Why is Your BMW Check Engine Light On in Walnut Creek? Thus, the instrument cluster of the BMW has several lights, but the most common among them is the check engine light. Without seeing the light up, driving the vehicle can cause several situations. In general, the check engine light is illuminated for a variety of reasons. These lights warn you that something is not right in your vehicle and put you in danger. At the same time, it will not always mean that the issue is an urgent threat. So, it’s always advisable to consult with a reputed mechanic to check out the issues and fix them as soon as possible. Moreover, the check engine light doesn’t always illuminate in the same color such as orange, red, or yellow. In many models of the BMW, the red light indicates serious problems that should be checked immediately. On the other hand, the orange or yellow lights are indicating the normal issues and need to be checked to find the causes behind them. The following points define the causes behind the illuminated check engine light in the BMW.
Failed mass airflow sensor In your vehicle, the mass airflow sensor is commonly used for measuring the air coming into the engine to perform the right amount of air to fuel mixture. Lack of the right amount of air/fuel mixture in the engine may cause engine stalling issues or your car refuse to start. If the mass airflow sensor is failed, then the onboard computer will receive a signal about the problem with the air/fuel mixture in the engine that may activate the check engine light on the dashboard.
Worn spark plugs Like other causes in the BMW, the worn spark plugs or plug wires also illuminate the check engine light on the dashboard. When it happens in your vehicle inspect the spark plugs with the ignition system because sometimes ignition system problems also trigger the check engine light. Subsequently, the failed spark plugs also cause engine stalling problems in your vehicle. For preventing the issues, you have to change the spark plugs and spark plug wires when your vehicle runs over 100,000 miles.
Damaged catalytic converter
Commonly, the catalytic converter is an important part of the exhaust system. If you will experience the rotten-egg smell in your vehicle, then make sure that the catalytic converter is damaged. In many vehicles, the problems within the catalytic converter also activate the check engine light on the dashboard. Neglecting the issues for longer may damage the converter completely and lead to some expensive repairs. So, due to these reasons, you have to replace the converter because your vehicle cannot run without it.
Faulty oxygen sensor The failed oxygen sensor is the most common reason behind the activated check engine light when you are driving the vehicle at high speeds. Moreover, the oxygen sensor is a crucial part of the BMW that can measure the amount of unburned oxygen found in the exhaust system. If the exhaust system has too little or too much-unburned oxygen, then it will damage several parts of the engine. When your vehicle has a faulty oxygen sensor, then it will trigger the check engine light every time.
Loose gas cap If you didn’t screw up the gas cap tightly enough after filling the gas in your vehicle, then it will also make the check engine light come on. When the gas cap is tightened enough, it will create a vacuum seal with the cap. More often, the loose gas cap will crack it eventually and damage functions of other engine components. On the other hand, a broken vacuum seal also activates the check engine warning light in BMW.
Conclusion When the check engine light of the BMW is activated on the dashboard, then diagnose it for determining the real problem within the vehicle. Neglecting the issues for longer may affect other components of the vehicle and lead to some expensive repairs. So, without any delay try to identify the causes behind it by using some OBD scanner tools. If you are currently living near Walnut Creek, then bring your BMW to the nearest auto repair center for determining the causes behind the problem and fix it efficiently by using advanced tools and techniques.