[21m340]

I recently washed my 21 M340 and my left headlight fogged up but i took it to service and told me nothing was wrong is this normal?

[Weaselboy]

No way that is normal.

[Assassin]

+1...... a tiny bit of light fogging sometimes in the bottom 1/4 inch of the light nothing more. Thats a clear water ingress and needs attention.

[21m340]

Originally Posted by Assassin

+1...... a tiny bit of light fogging sometimes in the bottom 1/4 inch of the light nothing more. Thats a clear water ingress and needs attention.

That’s what i thought but when i took it for service they said it was normal and nothing was wrong

[AM340iMiami]

You are not the first person on this forum to have this issue. I would definitely push back at them.

[zazzau]

Were there droplets or just condensation? Can't tell from the photos. Did the condensation dry off on its own after a while? If not, perhaps try a different dealership.

[21m340]

Originally Posted by zazzau

Were there droplets or just condensation? Can't tell from the photos. Did the condensation dry off on its own after a while? If not, perhaps try a different dealership.

it was condensation and it did dry up eventually.

[M340I///M]

Originally Posted by 21m340

it was condensation and it did dry up eventually.

Service department will say anything to avoid warranty work. This isn’t normal. Does not happen often ( usually see this on after aftermarket tails or head lamps from being poorly sealed).

You can find good information on the website about this and then go speak to your dealership

A common cause of minor condensation is a blocked vent. This could be caused by debris, spider webs or dust.

https://www.carparts.com/blog/moisture-in-headlight/

If you notice condensation often, it could be a sign that the seals or gaskets protecting the inside of your headlights from moisture are compromised.
Jun 26, 2020
Remove Condensation From from Headlights - source Toyota of Kingsport Blog

Source Toyota of Kingsport
The warmth of the bulbs paired with the cold weather can create the perfect environment for condensation, leading to the formation of water droplets inside …


Hope this helps a little

[zazzau]

Originally Posted by 21m340

it was condensation and it did dry up eventually.

Ref manual. The level of condensation in your car seem a bit too much though. Are you able to reproduce the problem consistently?

[TheKandyman]

I have seen this once on my car. It went away with some driving. It appears to be normal for condensation to form under certain conditions. It is only a problem if it does not go away.

***Excerpt from my 2022 G26 manual.

Headlight glass
The inside of the headlight glass can fog up in
cool or humid weather. When driving with the
lights switched on, the condensation evaporates
after a short time. The headlight glass does not
need to be changed.
If despite driving with the headlights switched on,
increasing humidity forms, for instance water
droplets in the light, have the headlights
checked.

[TheKandyman]

Ah... looks like zazzau beat me to it