Water vapor on the back of the trunk next to the MG logo, after a night spent outdoors.

[ajorge13]

Why it can happen that if you leave the car outside even, at a moderate temperature of 15°C, the next day it will have water vapor on it?

 

[jamakr4]

Why it can happen that if you leave the car outside even, at a moderate temperature of 15°C, the next day it will have water vapor on it?

Very common problem - I think every MG4 has this issue at some point (depending on the parking situation and weather e.g. humidity). There are also plenty of posts on here - just look for "fogged rear lights MG4" or comparable.

The rear lights aren't completely sealed because this may lead to it cracking when exposed to different altitudes, weather conditions etc.. because of pressure building up in it. So the rear light can get rid of it but it takes a bit of time and the right weather.

Mine is always parked outside with the rear end in the sun so at moderate temperatures it looks like this:

 

[ajorge13]

Very common problem - I think every MG4 has this issue at some point (depending on the parking situation and weather e.g. humidity). There are also plenty of posts on here - just look for "fogged rear lights MG4" or comparable.

The rear lights aren't completely sealed because this may lead to it cracking when exposed to different altitudes, weather conditions etc.. because of pressure building up in it. So the rear light can get rid of it but it takes a bit of time and the right weather.

Mine is always parked outside with the rear end in the sun so at moderate temperatures it looks like this:

Yes, that's correct. Thank you for explaining. There don't seem to be any major problems.