Written By: Don Dodi
Fact Checked By: Kristen Brown
Reviewed By: Diego Rosenberg
It is true that; a car cover can only provide ultimate protection to your vehicle when it is properly clean, as there can be trapped dirt that can damage the paint instead of protecting it, as the dirty cover harms the paint by rubbing the particles against the vehicle surface.
Basically, ideal cover protects your vehicle from dust, sunlight, rain, bird droppings and pollution as well; but the thing is it gets dirtier and less-protective months of use.
So, whenever you put that dirty cover on a vehicle, then it can cause scratches to your vehicle’s paint job or dullness can be the result.
Not only this, there’s studies on the automotive surface protection and that shows that the abrasive particles are one of the most common causes that leads to the micro-scratches on the vehicle clear coats.
Which is why, regular washing is needed to keep your car cover ultra-protective and free-from all kinds of harmful particles and fabric can be breathable as well.
In this guide, we have focus on How Do You Wash a Car Cover, so that you easily maintain their effectiveness and prevent mold, mildew and unpleasant odors as well.
Understand, Why Washing Your Car Cover is Important
1. Prevents Trapped Dirt from Scratching Your Car’s Paint
When a car cover is exposed to wind, sun and other elements, it accumulates dust, sand, pollen and other airborne particles that are often invisible to the naked eye.
If this dirt remains embedded in the fabric, these particles can rub against the paint surface when the cover is placed back on the car.
Automotive paint has a thin protective clear coat and even very fine particles can create micro-scratches over time.
These scratches may not be immediately visible, but repeated contact gradually dulls the paint’s finish and reduces its shine.
Washing the car cover removes these harmful particles and ensures that the cover protects the paint rather than damaging it.
2. Extends the Lifespan of the Car Cover Fabric
Car cover materials are designed for durability, but constant exposure to dirt, pollution, bird droppings and moisture can weaken the fibers over time.
When dirt becomes embedded in the fabric, it gradually degrades the material, leading to thinning, tearing and reduced strength.
Regular washing removes these damaging elements and reduces stress on the fabric.
Clean fibers move more freely and maintain their original structure, allowing the car cover to last longer and perform better throughout its lifespan.
3. Maintains Breathability and Weather-Resistant Properties
Most modern car covers are designed to be breathable, allowing air to circulate while still providing protection from rain, sun and harmful UV rays.
When dirt and oils become embedded in the fabric, they can clog the pores, trapping moisture between the cover and the car.
This reduces the cover’s ability to protect against the elements.
Washing restores proper airflow and helps maintain water repellency and UV protection.
A clean cover performs as designed, allowing moisture to escape and protecting the vehicle from heat, rain and environmental damage.
4. It Helps To Prevent Mold, Mildew and Unpleasant Odors
Moisture is one of the biggest threats to car covers, specially in humid or rainy environments.
When a dirty cover remains wet, it creates the perfect conditions for mold and mildew to grow within the fabric.
This not only leads to strong, unpleasant odors but can also weaken the material and stain the vehicle’s surface.
Regular washing removes moisture-absorbing dirt and organic matter on which mold thrives.
Proper cleaning and drying keep the cover fresh, safe to use and healthy for both the car and the user.
How to Identify the Type of Car Cover You Have
1. The Difference Between Indoor and Outdoor Car Covers
Indoor and outdoor car covers are designed for very different environments and understanding this distinction is crucial before cleaning.
Indoor car covers are primarily used to protect vehicles inside garages or storage areas from dust, light scratches and accidental damage.
They are typically lightweight, soft and not designed to withstand rain or harsh sunlight.
Outdoor car covers, on the other hand, are built to protect vehicles from harsh conditions such as rain, UV rays, pollution, bird droppings and temperature fluctuations.
Because outdoor covers face more challenging conditions, they are often thicker and feature weather-resistant layers.
Knowing whether your cover is for indoor or outdoor use helps you choose the safest washing method and prevent damage to the fabric.
2. Common Materials Used in Car Covers
Car covers are made from a variety of materials and each material reacts differently to water, detergents and heat.
Polyester is widely used because it is durable, lightweight and resistant to stretching and shrinking.
Polypropylene is popular for outdoor covers as it offers good water resistance and breathability while being durable in varying weather conditions.
