1. Belt aging;
2. long-distance driving;
3. The tightness is not adjusted properly;
4. One wheel is deformed or the model is wrong.
; 5. One bearing is locked (such as generator and transition wheel);
In case of such a problem, you can replace the belt and tie it.
Mercedes-Benz is a world-famous luxury car brand. 1886 65438+ 10, karl benz invented the world's first three-wheeled car, obtained a patent, and was known as "the inventor of the car".