Don’t Get Stuck on the Road: How to Change Wheel Bearing Mazda 6

If you’re experiencing a rumbling noise coming from your Mazda 6’s wheels, especially when turning or driving at higher speeds, you might be dealing with a worn-out wheel bearing. While this might sound intimidating, changing a wheel bearing on your Mazda 6 is a DIY-friendly task with the right tools and a bit of patience. This comprehensive guide will walk you through the process step-by-step, empowering you to tackle this common car maintenance job.

Why Do Wheel Bearings Wear Out?

Wheel bearings are crucial components that allow your wheels to rotate smoothly and support the weight of your vehicle. Over time, these bearings can wear out due to factors like:

• Normal wear and tear: Like any mechanical part, wheel bearings experience wear and tear over time, leading to increased friction and eventual failure.
• Heavy loads: Frequently carrying heavy loads puts extra stress on your wheel bearings, accelerating wear.
• Poor road conditions: Driving on rough roads or potholes can damage wheel bearings, causing premature failure.
• Lack of lubrication: Insufficient lubrication can lead to increased friction and wear on the bearing surfaces.

Signs of a Worn Wheel Bearing

Recognizing the signs of a worn wheel bearing is crucial for timely replacement. Here are some common symptoms:

• Rumbling or grinding noise: A distinct rumbling or grinding noise, especially when turning or driving at higher speeds, is a telltale sign of a failing wheel bearing.
• Wobbly steering wheel: A shaking or vibrating steering wheel, particularly at higher speeds, can indicate a loose or worn wheel bearing.
• Uneven tire wear: Premature or uneven tire wear can be caused by a worn wheel bearing that’s misaligned or causing the wheel to wobble.
• Clicking or popping sounds: A clicking or popping sound when turning or driving over bumps can also signal a worn wheel bearing.

Tools and Materials You’ll Need

Before you begin, gather the following tools and materials:

• Jack and jack stands
• Lug wrench
• Torque wrench
• Wheel bearing puller
• Wheel bearing race and seal installer
• New wheel bearing
• Grease
• Penetrating fluid
• Safety glasses
• Gloves

Step-by-Step Guide to Changing a Wheel Bearing on Your Mazda 6

Now, let’s dive into the step-by-step process of changing a wheel bearing on your Mazda 6:

1. Preparation and Safety:

• Park your car on a level surface and engage the parking brake.
• Chock the rear wheels.
• Use the jack to lift the affected side of the car, placing jack stands under the frame for safety.
• Remove the lug nuts and the wheel.

2. Removing the Brake Caliper and Rotor:

• Using a wrench, loosen the caliper mounting bolts.
• Carefully hang the caliper using a wire or rope, ensuring it doesn’t put pressure on the brake hose.
• Remove the brake rotor.

3. Removing the Hub Assembly:

• Remove the cotter pin and castle nut from the axle.
• Use a wheel bearing puller to remove the hub assembly from the axle.
• Be careful not to damage the axle or the hub assembly.

4. Removing the Old Wheel Bearing:

• Use the wheel bearing puller to remove the old bearing from the hub assembly.
• Carefully inspect the hub assembly for any damage or wear.

5. Installing the New Wheel Bearing:

• Apply grease to the new wheel bearing and the hub assembly.
• Use the wheel bearing race and seal installer to press the new bearing into the hub assembly.
• Ensure the bearing is properly seated and flush with the hub assembly.

6. Reassembling the Components:

• Reverse the steps of disassembly, carefully reinstalling the hub assembly, brake rotor, caliper, and wheel.
• Tighten the lug nuts to the manufacturer’s specifications using a torque wrench.
• Lower the car and remove the jack stands.

7. Final Checks:

• Test drive your Mazda 6 and listen for any unusual noises.
• Check the wheel bearing for any signs of leakage or overheating.

Tips for Success

• Use a quality wheel bearing puller and installer.
• Clean all surfaces thoroughly before reassembly.
• Apply grease liberally to all bearing surfaces.
• Tighten all bolts and nuts to the manufacturer’s specifications.
• Always work on a level surface and use jack stands for safety.

Wrapping Up: Your Mazda 6’s Wheel Bearing Journey

By following these steps and taking the necessary precautions, you can confidently change a wheel bearing on your Mazda 6 without the need for professional assistance. Remember to use high-quality parts and tools, and always prioritize safety throughout the process. This DIY project will not only save you money but also provide a sense of accomplishment and a deeper understanding of your vehicle’s mechanics.

Common Questions and Answers

Q1: How often should I replace my wheel bearings?

A: Wheel bearings typically last between 50,000 and 100,000 miles, but this can vary depending on driving conditions and maintenance habits.

Q2: Can I drive with a worn wheel bearing?

A: Driving with a worn wheel bearing can be dangerous as it can lead to loss of control and even accidents. It’s advisable to replace a worn bearing as soon as possible.

Q3: What are the signs of a failing wheel bearing?

A: Common signs include rumbling or grinding noises, a wobbly steering wheel, uneven tire wear, and clicking or popping sounds.

Q4: Can I replace only the bearing or do I need to replace the whole hub assembly?

A: In some cases, you can replace just the bearing, but in others, the entire hub assembly may need replacement. It’s best to consult your owner’s manual or a mechanic for specific recommendations for your Mazda 6.

Q5: How can I prevent my wheel bearings from wearing out prematurely?

A: You can help prolong the life of your wheel bearings by driving on smooth roads, avoiding heavy loads, and ensuring proper lubrication. Regular inspections and maintenance are also crucial.