Parts for your 2019 Nissan Serena-Ignition coils

Ignition Coils on the 2019 Nissan Serena: What They Do and When to Service Them

The 2019 Nissan Serena is a popular multi-purpose vehicle in Australia, known for its spacious interior and reliable performance. When it comes to the engine and ignition system, the question often arises: does the 2019 Serena use ignition coils, and what role do they play? The short answer is yes, the 2019 Nissan Serena is fitted with ignition coils as part of its petrol engine setup.

Ignition coils are an essential component in modern petrol engines, including the one found in the 2019 Nissan Serena. Their primary job is to convert the low voltage from the vehicle's battery into the high voltage required to create a spark at the spark plugs. This spark ignites the air-fuel mixture inside the engine cylinders, causing the engine to run smoothly and efficiently.

On the 2019 Serena, this function is critical because the engine management system relies on precise timing of these sparks to control combustion. Without effective ignition coils, the spark plugs would not fire properly, resulting in starting problems, misfires, or poor fuel efficiency. So these coils play a crucial role in the overall performance and drivability of the Serena.

Over time, ignition coils may wear out or become less efficient. This can happen due to heat exposure, electrical surges, vibration, or general ageing. When an ignition coil starts to fail, drivers might notice symptoms such as a rough idle, engine misfires, hesitation on acceleration, or even a check engine light. These are clear signs that the ignition coils need a check-up or replacement.

Maintaining the ignition coils on a 2019 Nissan Serena is pretty straightforward. Routine servicing should always include an inspection of the ignition system, including the coils. Technicians will usually look for signs of damage, corrosion, or cracks in the coil casing, as well as test their electrical resistance to ensure they are performing correctly.

If an ignition coil is found to be faulty, replacing it promptly is important. Ignition coils are relatively affordable and simple to swap out, but ignoring them can lead to bigger engine problems, decreased fuel economy, and even damage to the catalytic converter due to unburnt fuel. Replacing coils in matched sets is sometimes recommended to keep the engine firing evenly, especially if several coils show wear.

Some might wonder if there's a difference between older ignition systems and the one in the 2019 Nissan Serena. Older vehicles often used a single coil feeding multiple cylinders via a distributor. However, the Serena employs a coil-on-plug (COP) setup, where each spark plug has its own ignition coil mounted directly on top. This design allows for more precise spark timing, improved performance, and reduced maintenance needs.

With coil-on-plug technology, replacing a faulty coil is even more straightforward since each coil is an individual component. It also means that if one coil fails, only that coil needs replacement rather than an entire unit. This modular approach helps reduce repair costs and downtime for the vehicle's owner.

For those servicing the 2019 Nissan Serena, it is important to use genuine parts or high-quality aftermarket ignition coils designed to meet Nissan's specifications. Poor quality coils can lead to intermittent faults, reduced lifespan, and even engine damage. Additionally, when installing new ignition coils, ensuring they are seated correctly and the electrical connectors are clean and secure plays a big part in reliable performance.

While ignition coils don't require frequent replacement like oil or brake pads, regular inspection during routine servicing will help catch potential problems early. Most coils in the Serena can last anywhere from 100,000 to 150,000 kilometres under normal driving conditions. However, extreme heat or harsh driving environments may reduce their lifespan.

In short, ignition coils are a vital cog in the 2019 Nissan Serena's engine system. They ensure the smooth and efficient firing of spark plugs, which in turn keeps the engine running at its best. Regular inspection and timely replacement of these coils can prevent engine misfires, maintain fuel efficiency, and avoid more costly repairs down the track. Whether it is during a routine service or when troubleshooting a misfire-related issue, considering the health of the ignition coils is fundamental to keeping the Nissan Serena on the road and running reliably.