This is a repair kit for the turbocharger air recirculation valve found on Mercedes-Benz M270, M271, M274 and M276 turbocharged engines. The valve opens and closes continuously to bleed excess boost pressure and protect the turbocharger, so it is a high-wear item; this kit supplies the internal seals and components needed to restore proper valve operation without replacing the entire valve housing.

Fitment: Mercedes-Benz A-Class, B-Class, C-Class and CLA with M270, M271 or M274 engines, covering the W176, W246, W204 and C117 chassis.