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Anyone install K&N filters on their w213? Fitment issues...

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Old May 15, 2021 | 11:37 PM
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Anyone install K&N filters on their w213? Fitment issues...

I used the K&N website to determine the correct part# (33-3140) for the replacements filters; however, the filters I received are both the same size. Whereas, the driver side air box houses a smaller filter. The 33-3140 filter works fine in the passenger side air box.

Anyone with knowledge of the correct part# for the driver side K&N filter?

Thanks.


Last edited by Bobby P; May 15, 2021 at 11:43 PM.
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Old May 16, 2021 | 10:17 AM
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E63S 4MATIC 213
Got BMC filters on mine they are both the same size either side! bit weird as factory ones are both the same size also and yours clearly aren't
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Old May 16, 2021 | 10:51 AM
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Hi, seeing this made me go look at mine. I bought K&N filters for my 2019 E63S Wagon 6 months ago but have not gotten around to installing them lately. At first I thought mine were the same size (and I never knew they needed to be different). It appears in the picture that they are different. Looking at your pic, your OEMs look much more differently from each other however (could be the pic). Anyway the wrapper covering the filters actually have different sub part #s... One ends in "RE" and the other ends in LE. The LE is smaller and must mean left? which is driver? Perhaps K&N mailed you two of the same by accident? Good luck.

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Old May 16, 2021 | 11:22 AM
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Originally Posted by Pioneer222
Hi, seeing this made me go look at mine. I bought K&N filters for my 2019 E63S Wagon 6 months ago but have not gotten around to installing them lately. At first I thought mine were the same size (and I never knew they needed to be different). It appears in the picture that they are different. Looking at your pic, your OEMs look much more differently from each other however (could be the pic). Anyway the wrapper covering the filters actually have different sub part #s... One ends in "RE" and the other ends in LE. The LE is smaller and must mean left? which is driver? Perhaps K&N mailed you two of the same by accident? Good luck.
yeah just done the same they are different sizes 🤦‍♂️🤦‍♂️ Never noticed before
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Old May 16, 2021 | 11:22 AM
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Remarkable successful K&Noooooo marketing still today baffling the blind .

I saw through them years ago !




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Old May 16, 2021 | 11:30 AM
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BMC highly recommended have washed and re oiled still going strong
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Old May 16, 2021 | 11:33 AM
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Old May 16, 2021 | 11:45 AM
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Originally Posted by nw66
Got BMC filters on mine they are both the same size either side! bit weird as factory ones are both the same size also and yours clearly aren't

The primary function of an air filter is to filter...

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Old May 16, 2021 | 12:24 PM
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Thanks for taking the time to post that photo.

I think you are exactly correct...my package contained two of the "RE" filters. Just by eyeballing your photo...the "LE" looks to be a perfect fit as the "RE" is approximately 3/4" too long to fit on the driver side.

Thanks again for your input.
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Old May 16, 2021 | 04:12 PM
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Originally Posted by Bobby P
Thanks for taking the time to post that photo.

I think you are exactly correct...my package contained two of the "RE" filters. Just by eyeballing your photo...the "LE" looks to be a perfect fit as the "RE" is approximately 3/4" too long to fit on the driver side.

Thanks again for your input.
Welcome! I am actually glad you posted this though. Had I tried the wrong one on the correct side first, I would have assumed they were the same and probably thought I had the wrong part number altogether. You save me some time!
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Old May 16, 2021 | 05:00 PM
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Originally Posted by Pioneer222
Welcome! I am actually glad you posted this though. Had I tried the wrong one on the correct side first, I would have assumed they were the same and probably thought I had the wrong part number altogether. You save me some time!
Funny...I did the passenger side first...which fit...second guessed myself once I noticed the driver side side difference and got to take the completed side apart to correct my "error."

So I know exactly what you mean...:-)
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Old May 17, 2021 | 02:30 PM
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LOL yes they are side specific.
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Old May 17, 2021 | 02:49 PM
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Originally Posted by Gazwould
The primary function of an air filter is to filter...

https://youtu.be/nZ0YEPR1pJ8
If the performance filters had been oiled correctly would of helped! 16minutes of my life i will never get back
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Old May 17, 2021 | 05:22 PM
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You really honestly believe that ?

Completely deluded by marketing...
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Old May 17, 2021 | 05:29 PM
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yeah
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