Audi Q7: Heating, Ventilation & Air Conditioning

 Ignition and Timing

Ignition A spark ignition (SI) engine requires a spark to initiate combustion in the combustion chamber. Voltage is supplied to the spark plug where the electricity will arc across a gap at a voltage as high as 100 kilovolts. The ECM determines the precise moment to fire each spark plug using ig

 Door, Removing and Installing

Removing - Disconnect the door connector -2- from the B-pillar. Refer to → Electrical Equipment; Rep. Gr.97; Connectors. - Tape off the B-pillar in the door arrester area using adhesive tape, so that the paint will not be damaged. - Remove the bolt -1- for the doo