Audi Q7: Chassis

 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

 When driving

Starting to drive, stopping, and parking Starting from a stop Press and hold the brake pedal. Start the engine. Select "D" or "R". Release the parking brake. Release the brake pedal. The vehicle may roll. Press the accelerator pedal to accelerate. Securing the vehicle against rolling Secure