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 MANUALSAUDI2024S3 PREMIUMREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 91 (AIR CONDITIONING (PRECAUTIONS - PRESSURES CHECKING))
2024 Audi S3 Premium
Section 91 (Air Conditioning (Precautions - Pressures Checking))
2024 Audi S3 PremiumSECTION Section 91 (Air Conditioning (Precautions - Pressures Checking))
WARNING: This page is about a different car, the 2023 Audi S3, 2023 Audi RS 3, 2023 Audi A3 Quattro, and 2023 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.
- 87 Air Conditioning
- Safety Precautions
- Notes
- Safety Precautions When Working On A/C Systems
- Safety Precautions When Handling Refrigerant
- Safety Precautions When Working On Vehicles With Start/Stop System
- Safety Precautions When Working On Vehicles With High-Voltage System
- Safety Precautions When Working Near High-Voltage Components
- Safety Precautions During Road Test With Testing Equipment
- Refrigerant Circuit
- A/C System Repair Information
- Refrigerant Circuit, Converting R12 To R134A
- Refrigerant Circuit, Cleaning (Flushing) With Refrigerant R134A
- Refrigerant Circuit, Determining Leaks
- Notes
- Refrigerant Circuit, Tracing Leaks Using Electronic Leak Detector (For Example, V.A.G 1796)
- Leak Detection On Refrigerant Circuit Using Leak Detection System Vas 6201
- Notes
- Adding the UV-leak detection additive to the refrigerant circuit using the A/C service station
- Add UV-leak detection additive using the in the refrigerant circuit.
- Adding UV-leak detection additive when the refrigerant circuit is empty
- Add the UV-leak detection additive to the refrigerant circuit via an opened connection.
- Adding UV-leak detection additive when the refrigerant circuit is full
- Detecting leaks on the refrigerant circuit using UV lamp VAS 6196/4
- Finding Leaks Via Vacuum Test Using A/C Service Station Or Nitrogen Pressure Testing
- Refrigerant Circuit Complaints
- A/C Service Station, Connecting
- Pressures, Checking
- Safety Precautions
- Glossary
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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.