Brake Pedal becomes rock hard sometimes.
2010 BMW 320i
Following recent replacement of Rocker Cover and Gasket by BMW, the Brake Pedal sometimes becomes rock hard after the engine is not working for a number of hours. What is the problem?
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2010 BMW 320i
Following recent replacement of Rocker Cover and Gasket by BMW, the Brake Pedal sometimes becomes rock hard after the engine is not working for a number of hours. What is the problem?
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If it's very cold by you, sometimes ice can develop in the hose supplying vacuum to the brake booster (or check valve). The water could possibly entered the system during your recent service. Just a possibility.
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