Audi Q7: Passenger Protection, Airbags, Seat Belts

 Exhaust Manifold

Overview - Exhaust Manifold 1 - Nut Replace after removing Coat the thread with hot bolt paste. Refer to the Parts Catalog. Tightening specification and sequence: left. Refer to → Fig. "Left Exhaust Manifold - Tightening Specification and Sequence", right → Fig. "Righ

 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