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2013 Mazda CX-5
2013 Mazda CX-5
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  • Guides
  • Mazda CX-5
  • 2013
  • How to Replace the Fuel Cap on a 2013 Mazda CX-5 (Fix EVAP Leak & Check Engine Light)
How to Replace Gas Cap 2007-2015 Mazda CX-9

How to Replace Gas Cap 2007-2015 Mazda CX-9

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Nitrile
Nitrile
Gloves
Safety
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Glasses
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How to Replace the Fuel Cap on a 2013 Mazda CX-5 (Fix EVAP Leak & Check Engine Light)

Step-by-step fuel filler cap replacement with tools, parts, safety tips, and post-repair checks

How to Replace the Fuel Cap on a 2013 Mazda CX-5 (Fix EVAP Leak & Check Engine Light)

Step-by-step fuel filler cap replacement with tools, parts, safety tips, and post-repair checks

Orion
Orion

🔧 CX-5 - Fuel Cap Replacement

Replacing the fuel cap on your CX-5 is a quick job: you’ll remove the old cap from the filler neck and install a new, correct-fit cap. A worn or incorrect cap can cause fuel smells and may trigger an evaporative emissions leak warning.

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


⚠️ Safety & Precautions

  • ⚠️ Work outside or in a well-ventilated area; fuel vapors are flammable.
  • ⚠️ Turn the engine OFF and keep cigarettes/sparks/flames away.
  • ⚠️ Don’t top off fuel after the pump clicks; it can damage the EVAP system.
  • Battery disconnect is not required.

🔧 Required Tools

You'll need the following tools for this repair:

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

🔩 Required Parts

HowToo sells all the parts you need for this repair:

  • Fuel filler cap (OEM-style, tethered) - Qty: 1

📋 Before You Begin

  • Park on level ground, set the parking brake, and shut the engine off.
  • Use nitrile gloves to keep fuel residue off your skin.
  • Have a clean shop towel ready to wipe the sealing surface.

🔨 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 if lighting is poor.

Step 2: Remove the old fuel cap

  • Turn the cap counterclockwise until it releases, then pull it off.
  • If your cap has a tether (a small strap that keeps it attached), let it hang without twisting it.

Step 3: Inspect and clean the sealing area

  • Use a flashlight to inspect the filler neck lip (where the cap seals).
  • Wipe the sealing surface with a clean shop towel.
  • Tip: Dirt here can cause EVAP leak codes.

Step 4: Install the new fuel cap

  • Align the new cap with the filler neck and turn it clockwise.
  • Keep turning until you feel/hear it “click” and it stops tightening normally (do not force past that).
  • If the cap is tethered, make sure the tether isn’t pinched or twisted.

Step 5: Close the fuel door

  • Close the fuel door firmly until it latches.

✅ After Repair

  • Start the engine and confirm there’s no fuel smell around the filler area.
  • If you had a Check Engine Light related to a loose cap, it may take a few drive cycles to turn off on its own after the cap is properly installed.
  • If the light stays on, a scan for EVAP codes is the next step.

💰 DIY vs Shop Cost

Shop Cost: ₹500-₹1,500 (parts + labor)

DIY Cost: ₹300-₹1,200 (parts only)

You Save: ₹200-₹800 by doing it yourself!

Shop labor rates vary but typically run ₹800-₹2,000/hour. This repair takes a shop approximately 0.1-0.3 hours.


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