For the 2005 Mazda Mazda3, the low-beam bulb depends on the headlight assembly: use H7 with halogen headlights or D2S with HID headlights. The high-beam bulb is 9005. Confirm whether the vehicle has halogen or HID headlights before ordering, since these low-beam bulbs are not interchangeable.
- Fog lights use H11 LED bulbs.
- Front turn signals, parking lights, and front side markers use 1157A or 2827 bulbs, depending on the applicable lamp position or configuration.
- Reverse lights use 7440 bulbs, while rear turn signals use 7440A.
- Brake and tail lights use 7443R, with a 921 bulb for the center stop light.
- Interior and auxiliary lighting includes DE3175 for the dome light and 2825 for the map, trunk, and license-plate lights.
Check the existing bulb and headlight type when replacing a lamp, especially for the low beams and the front signal positions.