Parts for your 2022 Subaru Xv-Spark plugs

2022 Subaru XV spark plugs — what they do and when to replace them

Yes, the 2022 Subaru XV uses spark plugs. That applies to both the 2.0‑litre petrol boxer and the e‑Boxer hybrid, as they’re spark‑ignition petrol engines. Subaru’s technical literature—the 2022 XV/Crosstrek Owner’s Manual, the Maintenance and Warranty booklet for AU/NZ, and the FB20 series service manual—specifies long‑life iridium spark plugs and a scheduled replacement interval.

Spark plugs are the small but mighty parts that ignite the air–fuel mix inside the XV’s boxer engine. When they’re in good nick, the engine fires up quickly on cold mornings, idles smoothly, pulls cleanly up hills, and sips fuel more efficiently. Worn plugs can make the XV feel a bit doughy off the mark, rough at idle, and thirstier than usual, and can even trigger a check‑engine light for misfires.

Subaru specifies long‑life iridium plugs for the 2022 XV, chosen for their durability and consistent spark under the higher demands of modern engines. The service schedule typically calls for replacement around 100,000 kilometres or 5 years (whichever comes first). It’s worth checking the service booklet for the exact interval for the specific trim, especially if the vehicle sees lots of short trips, dusty conditions, or heavy loads—those can bring the timeline forward.

When it’s time to service the plugs, replacing all four together is the go. On the XV’s boxer engine, access is tighter than on an inline engine, so the right tools and patience matter. The plugs come pre‑gapped from the factory (fine‑wire iridium tips don’t like being re‑gapped), and they should be torqued to the Subaru specification with clean, dry threads—plated shells usually don’t need anti‑seize. Inspect coil boots for cracking, use a smear of dielectric grease on reassembly, and make sure the engine is stone cold before starting. If DIY isn’t your thing, any good workshop will handle it as part of scheduled servicing.

• Common signs it’s time: hard starting, rough idle, hesitation, higher fuel use, or a flashing check‑engine light for misfire (often P0300–P0304).
• Best practice: stick with genuine or quality equivalent iridium plugs matched to the FB20 engine and follow the service manual torque spec.

Kept fresh, spark plugs help the XV run crisply and keep fuel bills and emissions in check—easy wins for day‑to‑day driving around Aotearoa and Australia.

Popular questions about 2022 Subaru XV spark plugs

What type of spark plugs does a 2022 Subaru XV use?
The 2022 XV runs long‑life iridium spark plugs specified by Subaru for the FB20 boxer engine (including e‑Boxer). These are fine‑wire, high‑performance plugs designed for extended intervals and consistent ignition. Subaru’s Owner’s Manual and the service manual list the exact specification, quality equivalents from major brands are acceptable if they match the OE heat range and design. The gap is factory‑set—don’t try to adjust it.

How often should the spark plugs be replaced?
Under normal conditions, plan on about 100,000 km or 5 years, whichever comes first, as outlined in Subaru’s AU/NZ maintenance schedule. If the XV does frequent short trips, lots of idling, tows regularly, or drives in dusty areas, earlier checks and replacement can help keep it running sweetly and avoid misfires.

Can the plugs be changed at home?
Yes, with the proper tools and care. The boxer layout means access is snug under the bonnet. Allow the engine to cool completely, clean around the plug wells, remove the ignition coils, fit the new iridium plugs, and torque them to spec. If that sounds fiddly, a workshop can handle the job quickly during a routine service.