Check out my blog for closeup pictures and explanations of the retainer clip:
http://megasafetyfirst.blogspot.com/p...
Many people have problems with getting the clip back into place. I hope this helps getting the job done more easily.
See how to replace the low beam light-bulb on a Mazda 3.
The whole process takes less than 5 minutes.
The hardest part is to get the retention clip off and back on.
The bulb I am using is a H7 55Watts.
Do not forget to never touch the glass part of the bulb. The finger will leave traces of oil behind, which will cause the bulb to burn out prematurely!