Do I need to replace the belts on my vehicle?

July 26, 2024

The Importance of the Belts on Your Vehicle

Close-up shows a dry, cracking serpentine belt | Bob's Main Street Auto & Towing

We often get asked about when to replace car belts at our shop. Did you know your car might have more than one belt? Some cars have just one belt, but others have two: an accessory belt and a serpentine belt. Let’s break it down.


Serpentine Belt

The serpentine belt is a single belt that helps run different systems in your vehicle, like the power steering, air conditioning, water pump, and alternator. This belt usually lasts between 50,000 and 100,000 miles, depending on how and where you drive. Over time, the belt wears down from heat and friction, causing it to crack, fray, or split. When it gets old, it might start squealing or chirping, which means it’s not working right. If this belt breaks, you could lose power steering and your vehicle's battery might not charge, which can cause vehicle issues. So, it's important to replace the serpentine belt as recommended to avoid unexpected problems.


Accessory Belt

Not all cars have just a serpentine belt. Some also have an accessory belt, which runs some of the systems the serpentine belt would usually handle. Think of it like splitting the work between two belts. If your car has an accessory belt, make sure it gets checked regularly too.



If you have any more questions, feel free to call our service advisors. We have THREE convenient locations in West Bend and Hubertus which service most makes and models. We're here to help with all your car needs!

By Bob's Main Street Auto & Towing January 29, 2026
Expert auto AC & heating service at Bob's Main Street Auto & Towing in West Bend & Hubertus, WI. Professional care for year-round comfort. Visit us today!
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