Audi A8/S8 HID / Xenon Headlight Ballast Left, Right 4E0907813
OEM Part #: 4E0-907-813 (4E0907813)
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The HID/Xenon headlight ballast, OEM part number 4E0907813, serves as a vital control module for the low and high beam lighting systems in select Audi models. Located within the engine compartment, this component regulates the voltage supplied to the HID lamps, ensuring optimal illumination during nighttime driving. Common issues requiring replacement include flickering lights, complete failure of the headlight, or error messages on the dashboard indicating headlight malfunctions. This ballast is compatible with the 2004-2007 Audi A8 Quattro and S8 models equipped with 4.2L V8 and 6.0L W12 engines. Alternate term: power module. Other related part numbers are 4E0941471, N10529701, and 4E0941159A.
Specifications
| Fits Vehicle Model | A8, S8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4E0-907-813 (4E0907813) |
| Side | Left, Right |
| Category | Lighting |
Compatible Vehicles
Fits 11 vehicle configurations across 1 make, 2004-2007.
View all 11 vehicle configurations — 3 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2004 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2005 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 030000 |
| 2005 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 030000 |
| 2005 | Audi | A8 | Quattro L Sedan | 6.0L W12 | For Vehicles Where Last 6 Digits of VIN Number are Less Than 030000 |
| 2006 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2006 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2006 | Audi | A8 | Quattro L Sedan | 6.0L W12 | |
| 2007 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2007 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2007 | Audi | A8 | Quattro L Sedan | 6.0L W12 | |
| 2007 | Audi | S8 | Sedan | 5.2L V10 |