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 MANUALSAUDI2018A5 QUATTRO PRESTIGE, 2D CONVERTIBLEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 100 (AIR CONDITIONING (COMPONENT LOCATION OVERVIEW))
2018 Audi A5 Quattro Prestige, 2D Convertible
Section 100 (Air Conditioning (Component Location Overview))
2018 Audi A5 Quattro Prestige, 2D ConvertibleSECTION Section 100 (Air Conditioning (Component Location Overview))
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2020 Audi S3, 2020 Audi RS 3, 2020 Audi A3 Quattro, 2020 Audi A3, and 2019 Audi S3. 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 - Condenser, A/C Compressor, Refrigerant Lines And Expansion Valve
- Refrigerant Circuit Pressure Sensor -G805-, REMOVING AND INSTALLING
- A/C Pressure/Temperature Sensor -G395-, REMOVING AND INSTALLING
- A/C Compressor Regulator Valve -N280-, CHECKING SWITCH-ON SIGNAL
- Heater and A/C Unit Refrigerant Cut-Off Valve -N541-, REMOVING AND INSTALLING
- High Voltage Battery Heater Core Refrigerant Cut-Off Valve -N542-, REMOVING AND INSTALLING
- Additional Weight On Refrigerant Line
- Expansion Valve, Removing And Installing
- Refrigerant Lines, Disconnecting And Connecting At Condenser
- Condenser, Removing And Installing
- Dryer Cartridge, Removing And Installing
- Refrigerant Lines With Inner Heat EXCHANGER, Removing And Installing
- Service Connection Differences, Depending On Refrigerant (R134A Or R1234YF)
- Service Connection On Low And High Pressure Side, Removing And Installing
- A/C System, Starting Operation After Filling Refrigerant Circuit
- A/C Compressor
- Overview - A/C Compressor Power Unit
- Overview - Belt Pulley, Mechanically Driven A/C Compressor
- A/C Compressor, Removing And Installing On Bracket
- Refrigerant Lines, Disconnecting And Connecting At A/C Compressor
- A/C Compressor, Removing And Installing
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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.