Parts for your 2013 Toyota Crown-Ignition coils

2013 Toyota Crown ignition coils: fitted, essential and worth keeping in top nick

Based on Toyota’s technical literature for the S210-series Crown (2012–2018), including the workshop manual and Toyota EPC, every 2013 Toyota Crown petrol variant runs a coil-on-plug ignition system. That covers the 2.5L 4GR-FSE V6, 3.5L 2GR-FSE V6, and the 2.5L 2AR-FSE hybrid four-cylinder. DENSO/Toyota documentation for these engines specifies one ignition coil per cylinder, so ignition coils are absolutely relevant on this model.

The ignition coils’ job is to step up battery voltage to a high-voltage spark at each spark plug, right when the ECU commands it. With coil-on-plug, each cylinder gets its own coil for sharp timing, strong spark energy and better reliability. Depending on engine, a 2013 Crown will have four coils (2AR-FSE hybrid) or six coils (4GR-FSE/2GR-FSE V6s).

For servicing, coils aren’t a routine replacement item like filters, but they should be inspected whenever spark plugs are due (typically around the 100,000 km mark with iridium plugs, check the service book). A quick visual for cracked housings, heat damage, or oil in the plug tubes is worthwhile, along with a scan for misfire codes (P0300–P0306) if there’s any rough running.

Common signs a Crown coil is on the way out include a lumpy idle, sluggish take-off, higher fuel use, or a flashing Check Engine Light under load. If a single cylinder is flagged, swapping that coil to another cylinder is a handy diagnosis trick. If the fault follows the coil, it’s time for a new one.

• Keep water and degreasers away from the coil connectors when cleaning.
• Fix any rocker/valve cover gasket leaks—oil in the plug wells can kill coils.
• When changing plugs, blow out the wells before removing coils to avoid debris drop-in.
• Use quality OEM-equivalent coils, cheapies often don’t last.

Replacement is straightforward: remove the engine cover, unplug the coil connector, undo the small hold-down bolt, then twist and lift the coil. Refit carefully so the boot seats fully on the plug, reconnect the harness, clear any codes, and road test. There’s no hard rule to replace all coils at once, on higher-kilometre Crowns, some owners choose to replace the lot to avoid repeat visits, but replacing the confirmed faulty unit with a reliable brand is perfectly acceptable.

Popular questions

How many ignition coils does a 2013 Toyota Crown have?
It depends on the engine. V6 models (4GR-FSE 2.5L and 2GR-FSE 3.5L) have six coils—one per cylinder. The hybrid four-cylinder (2AR-FSE) has four coils. All are coil-on-plug units.

What are the symptoms of a failing ignition coil on a Crown?
Expect misfires, rough idle, hesitation under load, poorer fuel economy, and a Check Engine Light—often with codes like P0301–P0306. If the issue appears mainly in the wet, moisture intrusion at the coil connectors or boots could be part of it.

Should ignition coils be replaced in sets?
It’s not mandatory. Replacing only the faulty coil is common practice. On high-kilometre cars where several coils are original, some owners opt to replace the full set to minimise downtime. Always pair coil checks with correct spark plug condition and gap.