2022 mazda cx-5 belt replacement

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Why do Mazda CX-5 drive belts need to be replaced?

The drive belt/s on your Mazda CX-5 uses the engine revs to power the accessories in or on the engine of your vehicle. These may include your power steering, water pump air conditioning compressor and alternator.

Most Mazda CX-5's have 1 or 2 drive belts and in some instances, it may be called a serpentine belt. The belt needs to be flexible to circulate across pulleys and can be made out of perishable compositions like rubber, neoprene or urethane.

The drive belt belt/s is positioned on pulleys and operates under tension. This keeps the belt in place and gives the accessories the power required to work properly. When the belt starts to deteriorate, gets damaged or breaks the accessories may not operate properly or stop working altogether.

Mazda CX-5 drive belts should be replaced at the set service interval as outlined in the service guidelines or when needed. It's not unusual for a drive belt to become damaged or need replacing before expected, checking the drive belt at each service is recommended.

The cost of having a Mazda CX-5 drive belt/s replaced varies between $100 - $400+ depending on the style of drive belt/s and if other engine components need to be removed to allow access to replace it.

Sometimes you will get a noise warning when the drive belt tension has changed and it needs to be replaced or refitted. If you hear a squealing noise on or just after vehicle startup then it may be your drive belt letting you know it needs attention.

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When Should A Drive Belt Be Replaced?

A drive belt is responsible for several key engine functions. A faulty drive belt could severely affect your car’s performance, so it shouldn’t be ignored. 

Since a bad belt or a worn belt can manifest itself in many ways, here are the most common signs of belt failure: 

1. Squealing From Power Steering, Air Conditioning, Or The Hood

Drive belts actuate almost every engine component, including the alternator, power steering pump, water pump, and AC compressor. 

These devices demand a lot of torque from the belt to turn. So if you turn the steering or switch on your air conditioner and hear squealing, the chances are that your noisy belt has worn out.

Moreover, your car’s drive belt can sometimes slip off the pulleys or run too loose. A loose belt can also result in a squealing or chirping belt noise from under the hood. 

Low belt tension, a worn tensioner pulley, or extensive belt wear likely lead to a loose belt or noisy belt. Plus, coolant and transmission fluid leaks can cause belt slippage, leading to more belt noise.

2. Dead Battery

Your car’s drive belt (also called the alternator belt) powers the alternator. The alternator charges your battery and powers the electrical units while the car is in use. 

Without an alternator belt, your car’s battery won’t charge, eventually running out of juice. You won’t be able to turn your car on with a dead battery.

3. Engine Overheats

A water pump is a key part of your car’s cooling system. And since drive belts deliver the power necessary for a water pump to work, a faulty belt will hinder its functioning. 

If the water pump fails, your engine doesn’t have a secure way of staying at a safe temperature. This is why a drive belt failure can lead to an overheated engine.

4. Loss Of Power Steering

A drive belt runs the power steering pump in most cars. So if your drive belt snaps, the power steering pump stops working completely. As a result, you’ll lose your power steering. 

With your power steering assist gone, your steering wheel will suddenly get heavier, sometimes dangerously so.

5. Visibly Worn Belt

Drive belts often have a fixed lifespan. Over time, an old belt will grow rigid or start fraying. These are visible signs of wear, meaning it’s time for a replacement. 

It’s important to do a visual inspection under your hood during an oil change and check your drive belts. If an old belt breaks due to tension, you could be facing serious safety hazards.

6. Mileage Indicators

Most drive belts will last anywhere from 60,000 to 100,000 miles. However, some drive belts can last significantly longer than this, depending on your driving habits and other conditions. 

It’s best to check your owner’s manual for the recommended time frame for a belt replacement. Once you have this information handy, keep an eye on your vehicle’s mileage and ensure you stick to the replacement window for preventative maintenance. 

Note: The lifespan of a new belt also depends on the material it’s made of. An older Neoprene rubber belt generally lasts about 50,000 miles, whereas a new belt made from Ethylene Propylene Diene Monomer rubber (EPDM belts) can last 100,000 miles. 

7. Warning Lights Come On

If a drive belt breaks, multiple systems will lose their power. You’ll then experience one or more of the symptoms listed above, triggering a warning light in most cars.

Warning lights come on to let you know when your car has an issue, so you can fix that issue before it becomes more serious. Examples of a warning light include the battery light, brake lights, etc.

3 FAQs About Drive Belt Replacement

Let’s get to know drive belts a little bit more:

1. What Is A Drive Belt?

A drive belt (also known as a fan belt) is responsible for powering many key components in your car. These include your car’s AC compressor, alternator, power steering, and water pump. 

Here’s how it works: 

These components are equipped with pulleys, and the drive belt wraps around these pulleys and the crankshaft pulley. 

Once you start the engine, the crankshaft goes into action. The crankshaft pulley turns and sets the drive belt in motion. The spinning drive belt transfers power from the engine’s crankshaft to the accessory pulleys. 

This process then delivers power to each of your car systems. 

2. What Are The Different Kinds of Drive Belts?

Earlier cars used individual belts for different components, but now the multiple belts are replaced by a single belt. 

Drive belts could be: 

• V-belts: V-belts are endless power transmission belts that run in a pulley with a V-shaped groove. They’re generally shorter, and you’ll likely find multiple belts in older vehicles. 

A V-belt acts as an accessory belt that runs off a crank and pulley, traveling between one or two engine accessories. This accessory belt is shorter, meaning it’s less likely to slip than a single belt like a serpentine belt.

• Serpentine belts: A serpentine belt is a continuous rubber belt that drives multiple peripheral devices in an automotive engine. They’re longer and used in newer vehicles. 

The belt may be guided by an idler pulley or a belt tensioner. The belt tensioner may be manual, but most modern cars are equipped with an automatic belt tensioner. 

An idler pulley presses against the back of the fan belt and ensures it passes over more than three pulleys with a large enough wrap angle to avoid slipping. 

Serpentine belts are rather durable and usually last a longer time than V-belts do.

3. Can I Replace A Faulty Serpentine Belt Or V-belt Myself?

You can, but you shouldn’t. 

Drive belts must be under proper belt tension to work properly. A broken serpentine belt or v-belt or a broken tensioner can be difficult to work with. 

That’s why performing a v-belt or a serpentine belt replacement on your own can be tricky even with the right tools and technical know-how. 

Drive belt manufacturers today sell a wide range of industrial belts. As a result, a serpentine belt, v-belt, timing belt, etc., are easily accessible. But repairing a bad serpentine belt or v-belt is a mammoth DIY car care project. And you’d need a lot more than just the belt. 

Tools you’d need to replace a bad serpentine belt or v-belt and fix the tension include:

• Socket set
• Ratchet
• Torque wrench
• Combination wrenches
• Drain pan
• Antifreeze
• Jack and jack stands

If you aren’t sure how to replace a worn serpentine belt or v-belt yourself, it’s best to call an ASE-certified mechanic to perform the auto repair or go to a car repair shop.

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