8 Under $50 Car Maintenance Tasks That Can Prevent $5,000+ Repairs

For those who are comfortable with preventative car maintenance, some inexpensive, DIY-friendly car tasks can help you avoid major bills down the road. These smart money moves for car owners not only help maintain your vehicle's performance and value, but also eliminate ongoing labor costs and prevent catastrophic failures — potentially saving you thousands over its lifespan.

Considering over half of drivers say they have paid for a car repair in the past that they believe could have been avoided with regular maintenance, the message is clear — don't risk the cost of putting off these critical tasks.

Depending on your vehicle, these eight do-it-yourself maintenance tasks can often be done for under $50, saving you thousands in the long run.

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Annual coolant replacement prevents overheating and engine block damage, which can cost up to $8000 in repairs. Reddit users say a coolant flush is easier than an oil change, but it does require some knowledge, which can be acquired from step-by-step DIY YouTube videos.

A coolant flush costs up to $250 at a shop. Since you need to purchase some tools, expect to save $70 on the first flush and around $120 on each subsequent flush.

You should clean your battery terminal at least once a year under regular conditions. If you live in a salty or humid climate or notice any corrosive build-up, clean more frequently.

This proactive step helps ensure proper electrical flow, preventing premature battery or alternator failure. You can get a good cleaning kit for under $20, making each subsequent clean cost next to nothing. In comparison, a new battery will run you over $200, and hundreds more for a new alternator.

Replacing your air filter takes only a few minutes and can cost as little as $10. While simple, there are common mistakes to avoid, such as installing the air filter in a dirty housing or installing the wrong filter type or size.

Change your air filter every 12,000 miles to improve engine efficiency and prevent potential internal engine damage, which can cost thousands of dollars. This step will also help you save money by reducing fuel consumption.

If your rotors get damaged from worn brake pads, you're looking at $1,000 or more for a professional repair or even $400 if you do it yourself.

Visually inspect your pads, changing them once they are less than 1/4 inch thick. Some have a built-in wear indicator. Depending on your vehicle, you can get a set of front and rear pads for under $50. Doing this job yourself can save you $300 to $500.

At least once a month, check all fluid levels. This simple task can significantly enhance the longevity of many car parts while preventing expensive repairs and safety hazards.

Ignoring low oil or coolant levels can cost you thousands in engine repairs. Low brake fluid can increase your risk of an accident, while low transmission fluid and resulting failure can cost you upwards of $7,000. You can grab a gallon of transmission fluid for about $20.

With the right tools and supplies, you can change your oil in 30 to 60 minutes. Depending on your vehicle and the oil type, do so every 3,000 to 15,000 miles. Always refer to your owner's manual. Following the oil change, log your mileage so you know when it's time to replace the oil again.

The oil will cost under $20, saving you $100 or more each oil change. However, you must stay on top of required changes to avoid a potential $10,000 engine replacement.

Considering the average set of four tires costs $600 or more, you'll want to regularly check the pressure and rotate them to extend their lifespan. Refer to your owner's manual concerning the best tire rotation pattern for your vehicle and address this need every 5,000 to 8,000 miles.

Completing this maintenance task yourself can save you $70 or more. Unless you have the proper equipment, such as a wheel balancer, take your vehicle to a shop to have your tires balanced (costing between $40 and $75).

To maintain performance and prevent costly breakdowns or even engine failures, you must replace your serpentine belt. This preventative task is recommended every 60,000 to 100,000 miles, even if you don't notice any signs that something is amiss.

For a professional to replace the belt, expect to pay between $150 and $250. However, to do this yourself, depending on your experience, it only takes around 20 minutes to replace and can cost you less than $20.

Tackling car maintenance tasks yourself is a great way to save money throughout the year while preventing significant (and costly) repairs. However, you must invest in the right tools and have the know-how to complete each task.

It's always best to refer to your owner's manual before purchasing any parts and seeking professional assistance for anything you're not comfortable with. Start with the basics, such as oil changes and air filter replacements.

Before you know it, you'll lower your car costs. Pair your DIY skills with gas programs, and you'll watch your savings grow.