Audi Q7: Body

 Overview - Air Lines

1 - Air Supply Unit with Level Control System Compressor Motor -V66- Overview. Refer to → Chapter "Overview - Air Supply Unit". 2 - Air Line "Brown" To solenoid valve block Connector tightening specification 3 Nm 3 - "Purple" Air Line Connecting piece

 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