Parts for your 2020 Toyota Rav4-Ignition coils

2020 Toyota RAV4 Ignition Coils

Based on Toyota service information and parts catalogues, plus Denso and NGK application guides, the 2020 Toyota RAV4 (including 2.5‑litre A25A‑FKS petrol, A25A‑FXS hybrid, and market‑specific 2.0‑litre M20A‑FKS) uses coil‑on‑plug ignition coils. Each cylinder has its own coil mounted directly on the spark plug.

Ignition coils on the 2020 RAV4 exist to turn the 12‑volt battery supply into the high voltage needed to fire the spark plugs cleanly under all loads. With Toyota’s efficient Dynamic Force engines, accurate spark is critical for smooth idle, good fuel economy, and low emissions. Even hybrids still rely on these coils whenever the petrol engine runs.

There’s no scheduled coil replacement interval in the maintenance book, coils are generally “fit and forget”. That said, they live in a hot environment and can age over time. Smart servicing is to inspect coils whenever spark plugs are replaced (typically at long intervals with iridium plugs) or if any misfire fault codes pop up.

• Common signs they’re tired: rough idle, hesitation under load, poor fuel economy, hard starting, or the MIL on with codes like P0300–P0304.
• Good practice: keep the coil boots clean and dry, check for oil in the plug tubes (a rocker cover gasket issue), and ensure connectors are snug with no broken wiring.

If a coil fails, replacing only the faulty unit is fine, but on higher‑kilometre vehicles some owners choose to replace the set for consistency. Stick with quality OEM‑equivalent parts (Denso is factory on many Toyotas). When fitting, seat the boot squarely on the plug, route the harness as per factory, and tighten the hold‑down bolt to the workshop‑manual spec. Clearing codes and road‑testing under load helps confirm the fix.

Because misfires can damage the catalytic converter if ignored, it’s worth addressing coil issues promptly. For RAV4s that tow, see lots of short trips, or live in hotter regions of Australia and New Zealand, a quick ignition system check during routine services can save headaches later. Paired with fresh plugs at the correct interval, healthy coils keep the RAV4 running sweet, sipping fuel, and ready for the next weekend mission.

• How many ignition coils does a 2020 RAV4 have?
• How long do ignition coils typically last on a 2020 RAV4?
• What’s the best way to diagnose a bad coil on a RAV4?

How many ignition coils does a 2020 RAV4 have?
Every 2020 RAV4 petrol and hybrid uses a coil‑on‑plug setup: one coil per cylinder. That means four coils on the 4‑cylinder engines fitted to this model year.

How long do ignition coils typically last on a 2020 RAV4?
There’s no fixed interval, many last well past 150,000 km. Heat, vibration, and oil contamination can shorten life. If the engine runs smoothly and there are no misfire codes, they’re generally fine to leave in service.

What’s the best way to diagnose a bad coil on a RAV4?
Scan for misfire codes (e.g., P0302 for cylinder 2), check live misfire counters, and inspect the coil and boot. Swapping the suspect coil to another cylinder to see if the misfire follows is a quick, reliable test, alongside checking the spark plug and connector.