Parts for your 2016 Subaru Legacy-Ignition coils

Ignition Coils on the 2016 Subaru Legacy: What You Need to Know

The 2016 Subaru Legacy comes equipped with ignition coils, making them an essential component of the car's ignition system. Ignition coils play a crucial role in ensuring the engine starts smoothly and runs efficiently. Understanding how they work and when to replace or maintain them can help keep the Legacy performing at its best.

Put simply, ignition coils transform the 12-volt power from the car's battery into the much higher voltage needed to ignite the fuel-air mixture inside the engine cylinders. Without this increased voltage, the spark plugs wouldn't be able to produce a strong enough spark to start combustion. Think of ignition coils as the spark's power amplifiers, making sure everything fires up properly.

On the 2016 Subaru Legacy, ignition coils are typically mounted directly on top of each spark plug. This design is often referred to as "coil-on-plug" and helps improve reliability and efficiency by reducing the number of parts and potential failure points like spark plug wires. Because each cylinder has its own ignition coil, if one goes faulty, your engine might run rough or misfire, which can lead to performance drops and potentially more severe issues if left unattended.

When it comes to maintenance, ignition coils generally don't require regular servicing as a standalone part. However, it's a good idea to check them as part of a routine tune-up, particularly if the vehicle begins to show symptoms like rough idling, hesitation on acceleration, or engine warning lights related to misfires. Faulty ignition coils can cause poor fuel economy and reduce overall engine performance, so addressing them promptly is always the best move.

Replacing ignition coils on the 2016 Subaru Legacy is a straightforward task for most mechanics and experienced DIYers. Since they are coil-on-plug units, replacing one means simply disconnecting the electrical connector, removing the bolt that holds the coil in place, and swapping out the faulty coil for a new one. It's a good idea to replace any damaged ignition coils with OEM or high-quality aftermarket parts to ensure consistent performance and avoid potential electrical issues.

One important tip is to inspect the spark plugs at the same time as the ignition coils. Worn or fouled spark plugs can put extra strain on the coils, potentially causing premature failure. Replacing spark plugs regularly according to Subaru's recommended service intervals means the ignition coils won't have to work harder than necessary, enhancing their lifespan.

The lifespan of ignition coils can vary depending on driving conditions and maintenance, but many last well beyond 100,000 kilometres. That said, harsh conditions like extreme heat, moisture, and dirt can affect their performance. If your 2016 Subaru Legacy is driven in tough environments or frequently idles for extended periods, keeping an eye on coil health becomes even more important.

In terms of cost, ignition coil replacement for the 2016 Legacy is generally affordable and doesn't require special tools. Because the coils are mounted right at the spark plugs, the process is less labour-intensive than older ignition systems that used long spark plug wires and a distributor. Most repair shops or dealerships offer ignition coil diagnostics and replacement as a common service, so finding support won't be an issue.

Overall, the ignition coils on the 2016 Subaru Legacy are vital for engine performance and should not be overlooked during servicing. Keeping them in good condition ensures the engine fires correctly, runs smoothly, and maintains fuel efficiency. Whether it's a routine service or when symptoms arise, paying attention to ignition coils is a smart way to avoid bigger car troubles down the track.