Xenon HID Ballast Control Module With D3S Socket for Audi A4 A5 A6
Flickering Xenon beams or sudden dimming usually points to a compromised ballast rather than a standard bulb failure. This Xenon HID Ballast Control Module replaces the degraded circuitry directly behind your headlamp housing, delivering steady voltage and rapid ignition curves. Built to align with OEM specification W0003T21971 and equipped with a D3S socket, the unit mounts straight into your factory bracket. You get reliable night driving visibility without extra adapters, custom wiring, or ECU coding.
Benefits & Practical Tips
- Direct bolt-on design simplifies swapping out water-damaged or overheated control units.
- Verify your chassis production year and trim level against the fitment list to confirm correct operating voltage.
- Store backup modules in a sealed container during off-season storage to block humidity and prevent corrosion.
Product Specifications
- Type: HID Headlight Controller Unit Module
- Reference Number: W0003T21971
- Socket Interface: D3S
- Certification: CE
- Testing Standard: 100% factory tested for stable performance and long-term reliability
Package Includes:
- 1 × Xenon HID Ballast Control Module with built-in D3S socket
Warnings & Reminders
- Confirm exact compatibility using the OEM part number or share clear photos of your current assembly before ordering. Mismatched units may trigger dashboard fault messages or produce uneven light distribution.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
Maintain confident evening drives with verified component history and straightforward replacements sourced through intercyrus.com.
