The highest watt headlight bulb you can use in a 2000 Mazda 323 is 65 watts. Most vehicles use a 55 watt bulb.
Just open the engine hood, and look behind either headlight that is out, and remove the cover behind the headlight, should probably be a turning cover, turn cover counter clockwise to remove, then un-plug connection for bulb, and remove light bulb. Light bulb will probably be held in by 2 metal spring clips, that are hooked in, just un-hook springs to remove bulb.
9004
Halogen.
h 10 or 9005 bulb
H7
2006
Use socket
To replace the headlight bulb: 1. Remove the headlight door. 2. Remove the four screws that hold the headlight bulb in place. 3. Pull the headlight bulb out and unplug the wire harness. Reverse the process to install the new headlight bulb.
Replace headlight bulb only when blown.
You cannot replace the headlight bulb. You need to buy a new headlight unit.
The headlight bulb on a Volkswagen Polo can be removed by grabbing the back of the headlight bald and pushing forward and turning at the same time. The bulb will come out. Reverse the process to install the new headlight bulb.