BMW Voltage Regulator Parts

Showing 12 out of 12 part(s) found in our catalog.

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OEM
Due to numerous supercessions this unit fits many alternators, please specify Bosch number from existing regulator assembly to verify application. 1 per car.
BMW 325i, M3, 535i, 525i, M5, 320i, 325is, 318i, 325e, 635CSi & more
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$48.99
Reg
$51.03
List
$88.45
1 per car.
BMW 325i, 535i, 525i, M5, 320i, 325is, 318i, 325e, 635CSi, 325iC & more
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$23.09
Reg
$24.05
List
$192.89
OEM
BMW X5, 328i, X3, 535i, 528i, 335i, 328i xDrive, 535i xDrive, 528i xDrive, 128i & more
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$40.99
Reg
$42.70
List
$178.98
OEM
For models with 180A Bosch alternator.
BMW 335i, 335i xDrive
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$41.99
Reg
$43.74
List
$169.54
OEM
Please verify Bosch number (Long number 1197311027 or 1197311035) on existing regulator assembly prior to ordering. 1 per car.
BMW 750iL, 850i, 850Ci, 850CSi
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$40.99
Reg
$42.70
List
$216.48
OEM
BMW X5, 328i, 325i, 530i, 330i, 328i xDrive, 525i, 550i, 325xi, 650i & more
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$66.99
Reg
$69.78
List
$200.71
BMW M5, 335d, M6
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$58.99
Reg
$61.45
List
$217.45
OEM
For models with 120A Bosch alternator only. Please verify failure issue prior to ordering, Bosch does not recommend replacement of just regulator over entire remanufactured alternator. 1 per car.
BMW X5, 325i, 530i, 330i, 330Ci, 525i, Z3, 325Ci, 325xi, 330xi & more
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$36.99
Reg
$38.53
List
$231.77
OEM
BMW X5, X6
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$56.99
Reg
$59.36
List
$208.32
OEM
For models with 90A, 120A, or 140A Valeo brand alternators only. 1 per car.
BMW X5, 325i, M3, 530i, 330i, 330Ci, 525i, Z3, 325Ci, 325xi & more
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$70.99
Reg
$73.95
List
$188.02
BMW X5
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$70.99
Reg
$73.95
List
$200.71
OEM
For models with Valeo alternator only, please verify manufacturer prior to ordering. 1 per car.
BMW 328i, 325i, M3, 530i, Z3, 325is, 318i, 325iC, 328is, 318is & more
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$60.99
Reg
$63.53
List
$191.60

BMW voltage regulator typically cost between $23.09 and $70.99.

A BMW's voltage regulator is a circuit in the electrical system that generates and maintains a fixed output voltage. It helps to ensure that the voltage from the power source remains constant, even when the quantity of power drawn from the battery fluctuates. In layman's terms, it ensures that the proper quantity of energy is flowing to the car's engine and other electrical components. Voltage regulators are typically installed into the alternator of a vehicle.

It can be difficult to anticipate the exact lifespan of your alternator voltage regulator. However, under normal environmental conditions, your voltage regulator may outlive the useful life of your car. To be more specific, many mechanics agree that the voltage regulator in your vehicle can survive up to 100,000 miles. However, if your car is continuously exposed to harsh winter or summer weather, this lifespan can shrink.

There are a few signals that your BMW's voltage regulator is failing. Here are some of the most common symptoms of a broken regulator:

  • High voltage output - 16 volts or higher
  • Power dips - engine sputtering, a rough idle, or a lack of acceleration
  • The instrument cluster is not operational
  • Flashing or fading lights
  • Inoperative high beams
  • Corrosion spreading on the battery's terminals and top
  • A drained battery

If you detect any of these problems, take your BMW to a mechanic for a checkup. Voltage regulators can be repaired in some circumstances, but in others, they must be replaced. So, when it comes to BMW voltage regulator parts, AutohausAZ is the place to go. Did you know that the majority of other BMW voltage regulator parts websites are controlled by the same company? We are one of the few independent BMW voltage regulator parts websites helping our prices be the lowest on the internet.

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