Audi Q7: Telephone System

 Automatic luggage compartment lid

Applies to: vehicles with automatic luggage compartment lid Fig. 28 Luggage compartment lid: (1) closing button, (2) lock button* (vehicles with convenience key) The luggage compartment lid can be opened and closed automatically in General information. Opening the luggage compartment lid When

 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