Audi VW Voltage Regulator - Vemo 028903803D

Product Information

A Voltage Regulator is a component in a vehicle's charging system that controls the output voltage from the alternator to the battery and electrical system. Its primary role is to ensure the voltage remains within a safe range, typically around 13.5-14.5 volts, to prevent overcharging or undercharging the battery and other electronic components. Maintaining stable voltage is essential for protecting the battery and ensuring that electrical components receive consistent power.

• Dimming or Flickering Lights: A faulty voltage regulator can cause inconsistent power output, resulting in dimming, flickering, or overly bright headlights and interior lights. This is often more noticeable when electrical demand is high
• Battery Warning Light: If the regulator fails, the battery light on the dashboard may illuminate, indicating an issue with the charging system. This can happen if the regulator causes overcharging (high voltage) or undercharging (low voltage), which may deplete or damage the battery
• Dead or Overcharged Battery: A defective voltage regulator can either undercharge or overcharge the battery. Undercharging leads to insufficient power for starting the engine, while overcharging can cause battery overheating, leakage, or even permanent damage

About Vemo

The premium brand VEMO is known as a specialist in sensors and exhaust gas recirculation. Besides continuous product development in the field of EGR, VEMO is also a leading manufacturer of sensors, switches, relays and air suspension on the aftermarket. With our VEMO Expert Kits+, we help you carry out fast, cost-effective repairs and save you time and money!

The VEMO range includes high-quality products suitable for European vehicles such as VW, AUDI, BMW, MERCEDES-BENZ and PSA, as well as for those from Asian manufacturers such as TOYOTA, KIA and many more. The premium brand VEMO is characterized by its customers’ continuing trust and the benefits of extensive experience in the automotive industry.