How Often Should Engine Belts Be Replaced?

[Lily]

Automotive engine belts generally need to be replaced every 2 years or approximately 60,000 kilometers. The following conditions also indicate that the generator belt needs replacement: 1. When inspecting the belt, if core fractures or groove cross-section cracks are found, immediate replacement is necessary. 2. If the belt's cover layer separates from the tension cords or the cords become frayed, the belt must be replaced. 3. When the belt is placed on the pulley, there should be a gap between the belt's inner diameter and the bottom of the pulley groove. If no gap is present, the belt must be promptly replaced.

[OClara]

As a driver who has driven various cars, my experience is that engine belts are usually replaced every four to six years, but this isn't a hard rule—it depends on the specific vehicle condition and driving habits. If you frequently drive long distances or operate under high loads, such as off-roading or towing heavy loads, belt wear can accelerate, possibly requiring replacement as early as three years. I make it a habit to inspect the belt every 50,000 kilometers, as aging belts can develop cracks, looseness, or noise. For safety, never delay replacement—a broken belt can cause engine timing failure, and the repair costs far exceed the price of a new belt. Environmental factors also matter; for example, humid regions can accelerate corrosion. Check your owner's manual, as recommendations vary by brand—my Volkswagen suggests replacement every five years, while a Toyota might last slightly longer.

[SanKai]

I usually drive to and from work. There's no fixed standard for belt replacement intervals, but generally, you should pay attention after about five years. Mainly refer to the recommendations in the maintenance manual—my Honda suggests every 6 years or 100,000 kilometers. If you drive frequently, such as daily highway commuting, the belt wears out faster, so check for cracks or damage every three years. Regularly have a mechanic test the tension with tools—don't wait for a problem to arise. It's cost-effective; replacing a belt costs a few hundred yuan, but breaking down on the road with towing and repairs can cost thousands. Remember, a squeaking sound during cold starts is a warning—address it promptly for safety. If the mileage is low, prioritize time—never ignore it.

[AmaraRose]

After using my car for four years, I noticed slight noise from the belt and realized it needed replacement. The general rule is to replace the engine belt every four to six years, depending on usage intensity. The timing belt is more critical than the drive belt because if it breaks, the engine will stall. During inspection, check for no cracks or oil contamination on the surface, and it's recommended to have a professional technician inspect it every 30,000 kilometers. Avoid high temperatures or rough roads to extend its lifespan, and don't delay replacement beyond the manual's specified period—safety comes first. Timely maintenance saves money and hassle.