One of the most common problems encountered with BMW vehicles is ignition coil failure. While these parts are designed to last for years, there are some factors that can cause an early failure. In this article, we will discuss the reasons behind BMW ignition coil failure and how to spot the signs.

What Is The Ignition Coil In Your BMW?

The ignition coil of your BMW is a transformer that steps up the battery’s 12 volts to the thousands of volts needed to fire the spark plugs and start the engine. It is composed of two coils of wire around an iron core. The primary coil receives power from the battery, while the secondary coil sends it to the distributor and then onto each individual spark plug.

This stepped-up voltage creates a powerful spark at the spark plug, allowing for efficient combustion in the cylinders. That’s why it’s essential to keep your BMW’s ignition coil in good working order – without it, you can experience weak acceleration or even engine misfires and stalling.

Lack Of Maintenance

The primary cause of BMW ignition coil failure is a lack of maintenance. If left unchecked, dirt and debris can accumulate on the coils and create a build-up that causes them to malfunction over time. Additionally, electrical voltage often varies depending on engine speed or temperature changes which leads to excessive stress on the coils and eventually damages them beyond repair.

Wear And Tear

Apart from maintenance issues, another cause of BMW ignition coil failure is wear and tear due to age. The longer you keep your car on the road, the higher its chance of experiencing an ignition coil problem. Over time, these components will wear down as they are exposed to extreme temperatures or prolonged use which can lead to their breakdown.


Another factor that affects the lifespan of an ignition coil is vibration. When driving a vehicle with a high-performance engine or operating it in harsh conditions for too long, vibrations occur that can damage electronic components inside the engine, such as coils and spark plugs. This causes premature wear leading to costly repairs down the line.

Dust Accumulation

Dust accumulation on the ignition coils can also lead to a decrease in performance over time as it disrupts the normal operation and prevents proper combustion from occurring. To prevent such issues from arising in the future, regular checks should be conducted where necessary parts should be replaced regularly so as not to experience any untimely breakdowns of your BMW’s system while driving it around town or on long trips far away from home.

Bad Manufacturing

Finally, bad manufacturing can also contribute significantly towards premature ignition coil problems in some vehicles due to poor design or shoddy production methods employed during construction. This could lead to unreliable parts within your engine system that could fail unexpectedly at any given moment, which could cause you costly delays while traveling or even just sitting at home waiting for a repair job.

There are multiple factors that can cause BMW ignition coil failures, ranging from lack of maintenance, to faulty production materials that were used during the assembly stages. Proper care must be taken when dealing with these fragile electronic components if you want them to serve you faithfully for years upon end – otherwise, you might find yourself stranded miles away from home, with no way out short of calling tow trucks and spending hundreds on repairs.

Get Your BMW’s Ignition Coil Serviced At Peak Auto Today

Peak Auto in Apex, NC is the perfect destination BMW Ignition Coil Check for anyone wanting to have their BMW ignition coil serviced or replaced. Our certified technicians will work diligently to ensure quality repairs and fast turnaround times that keep your car running smoothly. Never worry about your BMW when our professionals are working on it; we are committed to giving you the best possible service and making sure you get back behind the wheel safely.

Peak Auto offers a top-notch service experience to all of our existing and potential customers. We understand that your time is valuable, which is why we make it easy for you to book an appointment with us. Whether you need a quick oil change or more extensive work on your vehicle, Peak Auto can be there to assist you in a timely and efficient manner. Don’t hesitate to book an appointment today at Peak Auto so we can get started on giving your car the professional care it needs.

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