How many kilometers should BMW brake discs be replaced?

[StEmma]

For BMW models, both front and rear brake pads should be replaced every 50,000 kilometers, while brake discs should be replaced every 100,000 kilometers, meaning brake discs are replaced every two brake pad changes. Below is relevant information about brake discs: 1. Definition: A brake disc, simply put, is a round disc that rotates when the vehicle moves. The brake caliper clamps the brake disc to generate braking force - when you press the brake pedal, it's this clamping action that slows or stops the vehicle. Brake discs offer excellent braking performance and are easier to maintain than drum brakes. 2. Structure: Disc brake rotors come in two types: solid discs (single discs) and vented discs (double discs). Solid discs are straightforward to understand, while vented discs (VentedDisc), as the name suggests, have ventilation properties. Visibly, they have numerous holes around the circumference leading to the center, called ventilation channels.