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Front Brake Rotor or Disc Replacement - C Class - W204 - Mercedes-Benz
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Front Brake Rotor or Disc Replacement - C Class - W204 - Mercedes-Benz
Front Brake Rotor or Disc Replacement
Time: 2 hours
Tab: $60 to $200
Talent: 2
Tools: 18mm socket, T27 Torx, floor jack, jack stands, wheel chocks,safety glasses
Applicable Models:
Mercedes-Benz C250 (2012-14)
Mercedes-Benz C300 (2008-14)
Mercedes-Benz C350 (2008-14)
Parts Required: Rotors, hardware
Hot Tip: Use new slider bolts
Performance Gain: Car stops better
Complementary Modification: Replace Rotor or disk
Besides physical damage there are basically two ways your rotors can go bad on your Mercedes. The first way is they just wear out. All rotors have a minimum wear thickness on them (that is usually stamped on the rotor). Once they get below this thickness they need to be replaced. If you are going to measure the thickness of the rotors make sure to measure in several places, as the rotor can wear unevenly. The second way they go bad is by warping. If you are feeling a pulsing in the brake pedal when braking, and it is proportionate to the speed of the vehicle you probably have a warped rotor. This is usually caused by hot spotting the rotor by late braking then keeping the pad fully depressed on the rotor while stopped. The heat from the braking trapped by the pad over time will warp a rotor. Rotors can also get heavily grooved. This can also be a cause to replace them.
When replacing your rotors always replace them in pairs. You should also replace the brake pads as well, especially if the rotor was heavily grooved. You want to start with two flat surfaces (the rotor and pad) rubbing against each other when seating the new brakes in. This will lead to better braking performance and eventually longer life from the components.
This is also a good time to give the system a good bleed and get all of the braking system like new.
Safely jack up and support the front of the vehicle and remove the front wheels. Please see our article on safely lifting and supporting your Mercedes W204
Replace your warped or worn front rotors with help from this article
Applies to: C350 (2007-14), C180 (2007-14), C200 (2007-14), C230 (2007-14), C250 (2007-14), C280 (2007-14), C300 (2007-14), C320 (2007-14)
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 ...
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...
Yaw Rate Sensor Replacement - C Class - W204 - Mercedes-Benz Yaw Rate Sensor Replacement Time: 2 hours Tab: $320 Talent: 2 Tools: Trim removal tool, E12 socket, T45 Torx driver, 10mm socket or wrench Applicable Models: Mercedes-Benz C250 (2012-14) Mercedes-Benz C300 (2008-14) Mercedes-Benz C350 (2008-14) Parts Required: Yaw rate sensor Hot Tip: The sensors are sensitive to shock; use care when working with them Performance Gain: Working ESP Complementary Modification: Clean carpet and interior beneath seats The yaw rate sensor is located below the driver side seat and is used to measure the yaw, lateral and longitudinal acceleration of the rotation around a vertical axis. This sensor is used to supply information to the Electronic Stability Program and has been known to fail in the past. If you are getting an error code for the yaw sensor and need to replace it this article will show you how. The sensors are sensitive to impact so use care when working with it and be ca...
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