[BMWGuySweden]

Have an 2018 m40i. Just yesterday I noticed that the front grill is open all the time. It's still cold here in Sweden so it can't be due to hot weather. Has someone else had a similar problem?

[Jcbmally]

I was under the impression the grills close when on the motorway/highway so they are there for improved mpg etc. They are closed at start up and do open but I don't think they stay open all the time.

[BMWGuySweden]

Originally Posted by Jcbmally

I was under the impression the grills close when on the motorway/highway so they are there for improved mpg etc. They are closed at start up and do open but I don't think they stay open all the time.

Mine are open now when car has been off from last night

[Speedbird1]

Had that happen to me once, last winter. I came down to find car in morning with grills open - I noticed it straight away because I'd never seen them open before. Used car as normal and no errors flagged up and hasn't happened since in 8 months, so I guessed it just went to sleep with the grills still open and they closed as soon as I restarted the car.

[BMWGuySweden]

Originally Posted by Speedbird1

Had that happen to me once, last winter. I came down to find car in morning with grills open - I noticed it straight away because I'd never seen them open before. Used car as normal and no errors flagged up and hasn't happened since in 8 months, so I guessed it just went to sleep with the grills still open and they closed as soon as I restarted the car.

Thanks will test and update here

[Tchgrif]

recently my front grills stayed open but it threw a code and they had to replace a section.

[garz747]

Personally ive yet to see the slats open! It has only been up to 8c here since car was purchased but when do they open?

[Jeepersjoey]

Mine was stuck open as well. It threw a code so they replaced when I went in for the next service. I did have to ride with that check engine light on for a month though.

I believe yours open is an issue. Let's see if it throws a code.

Paul