BMW issued a recall on the 3 SERIES model

On certain 325XI vehicles a problem in the manufacturing process of the rear brake rotors may have resulted in the creation of a crack where the brake disc and the parking brake drum meet. Further cracking of the rotor could occur due to braking torque when the vehicle is driven and the brakes are applied. The brake drum, connected to the wheel hub, would completely separate from the disc. If this happened, the wheel would continue to turn, but the disc would stop, and there would be no braking capacity at that wheel, increasing the risk of a crash. Correction: Dealers will replace both rear brake rotors.