Audi Q7: Maintenance and Care

 Air Quality Sensor -G238- Function

Function of Air Quality Sensor -G238-   Note There are different versions of the Air Quality Sensor -G238-/ humidity sensor in Fresh Air Intake Duct -G657--A-. Therefore, ensure the correct allocation. Refer to the Parts Catalog. Depending on the vehicle version, there are different fres

 Heating Output and Temperature Door Activation, Testing Requirements

The coolant circuit is bled according to specifications. Refer to → Rep. Gr.19; Coolant System/Coolant; Coolant, Draining and Filling The engine is warm (the coolant temperature is higher than 80 ºC (176 ºF) ). Radiator and condenser are clean (if necessary, clean). All air du