In a 2007 BMW 328i E92, the bulb type you need depends on whether your headlights are halogen or Xenon HID. If you have halogen headlights, expect H7 for the low beam and H1 for high beam (with fog lights often H8 or H11). If your car has factory xenon headlights, the primary low-beam bulb is typically D2S (with D1S used on some early or alternate configurations). Always verify by checking the current bulb or the owner’s manual to ensure you order the correct type.
Identify your headlight configuration
Use these guidelines to determine which headlight setup your E92 uses, so you can buy the correct bulbs.
- Halogen headlights (no HID ballast): Low beam is typically an H7 bulb; high beam is commonly an H1 bulb. Front fog lights are usually H8 or H11 depending on trim and market.
Conclusion: Halogen E92s typically use H7 for the low beam and H1 for the high beam, with fog lights following the trim's specification.
Bulbs for HID/Xenon headlights
If your E92 has factory Xenon HID headlights with a ballast, you’ll usually need a xenon bulb for the low beam. The two common bulb types are D2S and D1S; the exact one depends on the ballast installed by BMW.
- D2S — Most common on 2006–2008 BMW Xenon headlights; used with the factory ballast.
- D1S — Used on some early or alternate HID configurations; verify which bulb your ballast requires.
Conclusion: For Xenon HID headlights, confirm whether your ballast requires D2S or D1S to avoid mismatches or compatibility problems. The high-beam function, if not xenon-specific, may use a standard halogen bulb depending on the headlight design.
How to verify the exact bulb you need
Check the bulb for markings, inspect the ballast label, consult the owner's manual, or contact a BMW dealer with your VIN to confirm the precise bulb type before purchasing replacements. If you’re replacing other lighting (like fog or cornering lights), those bulbs may differ by trim or market (commonly H8, H11, or similar).
Summary: The 2007 BMW 328i E92 requires different bulbs based on headlight type. Halogen setups use H7 low beam and H1 high beam (fog lights typically H8/H11). Xenon HID setups use D2S or D1S for the low-beam bulbs, depending on the ballast. Always verify with the manual or current bulb to ensure a proper fit.