Car suspension control arms are a critical component of a vehicle's suspension system. They are typically made of steel and connect the suspension system's components, including the wheel hub and the chassis.

Control arms are designed to provide stability and support for the vehicle while also allowing for movement in the suspension system. They have several key functions, including:

1. Maintaining proper wheel alignment, control arms help to keep the wheels aligned correctly to ensure optimal handling and tire wear.

2. Supporting the weight of the vehicle, control arms bear the weight of the vehicle, transferring it from the suspension to the chassis.

3. Absorbing road shocks, control arms work in conjunction with other suspension components to absorb bumps and shocks from the road, providing a smoother ride for passengers.

4. Controlling wheel movement, control arms help to limit the movement of the wheels, preventing them from moving too far and causing damage to the suspension system.

There are different types of control arms, including upper and lower control arms. The design and location of these arms depend on the specific make and model of the vehicle. Control arms can wear out over time due to exposure to the elements, constant use, or damage from road debris. When this happens, they need to be replaced to maintain proper suspension function and vehicle safety.

Find out more about suspension maintenance and repairs for your vehicle suspension control arms by consulting with a Christchurch suspension professional and posting your job on Servo