Mercedes-Benz Garage

Tumble Flap Position Sensor Replacement - C Class - W204 - Mercedes-Benz Tumble Flap Position Sensor Replacement Time: 2 hours Tab: $50 to $100 Talent: 2 Tools: T-30 Torx driver, small flathead screwdriver Applicable Models: Mercedes-Benz C350 (2008-14) Mercedes-Benz GLK350 (2010-14) Parts Required: Tumble flap sensor Hot Tip: Be prepared to move things out of the way Performance Gain: Working variable resonance intake Complementary Modification: New air filter The Mercedes C350 has a variable resonance intake manifold. This manifold can switch over from long intake runners to short intake runners by utilizing switch flaps and tumbler or flap shafts. There are two shafts, one on each side of the intake manifold. If you are getting error codes from the variable system, one of the first things you should check is the tumbler flap sensor for failure. Both sensors are located at the rear of the intake manifold. While replacement in theory is easy I have never been able to si...

Purge Valve Replacement - C Class - W204 - Mercedes-Benz Purge Valve Replacement Time: 1 hour Tab: $100 Talent: 2 Tools: Flathead screwdriver Applicable Models: Mercedes-Benz C250 (2012-14) Mercedes-Benz C300 (2008-14) Mercedes-Benz C350 (2008-14) Parts Required: Valve, hose clamps Hot Tip: Make sure you install it in the right direction Performance Gain: Pass SMOG test Complementary Modification: Change air filters A faulty purge valve or regeneration valve for fuel vapor recovery can cause you to fail a SMOG test and throw an error code in the system. The purge valve opens to allow all the vapors that are captured from the fuel tank (especially during fill ups) to be recycled to the engine to be burnt once the engine has reached certain performance parameters. There are two lines attached to the valve. Even though it is very difficult to mix them up, as they are different sizes, pay attention and make sure you install the valve in the right direction. The line out from ...