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BMW Ignition Coil For Sale

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One hot, summer morning you are getting ready to head out to the beach to cool yourself down. You have everything ready and are looking forward to spending your day cooling off. You pack up your BMV and are ready to go. You get in, put your seat belt and go to start your car. You try it once and it won’t turn on. You try it again and start to hear some spark noises like its trying to turn on but it keeps misfiring. You try a couple more times and realize that your BMW is not going to turn on and your beach day will instead be spent towing your BMW over to the mechanic. There are a few parts that may have made your engine not start. One part that could be the culprit is BMW ignition coil.

Your BMW ignition coil set has two windings, a primary and a secondary. Both of these windings will surround the laminated iron core of the ignition coil. The primary winding has hundreds of turns of copper wire. The battery’s current will run through this primary coil. The primary coil is connected to the two external low voltage terminals on the coil. The positive coil will connect to the ignition switch and the negative coil will connect to the ignition module.

 
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The secondary winding will have thousands of wires that will be insulated for high voltage by enamel on the wires. The coil usually gets inserted into a metal can or a plastic case, which has insulated terminals for both high and low voltage connections. A current from the battery builds up in the primary winding when the contact breaker closes. This produces a magnetic field in the core because of all the current flowing. If the electronic ignition is disrupted suddenly this is called breaker points. These breaker points are what allow the coil to function correctly. When the circuit breaks a magnetic field collapses and the secondary coil is take over by the magnetic field. This can cause high-voltage currents of up to 100,000 volts to rush through.

So as you can see your BMW ignition coils are dealing with a lot of high power voltage so there are a few ways that can cause them to fail. One of the main ways your ignition coils can get damaged is from bad spark plugs or plug wires. This is because a short can be caused in the ignition coils when the spark plug is open or has too much resistance, which can burn through the coil’s internal insulation. Lastly, you must have a faulty ignition coil that doesn’t produce the spark necessary for it to work. All of these reasons call for a BMW ignition coil replacement.

Your BMW is not starting so you know you need to get the correct BMW replacement ignition coil. Your mechanic may charge you more for this part so make sure you take a look at our FAQ page to learn more about us and why we are the correct choice for you to get your ignition coil.

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