Hi 

Today i was told that only one of my side break lights works and i dont know what has caused this as when i press turn on the lights the bulb still functions but the driver side break light wont work passenger side is fine as well as the top brake light 

 

any suggestions please help

It has two elements in it so that when you turn the lights on one of the elements lights up. If the other element has blown then when you press the brake peddle the second element obviously won't light up hence the bulb works as a light but not as a brake light. You require a new tail light bulb.

You simply need to have the blown light replaced, in your case it's the drivier's side.

All the best. :)

Its either a blown filament within the bulb meaning that only the 'side light' part of the brake light works, the other option is what I had where there was an issue with the contacts within the socket (which are spring loaded) and the contact at the bottom of the bulb. With my issue I found that if I braked the whole brake light went out - fixed by replacing it with a new bulb.

I would also suggest getting one of the universal bulb kits whilst you are at it - you should have H4 headlights so look for those kits, useful to keep in the car.

To remove the light unit you just need to undo the 2 torx screws on the inner edge of the light unit and then gently tug - there are 2 locating clips, just be careful you don't pull it too far as the bulbs are still connected in the back, twist the bulb holder to remove it from the unit.

I'm having a similar problem except I've changed the bulb and the brake light works when the side lights are off but when the side lights are on the drivers side brake light doesn't work?

If one tail light is brighter than the other you have managed to get the bulb in the wrong way round, the brake light will now be the dimmer tail light that's why you can't see it with the sidelights on.

Yep, wrong bulb or fitted the wrong way round or both

I checked to see if its the wrong way and still no luck. I switched the old bulb from the working side and put the new one in to see if it was the bulb but works fine. I put the old bulb in from the working side in non-working one and still doesn't work? Not sure now?