Cotton blends are soft and gentle on paint, making them common for indoor use, but they absorb water easily and require careful drying.
Multilayer fabrics combine several materials to provide both softness and weather protection, often using an inner layer for paint protection and outer layers for moisture and UV resistance.
Understanding the material of your car cover ensures proper cleaning without compromising its protective qualities or causing damage.
3. Checking the Manufacturer’s Care Label and Instructions
Most high-quality car covers come with a care label or manufacturer’s instructions that explain the proper way to clean and maintain the cover.
These labels provide essential information such as the recommended water temperature, whether machine washing is prohibited and whether air drying or low-heat drying is safe.
Ignoring these instructions can lead to shrinkage, damage to the waterproof coating, or other damage to the fabric.
Manufacturers test their materials and coatings under specific conditions, so following their instructions ensures the cover’s performance and longevity.
Taking a few minutes to read the care label can prevent costly mistakes and ensure your car cover continues to protect your vehicle effectively.
What are the Things to Do Before Washing a Car Cover
1. Removing Loose Dirt, Leaves and Debris
Before washing a car cover, it’s crucial to remove any loose dirt, dust, leaves and other debris from the surface.
Gently shaking the cover or using a soft brush helps dislodge dry particles that could cause abrasion during washing.
If loose dirt remains on the fabric, it can rub against the fibers when wet, leading to unnecessary wear or thinning.
Removing debris beforehand also prevents muddy residue from accumulating in the washing machine or bucket, which can reduce cleaning effectiveness and redeposit dirt onto the cover.
2. Checking for Tears or Weak Seams
Thoroughly inspecting the car cover before washing helps identify small tears, stretched areas, or weak seams that may not be immediately apparent during normal use.
Washing, specially machine washing, puts stress on the fabric and seams as the weight of the material increases with water and agitation.
If damaged areas are overlooked, they can easily become larger holes or completely unravel during the wash cycle.
Identifying and addressing minor damage beforehand preserves the cover’s integrity and prevents further deterioration.
3. Checking for Stains That May Require Pre-Treatment
Some stains on car covers, such as bird droppings, tree sap, oil residue, or road grime, are more difficult to remove with just a regular wash.
These substances can adhere strongly to the fabric fibers and may require gentle pre-treatment to safely loosen them.
Identifying stains early allows you to carefully spot-clean them with mild soap and water, reducing the need for harsh detergents or repeated washing.
Proper pre-treatment improves cleaning results and helps preserve the fabric’s protective coatings.
4. Choosing the Right Washing Method
Choosing the correct washing method is crucial to protecting your car cover from damage.
Machine washing may be convenient, but it’s not suitable for all covers, specially large, multi-layered, or delicate ones.
Hand washing offers more control and is often safer for heavy-duty or weather-resistant covers.
The right choice depends on the cover’s size, material and the manufacturer’s instructions.
Using the correct washing method helps maintain the fabric’s durability, breathability and protective performance, while minimizing the risk of shrinkage or damage.
Can You Machine Wash a Car Cover?
1. When Machine Washing is Safe
Machine washing a car cover is only safe if the cover’s material and construction are designed to withstand the mechanical movement and weight of the water.
Many modern car covers made from durable synthetic fabrics are tested by the manufacturer for machine washing under controlled conditions.
However, very large, thick, or multi-layered covers can become heavy when wet, putting strain on both the fabric and the washing machine.
It’s crucial to check the manufacturer’s care instructions, as they specify whether machine washing will safely clean the cover or damage it.
Following these guidelines helps prevent tearing, stretching, or damage to protective coatings.
2. Consider Washing Machine Size and Capacity
The size and capacity of the washing machine play a significant role in safely cleaning a car cover.
The cover must be able to move freely inside the drum to allow for proper water and detergent circulation.
If the machine is too small, the fabric can become tightly compressed, leading to uneven cleaning and strain on seams and stitching.
Large outdoor covers often require high-capacity or commercial-style machines to avoid overloading.
Sufficient drum space reduces friction, improves cleaning results and prevents damage to both the cover and the washing machine.
3. Recommended Wash Cycle
When machine washing a car cover, it’s essential to use a gentle or delicate wash cycle.
These cycles utilize slower drum speeds and less agitation, minimizing the risk of fabric damage and strain on seams.
High-speed or heavy-duty cycles can be too aggressive and may weaken or prematurely wear out the fibers.
