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Maintenance
· 4 min read
BMW PCV valve problems: symptoms of a failing crankcase ventilation valve
The BMW PCV valve controls crankcase ventilation. What it does, the symptoms of failure such as whistling, rough idle and oil consumption, which engines are affected and how it is fixed.
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· 4 min read
BMW rough idle: common causes and how to diagnose them
A BMW rough idle can have many causes. Ignition coils, vacuum leaks, injectors, VANOS, crankcase ventilation, carbon build-up and engine mounts explained, with how the real fault is found.
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