The sway bars (also known as anti-roll bars) on your E60 5-Series reduce body roll during cornering. It's the difference between a vehicle that wallows through the corners and one that is sure-footed and confidence-inspiring. Over time, the links connecting the sway bar to the suspension will wear out, compromising the dynamics of your vehicle. An easy job, replacing the sway bar links is a great way to restore feel to your car.