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How to change a Mazda 3 headlight bulb?
Check in your handbook what globes your car uses and you should change both sides at the same time.
Open the bonnet and secure it with the prop. Turn the wheel of the car so it is pointing in, giving you better access to the back of the headlight you need to work on. Using a trim removal tool pop the centre out of the three plastic fasteners holding the inner guard liner to the car. Once the centre is popped up, pull the fastener out. Twist the bulb assembly anticlockwise, then push the tab on the wiring plug in to unplug the wiring connector. Wearing gloves, remove the new bulb from the packet and plug it into the wiring connector ensuring you don't touch the glass with your bare hands. Twist the headlight back into place in the headlight, refit the inner guard liner and plugs, and you're done.
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