After Charging A/C System And Before Activating A/C System

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.

Mechanically Driven A/C Compressor

After attaching the A/C compressor to the engine (before positioning the belt or installing the input shaft). Refer to Refer to A/C SYSTEM, OPERATING AFTER CHARGING and A/C Compressor .

-- Turn the A/C compressor approximately 10 turns by hand via the clutch plate or belt pulley on the A/C clutch.

After charging. Refer to A/C SYSTEM, OPERATING AFTER CHARGING .

-- Start the engine with the A/C system turned off (A/C Clutch -N25- and A/C Compressor Regulator Valve -N280- are not actuated).

-- After the engine idle speed stabilizes, switch on the A/C compressor and operate for at least 10 minutes at idle speed with maximum cooling output.

Electrically-Driven A/C Compressor

-- First start the electrically-driven A/C compressor after charging the refrigerant circuit via the "compressor cut-in" function of the basic setting. Refer to A/C SYSTEM, OPERATING AFTER CHARGING and Vehicle Diagnostic Tester in Guided Fault Finding Function for A/C System and Battery Regulation.