How often should the brake pads on a Mazda6 be replaced?

[OElias]

The brake pads on a Mazda6 should be replaced every 20,000 to 50,000 kilometers. Situations that indicate the need for brake pad replacement include: 1. The brake pad thickness is less than 0.5 cm; 2. A metallic scraping sound is heard when lightly applying the brakes; 3. The brakes require deeper pressing to achieve the same stopping power as before. The Mazda6 has the following dimensions: length 4670 mm, width 1780 mm, height 1435 mm, a wheelbase of 2675 mm, and a minimum ground clearance of 150 mm. It is equipped with a 2.0L naturally aspirated engine, delivering a maximum power of 108 kW and a maximum torque of 183 Nm, paired with a 6-speed manual transmission.