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Replace engine air filter after 12K miles?

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Old 08-18-2019, 02:47 PM
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96redLT4
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Default Replace engine air filter after 12K miles?

My car is a "16 GTS up for the yearly service. Replacing the air filters ups the service charge from $300 to $1100. I recall reading a thread here, I think from LexVan, saying he changed the filters at higher miles and they were really clean. I hate messing with stuff that doesn't need to be done! Thoughts?

Jim
Old 08-18-2019, 03:09 PM
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LexVan
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It doesn't cost an additional $800 to change the engine air filters. Are they quoting a 40K/4year service with new plugs?

Mine were done at about 43,000 miles. They were dirty but nothing crazy. Pictures are in my "40K Service" thread.

Pictures here:

https://rennlist.com/forums/991/1000...completed.html

Last edited by LexVan; 08-18-2019 at 04:08 PM.
Old 08-18-2019, 03:10 PM
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JW911
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Air filters are due every 40k miles! Depending on when your car rolled off the assembly line you might be at the 4 year mark which is the stated timeline for replacement regardless of miles. But air filters don't get dirty based on time. You filters will be mighty clean at 12k miles. Your decision if you want to abide by the time equation or follow the mileage.
Old 08-18-2019, 03:15 PM
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eagle1960
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Absolutely no need unless you drive daily in heavy dust or dirt of some kind. Under normal service there's no need to change until you reach the mileage spec. They don't get dirty unless the engine is running.
Old 08-18-2019, 04:18 PM
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96redLT4
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Originally Posted by LexVan
It doesn't cost an additional $800 to change the engine air filters. Are they quoting a 40K/4year service with new plugs?

Mine were done at about 43,000 miles. They were dirty but nothing crazy. Pictures are in my "40K Service" thread.
I was hoping you would see this and chime in! I think the bumper off to change the engine air filter is what accounts for the cost. Thanks for the input guys. I have a really good local indy so I don't usually drive to my dealer but my car is right at 4 yrs old and I need these little plastic pieces from the rear child seat anchors that they owe me from yrs ago. I only want to replace stuff based on need not chronologic age. On my old 997, the guy I sold my car to finally replaced the spark plugs at about 30K miles, but at 10 yrs of age, and i recall him saying they looked absolutely fine.

A couple of other funny dealership tidbits. When I initially called to make an appt I was told 'we don't schedule Fri appts anymore but like to use it as a 'catch up' day. WTF!? Also squeaks and rattles are only covered for 2 yrs by the new car warranty

J
Old 08-18-2019, 04:34 PM
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I wouldn't replace them. If I was buying a car and the air filters were not done based on age since they were not dirty, I would not care. Now if someone wasn't doing yearly oil changes, that I would have a problem with.
Old 08-18-2019, 05:04 PM
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911mhawk
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I wouldn't bother until you have more miles and do the serpentine belt at the same time because at 4k miles a year it will get dry and brittle before it reaches spec'd miles.
May want to do plugs then too, some worry about them seizing in the head.
Or, trade me your 16 GTS for my fresh plugs, serpentine, all filters, and brake fluid in my 2012.5s and you won't have to mess with anything
Old 08-18-2019, 07:13 PM
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Bemo
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See attached photos as a reference. I drive a '15 GTS, only in dry sunny weather, as a reference.
I'd say the air filter was worth it but I couldn't tell the difference between the new/old cabin filter.

YMMV
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Old 08-18-2019, 08:41 PM
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NCheok
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Originally Posted by Bemo
I drive a '15 GTS, only in dry sunny weather, as a reference.
I'd say the air filter was worth it but I couldn't tell the difference between the new/old cabin filter.
Pretty clean still, if you ask me.
Old 08-18-2019, 11:17 PM
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drcollie
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I did all my filters, air filter and two cabin filters, at 24K miles. The engine air filter was dirty enough that I'm glad I changed it. The two pollen filters didn't have much contamination.

You can buy OEM engine air filters for $ 39 each (you need two) plus shipping. They are actually not hard at all to install, just a lot of screws to take out on the bumper cover. Doesn't require a trained mechanic or special tools. Will take you about an hour or so.

Here's a photo of my car with the new filters next to the old, and yes, I have a cheater 1/4" air ratchet which makes taking all those little screws out go really fast. But that's not a tool you have to have to do this minor job.



Old 08-19-2019, 01:59 AM
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96redLT4
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^^ Great picture and a satisfying 'do it yourself'
Old 08-19-2019, 02:06 AM
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96redLT4
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Went through the old posts as detailed above. Thanks RL for saving me $800 hard earned bucks! LOF only it is. My rear bumper will remain unmolested for at least another 10K miles!

J
Old 08-21-2019, 06:22 PM
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Originally Posted by 96redLT4
My car is a "16 GTS up for the yearly service. Replacing the air filters ups the service charge from $300 to $1100. I recall reading a thread here, I think from LexVan, saying he changed the filters at higher miles and they were really clean. I hate messing with stuff that doesn't need to be done! Thoughts?

Jim
They are charging over $700 to pull the rear bumper cover off and put it back on (pair of filters is $80....less for the dealer). THAT IS HIGHWAY ROBBERY!! I can take mine off in 10 minutes or less now that I know what I'm doing (took almost 20 minutes the first time I did it). A competent Porsche mechanic can swap out your engine air filters in less than 30 minutes. That's the equivalent of $1400/hour in labor.

Like others have said, this is an easy DIY. Watch the couple of videos out there on YouTube of guys removing the rear bumper and then go for it on your own.
Old 08-21-2019, 11:06 PM
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I'll just add a thought here. I used to work as an engineer in air intake systems for Fram, so I have a little background on this. Not only do you not need to change filters at that mileage, you shouldn't. Filter elements increase in filtration efficiency as they load up, with only minor loss in restriction. We did a program with Chrysler years ago where we supplied OE filters with gray paper to hide the dirt a bit and discourage people from changing filters too soon. So, relax!



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