Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
Hi, welcome to Just Answer. My name is***** the flapping noise is directly related to the wheel speed the problem will more than likely be a bad tire or something stuck in a tire or in the wheel or brake area. You should get the car to the shop to have the tires inspected for any defects and to have the wheel and brake area inspected. A lifted tire tread on a tire will give you that flapping sound. Rotating the tires from side to side would be a good way of diagnosing the problem. If the noise seems to move or change when the tires are rotated the problem would be the tires.
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