Parts for your 2009 Subaru Exiga-Fuel cap

2009 Subaru Exiga Fuel Cap

Technical sources confirm the 2009 Subaru Exiga uses a conventional screw-type, tethered fuel-filler cap, not a capless system. This is supported by the Subaru Exiga Owner’s Manual (2008–2009 YA series) showing a screw-on cap at the filler neck, the Factory Service Manual’s Emission Control (EVAP) section describing the sealed fuel system’s need for a correctly closing cap, and Subaru’s FAST electronic parts catalogue for YA5/YA9, which lists the fuel-filler cap as a serviceable, replaceable component.

On this Exiga, the fuel cap does more than stop petrol splashing out. It seals the tank so the EVAP system can capture vapours, reduces odours, keeps dust and water out on rough Kiwi and Aussie roads, and maintains correct tank pressure so the car’s diagnostics can run their leak tests. The ratcheting “click” action is there to help achieve the right seal without over‑tightening, while the tether keeps the cap handy at the bowser.

As part of regular servicing, the cap is worth a quick once-over. Check the rubber seal for cracks, flattening, or nicks, make sure the ratchet clicks cleanly, and confirm the tether isn’t frayed. If there’s a faint fuel smell around the rear guard after refuelling or a loose-fit feel, the cap is a prime suspect. A worn cap can trigger EVAP fault codes and a check engine light, even if the car otherwise drives fine.

Common hints it’s time to replace the cap include a fuel odour after parking, a cap that won’t “click” home, or intermittent EVAP codes such as P0442 or P0456 after refuelling. Quick servicing tips:

• Wipe the filler neck and cap seal with a clean, dry cloth.
• Tighten until several clear clicks are heard.
• If the light appears after a loose cap, refit and drive a few cycles to allow the system to self-check.

When replacing, stick with a genuine Subaru cap or a high-quality unit specified for the Exiga’s EVAP system. Avoid generic “vented” caps not intended for modern sealed systems. Choosing the correct cap preserves emissions performance, prevents nuisance warnings, and keeps the Exiga running sweetly between services.

Popular questions about the 2009 Subaru Exiga fuel cap

Does the 2009 Subaru Exiga use a capless filler?
The Exiga of this era uses a screw-on, tethered fuel cap. Tighten it until it clicks several times to ensure a proper seal and happy EVAP checks.

What are the signs the fuel cap needs replacing?
Fuel odour near the rear quarter, a cap that won’t click, or EVAP-related check engine lights (often P0442/P0456) after refuelling point to a tired seal or faulty ratchet. If cleaning and correctly tightening don’t help, fit a new cap.

Can a locking fuel cap be used on a 2009 Exiga?
Yes—provided it’s specified for the Exiga’s EVAP system and seals to OEM standard. Avoid universal or vented types. If in doubt, go genuine to maintain emissions compliance and avoid nuisance warnings.