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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSAUDI2018A5 QUATTRO PRESTIGE, 2D CONVERTIBLEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 213 (AIR CONDITIONING)87 AIR CONDITIONINGREFRIGERANT CIRCUITREFRIGERANT LINES, DISCONNECTING AND CONNECTINGNOTES
2018 Audi A5 Quattro Prestige, 2D Convertible
Refrigerant Lines, Disconnecting And Connecting: Notes
2018 Audi A5 Quattro Prestige, 2D ConvertibleSECTION Notes
WARNING: This page is about a different car, the 2022 Audi A4 allroad, 2021 Audi A4 allroad, and 2020 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and workshop equipment required
- Engine Bung Set :VAS6122
- The procedure for loosening applies to all connection points in the refrigerant circuit and for the branching point of refrigerant lines to rear heater and A/C unit. There are differences in the line connection diameter, O-ring versions and mounting bolts.
- Depending on component location, various components in vicinity of connection points must be loosened or removed to be able to disconnect the connection point.
- The following illustration below shows as an example the connection points between the refrigerant lines from the inner heat exchanger to the A/C compressor and to the condenser as well as the connection points on the opening in the perform to the refrigerant lines to the evaporator in the rear heater and A/C unit. These connection points are installed in the area under the left front fender.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.