K&N 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 againI 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.