Rear Fog Light Bulb

Rear fog lamps are vibrant red lights found at the back of a vehicle, but they are only used when visibility drops below approximately 100 metres. Unique to other car bulbs, rear fog lights are designed to help other drivers ñ they inform those behind you when your vehicle is stopping or slowing to prevent rear-end collisions.

Rear fog lights are essential for preserving the safety of all road users. In times of poor road conditions, i.e., fog or heavy mist, rear fog bulbs emit a much brighter red light compared to standard taillights to enhance the visibility of your vehicle. This gives other drivers more time to react, lowering the chances of a collision. By carrying out a rear fog light replacement, youíre ensuring that the driver and your passengers experience the safest journey possible, even when poor weather arrives. In the UK, you must have working rear fog lights on your vehicle, or youíll fail your next MOT. However, you must not use them unless visibility drops below around 100 metres, otherwise you may dazzle other drivers.

When it comes to selecting the correct rear fog lamps, you should always consult your ownerís manual, which should specify the fitment type required. Otherwise, your old rear fog light bulb will have a code on the bulb base that you can match to your new bulb. Take advantage of our handy car bulb finder tool, where you enter your registration number to unlock a personalised list of rear fog light bulbs. We also offer a car bulb buyer's guide to make the process as smooth as possible and to keep our customers informed.

The first step of knowing how to change your rear fog light bulb is to locate where your fog light assembly is ñ this information can be found in your vehicle handbook. Remove the bulb holder by turning it anticlockwise and pulling it out of the housing. You can now swap the rear fog light bulb and reassemble the housing in reverse order. Make sure to test your rear fog light to confirm that it correctly illuminates and the fog light indicator on your dashboard lights up.
When carrying out a rear fog light replacement, be sure to let all the elements cool before carrying it out. Otherwise, you may burn yourself. You should use gloves to prevent skin oils from contaminating the bulb, causing hotspots, and reducing its longevity. You must ensure your car bulbs are correctly aligned to prevent damage to the vehicle or dazzling other drivers. If you want the reassurance of knowing that a professional has properly fitted your rear fog light lamps, take advantage of our car bulb fitting service at your local Halfords store today.