General Information

WARNING: This page is about a different variant/trim than selected.

Workshop-specific instructions. Refer to the appropriate Audi ServiceNet, HSO Environmental Protection.
Ensure absolute cleanliness when working.
Wear protective eyewear and safety gloves when working with refrigerant and nitrogen.
Workshop ventilation systems must be switched on.
Only use the A/C service station to discharge the refrigerant circuit, and then open the threaded connections and replace any faulty components.
Use a cap to seal off any opened assemblies and hoses to prevent moisture and dirt from getting in.
Only use tools and materials designated for refrigerant R134a.
Seal opened refrigerant oil containers to guard against moisture.

NOTE:

After completing repair work, install closure caps (with seals) on all connections with valve and service connections.

Before operating the A/C system. Observe vehicle specific filling capacities. Refer to REFRIGERANT R134A CAPACITIES, REFRIGERANT OIL AND APPROVED REFRIGERANT OILS .

Do not add refrigerant, extract the refrigerant present and refill the system.