AFE Filter - sprayed a dry filter

T Mac · 11-10-2012, 08:32 PM

On week 2 of ownership of my '04 325i. Previous owner had the AFE intake installed and I have used K&N filters on Injen intakes in some previous rides. Those needed to be cleaned and recharged with oil spray from time to time. My BMW filter was dirty, so I thought I'd clean it today. Got it looking clean, then sprayed it with the K&N cleaner. But now I found out this was a dry AFE setup.

Anyone know if this means I have to scrap this filter and order another?

Thanks.

jared_wiesner · 11-10-2012, 09:03 PM

I would just to be safe, dry filters are often made of a paper or other fibrous element that will turn to a mush/get denser and harden and loose its ability to trap dirt or flow air after its been oiled or even gotten very wet. I would just get another filter at this point rather than mess with it.

T Mac · 11-10-2012, 09:27 PM

That's the way it looks from what I am reading more now. $75 to replace the filter. Crap.

T Mac · 11-11-2012, 08:37 PM

Update: turns out it was not a dry filter and should be oiled. I just used K&N spray instead of AFE oil.

jared_wiesner · 11-11-2012, 10:58 PM

Then your all set, good to hear

11-10-2012, 08:32 PM	#1
T Mac Registered User Join Date: Oct 2012 Location: central Illinois Posts: 11 My Ride: 325i View My Garage	AFE Filter - sprayed a dry filter On week 2 of ownership of my '04 325i. Previous owner had the AFE intake installed and I have used K&N filters on Injen intakes in some previous rides. Those needed to be cleaned and recharged with oil spray from time to time. My BMW filter was dirty, so I thought I'd clean it today. Got it looking clean, then sprayed it with the K&N cleaner. But now I found out this was a dry AFE setup. Anyone know if this means I have to scrap this filter and order another? Thanks. Last edited by T Mac; 11-10-2012 at 08:58 PM.

11-10-2012, 09:03 PM	#2
jared_wiesner Registered User Join Date: Aug 2009 Location: Ontario Canada Posts: 592 My Ride: 1999 328i View My Garage	I would just to be safe, dry filters are often made of a paper or other fibrous element that will turn to a mush/get denser and harden and loose its ability to trap dirt or flow air after its been oiled or even gotten very wet. I would just get another filter at this point rather than mess with it. __________________ Check out my band - The Marked 1999 BMW 328i (Daily Driver) - m54b30 intake manifold, ebay headers, Rebirth Motorsports CAI, Rogue Engineering underive pulleys, Epic Motorsports Software, Custom 3 inch exhaust with Burns Merge, Schrick 264/248 Cams 1967 Buick Skylark - 430 Buick Big Block Swap.

11-11-2012, 10:58 PM	#5
jared_wiesner Registered User Join Date: Aug 2009 Location: Ontario Canada Posts: 592 My Ride: 1999 328i View My Garage	Then your all set, good to hear __________________ Check out my band - The Marked 1999 BMW 328i (Daily Driver) - m54b30 intake manifold, ebay headers, Rebirth Motorsports CAI, Rogue Engineering underive pulleys, Epic Motorsports Software, Custom 3 inch exhaust with Burns Merge, Schrick 264/248 Cams 1967 Buick Skylark - 430 Buick Big Block Swap.

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11-10-2012, 09:27 PM	#3
T Mac Registered User Join Date: Oct 2012 Location: central Illinois Posts: 11 My Ride: 325i View My Garage	That's the way it looks from what I am reading more now. $75 to replace the filter. Crap.

11-11-2012, 08:37 PM	#4
T Mac Registered User Join Date: Oct 2012 Location: central Illinois Posts: 11 My Ride: 325i View My Garage	Update: turns out it was not a dry filter and should be oiled. I just used K&N spray instead of AFE oil.