The driveshaft assembly in your Mercedes-Benz is made of a range of different parts that are important to maintain. The universal joint, or u-joint, is a part that is fitted to a range of driveshafts - mostly rear-wheel drives or four-wheel drive vehicles. The universal joints are designed to help make up for the misalignment in height between your transmission and rear axle. It also helps to transfer power that works to move the vehicle. It allows the end of your driveshaft to bend and move as needed to make up for the misalignment. If your universal joint is failing, you might start to hear squeaking noises if you're moving forward or in reverse. Another noise to look out for is clunking when you're shifting from drive to reverse. Vibrations felt throughout your car as it's moving forward can be the signs of worn universal joint bearings. Find the best OEM universal joint driveshafts and related components for your Mercedes-Benz here on our site.