fog lights not working

baza52

As per the title the fog light do not work.
Car is a Mazda 3 on a 60 plate.

When turning the front fogs on they do not light up nor do I get a light on the dash to show they should be on.
If I turn the rear fogs on as well I see a light on the dash and the rear fog works ok.

In your opinions what's likely to be the obvious cause and what would you check first.

Both bulbs blown,
Fuse blown,
Wiring fault.

Only had the car less than a month so not sure which option to start with.

Thanks in advance.

scotsbob

Possible, although unlikely, that both bulbs would fail together. On that basis I would check the fuse first. If no success then replace one of the bulbs.

baza52

scotsbob wrote: »

Possible, although unlikely, that both bulbs would fail together. On that basis I would check the fuse first. If no success then replace one of the bulbs.

Thanks Scotsbob
I'm thinking its possible both bulbs could have blown as since I owned the car they have never worked. Its only recently I tried them.
Ill check the fuse first tho.

Joe_Horner

*** waits for all the "you don't need your front fogs anyway" posts ***

Seriously, if they've never worked since you had it there's a good chance it's the bulbs. They don't get checked for MOT and not having them doesn't make any practical difference probably 99.99% of the time in the UK unless you want them to emulate DRLs. So when the filaments fail from vibration no-one notices and they don't get changed.

baza52

if the bulbs had both failed would the light on the instrument cluster not work either or would it still show as being switched on?

Thanks Joe.

forgotmyname

Joe_Horner wrote: »

*** waits for all the "you don't need your front fogs anyway" posts ***

Seriously, if they've never worked since you had it there's a good chance it's the bulbs. They don't get checked for MOT and not having them doesn't make any practical difference probably 99.99% of the time in the UK unless you want them to emulate DRLs. So when the filaments fail from vibration no-one notices and they don't get changed.

Spoilsport...

I was going to put maybe the car knows its not foggy? But you ruined it

I need to spot new threads more quickly.

baza52

forgotmyname wrote: »

Spoilsport...

I was going to put maybe the car knows its not foggy? But you ruined it

I need to spot new threads more quickly.

I guess that's one way to get your post count up.
Who said it wasn't foggy.

xHannahx

baza52 wrote: »

if the bulbs had both failed would the light on the instrument cluster not work either or would it still show as being switched on?

Thanks Joe.

Does it have a light on the instrument cluster? Our car only has a light for the rears on the cluster despite having front fogs.

Google searching the fuse box diagram shows the front and rears on the Mazda 3 being on the same fuse which would eliminate a blown fuse, although it shows them having a relay for the fronts but not the rear.
Check the bulbs first. Take them out and inspect if they are blown by looking at the filament,

baza52

xHannahx wrote: »

Does it have a light on the instrument cluster? Our car only has a light for the rears on the cluster despite having front fogs.

Google searching the fuse box diagram shows the front and rears on the Mazda 3 being on the same fuse which would eliminate a blown fuse, although it shows them having a relay for the fronts but not the rear.
Check the bulbs first. Take them out and inspect if they are blown by looking at the filament,

Just checked the car manual and it does have a light in the cluster for the front fogs.

Thanks for the suggestion

wba31

baza52 wrote: »

I guess that's one way to get your post count up.
Who said it wasn't foggy.

who needs fog, we all know driving with sidelights and foglights on looks cool!

I dont think ive ever used front fogs on my car, but i feel after reading this i ought to check them, just in case...

bigjl

I would probably have a look at the switch itself first.