Power the xenon arc in your headlights with the Standard Ignition High Intensity Discharge (HID) Lighting Ballast HID103. An HID ballast delivers the high-voltage ignition pulse that strikes the xenon arc and then regulates the electrical current that keeps the HID bulb lit. It installs as a direct-fit replacement for the 1997-2000 BMW 528I, 1997-2003 BMW 540I, 2000-2003 BMW M5, 2001-2003 BMW 525I, and 2001-2003 BMW 530I.
- DOT-certified: built to comply with Federal Motor Vehicle Safety Standards.
- Heavy-duty casing: encloses the electronics to help it hold up in service.
- OE-matched circuitry: internal circuitry follows the OE design.
- Plug-and-play: designed to install without reprogramming.
The module has two male blade terminals. Contents: one module. Quantity needed varies by application — the 1997-2000 528I uses two, while the other listed models use one, so order accordingly. Country of origin: Romania. Life cycle status: available only while supplies last.
Interchange: 631283731 · 63128373165 · 63128373166 · 631283871 · 63128387114 · HDB103 · HID703. Manufacturer part number HID103.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the HID103 ballast do?
It supplies the high-voltage ignition pulse that strikes the xenon arc, then regulates the current that keeps an HID headlight bulb lit.
Which vehicles does it fit?
It's a direct-fit replacement for the 1997-2000 BMW 528I, 1997-2003 540I, 2000-2003 M5, and 2001-2003 525I and 530I. See the Buyer's Guide tab to confirm your vehicle.
How many do I need?
The quantity varies by application — the 1997-2000 528I uses two, while the other listed models use one. Each listing supplies one module; order the number your vehicle requires.
Does it need reprogramming after installation?
No. It uses a plug-and-play design, so no reprogramming is required once it's installed.
What are signs this ballast may need replacing?
Flickering, dimming, or an HID headlight that fails to light or cuts out intermittently can be signs the ballast may need replacing. Diagnose the cause before replacing.
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