: STS Cabin Air Filter Change



Zig28
05-18-09, 09:14 AM
Hi all:
Looks like this topic still has some questions from STS owners.

I had my 2006 STS4 in for a tire rotation at 28k and asked the tech to change the engine air filter and cabin air filter. The tech can't find the cabin air filter and calls my dealer. My dealer tells him the STS doesn't have a cabin air filter!

I get the car home and did some poking around, the owner's manual isn't very clear, but the cabin air filter is pretty obvious once you find it.

The vent cover just under the windshield on the passenger side comes off with three 9 mm hex screws. Pull it off and underneath, in back of the battery, is a plastic cabin air filter box. It is removed by pulling sideways on both sides to release the plastic catches.

The cabin air filter slides in vertically. Apparently, you can buy either a plain paper or activated charcoal/paper, which removes odors coming in. Several companies make them, here's a link to Car Stuff (http://www.car-stuff.com/store/?N=9841+4294963605+1586+11921+9172), one vendor which carries several different brands and types.

Here are photos. It's easy to do. Hope this helps somebody!:

GarryW
05-18-09, 10:32 AM
Nice posting. I'm sure the dealer installed cost on this one ain't cheap.

Dadollac1
05-18-09, 10:59 AM
The Cadillac stealer oops I mean dealer quoted me a price of $100 to replace the cabin air filter. What a ripoff.:canttalk: All it takes is 5 minutes to change and a good carbon filter can be had for $30.Shame on them!!!

bbshriver
06-10-09, 11:09 AM
Did this last night... PITA!!
Hopefully I got it in right, seems to be fitted up now.

next2pool
06-10-09, 02:14 PM
Did this last night... PITA!!
Hopefully I got it in right, seems to be fitted up now.

Did mine about a month ago--sure is a Mickey Mouse setup--it's very hard to tell if it's in there correctly or not.

amgqmp1
06-10-09, 07:25 PM
I'll toss in my negative commentary on the engineering too.

Both the engine air filter and the cabin air filter are pretty lousy to change. It's still worth spending the 10 minutes each to do it @ home. :cloud9:

VZDog
09-29-11, 10:03 AM
Thanks! - just book marking this thread for future reference. Doesn't this forum have the feature where you can e-mail yourself a copy of a post?

MacMuse
09-29-11, 02:13 PM
Sure do, just hit the 'Cadillac Discussion Tools' menu immediately above the first post on the page.

Looks like this --> 81052

Teammuir1
09-29-11, 08:51 PM
sure would have been nice to have a part number for the filter you bought... or even the charcole filter part number too...
Just saying.. would make looking up the item a SNAP....
thanks for the post
I am curious to know when does the dealer suggest that this filter be replaced?

Teammuir1
09-29-11, 08:54 PM
the web site looks like they sell different brands.. which one did you go with?

kschwed
09-29-11, 10:11 PM
I replaced mine with an AC Delco (OEM) activated charcoal filter from Autozone. They went ahead and looked up the part number for me. Autozone wouldn't be a bad place to start. Don't hold me to this, but I believe I only paid about $30.00 for it. Also, I think GM suggests replacing the filter after 50k miles or sooner if you live in a dustier or dirtier area.

philanders
10-03-11, 05:40 PM
The Cadillac stealer oops I mean dealer quoted me a price of $100 to replace the cabin air filter. What a ripoff.:canttalk: All it takes is 5 minutes to change and a good carbon filter can be had for $30.Shame on them!!!



I was quoted $70 by a regular (non-dealer) repair shop

Sir William
10-04-11, 08:17 AM
The one thing that I see here is the fact that they rotated tires that should be different sizes from front to rear. The front ones are smaller then the rear ones!

Sir William
10-04-11, 08:19 AM
You better check the sizes of the tires if they were factory. My dealer would not rotate them for that reason.

DitkaFan
10-04-11, 06:31 PM
The Cadillac stealer oops I mean dealer quoted me a price of $100 to replace the cabin air filter. What a ripoff.:canttalk: All it takes is 5 minutes to change and a good carbon filter can be had for $30.Shame on them!!!

