🔧 BRZ - Fuel Cap Replacement

Replacing the fuel cap on your BRZ is a quick job: you remove the old cap and install a new, correct-fit cap. A good sealing cap helps prevent fuel vapor leaks and can prevent an EVAP-related check engine light.

Difficulty Level: Beginner | Estimated Time: 0.1-0.2 hours

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⚠️ Safety & Precautions

• ⚠️ Work outside or in a well-ventilated area—fuel vapors are flammable.
• ⚠️ No smoking, sparks, or open flames near the fuel filler area.
• ⚠️ Replace the cap with the engine OFF.
• ⚠️ If you smell strong fuel odors afterward, stop driving and recheck the seal.
• ⚠️ Battery disconnect is not required.

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🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Safety glasses
• Clean shop towel
• Flashlight

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel cap (correct-fit for BRZ) - Qty: 1

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📋 Before You Begin

• Park on level ground and shut the engine off.
• Make sure you’re away from any ignition sources (heaters, cigarettes, tools that spark).
• Wipe dirt around the fuel filler opening with a clean shop towel so debris doesn’t fall into the filler neck.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the fuel door

• Open the fuel door on the rear quarter panel.
• Use a flashlight to look for dirt or damage around the filler area.

Step 2: Remove the old fuel cap

• Put on nitrile gloves and safety glasses.
• Twist the cap counterclockwise until it releases.
• Hang the cap on the built-in holder (if equipped) or hold it—don’t let it dangle and scratch paint.

Step 3: Inspect the sealing surface

• Use a flashlight to check the rubber seal (gasket) area on the cap and the sealing lip on the filler neck.
• Wipe the filler neck sealing area with a clean shop towel.
• Clean and dry seals best.

Step 4: Install the new fuel cap

• Thread the new cap on clockwise by hand.
• Keep turning until you feel it fully seat and click (if your replacement cap is a click-type).
• If it’s not a click-type, tighten firmly by hand—do not use tools.

Step 5: Close the fuel door

• Close the fuel door and make sure it latches normally.

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✅ After Repair

• Start the engine and check for any fuel smell around the filler area.
• If your check engine light was on due to a loose/bad cap, it may take a few drive cycles to turn off on its own.
• If the light stays on after a few days of normal driving, the car may need codes checked with a scan tool.

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💰 DIY vs Shop Cost

Shop Cost: $40-$120 (parts + labor)

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

You Save: $25-$75 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.1-0.2 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.