Engine Air Filter: High Performance, Washable Replacement Filter: Compatible 1998-2015 Mercedes Benz (G550, R500, S400 Hybrid, C300, G500, GL 450, GL 500, GL 550, and more select models), 33-2181

I had a B service done at 57,000 miles which didnt require the filter change. I decided to change from paper to K&N anyway and fitted them myself. Power is smoother and slightly better but moreover impressed with mpg on motorway went up to 26.7 mpg and 21.8 urban.The car i drive is a performance vehicle so i wont be seeing those figures again I feel its important to inform anyone who cleans these filters for the 1st time, to not use excessive amounts of oil when re-oiling the element with the K&N cleaning kit. it could cause issues with sensors and cause poor running. The filters are alrerady pre oiled from new which should give anyone a good indication of how much reoiling they should do when the time comes for cleaning, or contact K&N for advise. Great product

K&N air filters are excellent products. I have bought many of their air filters over the years and they have all been excellent quality and value for money. This one is no exception. Recommended

Perfect, Original k&n Air Filter. Installed on my Mercedes clk 320 that requires 2 filters. Sounds more beastly and gives the car a little more kick. Surprisingly, my Mpg has slightly increased and appears to be giving me better fuel economy. Overall, it is what you would expect from k&n air filter!

Needed 2 in my Mercedes clk. Seems to be £100 pounds well spent. Like the longevity of the product and the perceived improvement in performance. Still monitoring the latter.

Quality as you would expect from K&N

very reasonable price for these filters. And very simple to put into engine. well pleased!

Brilliant, does what it says on the tin.

Fits perfectly great product.

Buen producto

I’ve used K&N air filters on all my cars and have always been satisfied with. Not much of a noticeable lower increase, but throttle response is improved. Fuel economy is also better if you can keep your foot out of it, lol. Quality products as always. This time I put them a Sl550 and let that 5.5L v8 breath a bit better. Thanks Amazon for good price and super fast next day shipping.

+Quick delivery +Fits above vehicle perfectly +Easy to install +Works without problems -Cannot notice any performance enhancement -Engine sound changes somewhat

Best Air Filter ever for I have 3 vehicles all with K&N filters don’t care about horsepower,just a filter for life of my vehicles

Ho comprato i filtri K&N per montarli sulla mia Mercedes-Benz CLS 500 e ne sono entusiasta. Da subito si nota la differenza di suono del motore e la prontezza aumentata sull'acceleratore. Li consiglio vivamente