Test Requirements

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Electrical Equipment, vacuum system and air duct fault-finding has not revealed any faults. Refer to Guided Fault Finding for the A/C system ("OBD" or "Guided Fault Finding for the A/C system"), the appropriate Wiring Diagram.

The OBD/Guided Fault Finding for the A/C System with Vehicle Diagnostic Tester cannot detect a fault, the A/C compressor shut off condition is not displayed in the measured values block (only on vehicles with OBD "A/C System"). Refer to"Guided Fault Finding" .