OEM Xenon HID Headlight Ballast Control Unit – 4M0 907 397 AD

Bring your headlights back to full brightness with this genuine OEM Xenon HID Ballast (Part No. 4M0 907 397 AD). Designed for precision, power stability, and long-term reliability, this ballast provides consistent voltage and quick ignition for HID bulbs — ensuring maximum visibility and safety on the road.

Engineered to meet factory standards, it’s a plug-and-play replacement for your original ballast. Built with premium aluminum materials to resist heat, moisture, and vibration, this unit guarantees lasting OEM performance trusted by Audi and Volkswagen owners worldwide.

Features:

• Genuine OEM Replacement Part – 4M0 907 397 AD

• Designed for HID/Xenon headlight systems

• Eliminates flickering and dim light issues

• Plug-and-play installation – no coding or programming required

• High-quality aluminum casing for maximum durability

• Meets or exceeds factory OEM specifications

Compatible With (varies by year/model):

• Audi: A6 / A7 / A8 / Q7 / Q8 / S6 / S7 / S8

• Volkswagen: Touareg
  (Confirm your part number and headlight type before purchasing)

Specifications:

• Voltage: 12 V

• Type: Xenon HID Ballast Control Unit

• Material: Aluminum Alloy

• Condition: New / OEM-Quality Replacement

Common Signs of Ballast Failure:

• HID bulb won’t ignite or flickers

• Headlight shuts off after a few seconds

• One headlight dimmer than the other

Restore your lighting system’s full performance with the OEM Xenon HID Ballast 4M0907397AD — the trusted factory-grade solution for reliability, safety, and brilliant illumination.