How to Clean Car Trunk Smell: Step-by-Step Guide to a Fresh Ride
There’s nothing worse than popping open your car trunk and getting hit with an unpleasant odor. Whether it's spilled groceries, gym gear, or forgotten takeout, trunk smells can be stubborn—but with the right steps, you can get your car smelling fresh again. Here's how to clean your car trunk smell effectively and prevent it from returning.
What Causes Bad Smells in Your Car Trunk?
Before you tackle the odor, it helps to understand the source. Common culprits include:
Spilled liquids (milk, soda, gasoline)
Food waste or leftovers
Damp or wet items (towels, clothes)
Mold or mildew
Pet accidents or fur
Garbage or old grocery bags left behind
Identifying what caused the smell will guide how you clean it—and how deep you need to go.
Step-by-Step: How to Remove Car Trunk Odor
1. Clear Everything Out
Start by removing everything from your trunk, including mats, storage bins, and tools. Don’t forget to check under the mat for any hidden messes.
2. Vacuum Thoroughly
Use a powerful vacuum cleaner to get rid of debris, crumbs, or pet hair. Pay special attention to the corners and seams—this is where gunk builds up.
Pro Tip: Use a crevice tool to get into tight areas and a brush attachment for carpeted surfaces.
3. Deep Clean the Carpets
Mix a solution of water and mild detergent (or use an automotive carpet cleaner). Use a stiff brush or cloth to scrub the trunk mat and lining.
For organic spills (milk, food), use an enzyme-based cleaner like Nature’s Miracle or Rocco & Roxie. These break down odor-causing bacteria instead of just masking them.
For gasoline or chemical spills, use a degreasing agent and air the trunk thoroughly afterward.
Rinse with a clean damp cloth and allow it to dry fully—moisture leads to mildew, which causes more odors.
4. Treat with Baking Soda or Charcoal
Sprinkle baking soda over the carpet and leave it overnight to absorb any lingering smells. Activated charcoal bags are also effective odor neutralizers and can be reused for months.
5. Use a Wet/Dry Vacuum or Steam Cleaner (Optional but Effective)
If the odor persists, use a steam cleaner or a wet/dry vac to extract deep-seated dirt and odors. You can rent one or hire a professional if needed.
6. Disinfect and Deodorize
After cleaning, use a non-toxic disinfecting spray (like Lysol or a vinegar-water mix) to kill any remaining bacteria. Then, use a trunk-safe air freshener or odor eliminator.
Avoid overpowering scents—they may only mask the issue rather than solve it.
Bonus: How to Prevent Trunk Odors in the Future
Once your trunk is fresh, keep it that way:
Use rubber trunk liners to catch spills.
Store gym bags, shoes, or gear in sealed bins.
Never leave food or trash in your trunk overnight.
Use a dehumidifier bag if you live in a humid climate.
Add a charcoal bag or baking soda box in the corner of your trunk to absorb moisture and odor.
When to Call in the Pros
If the smell persists after a deep clean, especially if it’s chemical, mold, or rodent-related, it might be time for a professional detailer. They have tools like ozone machines that can fully neutralize odors at the molecular level.
Final Thoughts
Cleaning your car trunk smell isn’t just about freshening up—it’s about maintaining the hygiene and value of your vehicle. With the right tools and a little elbow grease, you can get rid of even the most stubborn odors and keep your ride smelling clean and crisp.