[Ryan_Tran]

Hi guys,
Could someone please let me know what is the use of the vacuum hose hook to the air filter housing ?
I did a service at BMW dealer and today I found that they forgot to plug it in.
I am pretty sure because I did my oil change just right before that and there is no chance of this getting lose after just few days.
Have a nice day.

[DG330]

Originally Posted by Ryan_Tran

Hi guys,
Could someone please let me know what is the use of the vacuum hose hook to the air filter housing ?
I did a service at BMW dealer and today I found that they forgot to plug it in.
I am pretty sure because I did my oil change just right before that and there is no chance of this getting lose after just few days.
Have a nice day.

Picture of the vacuum line will help and the model of your engine?

[Billfitz]

Look it up on the parts diagram at http://www.realoem.com/bmw/enUS/

[Ryan_Tran]

Sorry guys, i forgot to upload the pic.
My concern is: i have done approx 500 miles since the service was done. I am not sure if it could create any problem if the hose is not connected to the air filter, probably dirty air come to crankshaft.