A gentle cycle effectively cleans the car cover while preserving its strength, softness and protective properties.
This method helps maintain the cover’s long-lasting performance without compromising its structure.
4. Correct Water Temperature
When washing a car cover in a washing machine, cold or lukewarm water is the safest option.
Hot water can shrink some materials, weaken stitching and damage waterproof or UV-resistant coatings.
Cooler temperatures are effective at removing dirt and contaminants without damaging the fabric.
Using cold or lukewarm water also helps maintain the cover’s shape and reduces the risk of color fading or material degradation.
The correct water temperature plays a crucial role in extending the lifespan and effectiveness of your car cover.
How to Hand Wash a Car Cover
1. When is Hand Washing Recommended?
Hand washing is recommended when the car cover is large, heavy, multi-layered, or made of delicate material that cannot withstand the abrasion of a washing machine.
Outdoor covers with waterproof coatings and soft inner linings often benefit from hand washing as it reduces stress on the seams and fabric layers.
Hand washing is also ideal when the washing machine is too small to allow for proper movement or when the manufacturer specifically advises against machine washing.
This method provides complete control over pressure, water temperature and cleaning time, preserving the cover’s protective features.
2. Tools and Cleaning Supplies
Hand washing a car cover requires a few basic and gentle cleaning supplies.
Clean water, a mild soap or non-detergent cleaner and a soft sponge or cloth are usually sufficient.
Harsh detergents, bleach and fabric softeners should be avoided as they can damage the waterproof coating and weaken the fabric fibers.
Using soft tools prevents abrasion, while gentle cleaners effectively remove dirt, pollutants and organic debris without harming the material.
Choosing the right supplies ensures safe and effective cleaning.
3. Hand Washing Procedure
The hand washing process should be gentle and thorough to protect the fabric.
The cover should be placed in a large tub, on a clean driveway, or in an open area where it can be fully spread out.
Lukewarm or cool water helps loosen dirt without damaging the material.
Gently scrubbing with a soft sponge lifts dirt from the fabric rather than pushing it deeper into the fibers.
Careful handling prevents stretching, tearing and damage to the seams, while also ensuring a complete clean.
4. Rinse thoroughly to remove detergent residue
When hand-washing your car cover, thorough rinsing is one of the most important steps.
Any soap residue left on the fabric can attract dirt, reduce breathability and cause staining or residue buildup.
Rinse with clean water until no more suds are visible and the water runs clear.
Proper rinsing also restores the fabric’s breathability and prevents stiffness after drying.
Removing all detergent residue ensures that the cover remains soft, breathable and safe for your car’s paint.
Know, What’s the Best Detergents for Washing Car Covers
1. Mild, Non-Detergent Soaps
Mild, non-detergent soaps are the safest and most effective option for washing car covers.
These cleaners are designed to remove dirt, dust and environmental pollutants from the fabric without causing damage.
Non-detergent soaps do not contain harsh surfactants or additives that can break down fibers, making them ideal for synthetic and multi-layer materials.
Using a mild soap preserves the cover’s softness, breathability and ability to protect your vehicle’s paint, while still providing a thorough cleaning.
2. Detergents to Avoid
Certain cleaning products can cause significant damage to car cover materials and should never be used.
Bleach weakens fabric fibers and can cause discoloration and premature tearing.
Fabric softeners leave a waxy residue that clogs breathable layers and attracts dirt.
Harsh household detergents often contain strong chemicals, fragrances and enzymes that are too harsh for automotive fabrics.
Avoiding these products helps prevent shrinkage, stiffness and a reduction in protective performance.
3. Why Harsh Cleaners Damage Protective Coatings
Many car covers rely on special waterproof and UV-resistant coatings to protect vehicles from rain and sunlight.
Harsh cleaners can dissolve or strip these coatings from the fabric surface.
Once removed, the cover may absorb water instead of repelling it and lose its ability to block harmful UV rays.
Damage to these coatings is often permanent and the cover’s effectiveness is compromised, even if the fabric appears clean.
Using mild cleaning products helps preserve these protective layers and ensures long-lasting performance.
How to Remove Stains from a Car Cover
1. Common Stains on Car Covers
Car covers, whether protecting a vehicle outdoors or indoors, are exposed to a variety of stain-causing substances.