Can anyone recommend a good place online to purchase a good carbon filter.

Cadjiek
10-04-11, 07:21 PM
Is the cabin air filter standard on all option groups? I have taken the cover off three timess and still don't see one in there.

mapmaker
10-05-11, 10:35 PM
sure would have been nice to have a part number for the filter you bought... or even the charcole filter part number too...
Just saying.. would make looking up the item a SNAP....
thanks for the post
I am curious to know when does the dealer suggest that this filter be replaced?

You can actually see the part number in the photo that was posted - GM02112C

C&C
10-07-11, 11:17 AM
While I'm certainly not a Cadillac Service Technician, I am more than handy; I also conclude that changing this seemingly easy filter was PITA.

KRSTS
10-08-11, 10:04 AM
:bigroll:
While I'm certainly not a Cadillac Service Technician, I am more than handy; I also conclude that changing this seemingly easy filter was PITA.

Same here. I ended up unhooking the hood from the strut and tying it up to my garage ceiling so I could get the new filter in without bending the shit out of it.:banghead:

EChas3
10-08-11, 09:10 PM
:bigroll:

Same here. I ended up unhooking the hood from the strut and tying it up to my garage ceiling so I could get the new filter in without bending the shit out of it.:banghead:

Although it's harder than I think it should be, I didn't have much trouble. It bends easily.

pilikia1
02-20-12, 08:36 PM
For, what it's worth, Cadillac and GM think they're on top again because people are scratching their national pride and of course, we all want to see America working again and doing well. I'm a guy over 60 and the 2007 Caddy isn't anything like the Caddies I had in the 70's. This thing is so tinny and cheaply made and I find it interesting that a great deal of the parts that I am running into for this car are made in China that I am truly sorry that I bought it without giving it more consideration. Without a doubt, I believe that within 5 to 10 years, maybe sooner, people are going to go back to buying cars that work and require little or no maintenance and this 'so called bailout' of the auto companies isn't going to pan out. I really think that the top auto executives should be forced to drive their luxury made cars (Cadillac, Lincoln) and their everyday cars (Chevy, Ford) and have to take them into the dealership and be given a wrench and told they need to service the car when service is needed and find out the frustration that we backyard mechanics, who not only like to work on our cars, but want to work on our cars, go through. They just might find out that they could or should have designed something better with the poor service mechanic in mind. It isn't enough to sit behind the wheel and say I bought American, when the product lets you down in so many ways and if their desire is to see everyone going back to the dealerships to service their products because they're designed to where we can't, then I guess I'll give up owning a car and go to public transportation. Thanks, Andy.

erichthecatt
02-20-12, 11:39 PM
I purchased my carbon air filter on amazon. through auto barn. bosch part bosc3859. xlnt filter

C&C
02-21-12, 05:19 AM
So who pissed in Andy's Wheaties, post number 21; joined the forum to complain about his STS (it's his first post, ever, and on a thread concerning cabin air filters). At 62 years of age (I'm 61), he's inditing the whole American car industry because of his purchase of an STS; I would expect a little more maturity (in a first post).

Okay Andy, I'll give you the benefit of the doubt; would you like to followup your first post with a rational response to my challenge?

Cadjiek
02-21-12, 10:03 AM
Mine is a 1sb and I don't see one in mine either.

KRSTS
02-21-12, 10:11 AM
For, what it's worth, Cadillac and GM think they're on top again because people are scratching their national pride and of course, we all want to see America working again and doing well. I'm a guy over 60 and the 2007 Caddy isn't anything like the Caddies I had in the 70's. This thing is so tinny and cheaply made and I find it interesting that a great deal of the parts that I am running into for this car are made in China that I am truly sorry that I bought it without giving it more consideration. Without a doubt, I believe that within 5 to 10 years, maybe sooner, people are going to go back to buying cars that work and require little or no maintenance and this 'so called bailout' of the auto companies isn't going to pan out. I really think that the top auto executives should be forced to drive their luxury made cars (Cadillac, Lincoln) and their everyday cars (Chevy, Ford) and have to take them into the dealership and be given a wrench and told they need to service the car when service is needed and find out the frustration that we backyard mechanics, who not only like to work on our cars, but want to work on our cars, go through. They just might find out that they could or should have designed something better with the poor service mechanic in mind. It isn't enough to sit behind the wheel and say I bought American, when the product lets you down in so many ways and if their desire is to see everyone going back to the dealerships to service their products because they're designed to where we can't, then I guess I'll give up owning a car and go to public transportation. Thanks, Andy.

