How to Get Rid of Fish Smells in the Car?

The awful smell, like a rotting fish, in your car can be hard to tolerate.

And the worst thing is it’s arduous to eliminate if it gets time to get attached to the upholstery of your car.

So, as soon as you notice these kinds of awkward smells do not overlook them.

Take the action fast by first knowing the cause of the smell and then eliminating the smell altogether from your vehicle.

Why Does My Car Smell of Fish?

Well, there can be many sources of fishy smells present inside the cars.

It can be your food or of your pet’s that has been left and had gone bad in a car.

Or sometimes it can be a dead animal carcass in your blower motor that may be causing the smell like a dead fish.

Without your notice, the animal may have crawled inside your car at night to find a warm shelter. And then has been obliterated when you switched on the car’s engine.

Many times, leaking antifreeze can also smell fishy if it gets inside your car through the heating system.

You will most likely experience the odor in this case when you switch on the heater.

Leakage can be due to a loose clamp or a hose turning bad.

The best solution is to get a complete check-up of your vehicle by a mechanic nearby who can help get you the answers you need for fixing the fish smell in your car.

Alternatively, if you have identified the real culprit, you can undertake the odor-eliminating task yourself in a DIY way.

Getting Rid of Fish Smell in Car Step-by-Step

Following are the steps by which you can easily get rid of fish smells in your car…

Step 1- Cover with newspaper

With some old newspapers or rags, cover the spillage in your car (like antifreeze).

If it’s something else smelling in the car, identify the source and cover it with newspaper as it can absorb the substance and smell quicker.

Step 2- Mix water and vinegar

In a small plastic bucket, mix 2 quarts of water and a cup of vinegar.

Then with an old rag scrub the area properly from where the fish smell is coming.

Vinegar being a natural odor absorber and cleaner will act fast by getting deep into the fibers of your car’s upholstery.

Step 3- Sprinkle baking soda

After using vinegar solution let it dry for half an hour.

Then sprinkle some baking soda on the areas with a fishy smell.

Baking soda will work very well to eliminate the remaining bad fish smell in your car, very much the same as it does in your refrigerator.

Step 4- Spray fabric refresher

After using baking soda, leave your car windows rolled down and allow some time to get the fish smell from your car to dissipate completely.

Use some fabric refresher spray inside the car for diluting the smell faster.

If you need to drive, consider driving your vehicle with the windows down and a vent open to the outside.

This will allow fresh air to circulate which will help to get of the contaminated air fast.

Step 5- Get the help of a professional

In case, if you still feel some light fishy smell inside your car you may need to get your upholstery shampooed and vacuumed.

A good professional cleaner at a car detailing shop can help you get the problem fixed forever.

So do not ignore the smell and get it removed completely by getting a good deep clean-up.

What Other Types of Smells You Can Feel in Your Car?

Besides rotten eggs and bad fish, when you sense a different smell in your car, it is worth paying attention to it and trying your best to address it as soon as possible.

These can be something that includes:

1- Exhaust Odor

Out of the many car odors, exhaust fumes are one such thing that you should not ignore.

Exhaust fumes inside the car’s interior are an indication of leakage in the exhaust structure or it can be due to bad sealing on your car’s door or window.

When exhaust smell like rotten eggs it is harmful to you, your family, and your pets when inhaled.

Circulation of these fumes inside your car’s limited space will affect your breathing and make you gasp for fresh air.

As soon as your smell these fumes, without any second thought take it to the mechanic to fix the issue that causes this leakage.

2- Car Smelling Like Gas

It’s time for you to draw your attention if you still sense the gas smell inside your car when your car is running.

There are chances that it is due to the fumes lingering in your clothes or shoes when you last filled them in a gas station.

If this is the reason you are lucky and the smell should disperse into thin air once you keep the windows open for a few minutes when you drive the car.

If it continues to last longer than expected for long hours, it is difficult to get rid of the smell and need to look at the source point that causes the gas leakage.

It could be due to issues in the gas cap or leakage in the gas tank.

