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

 Anti-Theft Alarm System

Overview - Interior Monitoring 1 - Alarm Horn -H12- Removing and installing. Refer to → Chapter "Alarm Horn -H12-, Removing and Installing, Not for North America". 2 - Bracket For Alarm Horn -H12- 3 - Nut 3 Nm 4 - Nut 3 Nm 5 -