Parts for your 2013 Nissan Serena-Fuel cap

2013 Nissan Serena fuel cap — what it does and how to look after it

The 2013 Nissan Serena (C26, including S-Hybrid petrol variants) uses a conventional screw-on fuel-filler cap, so the part is absolutely relevant for this model. Nissan’s Serena C26 Owner’s Manual (Instrument and Controls – Fuel-filler cap) specifies tightening the cap until it clicks, and the C26 Service Manual (EC/EVAP sections) explains that the evaporative emissions system relies on a correctly sealing cap, a loose or faulty cap can trigger a warning or check engine light. Nissan’s parts catalogue for C26 petrol models also lists a dedicated, tethered fuel-filler cap. These technical sources confirm the Serena is not capless and requires a proper cap to operate as designed.

On this Serena, the fuel cap does more than just cover the hole. It seals the tank to stop petrol vapour escaping, keeps dust and water out, and allows the EVAP system to run its leak checks without false alarms. A healthy cap helps with emissions compliance and can save a lot of hassle chasing EVAP leaks that are really just a tired seal.

As part of regular servicing, it’s smart to give the cap a once-over. Check the rubber seal for flattening, cracks, or hardening, make sure the tether isn’t split, and confirm it tightens with a few audible clicks. If there’s a fuel smell around the left rear quarter after a fill, the cap doesn’t click, or the dash shows an EVAP-related fault after refuelling, the cap is a prime suspect.

Replacement is straightforward and inexpensive. Sticking with a quality, Serena-compatible cap keeps the correct relief pressure and sealing profile for the EVAP system. Many roadworthy/WoF checks in AU/NZ expect a secure, sealing cap, so it’s worth fitting a proper unit rather than a generic that may not seal perfectly.

• Wipe grit from the filler neck before refuelling.
• Tighten until it clicks, don’t over-crank it past the clicks.
• Inspect the seal at each service or at least yearly, consider replacement every 5–7 years or at first sign of wear.
• If a check engine light appears after fuelling, re-seat the cap, drive a few trips, and scan for EVAP codes if it persists.

A good fuel cap is small money that protects the Serena’s emissions gear and keeps refuelling drama-free.

Popular questions about 2013 Nissan Serena fuel caps

What type of fuel cap does the 2013 Serena use?
The 2013 Serena uses a tethered, screw-on, non-vented unleaded petrol cap that clicks when correctly tightened. It’s designed to seal the EVAP system on the C26 platform.

Why does the check engine light come on after refuelling?
Most commonly, the cap wasn’t tightened until it clicked, or its seal is worn. Reseat and click it in, then drive a few short trips. If the light stays on, have the EVAP system checked for leaks or a sticking purge/vent valve.

How often should the fuel cap be replaced?
There’s no strict interval, but inspecting at every service is wise. Many owners replace the cap’s seal or the whole cap around 5–7 years, or sooner if there’s fuel odour, no clicking action, visible cracks, or recurring EVAP codes.