What Causes Your BMW Service Engine Soon Light To Come On in Phoenix? Now modern cars have numerous warning lights to alert the driver when something is not functioning efficiently while driving on the road. Among the several warning lights of the BMW, the service engine soon light is the most important one that can alert the drivers about the sensors that have some sort of problems. When the engine control module has identified any problem within the emission control system and the engine, then the service engine soon light comes on in the dashboard of your BMW. Additionally, the engine soon light also indicates minor problems related to the other electrical systems. Moreover, determining the real causes behind the activated service engine soon light is very easy. The following points define the causes behind the triggered service engine soon light in your BMW.
Malfunctioned oxygen sensor Thus, the main role of the oxygen sensor in your car is to measure the amount of oxygen available within the exhaust gases and sends the data to the ECU about the unburnt oxygen in the exhaust system to determine the right amount of air-to-fuel mixture for the smooth combustion process. If the oxygen sensor of the BMW is failed, then your engine is running abnormally because too little amount of oxygen in the combustion chamber is harming the engine functions. On the other hand, too much oxygen in the combustion chamber can cause poor engine performance and engine damage. As a result, the service engine soon lights activated on the dashboard.
Failed catalytic converter Generally, the catalytic converter is located in the front of the exhaust system in your car which can reduce the pollutants which are released from the exhaust pipe. Thus, the main function of the catalytic converter in your car is to detoxify the harmful chemicals means it can convert the harmful pollutants to less harmful gases before releasing them into the environment. Among the several components of the exhaust system, it is built to last for longer. But, due to frequent driving, it can wear out in your car that can affect the engine performance, increase the engine temperature and activate the service engine soon light on the dashboard.
Damaged mass airflow sensor
Like the oxygen sensor, the mass airflow sensor is also a critical part of the fuel injection system in your car modern cars like BMW measures the amount of air volume that passes through the air filter and sends that data to the computer to perform the smooth combustion process. By considering the amount of air, the right amount of fuel enters the engine's cylinders. If the mass airflow sensor in your car is failed, you will notice numerous problems while driving on the road such as engine stalling, consuming more fuel than required, damage to the spark plugs, fail the catalytic converter and triggering the service engine soon light to alert the driver.
Loose gas cap Thus, the gas cap is a vital part of the gas tank in your car which is commonly used as a reliable sealer to prevent dirt, dust, and debris from entering the tank. If the gas cap is loose or cracked, then it will force the fuel vapors to leak and activate the service engine soon light to alert the driver about the problem. On the other hand, the loose gas cap can cause other problems in your car such as increasing the fuel consumption of the engine and producing a lot of harmful emissions while driving. So, it's always advisable to diagnose and fix the problem as soon as possible.
Low level of oil In general, the engine of your BMW needs the right amount of oil for the proper lubrication of its components to run at an optimum level and enhance its performance. If the oil level of the engine is lowering down, then the oil pressure drops automatically. When the ECM is detecting low oil pressure in the engine, it will activate the service engine soon light on the dashboard.
What to do when the service engine soon light comes on?
Check out all the fluid levels in your car such as the brake fluid level, transmission fluid level, engine oil level, coolant level, and wiper washer fluid. Carefully inspect the engine if it is producing any types of strange noises. Ensure that the fuel tank of the car is tightened properly. Determine the service history manual of the car during scheduled service.
Conclusion If the service engine soon the light of your BMW comes on while driving on the streets of Phoenix, then consult with a reputed local mechanic for diagnosing the causes behind the activated light and fix it immediately.