6 Reasons a Check Engine Light Will Come on in Your BMW


6 Reasons a Check Engine Light Will Come on in Your BMWWhen the check engine light illuminates, there's often a tendency to worry that an automotive calamity is looming. But the reality is that something as simple as a loose gas cap can trigger the check engine light. Nevertheless, it's a good idea to visit a reputable shop for diagnostics to help make sure that you're not putting your BMW's health in jeopardy. Here's a look at six common causes of a check engine light turning on.

Need to Replace Spark Plugs/Wires

Faulty spark plugs/wires can actually result in problems with your catalytic convertor and ignition coil.

Bad Ignition Coil

The ignition coil plays a critical role in creating the spark that your engine needs to come roaring to life. Weather extremes can sometimes cause them to malfunction.

Failing Mass Airflow Sensor

This is what calculates how much air is entering the engine, which is needed for a determination on how much fuel will be injected into each cylinder. Fortunately, this is typically a more affordable repair.

Faulty Catalytic Convertor

On the other hand, this one is a more expensive repair, but a necessary one. Your catalytic convertor is what monitors your carbon monoxide and turns it into a less harmful emission.

Failing Oxygen Sensor

This is what keeps tabs on the amount of unburned oxygen in your exhaust system. If it isn't working properly, problems with your catalytic convertor can occur and your gas mileage can worsen.

Loose Gas Cap

If your gas cap isn't tightly sealed, fuel can evaporate before it is used, which can cause the light to illuminate.

If you're in need of check engine light diagnostics or repair on your BMW, be sure to get in touch with a reputable specialist. For BMW repair in West Dallas and Euless, TX, the experts to contact are at DFW Bimmer at (817) 440-3697. Go ahead and give DFW Bimmer a call today for all of your BMW's repair and maintenance needs!

DFW Bimmer Blog

Written By Brian Corey

Published By MORBiZ