Signs that Indicate Your BMW Ignition Coil is Failing
Most of the cars on the road require air, fuel, and electricity to run. The ignition coil plays an important part in modern vehicles. When the ignition coil becomes faulty, the engine will not run and it can even stall.
It is important for car owners to properly identify when the ignition coil goes bad so they can get it fixed by a certified mechanic as soon as possible. Some of the most common signs that the ignition coil is failing include the below.
The Check Engine Light Turns On
When your ignition coil stops working, the check engine light will turn on. If you have the right OBD-II diagnostic scanner, you can read the code for this problem. A trusted mechanic can check for this as well. Since all cars are a little different, there can be several codes when it is diagnosed. Sometimes the code for an engine misfire will display, since it is one of the symptoms of an ignition coil not working.
The Engine Misfires
If the ignition coil in your BMW stops working, it is likely the engine will start to misfire. A car owner will start to notice the misfiring engine when there is a jerking or sputtering feel when you drive the BMW, even if you drive at normal speeds. When the car stops, a misfire from the failing ignition may cause the vehicle to shake and vibrate.
The BMW Starts Hard
To get the BMW’s engine to start, it needs a spark at the exact right time. If the spark plug does not get the right voltage to make that spark, the car can have a hard start. This is a good sign that the ignition coil is not working properly. This problem may potentially happen with any coil configuration, though it is more likely to occur in engines with one ignition coil present.
Bad Gas Mileage
Sometimes the ignition coil will fail completely, and other times it will fail intermittently. This means that the coil can slowly go bad over time. Car owners should pay attention, even when the vehicle seems to run normally. Watch to see how your gas mileage is doing. If you drive carefully and the gas mileage is still not doing well, this could be a sign that something is wrong with the ignition coil.
When your BMW has a bad ignition coil, it is more likely to run roughly. This means that when your car is idling, you may notice that it has a rough sound or feel inside the cabin. It may also have a reduction in power on acceleration, which can be dangerous when merging into traffic. The failing ignition coil can make your acceleration more sluggish, and at times, your vehicle may even stall.
Your engine should not backfire at all. The bang happens when any unburned fuel starts to escape out of your exhaust system. While there are a few causes of backfires, the ignition coil is one of the most common one. If you do not address the backfires quickly, then they can cause some damage to the engine and make it nor work.
If you suspect that the ignition coil does not work, you need to visit a certified mechanic as soon as possible. The engine will not get the spark that it needs to start the car if the ignition coil stops working completely.
A certified mechanic can check the ignition coil to see if it is faulty and advise you of the proper course of action. Then, at your request, they will fix the problem and give you a new ignition switch so your BMW is running smoothly without causing damage to the engine.
When the ignition coil starts to fail in your BMW, it can spell trouble for getting your car to move at all. At Autowerks, our qualified mechanics are here to provide you with the repair and maintenance that your BMW needs. We currently serve the residents of Columbus, Dublin, New Albany, Worthington, and Powell, OH with all your car repair needs. Contact us today to schedule an appointment with one of our certified mechanics. We look forward to earning your repeat business.