SLK/R171: DIY Service E Cabin Air Filter Replacement
Thread Starter
Senior Member
Joined: Aug 2007
Posts: 383
Likes: 4
From: Los Angeles, California
07 CLS63 | 06 SLK350
DIY Service E Cabin Air Filter Replacement
Well my Service E was overdue since I reset the reminder at 26,000 miles. I have been
procrastinating to getting this done, i'm actually glad I didn't do it earlier since the Air
Filter was only about 20% dirty, could have gone another 10,000 miles easy.
Nevertheless, I decided to do a write-up since there wasn't a good one yet...
Step1:
Tools Needed, Torx Screwdriver T-20.
Supplies: Mann Air Combination Filter (purchased from autowarehouseparts.com)
Step2:
The instructions supplied (pictures only) with the filter are pretty good, but the following
ones should help even more..
Step3:
Best way to have enough room to dive in there, is get the top down and open the passenger
door all the way.
Step4:
Remove the three torx screws using your nifty torx-20 screwdriver.
Step5:
Pull back the padding in the footwell like in the picture below:
Step6:
There is tab holding the left part of the plastic piece, use a flat-head screwdriver to pop
it out.
Step7:
Disconnect the light connector, and the cigarette lighter connection (this is a weird pull
down clip type plug, took some futzing to get it out)
Step8:
Once the plastic piece is out, you will see a large white box, the filter is inside this
box. There are two yellow clips that need to be slided to the left/right. The box then pops
out from below and the folded-filter will fall right out.
Pic of the old filter, as you can see its pretty clean after 30,000 miles:
Step9:
Make sure you remember the way the filter was (directionally).
Step10:
That's the base of the filter box, take some time to clean it as well since you have access
it to it right now...
Step11:
Once you put the new filter in and put the under-part of the white box back on, you have to
be very careful to make sure it fits snugly. I read in other member's posts that they had to
remove and replace 2-3 times to ensure a snug fit with no air leaks. I had the exact same
thing happen to me!! You have to turn the A/C on, and then check for leaks with your hand
placed at several sides of the box.
Look at the diagram below to see the points to check.
Step12: Thats it, once you make sure the lower box is snugly fit, you're done!
Total Time : 1 hour , Supplies Cost: $50.00
procrastinating to getting this done, i'm actually glad I didn't do it earlier since the Air
Filter was only about 20% dirty, could have gone another 10,000 miles easy.
Nevertheless, I decided to do a write-up since there wasn't a good one yet...
Step1:
Tools Needed, Torx Screwdriver T-20.
Supplies: Mann Air Combination Filter (purchased from autowarehouseparts.com)
Step2:
The instructions supplied (pictures only) with the filter are pretty good, but the following
ones should help even more..
Step3:
Best way to have enough room to dive in there, is get the top down and open the passenger
door all the way.
Step4:
Remove the three torx screws using your nifty torx-20 screwdriver.
Step5:
Pull back the padding in the footwell like in the picture below:
Step6:
There is tab holding the left part of the plastic piece, use a flat-head screwdriver to pop
it out.
Step7:
Disconnect the light connector, and the cigarette lighter connection (this is a weird pull
down clip type plug, took some futzing to get it out)
Step8:
Once the plastic piece is out, you will see a large white box, the filter is inside this
box. There are two yellow clips that need to be slided to the left/right. The box then pops
out from below and the folded-filter will fall right out.
Pic of the old filter, as you can see its pretty clean after 30,000 miles:
Step9:
Make sure you remember the way the filter was (directionally).
Step10:
That's the base of the filter box, take some time to clean it as well since you have access
it to it right now...
Step11:
Once you put the new filter in and put the under-part of the white box back on, you have to
be very careful to make sure it fits snugly. I read in other member's posts that they had to
remove and replace 2-3 times to ensure a snug fit with no air leaks. I had the exact same
thing happen to me!! You have to turn the A/C on, and then check for leaks with your hand
placed at several sides of the box.
Look at the diagram below to see the points to check.
Step12: Thats it, once you make sure the lower box is snugly fit, you're done!
Total Time : 1 hour , Supplies Cost: $50.00
Member
Joined: Apr 2006
Posts: 232
Likes: 0
From: SHERMAN OAKS, CALIFORNIA
SLK28
hey there.. thanx for posting up the pictures and tips... im a bit confuse tho, is this the regular air filter?? i thought that it would be around the engine?? .. another thing, how do u reset the "reminder"..
Thread Starter
Senior Member
Joined: Aug 2007
Posts: 383
Likes: 4
From: Los Angeles, California
07 CLS63 | 06 SLK350
Senior Member
Joined: Aug 2004
Posts: 306
Likes: 0
From: Skokie, Illinois
Am I the only SLK owner that thinks the cabin air filter is just a gimick to charge customers more for service. Why would I want filtered air when the a/c or heater is on when I drive with the top down or with the windows down. When my car indicates that the filter needs changing, I'll remove it and not put a new one in.
Senior Member
Joined: Apr 2007
Posts: 335
Likes: 0
From: Cromwell, CT
SLK 350
Am I the only SLK owner that thinks the cabin air filter is just a gimick to charge customers more for service. Why would I want filtered air when the a/c or heater is on when I drive with the top down or with the windows down. When my car indicates that the filter needs changing, I'll remove it and not put a new one in.
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Newbie
Joined: Apr 2015
Posts: 3
Likes: 0
SLK 280
Broken cabin filter housing lip
The casing lip for the cabin filter on my SLK 280 is broken for one of the two sliding latches.
Where the plastic slider grips the casing, the lip of the plastic casing is missing so the slider has nothing to grip. There look to be two sliders and one is intact while the second one cannot "grip" the casing.
I'm looking for an alternative way to secure the filter housing to the filter casing.
Where the plastic slider grips the casing, the lip of the plastic casing is missing so the slider has nothing to grip. There look to be two sliders and one is intact while the second one cannot "grip" the casing.
I'm looking for an alternative way to secure the filter housing to the filter casing.
Newbie
Joined: Apr 2024
Posts: 1
Likes: 0
SLK 200 2013
Am I the only SLK owner that thinks the cabin air filter is just a gimick to charge customers more for service. Why would I want filtered air when the a/c or heater is on when I drive with the top down or with the windows down. When my car indicates that the filter needs changing, I'll remove it and not put a new one in.
