Power the xenon headlamp arc and keep your HID lighting system firing with the Standard Ignition High Intensity Discharge (HID) Lighting Ballast (MPN HID100). This ballast steps up and regulates voltage to strike and sustain the HID bulb's arc, and it drops in as a direct-fit replacement for the 2006-2008 Audi A6, 2006-2010 Audi A6 Quattro, 2005-2010 Audi A8 Quattro, 2007-2010 Audi S6, and 2007-2010 Audi S8 (all engines).
- DOT-certified: built to comply with Federal Motor Vehicle Safety Standards.
- Heavy-duty casings: rugged housing around the electronics for durability.
- OE-matched circuitry: internal circuitry follows the OE design to support proper performance.
- Plug-and-play: designed to install without reprogramming.
If a failed ballast is the cause of a dim, flickering, or dead HID headlight, this unit replaces it; diagnose the bulb and wiring first, since those can produce the same symptoms. Country of origin: Romania.
Interchange: 4E0907476 · HDB100
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this HID ballast do?
It steps up and regulates voltage to strike and sustain the xenon arc in an HID headlamp, keeping the HID lighting system firing.
Which vehicles does the HID100 fit?
It's a direct-fit replacement for the 2006-2008 Audi A6, 2006-2010 A6 Quattro, 2005-2010 A8 Quattro, 2007-2010 S6, and 2007-2010 S8 (all engines).
What numbers does this ballast interchange with?
It cross-references 4E0907476, HDB100, and HID700. Its own manufacturer part number is HID100.
Does installation require reprogramming?
No. It uses a plug-and-play design intended to install without reprogramming.
Could a dim or flickering headlight be something other than the ballast?
Yes. A dim, flickering, or dead HID lamp can also stem from the bulb or wiring, so diagnose the cause before replacing the ballast.
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