🔧 Seltos - Fuel Cap Replacement

On your Seltos, “fuel cap” can mean one of two setups: a traditional screw-on gas cap, or a capless fuel filler (no removable cap). The correct repair depends on what you see when you open the fuel door.

Difficulty Level: Beginner | Estimated Time: 0.1-0.3 hours

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⚠️ Safety & Precautions

• ⚠️ Work in a well-ventilated area away from flames or sparks.
• ⚠️ Turn the engine OFF before opening the fuel door.
• ⚠️ If you smell strong fuel odor, stop and inspect for leaks before driving.
• ⚠️ Battery disconnect is not required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Shop towel
• Flashlight

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel filler cap (correct for your Seltos) - Qty: 1

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📋 Before You Begin

• Park on level ground and turn the ignition OFF.
• Open the fuel door and look at the filler opening:
• 🧠 If you see a round cap you can twist off, follow Steps 1–4 below.
• 🧠 If you do NOT see a removable cap (you see a spring-loaded flap), skip to the “Capless Note” in Step 4.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the fuel door

• Use your hand to open the fuel door.
• Use a flashlight to confirm whether you have a screw-on cap or a capless flap.

Step 2: Remove the old screw-on fuel cap (if equipped)

• Put on nitrile gloves.
• Turn the cap counterclockwise by hand until it comes off.
• Use a shop towel to wipe dirt off the cap area (don’t push debris into the opening).

Step 3: Install the new screw-on fuel cap

• Thread the new cap on by hand clockwise.
• Tighten until you feel/hear it fully seat (many caps “click”). Snug by hand—don’t over-tighten.
• If your cap has a tether (strap), make sure it isn’t twisted and won’t get pinched by the fuel door.

Step 4: Close up and confirm correct setup

• Close the fuel door firmly by hand.
• Capless Note: If your Seltos has a spring-loaded flap and no removable cap, there is no “fuel cap” to replace. If you’re getting a “Check fuel cap” / EVAP-type warning on a capless system, the issue is usually the seal or the capless filler assembly, which is a different repair.

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✅ After Repair

• Start your Seltos and confirm there’s no fuel smell around the fuel door area.
• If you had a warning light related to the fuel cap, it may take a few drive cycles to turn off after the system passes a self-test.
• If the light stays on, the problem may not be the cap (it could be an EVAP leak elsewhere).

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💰 DIY vs Shop Cost

Shop Cost: $60-$150 (parts + labor/diagnostic)

DIY Cost: $15-$45 (parts only)

You Save: $45-$105 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.2-0.5 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.