Everyone has an opinion, most people aren't interested.

MARSTS
02-21-12, 02:50 PM
Thnaks for the post. I did mine about 4-5 months ago and I wrestled with it for 10-15 minutes. When you first take the original out, it seems like a breeze and thats when my trouble (I think) started. My filter ended up in the same position as the photo above, but this was not the position that it was install in from the factory - it was positioned deeper in the enclosure. I couldn't get it to go any further down in the cavity, so I ended up leaving it as is. It is tough to see down into this area, so you can't tell if it is in the right position. Has anyone else experienced the same???

KRSTS
02-21-12, 04:12 PM
Thnaks for the post. I did mine about 4-5 months ago and I wrestled with it for 10-15 minutes. When you first take the original out, it seems like a breeze and thats when my trouble (I think) started. My filter ended up in the same position as the photo above, but this was not the position that it was install in from the factory - it was positioned deeper in the enclosure. I couldn't get it to go any further down in the cavity, so I ended up leaving it as is. It is tough to see down into this area, so you can't tell if it is in the right position. Has anyone else experienced the same???

That is why I ended up unhooking the hood from the strut and tying it up to my garage ceiling so I could get the new filter in the proper position without bending the shit out of it. Once you can see clearly down there, you can get it in right. I now see why a dealer charges so much to replace it. It is a bitch

R3TRO
02-28-12, 05:34 AM
I bought mine on Amazon.com:
FRAM CF10371 Fresh Breeze Cabin Air Filter
http://www.amazon.com/CF10371-Fresh-Breeze-Cabin-Filter/dp/B001CEG93K/ref=au_pf_pfg_s?ie=UTF8&Model=STS|2545&n=15684181&s=automotive&Make=Cadillac|46&Year=2005|2005&vehicleType=5&carId=003

Yes a P A I N to replace. You do have to bend it a little, but once it's in, just wiggle it around a little and it will fall into place, it doesn't sit under the tabs but against the outside of them. It doesn't look like it's in correctly, but it is. I did my air filter at the same time for extra frustration!

DBeaSST
02-28-12, 08:39 AM
Did you have to remove the wiper arm to get the cover panel off?

6sts
02-28-12, 11:32 AM
I did this yesterday, took 10 min, the new one gets bent a little going in but straightens out before into place, I used the factory rubber edges on the new filter for a better seal.

dkozloski
02-28-12, 02:35 PM
It helps if you follow the instructions in the factory service manual. It's a five minute job, at the most.

KRSTS
02-28-12, 04:08 PM
It helps if you follow the instructions in the factory service manual. It's a five minute job, at the most.
I would like to time you LOL

cadillacmike68
02-28-12, 07:20 PM
I wonder what Andy really feels WRT the newest American cars! :bomb:

But as one who currently owns a 1968, 1996, 2008 & 2009 Cadillacs and used to own 1969, 1970, 1973, 1995, 2000, & 2005 Cadillacs (& a 1966 Lincoln), I can sense some of his frustration. The 68, 69, 70, & 73 were much easier to work on, and even the 59 & 96 (both Fleetwoods) were not so bad. The 2000 (Eldorado) was a service nightmare, and while the 05, 08 & 09 are RWD (or AWD) the plethora of electronics and emission control jibberish in the engine compartment makes it a very daunting task to even locate something like the PCV valve or change the spark plugs. :mad2:

On the other hand these newest ones have a a host of creature comforts, they handle better, have excellent driver aids & better stereos, have more real Net power (maybe my 1968 overhauled 472 might have something to say about that!) AND they get better fuel economy.

You'll notice that with the exception if the 1973 (my first cadillac when i was still in HS, and didn't know as much) I don't own anything from 1971 thru 1994 (although I'd buy a 1992 Brougham d'Elegance with the 5.7 if i could find one! :D ).

