How to Replace the Pressure Accumulator on a BMW E23 7 Series

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Video tutorial on how to replace the pressure reservoir for the hydraulic brake booster on a BMW E23, also known as a pressure accumulator. This particular car is a 1984 733i, this system was found on many BMW models in this generation. When the pressure reservoir fails, this will cause a hard brake pedal and is noticeable when you hit the brakes in an emergency so its certainly a safety risk.

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