Common Causes of BMW Check Engine Light
While the specific reasons for a BMW's check engine light may vary depending on the model and year, some common culprits include:
Oxygen Sensor Malfunction: Faulty oxygen sensors can lead to improper air-fuel mixture, resulting in reduced engine performance and increased emissions.
Mass Airflow Sensor (MAF) Issues: A malfunctioning MAF sensor can disrupt the engine's air-fuel ratio, leading to rough idling, stalling, or decreased fuel efficiency.
Ignition System Problems: Faulty spark plugs, ignition coils, or ignition wires can cause misfires, which may trigger the check engine light and result in engine hesitation or rough running.
Exhaust Gas Recirculation (EGR) Valve Failure: A malfunctioning EGR valve can cause excessive emissions and poor engine performance, leading to a check engine light activation and for more information visit bmw check engine light repair.