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 MANUALSAUDI2019S5 PRESTIGE, 2D COUPEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 143 (AIR CONDITIONING)
2019 Audi S5 Prestige, 2D Coupe
Section 143 (Air Conditioning)
2019 Audi S5 Prestige, 2D CoupeSECTION Section 143 (Air Conditioning)
WARNING: This page is about a different car, the 2019 Audi S5 Sportback, 2019 Audi RS 5 Sportback, 2019 Audi A5 Sportback, 2018 Audi S5 Sportback, and 2018 Audi A5 Sportback. However, it is still accessible from the selected car via links, so may be relevant.
- 87 Air Conditioning
- Component Location Overview - A/C System
- Refrigerant Circuit
- System Overview - Refrigerant Circuit
- Overview - Refrigerant Lines
- Overview - Condenser
- High Pressure Sensor -G65-, Removing And Installing
- Refrigerant Lines, Disconnecting And Connecting
- Refrigerant Lines With Inner Heat EXCHANGER, Removing And Installing
- Refrigerant Lines In Plenum Chamber, Removing And Installing
- Expansion Valve, Removing And Installing
- Condenser, Removing And Installing
- Refrigerant Lines, Disconnecting And Connecting At Condenser
- Desiccant Bag/Dryer Cartridge, Removing And Installing
- Evacuating And Charging Valve, Removing And Installing, Low And High Pressure Side
- A/C System, Starting After Charging Refrigerant Circuit
- A/C Compressor
- Overview - A/C Compressor Power Unit
- Overview - Belt Pulley
- OVERVIEW - A/C COMPRESSOR BELT PULLEY, "Denso" VERSION "1"
- OVERVIEW - A/C COMPRESSOR BELT PULLEY, "Denso" VERSION "2"
- OVERVIEW - A/C COMPRESSOR BELT PULLEY WITH A/C Clutch -N25-, "Denso"
- OVERVIEW - BELT PULLEY, "Sanden" A/C COMPRESSOR
- OVERVIEW - A/C COMPRESSOR BELT PULLEY WITH A/C Clutch -N25-, "Sanden"
- A/C Compressor, Removing And Installing From Bracket
- Refrigerant Lines, Removing And Installing At A/C Compressor
- A/C Compressor, Removing And Installing
- Information On The Mechanically Driven A/C Compressor
- A/C Compressor, Removing And Installing, Vehicles With 4-Cylinder Engine
- A/C Compressor, Removing And Installing, Vehicles With 6-Cylinder Engine (Except 6-Cylinder 2.9L TFSI Engine)
- A/C Compressor, Removing And Installing, Vehicles With 6-Cylinder 2.9L TFSI Engine
- Preliminary Work For Replacing Belt Pulley
- Belt Pulley, Removing And Installing
- BELT PULLEY (WITHOUT A/C Clutch -N25-), REMOVING AND INSTALLING, A/C COMPRESSOR "Denso" MANUFACTURER VERSION "1"
- BELT PULLEY (WITHOUT A/C Clutch -N25-), REMOVING AND INSTALLING, A/C COMPRESSOR "Denso" MANUFACTURER VERSION "2"
- BELT PULLEY (WITHOUT A/C Clutch -N25-), REMOVING AND INSTALLING, A/C COMPRESSOR "Sanden" MANUFACTURER
- BELT PULLEY WITH A/C Clutch -N25- INFORMATION
- CLUTCH PLATE, REMOVING AND INSTALLING, A/C COMPRESSOR "Denso" (WITH A/C Clutch -N25-)
- CLUTCH PLATE, REMOVING AND INSTALLING, A/C COMPRESSOR "Sanden" (WITH A/C Clutch -N25-)
- BELT PULLEY, REMOVING, WITH A/C Clutch -N25-
- GAP DIMENSION BETWEEN BELT AND CLUTCH PLATE, CHECKING, "Denso" A/C COMPRESSOR, WITH A/C Clutch -N25-
- GAP DIMENSION BETWEEN BELT AND CLUTCH PLATE, CHECKING, "Sanden" A/C COMPRESSOR (WITH A/C Clutch -N25-)
- Adjustment Motors
- Component Location Overview - Front Adjustment Motors
- Overview - Front Adjustment Motors
- General Information And Procedures - Actuators, Removing And Installing
- Fresh Air Door Motor -V438- Function, Removing And Installing
- Defroster Door Motor -V107-, Removing And Installing
- RECIRCULATION Door Motor -V113-, Removing And Installing
