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

WARNING: This page is about a different car, the 2024 Audi SQ7, 2024 Audi Q7, 2023 Audi SQ7, and 2023 Audi Q7. 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 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 the appropriate Vehicle Diagnostic Tester in Guided Fault Finding Function for A/C System and Battery Regulation.