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 18 (AIR CONDITIONING (REFRIGERANT R134A SERVICING) (PRESSURES, CHECKING))
2024 Audi S3 Premium
Section 18 (Air Conditioning (Refrigerant R134A Servicing) (Pressures, Checking))
2024 Audi S3 PremiumSECTION Section 18 (Air Conditioning (Refrigerant R134A Servicing) (Pressures, Checking))
WARNING: This page is about a different car, the 2022 Audi S3, 2022 Audi RS 3, 2022 Audi A3 Quattro, and 2022 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.
- 87 Air Conditioning
- Refrigerant Circuit
- Refrigerant Circuit, Cleaning (Flushing) With Refrigerant R134A
- Notes
- Sequence of flushing procedure (sequence occurs automatically according to the A/C service station program)
- Notes
- Flushing Circuit Block Diagrams
- Refrigerant Circuit with Restrictor and Reservoir
- Refrigerant Circuit with Expansion Valve, Receiver/Dryer and Second Evaporator
- Vehicles with High-Voltage System (without Additional A/C System Functions, for Example the Audi A3 e-tron, Audi Q5 hybrid etc.)
- Vehicles with High-Voltage System (with Additional A/C System Functions, such as Heat Pump Operation on Audi Q7 e-tron, for Example)
- Electrically-Driven A/C Compressor, Flushing (Removing Refrigerant Oil)
- Flush the electrically driven A/C compressor.
- Adapter For Assembling Flushing Circuit
- Audi A3 (8L_) from MY 1997
- Audi A3 (8V_/ 85_) from 2013
- Audi A3 TFSIe (8Y_) from MY 2021
- Refrigerant Circuit, Determining Leaks
- General Information
- Refrigerant Circuit, Tracing Leaks Using Electronic Leak Detector (For Example, :VAG1796)
- Leak Detection On Refrigerant Circuit Using Leak Detection Kit:Vas6201A
- Notes
- Add the UV-Leak Detection Additive Using the A/C Service Station to the Refrigerant Circuit.
- 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
- Finding Leaks Via Vacuum Test Using A/C Service Station Or Nitrogen Pressure Testing
- Refrigerant Circuit, Cleaning (Flushing) With Refrigerant R134A
- Refrigerant Circuit Complaints
- A/C Service Station, Connecting
- Pressures, Checking
- Refrigerant Circuit, Checking Pressure With Service Station
- Checking Pressures For Vehicles With RESTRICTOR And Reservoir (With Internally Regulated Compressor)
- Checking Pressures On Vehicles With Expansion Valve And Receiver/Dryer (With Internally Regulated Compressor)
- Vehicles With RESTRICTOR, Reservoir And A/C Compressor Regulator Valve -N280- (Externally Regulated A/C Compressor), Checking Pressures
- Vehicles With RESTRICTOR, Receiver/Dryer And A/C Compressor Regulator Valve -N280-, Checking Pressures, Externally Regulated Compressor
- Refrigerant Circuit
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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.