Bird droppings are highly acidic and can dry and harden quickly, making them difficult to remove if not cleaned promptly.
Tree sap is sticky and can adhere strongly to fabric fibers, trapping dirt and pollutants.
Road grime often contains oil residue, brake dust and fine particles that can become deeply embedded in the material.
These stains not only make the cover look unsightly but can also weaken the fabric fibers and reduce breathability if not properly cleaned.
Identifying the type of stain helps in choosing the safest and most effective cleaning method.
2. Safe Spot-Cleaning Techniques
Spot cleaning is the safest way to remove stains without washing the entire car cover.
Before treating the stained area, it should be lightly dampened with clean water to soften the grime.
Gently dabbing with a soft cloth or sponge helps lift the stain to the surface rather than pushing it further into the fabric.
Vigorous scrubbing should be avoided, as this can damage the fibers and protective coatings.
Spot cleaning allows for targeted stain removal while preserving the overall integrity and performance of the cover.
3. Products and Tools That Won’t Damage the Fabric
Using the right products and tools is crucial when removing stains from a car cover.
Mild, non-detergent soaps are effective at loosening stains without damaging the material.
Soft sponges or microfiber cloths help to clean the surface gently and evenly.
Harsh chemicals, stiff brushes and abrasive tools can scratch the fibers, remove waterproof coatings and shorten the lifespan of the cover.
Choosing gentle products and tools ensures that stains are removed safely, while the fabric remains intact and undamaged.
How to Properly Dry a Car Cover
1. Air Drying vs Machine Drying
Air drying is the safest and best method for drying a car cover because it puts the least stress on the fabric and stitching.
When air-dried, the fibers return to their natural shape without excessive agitation or heat.
Some covers can be machine-dried, but only if the manufacturer explicitly states that it is safe.
Large or multi-layered covers become very heavy when wet and tumbling in a dryer can stretch the fabric and weaken the seams.
Choosing the correct drying method preserves the cover’s integrity and protective capabilities.
2. Why Avoid Excessive Heat
Excessive heat is one of the biggest culprits in damaging car covers.
Heat can shrink synthetic materials, soften adhesives used in layered fabrics and degrade waterproof and UV-resistant coatings.
Even short exposures to high temperatures can permanently reduce the cover’s ability to repel water and protect against sunlight.
Using low or no heat prevents shrinkage and preserves the protective layers.
Avoiding excessive heat ensures the car cover continues to perform as designed.
3. Best Places for Drying
The best place to dry a car cover is a shaded, open-air location where air can circulate freely around the fabric.
Direct sunlight can cause fading and weaken fibers over time, specially for outdoor covers.
Drying in the shade allows moisture to evaporate evenly without overheating the material.
Hanging the cover or laying it flat in a clean, well-ventilated area prevents creases and uneven drying.
Choosing the right location plays a crucial role in maintaining the fabric’s integrity and appearance.
4. Ensure the cover is completely dry before storing.
Storing a wet car cover can lead to mold, mildew and unpleasant odors.
Moisture trapped inside the folded fabric creates the perfect environment for microbial growth, which can damage the cover and stain your car.
Allowing the cover to dry completely ensures that no hidden moisture remains in the seams or layered areas.
Thorough drying also prevents the fabric from becoming stiff and maintains its breathability.
Giving the cover ample time to dry completely extends its lifespan and keeps it safe for future use.
Common Mistakes to Avoid When Washing a Car Cover
1. Using Hot Water or Harsh Detergents
Hot water and harsh detergents are commonly used for household laundry, but they can damage the material of a car cover.
Hot water can cause some fabrics to shrink, weaken stitching and degrade protective surface treatments.
Harsh detergents often contain chemicals that strip away waterproof and UV-resistant coatings.
Once these coatings are compromised, the car cover will no longer effectively repel water or provide protection from the sun.
Using cool or lukewarm water with a mild cleaner preserves the cover’s original strength and protective performance.
2. Drying at High Heat
Excessive heat from a dryer or direct heat source can permanently damage a car cover.
High heat can melt or distort synthetic fibers and break down the structure of layered fabrics.
This can also cause the cover to lose its shape, resulting in an improper fit on the vehicle.
Even if the cover appears intact after drying, heat damage can reduce its ability to protect against moisture and UV rays.
