The suspension system, a key automotive system composed of precision components such as control arms, suspension ball joints, tie rod ball joints, and stabilizer bar linkages, plays a crucial role in the smoothness and handling stability of the vehicle. The control arm, as the core component, is not only responsible for guiding the movement trajectory of the wheels, but also undertakes the important task of efficiently transmitting various forces on the wheels to the vehicle body.

Next, we will delve into how to properly install these suspension components to ensure the safety and performance of the car. This issue will focus on the replacement process of the control arm, providing professional guidance for your car maintenance.

▣ Preparation work

Before starting the control arm replacement, it is recommended to watch a detailed video using WIFI, which will help you better understand the entire control arm replacement steps and ensure a smooth repair process.

▣ Disassemble the old control arm

Lift the vehicle and remove the tire on the damaged side of the control arm.

Loosen the screws that secure the suspension ball joint to the steering knuckle.

Use a specialized tool to pull the ball head out of its fixing hole.

Use a pry bar to press the control arm downwards, causing the ball head to detach from the steering knuckle.

Loosen all screws that secure the control arm to the chassis.

Remove the old control arm from the vehicle.

▣ Install a new control arm

Before installing the new control arm, confirm that it matches the vehicle to be repaired.

Follow the reverse installation steps, first fix the screws that secure the control arm to the chassis, and then tighten the ball nut.

Use a hydraulic jack to compress the suspension, ensuring that the screws fixing the control arm are tightened in the normal position of the wheel set, and follow the tightening torque specified by the car manufacturer.

▣ Check after installation

After completing the repair, it is necessary to check and adjust the various angles of the steering system to ensure the safety and performance of the car.