Mercedes-Benz W251 R350 Tensioner & Pulley Kit

Are you experiencing squealing noises from the front end of your Mercedes-Benz? The cause of this noise is typically a problematic drive belt system, and for the M272 engine, specifically the belt tensioner.

If it's time to service your drive belt system, why stop at just changing the belt and the tensioner?

Over time the idler and guide pulleys will begin to make noise as well after years of use. ECS Tuning has the solution to eliminate the irritating noise and get your engine up and running properly.

Belt Tensioner and Pulley kits have been assembled to address each concern.