Aygo head lamp fogged up

[Chriss27]

Aygo 2012 and one of the plastic casings that holds headlight has fogged up and damp on inside. Is this an issue or will it correct in warmer weather?

[kisbell]

You probably have a crack in the light housing. Or the rubber grommet on the back covering the bulb is missing or not on properly.

[G6-R]

take the bulb out and put a hairdryer for the hole and switch it on when its dry put the bulb back and the rubber

[rajivrattna]

12 hours ago, G6-R said:

take the bulb out and put a hairdryer for the hole and switch it on when its dry put the bulb back and the rubber

I have the same problem in one of the headlight in Aygo and all temporary measures (like hair dryer use, better ventilation on a dry day by leaving the rubber grommet off ) are of no use in the long run. Moisture always returns. There is a problem with water leak or the ventilation holes are blocked in the head light and getting it right by fixing them is the only way to go.

[G6-R]

or take the hole unit out and drill 2 or 3 little holes on the backside of the unit on the underside to ventilated more

[Chriss27]

If I do nothing is it an mot failure?