1971 BMW 3.0CS Not Available TransFACTORY OEM SERVICE PROCEDURE

Alternators - BOSCH: Description

Bosch alternators are conventional three-phase, self-rectifying type alternators. Nine rectifier diodes are connected to the stator windings (three to each phase lead). The diodes change the alternator A.C. voltages to D.C. voltages coming out of the "B+" and the "D +" terminals of the alternator.

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.