Front fog light condensation

After all the wet weather of the last few weeks I notice one of the fogs is misted up. I thought it might clear on its own as the car is garaged and gets very little use.
It hasn't, so has anybody got any ideas and will an incompetant bofoon like myself be able to tackle the job?

Could be exactly because of the unseasonably wet weather and it's not getting chance to dry out!

Does it clear if you leave the lights on for 15 mins?

I've got the same problem lately with me N/S headlight

I think its' all this wet weather,try using them continuously for a
while ,hopefully the heat from the bulbs should dry the lamp out.
I seem to remember a thread on here,I think it was from Dougie
had the same problem and had to seal around the lens,but am not
sure.

Just my look to get a pull for using foglights when its not foggy.
I will leave them on in garage and see if it cures it.

Originally Posted by mickeybee

Just my luck to get a pull for using foglights when its not foggy.

You can be glad you're not trying to clear condensation from the indicators .

Take the cover off, dry it all out with a hair dryer, lube the seal up with a tiny splodge of grease and stick it all back together.

If the seal is ok and you leave the lights on to dry it out, the water will evaporate, float about in the lamp and condense again when it gets cold.

If the seal is nackered, you're going to get water in there no matter what you do.

Depends on whether it sis supposed to be a sealed unit!

The Valeo lamps we use at work are not water tight but have a breather hole to allow for air expansion when the lamp is hot. This has the side effect of being able to draw damp/cold air into the lamp which can then condense, but it can then escape again when the lamp is hot.

The Peugeot spec for foglamps states that any condensation should clear after a certain time with the lamp on.

Unfortunately the worst thing you can do if you are having problems with fogging in lamps is to keep the car in a garage. What happens is that as soon as your car leaves the nice warm garage, all that nice warm moist air (it will be moist as warm air will hold more moisture than cold) condenses against the suddenly cold lens.
The only effective way of removing moisture from a lamp, that doesn't clear when the lamp is on, is as was mentioned by Dibby. Remove the backcap and dry the lamp out with a hairdryer, however allow the lamp to thoroughly cool before replacing the backcap.
Trying to make a headlamp/foglamp air/water tight is not a good idea. The lamps need to be able to breathe to allow for the pressure differences due to heat. This is usually accomplished with a breather cap. Some of these are as simple as a little rubber tube facing downwards, some are like little tophat features with some sponge inside, and nowadays we are starting to use Goretex patches.
One thing to check if you are getting water into any of your lamps is that the backcap is seated correctly and that the o-ring is in good condition, and that and breather caps have not fallen off.
Hope this helps

Sorry spit read your post too late. I did the old leave them on for twenty minutes trick and it worked.
I think water got in because I drove through standing water that must have totally submerged the lamp. Lucky that was my only problem, I know two people who wrote cars off that day driving through deep water.

Yeah dunking them in water will do that

As Vivian said I sorted mine, No problems since and that includes a drive from Dover to Stirling yesterday up the M20/M25/M1/M6 River!!!!

http://www.alfaowner.com/Forum/alfa-...fog-light.html (Fog light)

Dover to Stirling!

Day trip was it?

Annual holiday to France - Drove to Dover get ferry to Calais then spent 3 weeks in France, then back. 2600 mile trip - 166 loved it!

Bit more than a day trip then.