Body Electrical System

Wiring

~1min read

The wire cross-section is selected depending on the current of the corresponding consumer: a 0.5 mm² wire is sufficient for an indicator lamp, while the starter motor requires a 15 mm² wire. A wire that is too thin heats up and voltage drops. In this case, instead of the required 12 V, only 10 or 9.5 V reaches the headlights, and the lighting becomes dim.

Test yourself

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