Person leaning over a car with an open hood

​Car Maintenance You Might Be Overlooking—And Why It Matters for Insurance​

by Erie Insurance on March 4, 2026

Life gets busy. Car maintenance often falls into the category of “I’ll deal with it when I have to.”

But small maintenance decisions can affect more than performance. They can influence vehicle reliability, long-term value and even what happens after a claim.

ERIE Training and Delivery Specialists Scott and Chris have spent years working with vehicle damage claims and evaluating vehicle condition after accidents. They’ve seen firsthand how routine maintenance—or the lack of—shows up over time.

“Establishing a relationship with a mechanic you trust is a great way to protect your car—and often your budget,” shared Chris.

Noticing small changes early helps you schedule service on your terms instead of dealing with an inconvenient repair later.

How Are Car Maintenance and Insurance Connected?

Insurance is there for sudden, accidental damage—not gradual wear or mechanical breakdowns.

But maintenance still plays a role in claims outcomes.

Vehicle condition can influence:

  • Overall vehicle value in a total loss
  • Repair scope after an accident
  • How damage presents during inspection

“If you experience a total loss and your car wasn’t maintained regularly, that can affect the value of your vehicle,” said Scott. “It’s like when you are trying to sell your car. The better condition it’s in, the more it’s worth. It works similarly after a claim.”

Regular maintenance helps preserve vehicle condition.

Helpful note:
Your ERIE agent can explain how your auto policy works and how vehicle condition fits into valuation conversations.

Why Some Maintenance Issues Are Easy to Miss

Oil changes and tire rotations are easy to remember. But many items wear down quietly.

Chris noted:

“You’ll see a lot of maintenance issues with older cars. With newer ones, they’re built to last longer and maintenance is often minimal. But ignoring or neglecting basic maintenance can still cause issues.”

Routine care may be less frequent with newer vehicles—but what are some things to look out for?

  • What if Your Check Engine Light Comes On, But the Car Feels Fine? This doesn’t always mean an emergency. It can be something simple. But it’s worth scheduling a diagnostic check before it becomes a bigger issue.
  • What if Your Steering Feels Different After Winter? Cold temperatures, salt and winter driving conditions can affect fluids and belts. If your car doesn’t feel quite the same, a routine inspection can confirm everything is functioning properly.
  • What if Your Brakes Sound Different? Winter moisture and road salt can accelerate normal brake wear. Many mechanics recommend brake inspections annually—especially after heavy winter driving.

A seasonal check can help ensure your vehicle is ready for everyday driving.

Which Fluids Matter Most?

You don’t need to check them yourself—but it helps to understand their role.

Your vehicle relies on:

  • Coolant – Prevents overheating (often flushed between 100,000–150,000 miles depending on manufacturer guidelines)
  • Brake fluid – Supports brake responsiveness (commonly inspected annually)
  • Transmission fluid –  Which lubricates gears supports smooth shifting and longevity

Scott explained:

“Lots of people overlook flushing coolant or other fluids. Depending on your owner’s manual, you might go 100,000 to 150,000 miles before it’s required. But keeping those fluids fresh helps your car work the way it should.”

Always consult your owner’s manual or mechanic for specific intervals.

What’s that squealing sound? Engine Belts

Belts help power key systems like steering and engine cooling. Over time, they wear down—especially with temperature swings and winter driving.

Timing belts keep your engine’s crankshaft and camshaft in sync. Many newer vehicles have timing chains, which are more durable, and in some instances can last the life of the car.

Certain clues, such as a misfiring engine or a ticking noise, may indicate that it’s failing. But your timing belt can also break without warning. When it does, the engine can become inoperable and cause damage to other critical components.

Serpentine belts, or drive belts, transfer power from the engine to important parts such as the alternator and steering pump. These long, continuous belts can break down over time due to friction and heat and can result in an overheated engine or loss of steering assistance.

Belts are one of those parts most drivers don’t think about—until they start making noise. A quick inspection during routine service can usually catch wear before it becomes a bigger inconvenience.

Don’t Forget About What You Can’t See: Undercarriage Wear

Winter driving doesn’t just affect what’s under the hood. Road salt and moisture can take a toll underneath your vehicle, too.

Rust in the undercarriage often develops gradually and may go unnoticed without an inspection.

Chris explained:

“Regular car maintenance keeps your car operating at a good performance level—but structurally, it matters too. If rust in the undercarriage goes unnoticed, it can weaken parts of the vehicle over time. In an accident, that can sometimes lead to more extensive damage than people expect.”

Keeping an eye on undercarriage wear can help preserve durability and long-term value.

Cabin and Engine Air Filters: Small Parts, Big Impact

The cabin air filter cleans the air that enters your vehicle’s cabin through the heating and air conditioning system.

As it catches dirt, dust and other airborne debris, the filter can fill up with gunk over time and become ineffective at doing its job. When that happens, you may notice:

  • Reduced airflow from vents
  • Musty or unpleasant odors
  • Increased allergens inside the cabin

“People always forget about their cabin air filter,” Scott says. “It gets neglected a lot, but it helps give you cleaner, fresher air in your car. If you have allergies, especially, it’s something to keep an eye on.”

