OEM Xenon HID Headlight Ballast Control Unit – 4L0 907 391

Fix dim, flickering, or non-working xenon headlights with this genuine OEM HID Ballast Control Unit (Part No. 4L0 907 391). Engineered to deliver consistent voltage and quick ignition for HID bulbs, this ballast restores full brightness and reliable lighting performance for safer driving at night.

Manufactured to OEM specifications, this unit guarantees perfect fitment and plug-and-play installation — no modifications or coding required. It’s a direct replacement for the original ballast found in many Audi and Volkswagen models.

Features:

• Genuine OEM Replacement Part – 4L0 907 391

• Compatible with HID/Xenon headlight systems

• Restores stable brightness and eliminates flicker

• Plug-and-play fitment, no coding required

• Durable aluminium casing for heat and moisture resistance

• Meets or exceeds factory performance standards

Compatible With (varies by year/model):

• Audi A6 / A7 / Q7 / S6 / S7

• Volkswagen Touareg
  (Always confirm your part number and connector before purchase)

Specifications:

• Voltage: 12V

• Type: HID/Xenon Headlight Ballast

• Material: High-grade aluminum alloy

• Condition: New OEM-quality replacement

Common Symptoms of Ballast Failure:

• One or both headlights not working

• Flickering or dim light output

• Bulb flashes briefly then turns off

Restore your headlight performance and night-time visibility with this OEM Xenon Ballast 4L0907391 — a reliable, high-quality solution trusted by Audi and VW drivers worldwide.