This OEM coil spring is essential for maintaining optimal ride quality and stability in your BMW 320i xDrive and 328i xDrive models from 2013 to 2015, as well as the 328d xDrive from 2014 to 2015. Located at the front left or right of your vehicle, it supports the vehicle's weight and absorbs shocks from the road, ensuring a smooth driving experience. If you're experiencing excessive bouncing, uneven tire wear, or handling issues, this part may be worn out or damaged. OEM part numbers 6874373, 6791553, 6874374, and 6791554 ensure compatibility and high performance, making this an authentic replacement for reliable function.