Tumble Flap Actuator Repair - C Class - W204 - Mercedes-Benz
Tumble Flap Actuator Repair - C Class - W204 - Mercedes-Benz Tumble Flap Actuator Repair Time: 1 hour Tab: $300 Talent: 1 Tools: T30 Torx, small flathead screwdriver Applicable Models: Mercedes-Benz C350 (2008-14) Mercedes-Benz GLK350 (2010-14) Parts Required: Actuator repair kit, silicone grease, blue Loctite Hot Tip: Lube the ball cups Performance Gain: Better engine performance Complementary Modification: New injector O-rings Along with the variable intake runners on the intake manifold on the Mercedes C350 the manifold also has tumble flaps. These tumble flaps on each side of the intake help swirl the air entering the combustion chamber helping with performance and economy. While the system works reasonably well, over time carbon will build up on the flaps and cause more stress on the plastic actuator arm than the system was designed to handle. This usually results in the failure of the plastic pivot lever where it meets the actuator arm. If you drive the car long ...
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