Parts for your 2016 Subaru Impreza-Ignition coils

Understanding Ignition Coils on the 2016 Subaru Impreza

The 2016 Subaru Impreza is a popular vehicle known for its reliability, practicality, and all-wheel-drive capability. When discussing the ignition system of this car, ignition coils definitely play a key role. Ignition coils are an important part of most modern engines, including the Impreza's boxer engine, which uses them to help generate the spark needed to ignite the air-fuel mixture inside the combustion chambers.

Ignition coils are essential components that convert the 12-volt power from the car's battery into the high voltage required to create a spark at the spark plugs. Without this spark, the engine cannot start or run properly. The 2016 Subaru Impreza employs coil-on-plug ignition coils, which means each cylinder has its own dedicated coil positioned directly on top of the spark plug. This design eliminates the need for traditional ignition wires and improves ignition efficiency and reliability.

The purpose of the ignition coil is straightforward but crucial. It is like a small transformer that increases voltage from the battery's low voltage to thousands of volts. This jump in voltage creates a strong spark capable of igniting the compressed air and fuel mixture inside the cylinder at the perfect time. This ignition process powers the engine and keeps it running smoothly.

For a car like the 2016 Subaru Impreza, the ignition coils have to be reliable and well-maintained. Since the vehicle uses coil-on-plug technology, any failure or degradation in an ignition coil can cause rough idling, misfires, reduced fuel efficiency, or even difficulty starting the engine. Fortunately, the coils themselves are generally long-lasting but do require attention after accumulating significant mileage or if there are specific symptoms.

When servicing the ignition coils on the Subaru Impreza, there are a few tips to keep in mind. Firstly, ignition coils don't usually need frequent replacement unless issues arise. However, during regular servicing or tune-ups, it's a good idea to visually inspect the coils for signs of damage such as cracking, corrosion, or carbon tracking, which can cause current leakage and misfires.

Engine misfires are one of the main reasons you might want to consider replacing ignition coils. In the 2016 Subaru Impreza, a misfire could trigger the check engine light and will generally be accompanied by rough engine running or loss of power. Many mechanics recommend swapping out all coils at once if one fails, as coils tend to wear out at a similar rate. But cost-conscious owners sometimes replace individual coils as they fail, depending on diagnostic results.

Maintenance tips for ignition coils generally involve minimal direct care, but the coil's lifespan can be prolonged by keeping the engine clean, ensuring spark plugs are in good shape, and using quality fuel. Faulty spark plugs can put extra strain on ignition coils, so replacing spark plugs per the manufacturer's schedule helps keep coils happy. For the 2016 Impreza, Subaru recommends replacing spark plugs approximately every 100,000 kilometres, which supports the ignition coils' longevity.

If replacement is needed, it is relatively straightforward on the 2016 Impreza. The coil-on-plug design means no fiddly ignition leads. Simply unplug the electrical connector, remove the fixing bolt, and lift the coil off the spark plug. When installing a new coil, it is crucial to ensure it seats properly on the spark plug and the connector clips in firmly. Using dielectric grease on the coil boot can also help prevent moisture intrusion and corrosion.

Because ignition coils are exposed to heat and engine vibration, they may eventually fail from internal short circuits, cracks, or coil winding degradation. Symptoms to watch out for include engine hesitation, uneven idle, increased fuel consumption, or a general lack of performance. If any of these symptoms occur, a quick diagnostic scan by a mechanic or auto parts store can check for misfire codes that point directly to the ignition coils.

For owners of the 2016 Subaru Impreza looking to maintain their vehicle's ignition system, ignition coils should be on the checklist during engine tune-ups and anytime there are drivability concerns. Keeping ignition coils in shape ensures that the engine runs efficiently, emissions remain low, and fuel economy stays optimal. Since the Impreza is designed to be a dependable daily driver, maintaining ignition coils along with spark plugs is a simple and effective way to avoid larger engine problems down the line.

In addition to helping the engine run smoother, healthy ignition coils also contribute to the vehicle's overall reliability. Subaru's engineering and build quality mean the ignition coils will usually go tens of thousands of kilometres without issue, but staying ahead of potential problems with regular inspection and maintenance is always a good idea for any Australian Impreza owner.