Either of these will prove harmful to your health and it will affect your car’s performance as well.

It is wise to approach the nearest car servicing station where this issue will be addressed perfectly by the expert technicians who will find and seal the gas leakage spot.

3- Smell of Burning Rubber in Car

As long as you are not a race car driver driving on a racing track, the smell of burning rubber should be a cause of concern for you.

It is an indication of a loose rubber belt or hose under the car’s hood.

As a result, during movement, these loosened parts will come in contact with heated engine parts and you smell the rubber burning odor.

Other causes of this rubber burning smell can arise from oil leakage or an old drive belt.

These belts and hoses are subject to wear and tear always and it is wise to repair your car once you sense this type of smell.

They will diagnose the trouble and get it done right.

4- Other Burning Smells from Your Car

Some smells are not familiar or distinguishable with a name like rubber burning, exhaust odor, etc.

Even if you sense some weird or different smell, then also it is wise to take it to the car repair shop and rectify the issue.

Some other smells can arise from an overheated AC compressor, burst electrical fuse, or damaged brake pads.

Even if you are not sure about the source of the smell, the trained technician will find it accurately and do the needful for safe driving.

 5- Sour or Musty-Smelling A/C in Your Car

A moldy odor arising from AC ventilation is an indication of moisture accumulation beyond a certain level in air drainage or filter.

It can also smell like dusty socks or vinegar.

Inhalation of this odor over a period of time without addressing it, thinking it is not a major issue, will lead to respiratory problems.

Technicians specializing in car AC servicing will help you to keep these allergic smells at bay.

This will ease your breathing while driving and help to increase the performance and life of the AC in your car as well.

How Can I Prevent Fishy Odor in the Car from Returning After Cleaning?

A fishy odor in your car can be one of the most unpleasant and stubborn smells to deal with. Even after cleaning, it can creep back if the underlying cause isn’t fully addressed.

Here’s how to prevent that persistent fishy smell from returning and keep your cabin fresh for good.

1. Identify and eliminate the source

The first step is crucial—find out why it smells fishy. Common culprits include spilled seafood, moisture buildup under seats or carpets, a dead insect or rodent in the ventilation system, or even a malfunctioning cabin air filter.

Clean these areas thoroughly with an enzyme-based cleaner that neutralizes organic odors rather than masking them.

2. Replace or clean the cabin air filter

A dirty or damp cabin air filter can harbor bacteria and mold, both of which can create that fishy or musty odor.

Replace the filter every 10,000–15,000 km or as recommended by your car’s manufacturer. Consider using a charcoal-activated filter for better odor absorption.

3. Clean and sanitize the AC system

Run your AC on full blast with windows open, then spray an AC disinfectant or an odor eliminator into the air intake vents.

This helps remove bacteria or mold from the evaporator core—one of the most common hidden odor sources in cars.

4. Keep moisture out

Moisture is a major odor amplifier. Always check for leaks in the door seals, floor mats, or trunk. Use moisture-absorbing products like silica gel packs or baking soda under the seats to keep the air dry.

5. Regular maintenance and prevention

Avoid eating seafood or storing wet gear in the car. Keep the interior ventilated regularly by leaving windows slightly open (when safe) and using air purifiers or ozone generators occasionally to kill bacteria and neutralize odors.

Conclusion

Getting rid of fish smells in your car isn’t just about masking the odor—it’s about addressing its source and preventing it from returning. Even a small spill or bit of moisture can turn your vehicle into an odor trap if ignored.

The key lies in deep cleaning, proper ventilation, and regular maintenance. Replace your cabin air filter, disinfect the AC system, and always ensure the interior stays dry.

Using odor absorbers like baking soda, activated charcoal, or even coffee grounds can help keep things fresh naturally.

Most importantly, avoid letting food, seafood, or damp gear linger in the car for long. Once you eliminate the cause and build a habit of cleanliness and ventilation, your car will smell fresh and inviting again—ready to make every drive pleasant, not pungent.