The typical setup on most BMW E46s uses an H7 bulb for the low beam and a high-beam bulb of HB3 (9005). Some variants or aftermarket headlights may use H1 for the high beam. Read on for specifics by headlight type and model years.
Halogen headlight bulb sizes
Most E46 models with standard halogen headlights use a two-bulb arrangement: one for low beam and one for high beam. The sizes listed below reflect the common configurations found on many E46s.
- Low beam: H7 (55W, 12V)
- High beam: HB3 (9005) (65W, 12V)
Note: In some variants, aftermarket or European-spec headlights may use H1 for the high beam. Always verify by checking the bulb currently installed or consulting your owner’s manual or the BMW parts catalog for your VIN.
How to confirm your bulb size
To ensure you buy the correct bulb, verify the exact size on your specific headlight unit before purchasing. The following steps help confirm the correct bulb type:
- Inspect the bulb currently in the headlight and read any size markings on the base (for example H7, 9005/HB3, or H1).
- Check your owner's manual or the BMW parts catalog for your VIN to confirm the bulb type.
- If needed, carefully remove the headlight bulb to physically compare with standard bulb shapes from a trusted parts retailer.
Verifying the exact bulb size prevents fitment issues and ensures proper beam pattern and brightness.
Xenon/Bi-Xenon and other headlight options
BMW E46s equipped with factory Xenon headlights use HID bulbs rather than the standard halogen bulbs. The common HID bulb sizes are D1S or D2S, depending on the year and option package, and these require compatible ballasts and wiring. If your car has Xenon headlights, you won’t be using H7/H1/9005 bulbs for the main beam.
Summary
For most E46 halogen configurations, use H7 for the low beam and HB3 (9005) for the high beam. Some variants or aftermarket headlights may use H1 for the high beam, so always verify with your specific headlight unit or VIN-based BMW documentation. If your E46 has factory HID headlights, the bulbs are D1S or D2S, not halogen bulb sizes. Confirm the exact bulb type by checking the bulb itself, the owner’s manual, or the BMW parts catalog for your vehicle.