Parts for your 2018 Ford Fiesta-Control arms

Understanding Control Arms on the 2018 Ford Fiesta

When it comes to the suspension system of the 2018 Ford Fiesta, control arms play a crucial role in ensuring a smooth ride and proper handling. Control arms, also known as A-arms or wishbone arms, are an integral part of the vehicle's front suspension setup. These components connect the wheel hub and steering knuckle to the chassis, allowing the wheels to move up and down while maintaining proper alignment and stability.

The 2018 Ford Fiesta utilises a front suspension design that includes lower control arms. Generally, the Fiesta features a MacPherson strut suspension at the front, which is a common design in many compact cars. In this setup, the control arms support the struts and enable vertical motion of the wheels to absorb bumps and maintain road contact. The control arms also help control the movement of the wheels in relation to the car's frame, preventing excessive movement that could affect handling and tyre wear.

On the other hand, the rear suspension of the 2018 Fiesta typically does not use traditional control arms like the front. Instead, it often features a torsion beam or twist-beam rear suspension. This design is simpler and less costly, providing adequate ride comfort and handling for a car of this class while minimising moving parts. Because of this, control arms are not a part of the rear suspension on the 2018 Fiesta, which is pretty standard in many small hatchbacks and sedans.

The purpose of control arms in the front suspension boils down to stability and articulation. They allow the front wheels to move up and down when the car drives over irregular surfaces but keep the wheels aligned correctly, helping the tyres maintain consistent contact with the road. This not only improves ride quality but also enhances steering responsiveness and overall vehicle control.

Control arms are usually fitted with bushings where they connect to the chassis. These bushings absorb vibrations and reduce noise, making drives more comfortable. Additionally, ball joints connect the control arms to the steering knuckles, enabling precise steering inputs. These parts, especially bushings and ball joints, tend to wear out over time due to constant movement and exposure to road conditions.

Replacing or servicing control arms on the 2018 Ford Fiesta is something owners should be aware of as part of regular maintenance, especially if the car is driven frequently on rough roads or has accumulated high mileage. Worn control arm bushings or ball joints can manifest as clunking noises, uneven tyre wear, poor steering response, or handling problems. Detecting these symptoms early can help avoid further damage to the suspension or steering systems.

When it comes to servicing control arms, technicians generally inspect the condition of the bushings and ball joints during routine suspension checks. If the bushings are cracked, torn or hardened, or if ball joints show excessive play, it is advisable to replace the control arms or the worn components. In many cases, entire control arms are swapped out because they come pre-assembled with ball joints and bushings, making the process more straightforward and reliable.

Proper alignment after replacing control arms is essential to ensure the Fiesta handles correctly and the tyres wear evenly. A wheel alignment service is typically recommended after suspension work to set the camber, caster and toe angles back to factory specifications.

For everyday 2018 Ford Fiesta owners, keeping an eye on the suspension components during servicing can help extend the life of control arms and prevent unexpected repairs. Regular wash downs of the undercarriage to remove dirt and road salt, especially after wet weather, can limit corrosion on metal parts including the control arms.

In terms of cost, control arm replacement for the 2018 Fiesta is generally affordable considering it is a common part on this popular vehicle. Using genuine or quality aftermarket parts is important to maintain safety and durability. The control arms are designed to withstand typical driving stresses, but replacing worn parts promptly is key to maintaining the car's reliability and comfort.

In essence, control arms on the 2018 Ford Fiesta are an important component of the front suspension system. They contribute to both ride quality and handling by controlling wheel movement and alignment. Keeping these parts well maintained and addressing any wear early will ensure the Fiesta remains safe, comfortable and fun to drive for years to come.