Audi 80 Quiz
Ignition System

Actuator

In this manual: Ignition System
Technical Description — 39Engines — 41Exhaust System — 13Cooling System — 28Fuel tank and fuel pump — 12Air Filter and Intake Ducts — 13Mono-Motronic Injection System — 18Digifant Injection System — 19KE-III-Jetronic Injection System — 35MPI and MPFI Injection Systems — 32Clutch — 11Transmission and Driveline — 21Suspension and Steering — 33Brake System — 41Anti-lock brake system — 8Wheels and Tires — 13Body Electrical System — 35Ignition System — 24Lighting — 14Signaling Devices — 7Instruments and Auxiliary Equipment — 54Heating and Ventilation — 7Body Components — 18Troubleshooting — 6Specifications — 13
~1min read

Electronic transistor switch

The electronic switch contains a powerful transistor that switches the current supply to the ignition coil (or ignition coils) on and off. In this way, the high voltage cannot interfere with the sensitive electronics of the control unit. However, the transistor does not switch current at the moment the Hall sender (4- and 5-cylinder models) or the ignition timing sender (6-cylinder models) sends its signals. The control unit determines the correct ignition timing independently and thereby issues the on/off signal.

Test yourself

A quick Audi 80 quiz: every answer comes with an explanation and a link to the manual page.