Electrical System

Alternator – Specifications

~1min read

PROCEDURE

Type: Bosch or Motorola. Maximum output: 55, 65 or 90 A. Minimum brush length: 5 mm. Rotor winding resistance, Bosch alternator: – 55 A: 2.9 to 3.2 Ohm – 65 A: 2.8 to 3.1 Ohm – 90 A: 3.0 to 4.0 Ohm. Rotor winding resistance, Motorola alternator: – 55 A: 3.3 to 3.71 Ohm – 65 A: 3.9 to 4.1 Ohm

Test yourself

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