Audi Q7: Heating, Ventilation & Air Conditioning

 Heated Oxygen Sensor

Overview - Heated Oxygen Sensor   Note Coat the new heated oxygen sensors with an assembly paste. Only the thread may be coated with hot bolt paste on a used oxygen sensor. Refer to the Parts Catalog Assembly paste or hot bolt paste must not enter the slots on the sensor body. 1 

 Protective Diode -J201-, Removing and Installing

Removing - Disconnect the ground cable from the battery when the ignition is switched off. Refer to → Chapter "Battery, Disconnecting and Connecting". - Remove the front sill panel. Refer to → Body Interior; Rep. Gr.70; Vehicle Interior Trim Panels; Sill Panel,