Power Assist Brake Vacuum Problems of BMW 525

The contact owns a 2007 525 BMW. The contact stated that without warning, the brake pedal would become stiff. The vehicle was taken to an independent mechanic where the technician diagnosed that the vacuum booster had malfunctioned due to contamination. No repairs were made to the vehicle and the manufacturer was made aware of the failure. The failure and current mileage was 120,000.

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The contact owns a 2006 BMW 525i. The contact stated that while attempting to brake, the brakes did not engage and the contact had to apply the emergency brake to bring the vehicle to a stop. The vehicle was towed to a local mechanic, who inspected the vehicle and located the failure at the brake vacuum booster valve. The valve was damaged by an oil leak. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure and current mileages were 161,000. Updated 03/23/lj.

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