- Temperature Control Door Motor -V68-, Removing And Installing
- Rear Temperature Control Door Motor -V137-, Removing And Installing
- Left Temperature Control Door Motor -V158-, Removing And Installing
- Right Temperature Control Door Motor -V159-, Removing And Installing
- Rear Air Distribution Door Motor -V427-, Removing And Installing
- Air Distribution Door Motor -V428-, Removing And Installing
- Left Side Vent Motor -V299-, Removing And Installing
- Right Side Vent Motor -V300-, Removing And Installing
- Instrument Panel Vent Motor -V562-, Removing And Installing
- Bracket For Adjustment Motors On Heater And A/C Unit, Removing And Installing
- Rear Temperature Control Door Motor:V137 Bracket, Removing And Installing
- LEFT ADJUSTMENT MOTOR BRACKET, REMOVING AND INSTALLING, "Low" A/C SYSTEM (OR A HEATHER WITHOUT A/C SYSTEM)
- LEFT ADJUSTMENT MOTOR BRACKET, REMOVING AND INSTALLING, "High" A/C SYSTEM
- RIGHT ACTUATOR BRACKET, REMOVING AND INSTALLING, "Low" A/C SYSTEM (OR A HEATHER WITHOUT A/C SYSTEM)
- RIGHT ADJUSTMENT MOTOR BRACKET, REMOVING AND INSTALLING, "High" A/C SYSTEM
- Rear Air Distribution Door Motor -V427- Bracket, Removing And Installing
- Front Heater And A/C Unit
- Overview - Heater And A/C Unit
- Overview - Heater And A/C Unit Attachments, Air Distribution Housing, Heat EXCHANGER, Etc.
- Overview - Heater And A/C Unit Air Intake Housing
- Overview - Evaporator Housing
- Evaporator, Removing And Installing
- Evaporator, Cleaning
- Auxiliary Heater Heating Element -Z35-, Removing And Installing
- Heater And A/C Unit, Removing And Installing
- Air Intake Manifold From Heater And A/C Unit, Removing And Installing
- Dust And Pollen Filter, Removing And Installing
- Fresh Air Blower -V2- With Fresh Air Blower Control Module -J126-, Removing And Installing
- Heater Core, Removing And Installing
- Condensation Water Drain, Removing And Installing
- Condensation Water Drain, Checking
- Air Routing
- Overview - Air Routing And Air Distribution In Vehicle Interior
- Air Intake And Outlet Openings
- Driver Side FOOTWELL Vent, Removing And Installing
- Front Passenger Side FOOTWELL Vent, Removing And Installing
- Air Duct For Glove Compartment Cooling, Removing And Installing
- Vehicle Interior Forced Air Extraction, Removing And Installing
- Vehicle Interior Forced Air Extraction, Checking
- Fresh Air Intake, Removing And Installing
- Plenum Chamber Water Drain, Checking
- Plenum Chamber Water Drain, Cleaning
- Coolant Circuit
- Display Control Head
- Additional Components For Control And Regulation
- Rear Upper Body Vent Temperature Sensor -G537-, Removing And Installing
- Left Rear FOOTWELL Vent Temperature Sensor -G637-, Removing And Installing
- Sunlight Photo Sensor -G107-, Removing And Installing
- Humidity Sensor In Fresh Air Intake Duct -G657- /Air Quality Sensor -G238-, Removing And Installing
- Outside Air Temperature Sensor -G17-, Removing And Installing
- Left And Right Front Upper Body Vent Temperature Sensor -G385- /:G386, Removing And Installing
- Left FOOTWELL Vent Temperature Sensor -G261-, Removing And Installing
- Right FOOTWELL Vent Temperature Sensor -G262-, Removing And Installing
- Evaporator Vent Temperature Sensor -G263-, Removing And Installing
- Humidity Sensor -G355-, Rain/Light Recognition Sensor -G397-, And Sunlight Photo Sensor -G107-, Removing And Installing
- Special Tools
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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.