CV Joint Replacement Cost Guide UK

When you're driving, you expect a smooth, responsive experience, especially when navigating turns. A crucial component ensuring this is your vehicle's Constant Velocity (CV) joint. These intricate parts are essential for transferring power from the gearbox to the wheels, allowing them to spin at a constant velocity even when steering or the suspension moves up and down. If you've noticed unusual noises or vibrations, a failing CV joint might be the culprit, and understanding the potential replacement costs is the first step towards getting your vehicle back in top condition.

A CV joint works much like a complex kneecap, transferring torque through a mechanism that can turn to the left and right with a limited range of motion. It’s central to the steering and driveshaft function in most modern cars. Depending on your make and model, you might have anywhere from two to eight CV joints in your vehicle, though most modern front-wheel-drive cars typically have two – one on each side of the front axle. Four-wheel-drive vehicles, like a Ford Explorer, often feature four. When these vital components start to wear out, you'll experience noticeable steering issues, unsettling jolts when driving, and distinct knocking or grinding noises. Addressing these symptoms promptly is crucial for both your vehicle's health and your safety on the road.

How Much Does a CV Joint Replacement Cost?

The average cost of replacing a CV joint in the UK typically ranges between £200 and £400. This figure can fluctuate significantly based on several factors, including your vehicle's make and model, the specific location of the faulty joint, and whether you opt for genuine OEM (Original Equipment Manufacturer) parts, aftermarket alternatives, or remanufactured units. For performance vehicles or those with more complex suspension setups, the cost can easily triple.

Component Breakdown: Parts vs. Labour

When you look at the total cost, it's generally split between the price of the CV joint itself and the labour required for its installation. The CV joint part can cost anywhere from £60 to £150, but for some premium or less common vehicles, this can extend to several hundred pounds. The remainder, typically between £150 and £250, covers the labour charge. It's worth noting that rear joints are often easier to access than front joints, which can sometimes lead to a slightly lower labour cost for their replacement.

Note: Prices are estimates and were correct at the time of writing (February 2022). Cost estimates may have changed since, our figures should be used as a starting point for your own research.

Vehicle-Specific CV Joint Replacement Costs

The specific make and model of your vehicle play a significant role in determining the overall cost. Some vehicles are inherently more complex to work on, requiring more time and specialised tools, which naturally drives up labour charges. Additionally, the cost of the CV joint part itself can vary widely depending on the manufacturer and the availability of the part. The following chart outlines estimated costs for replacing a front lower CV joint, which is the most common type found in many vehicles.

Key Factors Influencing CV Joint Replacement Costs

Beyond the average price, several specific factors can significantly impact the final bill for a CV joint replacement. Understanding these can help you anticipate costs and make informed decisions.

CV Joint Placement

The location of the CV joint within your vehicle is often one of the most influential factors regarding costs. For instance, in a four-wheel-drive vehicle with a rear CV axle, replacing those joints is typically less expensive than front joints. This is because rear joints are often more accessible, allowing mechanics to remove the wheel and access the CV joint without needing to dismantle parts of the steering rack or tie rods. This simpler access translates to less labour time.

Most modern front-wheel-drive cars primarily feature two CV joints located at the front, at the end of the CV axle, connecting to the wheel hub. Other vehicles might have more complex setups, including inner and outer CV joints connected by a CV axle. If an inner CV joint needs replacing, the outer one (and the entire CV axle) often needs to be removed first, increasing the complexity and thus the labour costs. While you might only need to replace one CV joint at a time, if multiple joints or associated steering components (like control arms or tie rods, which can cost £20 to £300 each) are damaged, it's often recommended to address them simultaneously to save on repeated labour charges.

Vehicle Make and Model

The make, model, and even the year of your vehicle directly impact replacement costs. Some vehicles, like certain Honda or BMW models, are known for being relatively straightforward to dismantle, making CV joint replacement less time-consuming. Conversely, vehicles from manufacturers like Ford or Infiniti might require more intricate procedures, increasing labour time. The popularity and commonality of your vehicle also affect part availability and pricing; parts for widely produced models are often cheaper and easier for mechanics to source. Mechanics are also more likely to charge a lower rate if they are familiar with your vehicle's specific setup, whereas an unfamiliar model might incur a higher estimate to account for potential unforeseen difficulties.

Part Type: OEM, Aftermarket, or Remanufactured?

You can almost always save money on parts by choosing aftermarket or remanufactured options over OEM parts. OEM parts are identical to those installed by the manufacturer when the car was new, ensuring perfect fit and often coming with a manufacturer's warranty. However, they are typically the most expensive. Aftermarket parts, manufactured by third-party companies, are designed to fit and function like the original but often at a lower cost. Brands like MOOG are popular aftermarket choices, with CV joints costing significantly less than OEM equivalents.

Another economical and environmentally friendly option is remanufactured parts. These are used parts that have been thoroughly inspected, cleaned, and rebuilt to meet original manufacturer standards. Remanufacturing uses significantly fewer resources than producing new parts, making them a budget-friendly and sustainable choice. Discussing these options with your mechanic can help you balance cost, quality, and longevity.

