Xenon Headlight Ballast Control Unit 4G0907397Q For AUDI A6 C7 Q3 8U A3 8V US

Xenon Headlight Ballast Control Unit for Audi

This replacement xenon headlight ballast control unit supplies the precise starting voltage to operate gas-discharge lamps, cross-referencing part number 4G0907397Q.

Overview

This xenon headlight ballast control unit regulates the electrical current for stable headlight operation. Over time, moisture ingress can cause the factory xenon headlight ballast control unit to fail, resulting in flickering or inoperative headlights. This replacement xenon headlight ballast control unit restores consistent lighting output to keep your road visibility clear.

Built For Performance

• Engineered with internal circuitry that matches OEM electrical standards
• Provides stable power output to prevent headlight flicker and warning codes
• Constructed with a heavy-duty aluminum shell for heat dissipation
• Plugs directly into the headlamp assembly with no wiring modifications

Fits These Machines

• for Audi A6 C7 US Spec
• for Audi Q3 8U US Spec
• for Audi A3 8V US Spec

On-The-Job Use

• Replacing failed factory ballasts causing headlight activation failure
• Restoring headlight system operation after minor front-end water damage
• Replacing damaged HID components during scheduled lighting maintenance

Specs At A Glance

Good To Know

Q: Does this ballast require programming or coding? A: For some modern vehicles, programming the headlight control module is required after installation to clear dash error codes. Check your vehicle workshop manual for specifics.

Q: Does this kit include the HID bulb? A: No, this is the ballast control unit only. Xenon bulbs must be purchased separately if your current bulb is burnt out.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.