Fog light on when breaking.

[guysy]

Did a search and thought the solution was to clean the rear light clubsters of any rust.

All connectors clean as a whistle, But sanded bulb bottoms lightly and cleaned the prongs.

This hasnt solved the problem.

Ive also read the earth can be bad? Where can i find this please?

Or is there any other solutions?

 

[Da]

Earth is behind the rear cluster, inside the boot from memory. This is generally the cause, it will be loose or corroded causing a bad connection.

 

[guysy]

Cheers, Is there one for each light? Where abouts can it be found?

 

[Da]

It's inside the boot, behind the cluster. I can't remember if there's one or two in total but it/they are just under the trim/carpet on the slam panel for the tailgate.

 

[caister]

Mine was a loose bulb filament in the rear cluster that was still connected to one post and then shorting out the other under braking. I'm sure its quite rare but still possible

 

[guysy]

Just took both earth points apart, Cleaned the heads with a file to bare metal and the wire, Still doing it.

Run out of options now havent I ?

 

[guysy]

Is there any other earths i can try, Or other solutions?

 

[dan172mak]

mine was exactly the same, i unplugged the rear lights, unclipped the case on the plug to the lights, and with a small screwdriver pressed down on the metal pins pushing them closer together so when you plug the light back in its a tighter fitting on the plug if you know what i mean.

 

[guysy]

You mean on the dual fillament bulb? Theres only one dual fillament for the brake light isnt there?

Yeah i will have another crack at cleaning them tomorrow.

 

[Aaron182.]

does the bulb light up? or is it just the dash light ?

 

[guysy]

Dont think any of the actual fogs are lighting up, Had a check. Just a common fault i think.

Im going to give the earth another clean tomorrow and also the contacts. See what happens.

 

[mtclio172]

mine done this and went away by its self

 

[reiddy172]

i had this and i just 'made' a new earth to get a better one =]

 

[guysy]

I was thinking this, However leaving the original eaths in place, And just adding a second earth and split it between the 2 originals.

However the problem only happens when wet. And its not that annoying, Just thought id try and rectify it.

 

[lee131]

poor earth and moisure ingress are common on many cars check both, clean all terminals and wd40 them to fck

 

[guysy]

^ Cheers. WD40'ing them worked.