Labour Rates

Labour will almost always be the most substantial aspect of the total cost. You can expect to pay an average of £50 to £70 per hour for CV joint replacement labour in the UK. The job can take anywhere from one hour for a straightforward outer joint replacement to four hours or more for complex inner joints or less accessible locations. Mechanic rates vary widely across the country, from small independent garages to large dealerships. Geographic location plays a significant role, with rates in metropolitan areas typically being higher than in rural ones. Always get a detailed quote before authorising any work.

Spotting a Bad CV Joint: Key Symptoms

Recognising the signs of a failing CV joint early can save you from more extensive and costly repairs down the line, not to mention enhance your driving safety. Here are the most common symptoms to look out for:

1. Unsettling Noises When Turning

Perhaps the most common and distinctive symptom of a failing CV joint is a persistent clicking, clunking, or grinding noise, especially when turning, accelerating, or driving over bumps. This sound often becomes louder and more frequent the faster you drive or the sharper the turn. These noises occur because the internal components of the joint, deprived of adequate lubrication due to a damaged boot, are grinding against each other. While other steering components like the control arm or tie rods can also cause similar noises, a mechanic can accurately diagnose the source.

2. Vibrations or Bouncing During Driving

If your car starts to vibrate or bounce, even on smooth roads, it could indicate an issue with the CV joints. Healthy CV joints ensure a smooth transfer of power from the axle to the wheel, even when the wheel is turned. If the joint is cracked, worn, or lacking grease, it can no longer rotate smoothly, leading to an uneven and bouncy ride. You’ll likely feel these vibrations through the steering wheel, as the uneven force transfer resonates through the steering assembly.

3. Axle Wobble

Any noticeable wobble in the axle is a serious concern and should be addressed immediately. While this can be a symptom of several issues, including problems with tie rods, the axle itself, or the steering rack, a failing CV joint is a common cause. You might notice the axle wobbling on one side of the vehicle. If you safely jack up your car and attempt to manually wobble the wheel back and forth, excessive play indicates a problem with the steering or suspension components, including the CV joint, control arm, or tension bar.

4. Visible Damage to the CV Boot

The CV joint is protected by a rubber or thermoplastic boot that keeps grease in and contaminants (like dirt and water) out. It's always a good idea to periodically inspect these boots for any visible cracks, tears, or signs of grease leakage. If the boot is damaged, the grease will escape, and moisture and grit will enter, quickly destroying the joint. Catching a damaged boot early might allow for just a boot replacement and regreasing, a much cheaper fix than replacing the entire joint.

5. Steering Pull or Excessive Play

Issues with the steering assembly often manifest as either a 'pull' – where the vehicle constantly drifts to one side without steering input – or excessive 'play' in the steering wheel, meaning you can turn the wheel a significant amount before the wheels respond. If your vehicle's front end is correctly aligned, yet you experience either of these symptoms, it points to a problem within the steering or suspension system, and a faulty CV joint could be a contributing factor.

DIY CV Joint Replacement: A Step-by-Step Guide

Replacing a CV joint yourself can save a significant amount on labour costs, but it's a complex job that requires specific tools and a good level of mechanical aptitude. Some vehicles require a front-end alignment after CV joint replacement, which you would need to factor in. Always consult your vehicle's service manual for specific instructions and torque specifications.

Please Note: These instructions are generally for the lower CV joint, which is the most common. Replacing an upper CV joint often requires additional steps, such as removing the entire CV axle and tension rod.

Tools You'll Need:

• Floor Jack and Jack Stands
• Lug Wrench
• Breaker Bar
• Socket Set (common sizes: 30mm, 32mm, 6mm, 18mm – or imperial for US vehicles)
• Torque Wrench (highly recommended for correct tightening)
• Needle-Nose Pliers
• Rubber Mallet or Ball-Peen Hammer
• CV Joint Press or Fork (can often be rented from auto parts shops)
• Penetrating Fluid
• Brake Cleaner
• Automotive Grease
• Wheel Chocks

The Process:

