Problem Analysis :

1.Two Pad Degree Of Wear Is Different 

Reason :Caliper can't move flexible , caliper piston can't back well

Solution:Check the brake wheel cylinder ,and change the brake pads.

                                                                                  2.Burning Phenomenon

                                                                                  Reason :1.In mountainous areas, the driver continues to drag and grind the brakes during the 

                                                                                               downhill process, causing the brake pads to heat  up too quickly

                                                                                           2.Caliper is broken 

                                                                               Solution:1.Adjust the driving hahit 

                                                                                            2.Check the caliper and brake disc , repair or change them 

3.The Degree Of Wear Is Different On The Same Pad

Reason :1.Caliper is out of shape ,or caliper piston is not in the centrel .

              2.There is the foreign matter on the caliper

              3.It has dirt and foreign matter on the brake pad groove 

Solution:Check the caliper , clear the dirt of brake pad , change the brake pad