The engine air filter prevents dirt and debris from entering the engine during combustion. A dirty or clogged filter can lead to:

  • Reduced engine performance
  • Lower fuel efficiency
  • Darker exhaust emissions

Depending on your driving habits and location, car manufacturers typically recommend changing engine air filters every 15,000 to 45,000 miles. Regular inspections can help you avoid unnecessary strain on your engine.

Checking or replacing these are easy wins during routine service.

How to Stay Ahead (Without Doing It Yourself)

Skipping maintenance rarely causes immediate failure. But small issues can grow.

Simple ways to stay proactive:

  • Schedule annual inspections
  • Keep maintenance records
  • Follow manufacturer mileage guidelines
  • Address small warning signs early

To help you be proactive, we compiled a checklist for each season to ask your mechanic to check yourself on your vehicle. 

A Coverage Review: Just as Important as Maintenance

Vehicles change. Driving habits change. Families grow.

Just as you periodically service your car, it’s smart to review your insurance coverage.

An ERIE agent can help ensure your policy reflects how you use your vehicle today—and explain how maintenance fits into the bigger picture.

 

Fluid Levels

While engine oil might get all the attention, many of your car’s important components rely on fluids that must be regularly attended to. For example, coolant is essential to keeping your engine from overheating and seizing, brake fluid transfers the force from your car’s pedal into its brake system, and transmission fluid lubricates the shifting gears and reduces friction to keep your transmission running smoothly.

Additional fluids, such as power steering and differential fluid, also require changing at different times. As all fluids perform important functions and are worthy of keeping a maintenance schedule, your auto technician can help you manage your car’s upkeep in accordance with your vehicle’s manufacturer guidelines.

Engine Belts

Owners of cars of a certain age or mileage might be familiar with your engine’s various belts and the need to eventually replace them.

Timing belts are integral to keeping an engine running by synchronizing its crankshaft and camshaft. Many newer vehicles have timing chains, which are more durable, and in some instances can last the life of the car. While certain clues, such as a misfiring engine or a ticking noise, may indicate that it’s failing, your timing belt can break without warning, making the car inoperable and often resulting in damage to other components.

Serpentine belts, or drive belts, are another essential belt that should eventually be replaced. These long, continuous belts transfer power from the engine to important parts such as the alternator and steering pump. However, they also break down over time due to friction and heat and can result in an overheated engine.

As vehicle’s specifications differ, you owner’s manual will have recommendations on when to replace these belts.

Cabin Air Filter

Not to be confused with the engine air filter—we’ll get to that later—the cabin air filter cleans the air that enters your vehicle’s cabin. Since it catches dirt, dust and other airborne debris, the filter can fill up with gunk over time and become ineffective at doing its job. When really saturated, it can even result in decreased airflow and unpleasant odors coming from your climate system.

Most cabin air filters are located behind the glove box and are relatively simple and inexpensive to replace. They should be replaced roughly every 15,000 miles. But if you’ve never changed your cabin air filter, be forewarned: it can appear pretty grimy and make you wonder what you’ve been breathing in while you drive.

Engine Air Filter

Just as the air filter in your car’s cabin cleans the air for its occupants, an engine air filter allows your engine to breathe. But an old and dirty air filter can let dirt, dust and other particulate matter inside your engine, which can result in a loss of power, dark exhaust and reduced fuel efficiency.

Depending on your driving habits and environment, it’s wise to at least inspect the engine air filter regularly to ensure it’s visibly clean. Car manufacturers generally recommend changing them anywhere between 15,000 and 45,000 miles, depending on the make and model.

Spark Plugs

Your car’s engine needs a spark to ignite the air-fuel mixture inside the combustion chamber, and that’s where spark plugs come into play. Over time, however, spark plugs can become less effective at doing their job.

When they begin to misfire, faulty spark plugs can result in things like rattle-like noises, difficulty starting and poor gas mileage. As spark plugs can vary in their lifespan, drivers should consult their owner’s manual to determine when to replace them as part of a preventative maintenance routine.

A Coverage Review

No, it’s not technically maintenance on your car, but it’s a good opportunity to make sure your insurance coverages are in line with your current needs. Like changing your oil or your cabin air filter, coverage reviews should take place periodically to help ensure things run efficiently.

Find a local Erie Insurance agent to help you understand what the right coverages are for you and why they matter. Get a free quote today.  

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ERIE® insurance products and services are provided by one or more of the following insurers: Erie Insurance Exchange, Erie Insurance Company, Erie Insurance Property & Casualty Company, Flagship City Insurance Company and Erie Family Life Insurance Company (home offices: Erie, Pennsylvania) or Erie Insurance Company of New York (home office: Rochester, New York).  The companies within the Erie Insurance Group are not licensed to operate in all states. Refer to the company licensure and states of operation information.

The insurance products and rates, if applicable, described in this blog are in effect as of the article’s publish date and may be changed at any time.

Insurance products are subject to terms, conditions and exclusions not described in this blog. The policy contains the specific details of the coverages, terms, conditions and exclusions. 

The insurance products and services described in this blog are not offered in all states.  ERIE life insurance and annuity products are not available in New York.  ERIE Medicare supplement products are not available in the District of Columbia or New York.  ERIE long term care products are not available in the District of Columbia and New York. 

Eligibility will be determined at the time of application based upon applicable underwriting guidelines and rules in effect at that time.

Your ERIE agent can offer you practical guidance and answer questions you may have before you buy.