How often should BMW brake pads be replaced?
2 Answers
BMW brake pads should be replaced approximately every 50,000 kilometers. Factors affecting brake pad replacement include: the thickness of the brake pads and the degree of wear. Brake pad thickness: When the brake pads become thinner, braking performance significantly decreases, affecting driving safety. When brake pads wear down to only 0.5cm: When brake pads wear down to only 0.5cm, the frequency of self-inspection must be increased. When brake pads wear down to only 0.3cm: They must be replaced immediately, as this is the minimum thickness limit for brake disc replacement, and replacement should be done as soon as possible. When purchasing brake pads, pay attention to the "four checks and two selections": Four checks: First, check the friction coefficient, which determines the basic braking torque of the brake pads. Too high a coefficient can cause wheel lock-up, loss of control, and pad burning during braking, while too low a coefficient results in excessively long braking distances. Check safety—brake pads generate instantaneous high temperatures during braking, especially during high-speed driving or emergency braking. Under high temperatures, the friction coefficient of the pads decreases. Check comfort, including braking feel, noise, dust, smoke, and odors, which directly reflect friction performance. Check lifespan—typically, brake pads can last for 30,000 kilometers. Two selections: Choose brake pads produced by reputable manufacturers that have license numbers, specified friction coefficients, and compliance with standards. The packaging should include a certificate of conformity, production batch number, and production date. Secondly, choose to have them installed by professionals at specialized repair shops.
My experience with BMW is that there's no fixed rule for brake pad replacement, typically needing attention between 30,000 to 60,000 kilometers, largely depending on driving habits. If you frequently drive in city traffic with frequent braking, you might need to replace them just over 30,000 kilometers; if you drive more on highways, they can last over 50,000 kilometers. The key is to regularly check the thickness—when it wears down to only 2-3mm, it's time for new ones. Delaying replacement can lead to longer braking distances, making it more dangerous in rain or snow, and no one wants to risk a rear-end collision. I have the dealership check them with professional tools every six months to avoid risks in advance. Safety is more important than anything—don’t wait until the warning light comes on, as braking performance is already compromised by then.
