Dash blue full beam bulb...

[Bfstrachan 10]

Really struggling with this one! My car failed MOT on the full beam bulb. Couldn't solve so I sourced a set of clocks that I was assured had a working blue bulb. However, when I hooked it up there is no blue light on full beam! Getting frustrated with all this. Any suggestions please?

[Wullie 1]

They are polarity sensitive, one leg has a kink in it to help get them the right way round. You could compare the kink to the other bulbs in the strip. You could also use one of the other bulbs to check you are getting current and it's not the bulb that's at fault. I had a green bulb in mine for a while till found where I had put the blue one. (Put in a safe place where I would remember where it was) Kind of try and repeat till you get there.

[Bfstrachan 10]

They are polarity sensitive, one leg has a kink in it to help get them the right way round. You could compare the kink to the other bulbs in the strip. You could also use one of the other bulbs to check you are getting current and it's not the bulb that's at fault. I had a green bulb in mine for a while till found where I had put the blue one. (Put in a safe place where I would remember where it was) Kind of try and repeat till you get there.

 

Thanks for the pointers. I did dismantle my clocks, as you posted on my dash removal topic, I struggled with getting the beige bulb holder to come away. It seemed to be stuck to the blue plastic circuit part. Do you remove all bulbs before the beige part comes away or do you insert the bulb while the beige part is still on the clocks? Thanks!

[Wullie 1]

I reassembled the complete thing before refitting to the instrument panel, black part as well. Bulbs into beige part, clip on the black cover and then install onto the panel.

[Bfstrachan 10]

I think there must be differences between the bulb holders. My one had connectors that were connected to the holder and the blue plastic circuit part. When I tried to take the holder away, I ended up ripping the blue circuit plastic. I did manage to replace the bulb with a green one on a spare set of clocks - so job done!