1. Preparation: Park your vehicle on a flat, level surface. Engage the parking brake and place wheel chocks behind the rear wheels (if working on the front) or front wheels (if working on the rear). Turn off the ignition and remove the key. For added safety, some mechanics disconnect the negative terminal of the battery.
2. Lift and Secure: Using your floor jack, carefully lift the side of the vehicle where the CV joint needs replacing. Once lifted, immediately place sturdy jack stands under the vehicle's frame at approved support points to ensure it is securely supported. Never work under a vehicle supported only by a jack.
3. Remove Wheel: Use the lug wrench to loosen and remove the wheel nuts, then take off the wheel.
4. Access Axle Nut: Locate the large axle nut in the centre of the wheel hub. Determine if it's a 30mm or 32mm (or imperial equivalent) and use your breaker bar to loosen it. This nut is usually very tight.
5. Apply Penetrating Fluid: Liberally spray penetrating fluid on all exposed steering assembly bolts, including the caliper bracket bolts, control arm bolts, and the ball joint itself. Allow it to soak for several hours or overnight if possible, as this significantly aids in bolt removal.
6. Remove Brake Caliper: Locate the bolts securing the brake caliper to the knuckle. Remove these bolts and carefully lift the caliper off the disc. Do not let it hang by the brake hose; support it with a wire or bungee cord from the suspension spring.
7. Disconnect Control Arm: Use needle-nose pliers to remove the cotter pin from the lower control arm nut. Then, remove the nut. The control arm should now be able to be separated from the CV joint/steering knuckle. You may need to use a rubber mallet or a ball joint separator tool to gently tap it loose.
8. Remove Steering Knuckle: Carefully detach the steering knuckle from the vehicle. This may involve disconnecting other components depending on your vehicle's design (e.g., tie rod end).
9. Remove CV Joint Snap Ring: Clean the top of the CV joint where it meets the knuckle with brake cleaner. Using needle-nose pliers, carefully remove the snap ring that holds the CV joint in place within the knuckle.
10. Press Out Old CV Joint: Position your CV joint press or separator tool and press the old CV joint out of its socket in the steering knuckle. A heavy hammer and a large flat screwdriver can sometimes be used, but extreme care is needed to avoid damaging the control arm or knuckle.
11. Clean Area: Thoroughly clean the CV joint mounting area on the steering knuckle with brake cleaner to remove old grease and debris.
12. Install New CV Joint: Insert the new CV joint from the bottom of the steering knuckle. Using the CV joint press tool (or a rubber mallet with extreme caution), press the new joint firmly into place until it's fully seated. Any damage to the new part during installation could compromise its integrity.
13. Secure Snap Ring: Reinsert the snap ring to secure the new CV joint in the knuckle.
14. Grease and Reassemble: Apply fresh automotive grease to all moving parts and mating surfaces.
15. Reconnect Steering Knuckle: Reconnect the steering knuckle assembly to the control arm and any other components that were detached. Ensure all nuts are tightened to the manufacturer's specified torque using a torque wrench.
16. Reinstall Brake Caliper: Carefully reposition the brake caliper and reattach its mounting bolts, tightening them to spec.
17. Reinstall Axle Nut: Reinstall the large axle nut and tighten it to the manufacturer's specified torque. Insert a new cotter pin if required.
18. Final Steps: Put the wheel back on, tighten the lug nuts, lower the vehicle off the jack stands, and give the lug nuts a final torque check.

After replacing a CV joint, it’s often advisable to have a professional front-end wheel alignment performed. This ensures that your steering geometry is correct, preventing premature tyre wear and maintaining safe handling. Always test the steering at low speeds in a safe, open area before driving on public roads.

Frequently Asked Questions About CV Joints

Can I drive with a faulty CV joint?

While you might be able to drive short distances with a bad CV joint, it is strongly advised against. A failing CV joint can lead to a loss of steering control if it completely breaks, posing a significant safety risk. The symptoms will worsen over time, and the constant vibration and play can cause premature wear on other, more expensive steering and suspension components.

How long will a noisy CV joint last?

There's no definitive timeline for how long a noisy CV joint will last. Some can go for weeks or even months, while others might fail completely within days. However, once the characteristic clicking or clunking starts, the damage is already occurring. For your safety and to prevent further damage to your vehicle, it's crucial to address a noisy CV joint as quickly as possible.

Can a CV Joint make a humming noise?

Yes, a CV joint can make a humming or growling noise, particularly if the protective boot has failed and the internal lubricant has dried out or been contaminated. This sound indicates that the joint's internal components are not rotating smoothly. While a full joint replacement is often necessary, in some early stages, if the joint isn't too damaged, replacing just the boot and regreasing the joint might be an option. However, this is less common for established humming noises.

How do you check a CV joint for play?

To check for play in a CV joint, park your car on a flat, level surface, engage the parking brake, and chock the wheels. Jack up the side of the car you wish to inspect and secure it with jack stands. With the wheel off the ground, hold the wheel at the 3 and 9 o'clock positions and try to shake it horizontally. Then, hold it at the 12 and 6 o'clock positions and shake it vertically. Any significant play or clunking sounds indicate wear in the steering or suspension assembly, which could include the CV joint, ball joints, or wheel bearings. A visual inspection of the CV boot for tears or grease leaks should also be performed.

Conclusion

Replacing a CV joint is a common automotive repair that typically costs between £150 and £400 in the UK, with performance parts or complex installations potentially tripling that figure. While the average cost is balanced between parts and labour, factors such as the joint's location, your vehicle's make and model, and your choice of parts (OEM, aftermarket, or remanufactured) can significantly influence the final price. Recognising symptoms like clicking noises, vibrations, or visible boot damage is key to addressing the issue promptly. For the mechanically inclined, a DIY replacement is possible but requires specific tools and attention to detail. Ultimately, addressing a failing CV joint ensures your vehicle remains safe, smooth, and reliable on the road.

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