Why does it need to be replaced?
The Constant Velocity (CV) joint transmits gearbox speed evenly to the wheels. Because it spins at high speed it needs to be well lubricated and protected. The CV boot surrounds and protects the CV joint, keeping the lubricating grease in and the moisture and dirt out. If the CV boot is worn or damaged, it will cause the CV joint to become noisy and less effectively.
How often should the CV boot be replaced?
There's no set change interval - but we always check the fit and look for splits when your vehicle is serviced or MOT'd.
What happens if it's not replaced?
If the boot is damaged, lubricating grease will be lost. Dirt and water will get into the joint and corrode the internal bearings. The CV joint could fall apart, which would make your vehicle dangerous to drive. It;s also an MOT test requirement that it is in good condition.
What do we do?
We check the CV boot is in good condition. If it needs replacing we access the CV joint and then refit a new CV boot, re-greasing the joint at the same time.
By replacing the cv boot you will: