What Part of a Car Fails the Most

What Part of a Car Fails the Most

Cars are made up of many moving parts. Preventive maintenance keeps them running on the regular, but some components fail more than others. Have you ever been stranded with a dead battery or stressed about squealing brakes? If you answered yes to either of these questions, you’re not alone.

So, what part of a car fails the most? The answer depends on your driving habits, vehicle age, and Calgary’s road conditions. Let’s discuss them so you know what to watch out for and how to prevent unexpected breakdowns.

Parts of the Car That Fail the Most

There isn’t one part of a car that fails more than others. In fact, multiple components are vulnerable to wear and tear. Let’s discuss each one and the warning signs to watch out for.

Battery

Car batteries are vulnerable to failure, and Calgary’s long, cold winters don’t help. The cold weather puts extra strain on batteries and can shorten their lifespan. Most car batteries last three to five years. However, if you notice slow engine cranking, dim headlights, or the need for frequent boosts, consider a replacement.

Brakes (Pads & Rotors)

Brake pads wear down with use. Replacements are necessary every 40,000-70,000 km, depending on driving conditions. If you hear squealing or grinding noises when braking and reduced performance, be careful. It can damage the rotor, leading to costly repairs. Brakes keep you safe, but they are one of the frequently replaced parts.

Alternator

The car’s alternator keeps your battery charged and powers the car’s electrical systems. When it fails, your car can shut down unexpectedly. Watch for the warning signs like flickering dashboard lights, consistent battery issues, or trouble starting your vehicle. Alternators fail less than batteries, but can cause plenty of problems when they do.

Suspension (Shocks & Struts)

Your suspension system helps provide a smooth ride and keeps your vehicle stable. In Calgary, potholes and uneven roads can take a toll on shocks and struts. When these parts fail, you may experience bouncing, clunking noises, or difficulty steering. Suspension problems can also cause uneven tire wear and poor handling.

Tires

Tires are on the road all the time. That’s why they tend to fail. Punctures, worn tread, and uneven wear caused by poor alignment are all common issues that can be addressed through regular inspections and replacement as needed. Driving on worn tires is uncomfortable and dangerous, especially during the winter when traction matters. 

Reasons Car Parts Fail

Problems don’t happen for no reason. There are several factors that accelerate the wear and tear of your vehicle. Consider the following:

  • Age and Mileage: Parts of your vehicle will wear down with age and when you drive your vehicle over long distances.
  • Weather: Let’s face it—Calgary’s weather conditions are unpredictable. The cold and seasonal changes put stress on batteries, tires, and suspension systems.
  • Road Conditions: Rough, uneven roads and potholes damage your suspension and tires.
  • Lack of Maintenance: Skipping out on regular inspections can turn small problems into costly repairs.

A couple of these aspects are beyond your control. Despite this, you should still make an effort to take care of your vehicle in the long run.

Ways to Prevent Frequent Failures

The good news? The majority of common problems can be combatted by preventative maintenance. Here are some of our tips:

  • Test your battery before winter and replace it if it’s nearing the end of its lifespan
  • Schedule regular brake inspections to replace pads before the damage to the rotors
  • Check your suspension after hitting potholes or if you notice unusual handling
  • Rotate your tires every 8,000-10,000 km and check tire pressure monthly
  • Get regular diagnostic checks to catch alternator or electrical problems early

The key is being proactive. It can save money, prevent breakdowns, and keep your vehicle on the road for longer.

Schedule a Preventive Maintenance Appointment Today

What part of a car fails the most? The top contenders are batteries, brakes, alternators, suspension systems, and tires. Since they face the harshest conditions, they are the most vulnerable. At My Calgary Mechanic, we offer preventative maintenance services to keep your vehicle safe and prevent costly breakdowns.

Ready to make sure your car is in top shape? Contact us to book an inspection today!

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