BMW 535i xDrive cold start issue with low RPM and shaking, potential cam sensor replacement on BMW 535i xDrive

Some BMW 535i xDrive owners report experiencing cold start issues characterized by low RPM and shaking, which may indicate underlying engine problems. These symptoms could be linked to a faulty camshaft sensor, a critical component that monitors the camshaft's position and affects engine performance and timing. If the camshaft sensor is failing, it can result in rough idling, misfires, and difficulties during cold starts. Replacing the camshaft sensor may alleviate these cold start problems and enhance overall vehicle performance. Owners are advised to consult a qualified mechanic or BMW specialist for accurate diagnosis and to determine if cam sensor replacement is necessary, as timely repairs can prevent further engine damage and ensure smooth operation.