Avoiding excessive heat preserves the cover’s durability and functionality.
3. Washing with Other Heavy Items
Washing a car cover with heavy items like towels, blankets, or clothing with zippers can cause unnecessary stress and abrasion.
Heavy items can wrap around the cover during the wash cycle, putting strain on the seams and stretching the fabric.
Hard edges and fasteners can scratch or tear the material.
Washing the car cover separately allows it to move freely and be cleaned evenly, minimizing the risk of damage and extending its lifespan.
4. Storing the Cover While Wet
Storing a car cover before it is completely dry is a serious mistake that can lead to long-term problems.
Moisture trapped in folded fabric creates the perfect environment for mold and mildew to grow.
This can lead to unpleasant odors, weaken the fabric and cause stains on the car’s surface.
Storing it in a damp location also reduces airflow, which can cause the cover to stiffen over time.
Ensuring the cover is completely dry before storing it will help keep it clean, fresh and safe for continued use.
How Often Should You Wash Your Car Cover?
Even, there’s scientific evidence that shows that the type of washing agent and the number of wash cycles directly affects that how long a water-repellent coating actually lasts; so that clearly means that the recommended mild soaps and gentle wash cycles are great for having the perfectly cleaned and protective car covers.[ยน]
1. Factors Affecting Washing Frequency
How often a car cover needs washing largely depends on where and how it’s used.
Covers exposed to the elements outdoors accumulate dust, pollution, pollen, bird droppings and moisture much faster than those used indoors.
Vehicles parked near busy roads, industrial areas, trees, or coastal regions will accumulate more dirt.
Frequent use also leads to more dirt accumulation as the cover is repeatedly removed and replaced.
Storage conditions also matter, as storing the cover in a damp or dusty place can cause it to become dirty even when not in use.
These factors directly influence how quickly dirt and harmful particles accumulate on the fabric.
2. Signs That Your Car Cover Needs Cleaning
There are several clear indicators that a car cover needs washing.
Visible dust, stains, or discoloration on the surface are early signs of dirt accumulation.
A stiff or rough texture may indicate that dirt has become deeply embedded in the fibers.
Unpleasant odors often signal trapped moisture or organic buildup that can lead to mold or mildew.
If the cover no longer feels breathable or retains moisture for longer than usual, it’s time for a cleaning.
Recognizing these signs early helps prevent damage to both the cover and the vehicle.
3. Washing Recommendations Based on Weather
Seasonal changes play a significant role in determining washing frequency.
During dry and dusty seasons, the cover may need more frequent cleaning to remove abrasive particles that can scratch the paint.
Rainy or humid weather increases exposure to moisture, increasing the risk of mold and mildew if the cover is not properly cleaned and dried.
During winter or periods of high pollution, dirt can accumulate on the fabric more rapidly.
Adjusting your washing habits according to the weather helps maintain the cover’s performance and provides reliable protection throughout the year.
Read More:
How to Store a Clean Car Cover
1. Folding Techniques to Prevent Creases and Damage
Proper folding helps maintain the structure and performance of a clean car cover.
Gently folding the cover along its natural seams and panels reduces stress on the fabric and prevents sharp creases.
Tight or uneven folding can weaken the fibers over time and create cracks in the waterproof coating.
Keeping the fabric flat and folding it loosely preserves its flexibility and shape.
Careful folding also makes the cover easier to use later and minimizes unnecessary wear and tear.
2. Using a Storage Bag or Ventilated Container
Storing a car cover in the right container is crucial for long-term protection.
Ventilated storage bags allow for air circulation, which helps prevent trapped moisture and odors.
Plastic bags or airtight containers can trap moisture, even if the cover appears dry, increasing the risk of mold and mildew.
Many manufacturers provide storage bags specifically designed for car covers, using materials that protect the fabric and allow for airflow.
Choosing ventilated storage keeps the cover fresh and ready for use.
3. Ideal Storage Conditions to Prevent Mold and Mildew
The environment in which a car cover is stored plays a significant role in preventing mold and mildew.
Cool, dry and well-ventilated spaces are best, as they prevent moisture buildup and minimize microbial growth.
Keeping the cover away from direct sunlight prevents fading and material degradation.
Avoiding damp basements, wet garages, or areas with high humidity preserves the fabric’s integrity and cleanliness.
