What are the Symptoms of an Ignition Coil Failure in a Volkswagen?

Posted on April 9, 2022 by Carson Wileman

Ignition coil failure can occur in any modern car, and your Volkswagen is no exception. The ignition coil is a tube-shaped piece that links the spark plug to the engine. It is in charge of sending a high-voltage current to the spark plug. It may seem insignificant, yet it is an essential component of your Volkswagen’s engine.

Coils are so vital that your engine will start or run if you don’t have a set. When an ignition coil fails, it can result in various mechanical and performance difficulties. Let’s dig into some symptoms of ignition coil failure in your Volkswagen.

Symptoms of Ignition Coil Failure in Volkswagen

The engine of your Volkswagen may not start or run efficiently if the ignition coil fails. If this continues, the engine will develop other issues. As a result, it is always best to replace a faulty ignition coil as soon as possible. One of your ignition coils may be failing if you experience any of the following symptoms:

Difficulty Starting the Engine

Your Volkswagen engine will not start if the ignition coil has entirely failed. The spark plugs will not receive the power they require to ignite your fuel if the ignition coils are not functioning properly, resulting in a no-start situation.

Illuminated Check Engine Light

The check engine light is designed to alert you when something is wrong with your vehicle’s engine. The check engine light will illuminate if your Volkswagen has performance issues, such as misfires and hard starts. The same will happen if you have an ignition coil problem. Because various issues can trigger the light, it is advisable to have the error codes examined by a professional technician.

Engine Misfiring or Stalling

There could be an issue with your ignition coil if your engine misfires or stalls while idling, halting abruptly, or accelerating. A misfire, which sounds like coughing or sputtering and feels like a shock or severe vibration, signals that one of the engine’s cylinders is not firing effectively.

When your Volkswagen engine is stressed, misfires are more likely to occur, and they can cause emissions. This is why excessive emissions and a gas-like odor from the exhaust system are signs of a faulty ignition coil. Because of the uneven sparks generated by the spark plug due to the damaged ignition coil, your vehicle may stall.

Poor Fuel Economy

Poor fuel economy is another symptom of a faulty ignition coil. The ignition coil may have failed if your Volkswagen is getting much less mileage than usual.

Backfiring and Poor Catalytic Converter Performance

It’s not only unpleasant when your exhaust emits black smoke and smells like gasoline; it could also be a sign of ignition coil failure. When unused gasoline is expelled from the exhaust system, backfiring occurs. If left unchecked, your exhaust system, including the catalytic converter, could suffer severe damage.

Vibrations and Jerking

Vibrations, when your Volkswagen is idle, is another symptom of a failed ignition coil. When you step on the pedal to increase speed, you will also feel your car hesitate and jolt ahead. When faced with situations like this, it is best to act quickly and get expert assistance from a trained Volkswagen mechanic to avoid costly repairs.

Loss Of Power

Vehicles with faulty ignition coils tend to run rough. This means you could notice a harsh sensation or sound when your Volkswagen is idle. Your vehicle’s power may also be affected. As a result, a faulty ignition coil could cause slow acceleration.

Keith Cox Autobahn Will Help

To keep your Volkswagen running smoothly, you need ignition coils that function effectively. It is vital to keep an eye out for faulty ignition coil symptoms. Also, changing your ignition coils according to the manufacturer’s instructions and with the help of a professional will help you avoid car trouble.

At Keith Cox Autobahn, we are privileged to have long-term, devoted technicians that are qualified and proficient in repairing and maintaining German vehicles, including your Volkswagen.

We have been providing excellent service to Volkswagen owners in Bellingham, WA, and its surrounding regions for many years, with the latest factory tools & equipment. Please call or visit our shop for your next service appointment.