2006 to 2015 V6 V8 Owner/Buyer Alert! Check Operation of Your Engine's Swirl Flaps.

Only M272 and M273 Non-Turbo Engines. The intake manifold swirl flaps are unique to these engines and give you some of the same performance as a turbo without the heat. https://mercedessource.com/store/sear.... Better acceleration and smoother power curve. BUT you must make sure they are working properly. I will show you how to test, then show you what breaks, and then show you what is required as a lasting fix.