Control Arm A2213306311 For Mercedes W221-6.3AMG

1. What is an automobile control arm?

Control arm, also known as swing arm, is an important part of automobile chassis system, and its comprehensive mechanical properties play a vital role in the safety and handling stability of vehicles.

2. What is the function of the automobile control arm?

The control arm elastically connects the wheel and the car body through the ball hinge or bushing, and transmits various forces acting on the wheel to the car body, while ensuring that the wheel moves according to a certain trajectory.

In the process of driving, the control arm needs to bear the braking force generated when the vehicle rotates sideways. Keep the chassis structure stable; Stabilize the position of vehicles and shock absorbers; Slow down the shaking caused by driving; And avoid the unstable situation of vehicle running.

Therefore, the automobile control arm (including the bushing and ball head connected with it) should have sufficient rigidity, strength and service life.

3. How to detect whether the control arm is damaged?

Shake the tire up and down/left and right with a crowbar, and observe the clearance of the ball head of the control arm;

Observe the bushing and dust cover for cracks and damage.