sasikals26

What box is this? initial i thought it should contain Cabin filter but it is not!
Whether this box should have any additional filter ? for me it looks like empty!! Not sure if i am missing any

jagtoes

Cabin filter is inside the car under the glove box. That screen in the picture is where the outside air enters the cabin.

sasikals26

Thanks for your response. I thought there should be some filter inside that box and now got clarified.

Actually got confused by below link!

jagtoes

Try this.

sasikals26

Yes, Thanks and now i am clear on it.

SMac770

Yeah, that Youtube vid is for B6 and B7 A4s as it mentions. In the US, model year 2008 products were B7 A4. My B8 A4 was built in August 2008 and originally sold in December 2008, but is a "US model year 2009 A4". So when seeing US content on "2008 A4", they may or may not be talking about the B8 generation A4.

apx apx

That space is for the "external cabin filter" for A4, A5, Q5 and Porsche Macan. Not installed in all markets.

https://youtu.be/1U63ApHRGBo

https://m.intl.taobao.com/detail/detail.html?id=546860943453&spm=a21wu.9600033.reco mmend.1&main_itemid=16913979773&go_item_id=5468609 43453&scm=1007.10766.103681.1002003000000001&pvid= 10e6f15b-77ce-4df4-95aa-277ed3bbae22&track_params=%7B"match_type"%3A"3_169 13979773_536_762_1443_3700_33_"%2C"pre_seller_id"% 3A"73196965"%7D

sasikals26

Okayy...! So is this necessary? However, i will replace the primary(under glove box) cabin filter on yearly maintenance.