2x Brake Discs Vented For BMW 3 Series E90 320 si Key Parts Rear 34216855008

A brake disc, also known as a brake rotor, is a vital component of a vehicle's braking system. Brake discs are commonly made from cast iron, composite materials, or carbon ceramic. You should consider replacing your brake discs if you experience any of the following signs: excessive squeaking or grinding noises, reduced braking performance, pulsation or vibration when applying the brakes, or if the disc thickness is below the manufacturer's specified minimum thickness.

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