Refrigerant Circuit
      • Compressor, Replacing On Account Of Leakage Or Internal Damage
      • Dryer Cartridge/Receiver/Dryer. Replacing After Cleaning Refrigerant Circuit
      • Receiver/Dryer, Replacing Without The Need For Flushing Refrigerant Circuit
      • Dryer Cartridge And Desiccant Bag, Replacing Without The Need For Flushing Refrigerant Circuit
    • Refrigerant Circuit, Cleaning
      • General Information For Flushing Refrigerant Circuit
      • Cleaning The Refrigerant Circuit, Preliminary Work (Flushing With Refrigerant R1234YF)
      • Refrigerant Circuit, Cleaning Process
      • Connection Diagram For Cleaning (Flushing), Refrigerant Circuit With Expansion Valve And Receiver/Dryer
      • Connection Diagram For Cleaning (Flushing), Refrigerant Circuit With RESTRICTOR And Container (Without High-Voltage System)
      • Connection Diagram For Cleaning (Flushing), Vehicles With High-Voltage System (Without Additional A/C System Functions)
      • Connection Diagram For Cleaning (Flushing), Vehicles With High-Voltage System (With Additional A/C System Functions Such As Heat Pump Operation)
      • Adapter For Assembling Flushing Circuit
        • Notes
        • Passenger Vehicle
        • Assembling The Flushing Circuit
        • Arteon From My 2018
        • Atlas from MY 2017
        • CC from MY 2012
        • e-Golf from MY 2014
        • E-Golf From My 2014 With Heat Pump
        • Golf From MY 2013, Golf From MY 2015, Golf Wagon From MY 2014, Golf Wagon From MY 2015, Golf Sportsvan From MY 2015, Touran From MY 2016
        • Golf MEX From MY 2018
        • Golf GTE, Passat GTE
        • Golf Convertible From MY 2012, Scirocco From MY 2015
        • Passat From MY 2015, Passat Wagon From MY 2015, Passat From MY 2018, Passat Wagon From MY 2018
        • Passat (NMS-US) From MY 2016
        • Polo From MY 2014
        • Polo From MY 2018
        • Sharan From MY 2016
        • T-Roc From MY 2018
        • Tiguan From MY 2016, Tiguan MEX From MY 2017
        • Touareg From MY 2015
        • Touareg From MY 2018
        • up! From MY 2017, e-up! From MY 2017
        • Jetta From MY 2015, The Beetle From MY 2017, The Beetle Cabriolet From MY 2017
        • Caddy From MY 2016
        • Crafter From MY 2017 or MAN TGE
        • Transporter From MY 2016
      • General Information For Blow Through With Compressed Air Or Nitrogen
      • Refrigerant Circuit, Flushing With Compressed Air Or Nitrogen
    • Pressure, Checking With Pressure Gauge
      • Pressure Gauge Display
      • Pressure Gauge Uses
  • Working With A/C Service Station
    • Working With A/C Service Station
    • A/C Service Station On Refrigerant Circuit, Connecting
    • Refrigerant Gas Analysis, Performing
    • Refrigerant Circuit, Discharging
    • Refrigerant Circuit, Evacuating
    • Refrigerant Circuit, Charging
    • A/C System, Operating After Charging
    • A/C Service Station, Switching Off And Disconnecting From Refrigerant Circuit
    • Refrigerant, Filling In Reservoir
    • A/C Service Station, Discharging
    • Electrically Driven A/C Compressor, Cleaning
    • Refrigerant Circuit, Cleaning
    • Contaminated Refrigerant, Filling In Recycling Container For Analysis, Processing, Or Disposal
      • Contaminated Refrigerant, Filling In A Recycling Bottle, Using Technical Devices
      • Contaminated Refrigerant, Filling In The Recycling Bottle By Cooling