Anyone changed their cabin air filter ?

[nywang]

Due to the terrible air quality in Bay Area. I decided to chang my cabin air filter early
at about 10k miles.
I thought the air filter type would be the same as A4 since S4 shares most of the parts with A4.
So I bought one from internet which claimed to fit B9 A4, and it fit for me perfectly.

However, after doing another round of research, I found the following on ECS tuning:
This is for B9 S4:(Looks exactly the same as the OEM one, having one yellow side)
https://www.ecstuning.com/b-genuine-...er/4m0819439b/

This is for B9 A4:
https://www.ecstuning.com/b-mann-par...m0819439a~man/

It turns out that A4 and S4 use different cabin filter ?
4M0819439A vs 4M0819439B

I think they have the same size but perhaps use different materials ?
Does anyone know the actual difference ?

[jygesq]

Call ECS . Same number except A or B . Possible different manufacturers? One is " Mann " as manufacturer.

[tliu91]

how do u change the cabin filter? how did yours look after 10k. im also in the bay

[nywang]

Call ECS . Same number except A or B . Possible different manufacturers? One is " Mann " as manufacturer.

I think both are Mann since the OEM one I took off was also Mann.
I think I just found the difference:
The yellow filter is actually called FreciousPlus air filter by Mann. Looks like it does use some more premium material:
https://www.frecious-plus.com/en

[nywang]

how do u change the cabin filter? how did yours look after 10k. im also in the bay

There is still very limited information about B9 A4/S4 online.
But I found the cabin air filter change process is pretty similar to B8.
You can find B8 cabin air filter videos all around Youtube, like this one:
https://www.youtube.com/watch?v=b0GrzVkOgSw

The only difference I found is for B9 the plastic box has a few more clips, which make it harder to remove.

10k in bay area the filter doesn't look very good:IMG_20180903_180507.jpg

[mr.memeyogirl]

Anyone know how to attach a PDF on here? lol. I have a PDF guide on removing the Cabin Air Filter on the A4/S4, which should be the same. I don't see an option to attach PDFs or maybe I'm missing something

[vdubtx]

Anyone know how to attach a PDF on here? lol. I have a PDF guide on removing the Cabin Air Filter on the A4/S4, which should be the same. I don't see an option to attach PDFs or maybe I'm missing something

I'll just link your post of the pdf file. I don't think AZ allows attachments.

mr.memeyogirl B9 S4 Cabin Filter pdf file link

[mr.memeyogirl]

I'll just link your post of the pdf file. I don't think AZ allows attachments.

mr.memeyogirl B9 S4 Cabin Filter pdf file link

Thank you kind sir