Voltage regulator on Benz 300E


Asked by Oct 05, 2014 at 12:43 AM about the 1993 Mercedes-Benz 300-Class 4 Dr 300E Sedan

Question type: Maintenance & Repair

Can the voltage regulator on the alternator of my Benz 300E be replaced without removing the alternator?

2 Answers


No, it is built in to the alternator,it will need removing to do this.


If it is Bosch, yes you can. Disconnect Battery. Unscrew nut 13mm cable. Unscrew 2 8mm, small cable, one 8mm on top of the 2nd. unscrew 3 small phillips screws on plastic cover. pry at side clips of cover. Underneath you will find Bosch voltage regulator. remove 2 screws that hold it.

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