HID Xenon Headlight Ballast Control Unit Module for Audi, Cadillac & More

The HID or Xenon Ballast in your Audi, Mercedes-Benz, Saab, Cadillac, Lincoln, Saturn or Volvo vehicle is responsible for supplying power to your headlight's bulb. Over time, your HID Ballast can fail, resulting in a headlight that flickers or does not turn on at all. This AA Ignition HID Xenon Ballast is a direct replacement for the ballast on your Audi, Saab, Cadillac, Lincoln, Saturn or Volvo vehicle. Every ballast is designed to connect directly to your vehicle and requires NO programming or coding.

Each of your vehicle's headlights has its own ballast. These ballasts are commonly mounted either on the back or on the bottom of the headlight. While the HID Xenon Ballasts do commonly fail, so can your factory headlight bulb. Please see the procedure below to determine if your factory HID Xenon Ballast has failed or if you simply need to replace your headlight bulb.

This HID Ballast WILL NOT FIT models that have AFS or Curved Lighting. It is compatible with the following vehicles: 2008-2009 Audi A4 Cabrio w/o Curve Lighting, 2008-2009 Audi S4 Cabrio w/o Curve Lighting, 2005-2008 Audi S4 Saloon w/o Curve Lighting, 2005-2008 Audi S4 Wagon w/o Curve Lighting, 2005-2008 Audi A4 Saloon w/o Curve Lighting, 2005-2008 Audi A4 Wagon w/o Curve Lighting, 2005-2008 Audi RS4 Saloon w/o Curve Lighting, 2005-2008 Audi RS4 Wagon w/o Curve Lighting, 2006-2008 Cadillac DTS, 2008 Lincoln MKX, 2006-2008 Saab 9-7X, and 2007-2008 Saturn Outlook.

The bulb out warning light on your instrument cluster can signal that there is a problem with your headlights. While sometimes a bad headlight bulb can be to blame, it can also be a bad HID ballast. Follow the instructions below to confirm if your HID ballast is bad.

This AA Ignition replacement HID Ballast is a direct replacement for your car's factory HID ballast and will restore your headlights' function. It replaces part numbers 307 329 1158E0, 907 391 B1, and 307 329 098.

AA Ignition is a division of GWA Auto Parts, an American small business located in South Florida. Founded by long-time car enthusiasts, AA Ignition takes pride in providing quality products at an exceptional value. This HID Ballast is a compatible replacement part, not a genuine Audi, Mercedes-Benz, Saab, Cadillac, Lincoln, Saturn or Volvo part.

All of our HID Ballasts undergo strict quality control, not just before shipping but throughout the production process. During each step, multiple quality control checks are performed to ensure each part lasts for years to come. Our ASE-certified technicians are also available to assist with installation or diagnose your vehicle.

This HID Xenon Ballast comes with a lifetime warranty. If the ballast ever fails, simply contact us for a replacement. Save hundreds off dealer prices by replacing the part yourself. Experience the AA Ignition difference and get your headlights back in working order.

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