Proper storage conditions ensure that the car cover remains safe, odor-free and effective for future use.
Conclusion – How Do You Wash a Car Cover
So, when you perform the cleaning method correctly, then it becomes truly reliable and ultra-protective layer rather than than a ordinary cover that doesn’t provide high quality protection.
Not only this, a well-maintained car cover removes damaging dirt particles that can scratch the paint, prevents moisture from getting trapped underneath and maintains essential features such as breathability, water resistance and UV protection.
So, when you clean the by using the correct methods, mild cleaners, proper drying techniques and safe storage, it continues to perform exactly as designed.
As well as, regular care also prevents mold, mildew and fabric deterioration, which are common problems caused by improper washing and storage.
At last, a clean car cover provides better protection, lasts longer and keeps the vehicle safer over time.
So, that’s it from this guide and you can comment down for more information.
Frequently Asked Questions
Q1. How do you properly wash a car cover?
Answer: Properly washing a car cover begins with removing loose dirt and debris before applying water. This prevents dust and grime from being rubbed into the fabric during washing. Most car covers can be cleaned with cool or lukewarm water and a mild, non-detergent soap. The cover should be handled gently to avoid stretching or tearing the fabric. Proper washing removes harmful particles and keeps the cover safe for future use on your vehicle.
Q2. Can you wash a car cover in a washing machine?
Answer: Yes, a car cover can be washed in a washing machine if the manufacturer allows it and the machine is large enough. The cover should have enough room to move freely inside the drum to ensure even cleaning. Always use a gentle or delicate cycle to minimize stress on the stitching and fibers. If the cover is very large, thick, or multi-layered, hand washing is usually the safer option.
Q3. What kind of soap should be used to wash a car cover?
Answer: A mild, non-detergent soap is the best choice for washing a car cover. These soaps clean away dirt and contaminants without damaging the fabric or protective coatings. Harsh detergents, bleach and fabric softeners should be avoided as they can weaken the fibers and strip away waterproof or UV-resistant layers. Using the correct soap will help the cover last longer and perform better.
Q4. How often should a car cover be washed?
Answer: How often a car cover should be washed depends on how and where it is used. Covers used outdoors typically require more frequent cleaning as they accumulate dust, pollution and moisture more quickly. Covers used indoors may rarely need washing. If the cover looks dirty, feels stiff, smells bad, or retains moisture for longer than usual, it’s time to clean it. Regular washing helps prevent paint damage and wear and tear on the fabric.
Q5. How do you remove stains from a car cover?
Answer: Stains on a car cover should be removed with gentle spot cleaning rather than vigorous scrubbing. Bird droppings, tree sap and road grime should be softened with water first. Then, a mild soap and a soft cloth or sponge can be used to carefully remove the stain. Harsh chemicals and stiff brushes should not be used, as they can damage the fabric and protective coatings.
Q6. What happens if you put a dirty car cover back on your car?
Answer: Putting a dirty car cover back on your car can do more harm than good. Dirt and fine dust trapped in the fabric can rub against the paint and cause small scratches over time. Moisture and organic material can lead to mold and unpleasant odors. Washing the cover before reuse helps protect your car’s paint and finish.
Q7. How should a car cover be stored after washing?
Answer: After washing, the car cover should be completely dry before storing. Storing a wet cover can lead to mold, mildew and unpleasant odors. The cover should be gently folded and placed in a breathable storage bag or container. To maintain the fabric quality and cleanliness, it should be stored in a cool, dry place away from moisture and direct sunlight.
Q8. Does washing a car cover reduce its effectiveness?
Answer: Washing a car cover does not reduce its effectiveness if done correctly. In fact, proper cleaning maintains breathability, water resistance and paint protection. Problems usually arise only when harsh detergents, hot water, or excessive heat are used. Gentle washing and proper care actually improve long-term performance and protection.
References:
[1] An Effect of Washing on Durability of Hydrophobic Finishes of Membrane Laminates
https://www.researchgate.net/publication/321201247_An_Effect_of_Washing_on_Durability_of_Hydrophobic_Finishes_of_Membrane_Laminates
Guys, I’m a car audio enthusiast and customization expert and I love clear sound and clean installation. Plus, I have spent years helping people build their dream audio setups. And whenever I’m working on cars, I probably listen to music and thinks about the next big upgrade.