----------

Binky, where the hell do we get the service manuals for these cars (and the 2008 & later CTS)?? I have them for all my older Cadillacs, but not these two recent acquisitions.

dkozloski
02-28-12, 07:53 PM
I wonder what Andy really feels WRT the newest American cars! :bomb:

But as one who currently owns a 1968, 1996, 2008 & 2009 Cadillacs and used to own 1969, 1970, 1973, 1995, 2000, & 2005 Cadillacs (& a 1966 Lincoln), I can sense some of his frustration. The 68, 69, 70, & 73 were much easier to work on, and even the 59 & 96 (both Fleetwoods) were not so bad. The 2000 (Eldorado) was a service nightmare, and while the 05, 08 & 09 are RWD (or AWD) the plethora of electronics and emission control jibberish in the engine compartment makes it a very daunting task to even locate something like the PCV valve or change the spark plugs. :mad2:

On the other hand these newest ones have a a host of creature comforts, they handle better, have excellent driver aids & better stereos, have more real Net power (maybe my 1968 overhauled 472 might have something to say about that!) AND they get better fuel economy.

You'll notice that with the exception if the 1973 (my first cadillac when i was still in HS, and didn't know as much) I don't own anything from 1971 thru 1994 (although I'd buy a 1992 Brougham d'Elegance with the 5.7 if i could find one! :D ).

----------

Binky, where the hell do we get the service manuals for these cars (and the 2008 & later CTS)?? I have them for all my older Cadillacs, but not these two recent acquisitions.www.helminc.com

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I would like to time you LOL
The first step is to pull the hood strut off and prop the hood straight up. I use an old broom handle. Using a DeWalt screwdriver you pull out the three screws holding the inlet screen. You work the latches and pull out the old filter. You replace the old filter with the new filter and reset the latches. Because the hood is out of the way it's duck soup. Replace the screen and the three screws. Remove the broom handle and push the hood strut back on the stud.

chazglenn3
02-28-12, 09:47 PM
That was my theory on making it easier too...getting the hood out of the way. I had not actually tried it yet, so thanks for confirming it!

Cadjiek
03-15-12, 01:19 PM
Well I finally found the filter. The mistake I made was I thought that after the inlet grill was removed the filter would be exposed. It's not. There is that plastic cover that snaps off. Pulled it out, cleaned it up and put it back. I only have 27,000 on the car so it was still pretty clean. Koz is correct. 5 minute job. No broom handles needed either. The hardest part is reaching for the end screw.

LewisR
03-22-12, 05:17 PM
I let mine sit a bit longer than I wanted, and let it slide by a couple oil changes back (the original filter). Now, at 82K, my '09 was in pretty dire need of this. The car went in to the dealer for service (SHIFT TO PARK issue), and the dealer changed the shifter and the battery (which drained once at a garage with the dumb SHIFT TO PARK message beeping all day), and warned me that the engine air filter was dirty as was the cabin filter. While all of the warranty work was covered, they quoted me $79 for the engine air filter and $119 for the cabin filter... LOL! On Amazon, I got the cabin filter (AC Delco CF133) for $25.80 and the engine element (AC Delco A2944C) for $21.85. With Amazon Prime, I had no shipping, either. First time out for the cabin filter, as I say, and at 82K it was pretty nasty. To change both took me 15-20 minutes, and the biggest delay was figuring out that the cabin filter was so flexible. :) I agree that working on my '68 de Ville convertible is in general a good deal easier (and all of the parts, I think, are made in the USA, like my '63 Bonneville convert), but then, neither the '68 de Ville nor the '63 Bonneville has a cabin air filter, so it's kind of hard to compare that particular component replacement. The air cleaner, of course, is a much bigger pain on *all* of the newer cars, but surely nothing requiring an engineering degree. Thanks to the original poster for the excellent photo of the cabin filter location; that was worth a thousand words. Cheers, all.

Hoosier24
04-03-12, 10:50 AM
Just want to say thanks for this post. I would never found it without the pix.