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K&N 33-2985 Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.9 out of 5 stars   17 Customer Reviews
  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used again
  • High air flow with exceptional filtration
  • Lasts up to 50,000 miles before cleaning is required depending on driving conditions
  • Works with original equipment manufacturer vehicle electronics
  • Emissions legal in all 50 US states
  • Will NOT void vehicle warranty
  • Million Mile Limited Warranty®
The K&N 33-2985 Air Filter fits some Mercedes-Benz C300, Mercedes-Benz C350, Mercedes-Benz CLS350, Mercedes-Benz E300, Mercedes-Benz E350, Mercedes-Benz E400, Mercedes-Benz E400 Hybrid, Mercedes-Benz GLK350, Mercedes-Benz ML350, Mercedes-Benz R350, Mercedes-Benz S350, Mercedes-Benz S400 Hybrid, Mercedes-Benz SL350, and Mercedes-Benz SLK350 models. See vehicle applications link for details.
K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.

[More Information on K&N Replacement Air Filters]

Product Specifications

Air Filter ShapePanel
Filter MaterialCotton Gauze
Height1 in (25 mm)
Outside Length16.688 in (424 mm)
Outside Width7.875 in (200 mm)
Package Contents1 Air Filter
Package Quantity1
Product StylePanel Air Filter
Weight2 lb (0.9 kg)
Filter Re-Oiling Amount1.45 oz (43 ml)
Product Box Height17.19 in (437 mm)
Product Box Length8.31 in (211 mm)
Product Box Width1.75 in (44 mm)

K&N 33-2985 Air Filter Product Reviews

Thursday, May 11, 2017 - Part 33-2985
I'm happy with this product and the promptness of the delivery.

Francisco Orfila
Miami, Florida
Monday, May 8, 2017 - Part 33-2985
Perfect fit for my E350 coupe. Slight horsepower increase.

Ricardo Rivera
Farmingville, New York
Thursday, March 16, 2017 - Part 33-2985
My wife drives a 2012 Mercedes E-350 Coupe. I have always used K&N filters for my company and personal autos. Luckily she doesn't drive like me, but it definitely made a difference in the performance and fuel economy. I have, and will always, recommend K&N filters. It only cost a little more to go first class

Myrl Thompson
Louisville, Kentucky
Saturday, October 8, 2016 - Part 33-2985
I know the brand pretty well and it has always been on the top of line when it's about air filters. What would be really nice is to receive vouchers for your next purchase.

Farhan Ghanty
Raleigh, North Carolina
Monday, September 5, 2016 - Part 33-2985
I've had such an improvement with the air filter, I bought for the 2006 SLK350 that I purchased the correct air filter for our 2014 C300 4matic. My only problem is I'm unable to find any installation videos on either the K&N website or You-Tube to walk me through the proper method of installation for the C300. My two options are to delay or have the dealer where I bought the car install it for me. NOT what I had in mind. I attempted the website contact option on the computer but was not successful in getting through. Regardless of my predicament I still think the K&N products are excellent.

William Wood
Winchester, Virginia
Wednesday, June 1, 2016 - Part 33-2985
The Filter was just great and no problem to replace the old Filter. I did notice the car has more pickup with this new K&N Filter. Regards

Jeffrey Bailey
Tryon, North Carolina
Tuesday, May 10, 2016 - Part 33-2985
Excellent product. I have replaced OEM filters with these for many years. See the difference in performance and fuel economy. Worth the investment for my ML350.

Wayne Mitchell
Roscoe, Illinois