What Causes Excessive Voltage in BMW Engines?

1 Answers
VonViolet
07/29/25 1:46pm
BMW engine excessive voltage is caused by faults in the generator voltage regulator, generator malfunctions, etc. Below is a detailed explanation of the causes and solutions to this issue: Voltage Regulator Fault: If the engine voltage regulator malfunctions, the generator regulator loses control or the voltage detection circuit becomes abnormal, it can cause the generator to produce excessive voltage. Solution: Replace the voltage regulator with a new one. Generator Fault: Internal issues in the generator, such as problems with the stator or rotor, can lead to poor generator performance, resulting in excessive voltage at the source. Solution: Inspect and replace the generator.
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