3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
BimmerWerkz.com is the premier BMW Forum on the internet. Registered Users do not see the above ads.
Can anyone tell me what the square, plastic, vent-like piece is on the inside roof of the sedan? used It is on the centerline, in between the front and rear seats. I thought it was the cabin air filter, but I just found out that the cabin filter is in the back of the engine compartment.
Thanks.
That is where part of your car alarm is, if you have one. It is a motion sensor. If you don't have an alarm it's just there for your to install one. So you are most likely pre wired.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
used It is on the centerline, in between the front and rear seats. I thought it was the cabin air filter, but I just found out that the cabin filter is in the back of the engine compartment.
Linear Mode
