When Should You Replace These 6 Car Parts?

Much like any other machine, your car is built from various components. These will eventually wear down, causing malfunctions and poor performance.  Some parts will last longer than others, but note that many situations can speed up wear and tear. In addition, certain parts of your car can damage others if you don’t replace them immediately once they show signs of trouble.

To help keep your vehicle in good shape, here’s a quick guide on when you should replace six crucial car components:


Your car’s electronic parts—including the engine starter, all the lights, and your entertainment system—are powered by the battery. When it gets discharged, you won’t be able to use these features; in fact, you won’t be able to start your car at all! Fortunately, your car’s battery gets charged by the alternator while you drive.

Still, after some time, the battery will reach the end of its lifespan. Depending on how often you drive and other factors, it can be anywhere between two to five years. Dirty terminals and fluid leaks can also cause battery issues. Some signs that indicate you need to replace your battery include difficult starts, false alarms from warning systems, and electronic components that won’t turn on.

The good thing is that it’s easy to buy car batteries. They’re essential vehicle components that need frequent replacement, so many auto parts shops will definitely have a selection for you.


Two of the most crucial parts of your car’s brake system are the brake pads and rotors. Essentially, they work together to generate the friction and force needed to stop your vehicle from moving. If you frequently drive at high speeds, you might need to change the brake pads and rotors sooner rather than later. Your vehicle’s manufacturer will have recommendations, but you should generally replace these parts when needed.

Take note of signs like loss of braking power, odd noises like squeaks and squeals, as well as a different feel of the brake pedal. If any of these show up, have your brake components inspected and replaced as soon as possible.


When it comes to replacements, one of the most straightforward components of your car is the tires. All you need to do is check their treads, and if they’re worn, then it’s time to replace them. Usually, tires can last for about 30,000 to 60,000 kilometers depending on the driving conditions and the position of the tires.

Of course, you have to check for punctures and other forms of damage that can affect performance and lifespan. It’s also a good idea to always carry a tire pressure gauge so that you can inflate your tires to the right PSI when needed.

Cabin Filter

Your car’s air conditioning system has a filter that prevents dust, pollen, and other contaminants from getting recirculated in your vehicle. In short, the cabin filter is what ensures your comfort inside your car. It can also prevent dust buildup not just inside your car but also in the internal parts of the air conditioner.

Depending on how often you drive and the driving conditions, you may need to replace the cabin filter every year or so. This will prevent clogging and possible damage to the air conditioner components. Some signs that you need a cabin filter replacement include poor cooling or heating, debris coming from the vents, and musty smells from the air conditioner.

Engine Air Filter

Your car’s engine air filter is usually located in front of the engine compartment, inside an air collector box. This filter prevents dirt and contaminants from getting into the engine, ensuring clean airflow for better fuel combustion. Over time, the engine filter can get dirty and clogged, resulting in reduced engine power.

Usually, the engine air filter should be replaced once a year. However, like the cabin filter, it depends on factors such as driving frequency and conditions. If you often go on dirty roads, then you need to replace the filter more often.

Coolant and Other Fluids

When it comes to your vehicle’s fluids, such as the coolant and brake fluids, the manufacturer will have a recommended replacement schedule. Some older models might need more frequent changes, while newer models can last longer between top-ups and flushings. When in doubt, always check the owner’s manual or have your car inspected by a professional.

Do note that flushings are crucial for certain fluids. It will prevent the buildup of sludge that can affect performance and even damage components. Some fluids that need this process are the brake fluid and the transmission fluid. Again, consult the owner’s manual.

When your car is in good shape, it’s safer and more fun to drive. Keep this list in mind whenever your vehicle is up for maintenance so you can keep it in good running condition for years to come.