BMW Control Arm - Febi Bilstein 31122347963 525i, 528i, 530i, 535i, 545i, 550i, M5

OE Numbers

31122347963, 31126760181, 31126768297, 31124028607

Product Information

Suspension Control Arm

Control arms are crucial link in a vehicle's suspension connecting the suspension to a vehicle's subframe. These pieces are usually hinged to allow for suspension to travel and articulate as the vehicle rides over obstructions in the road and while the vehicle turns. Many vehicles such as those with independent suspensions have multiple links and feature several connection points and arms to offer better ride quality and comfort.

As bushings and joints in a control arm begin to wear you may notice a looseness feel in your suspension. And while many arms have replaceable and serviceable individual components, many still require the replacement of the entire arm. Below are signs of when a replacement control arm may be needed:

Suspension Control Arm Failure Symptoms

• Play in suspension joints where these arms meet the subframe and/or knuckle
• Buckling noise emanating from the suspension
• Uneven tire wear
• Inability to properly align vehicle
• Shutter or vibration coming from the steering wheel at highway speed