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How often should the brake pads of an Audi Q5 be replaced?

1 Answers

VonLeah

07/30/25 12:06am

Audi Q5 brake pads should be replaced every 60,000 kilometers. Brake pads generally consist of two parts: an iron backing plate and friction material. It is important not to wait until the friction material is completely worn out before replacing the pads. Typically, the thickness of new front brake pads is 14 millimeters, while the replacement limit thickness is 7 millimeters, which includes over 3 millimeters of iron backing plate thickness and nearly 4 millimeters of friction material thickness. Below is more information about automotive brake pads: 1. Automotive brake pads, also known as brake linings, refer to the friction materials fixed on the brake drum or disc that rotates with the wheel. The friction linings and blocks bear external pressure to generate friction, thereby achieving the purpose of vehicle deceleration. Automotive brake pads are generally composed of steel plates, adhesive heat insulation layers, and friction blocks. The steel plates are coated to prevent rust, and the coating process is monitored using an SMT-4 oven temperature tracker to ensure the temperature distribution during coating meets quality standards. 2. The working principle of brakes mainly relies on friction. By utilizing the friction between the brake pads and the brake disc (or drum), as well as between the tires and the ground, the kinetic energy of the moving vehicle is converted into heat energy through friction, bringing the vehicle to a stop. A good and efficient braking system must provide stable, sufficient, and controllable braking force, along with excellent hydraulic transmission and heat dissipation capabilities, to ensure that the force applied by the driver on the brake pedal is effectively transmitted to the master cylinder and sub-cylinders, while avoiding hydraulic failure and brake fade caused by excessive heat. The braking systems on vehicles are divided into two main categories: disc brakes and drum brakes, with the efficiency of drum brakes being far inferior to that of disc brakes.

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