When to change your headlight bulbs
“Without a full set of functioning headlight bulbs you’re making night-time driving more difficult for yourself”
You need to change a bulb as soon as it blows. Without a full set of functioning headlight bulbs you’re making night-time driving more difficult for yourself and aren’t making your car as visible to oncoming drivers.
You also risk being pulled over by the police and face a possible fine, although you’ll usually be given a few days to replace the bulb (and prove you’ve done it) before facing further action.
All cars are slightly different, so if it is time to change your thermostat, use our before you begin checklist, and find your car for specific instructions.