Melanie Reiff
Updated on Aug 11, 2022
A mechanic will replace the control arm assembly, which is a suspension component that minimizes the transmission of shock to the body of the vehicle if the control arm assembly components are worn, corroded, or damaged in an accident.
You may need this service if you notice wheel alignment issues, clunking or squeaking noise, or your vehicle pulls to one side when braking.
If the control arm assembly is damaged, your vehicle is not safe to drive. That’s why price comparison and car insurance super app Jerry has compiled everything you need to know about the control assembly replacement service. We’ll break down what the service is, how it’s done, and when you need it.
The exact cost varies between different Smart models. For example, newer vehicle models are usually made with more expensive materials, so recent or high-end models will cost more, especially if your service requires a part replacement. Use the table below to estimate the cost for your own vehicle.
CarTotal Cost EstimateParts CostLabor CostAverage Dealer PriceEstimated Service Duration

What is a control arm assembly replacement?

During this service, the mechanic will disassemble the wheel and tire to assess the control arm assembly components located in the front and rear of your vehicle and replace them.
The total cost of parts and labor to replace the control arm assemble ranges between $264 and $900 depending on the car you drive and the auto repair shop you go to.

How to replace a control arm assembly

The mechanic will complete the following steps to replace the control arm assembly:
  • Take apart the wheel and tire assembly
  • Detach the stabilizer bar links from the control arm and disconnect the ABS wiring if applicable
  • Remove the control arm mounting bolts from the frame and axle carrier if the control arm is located in the back
  • Remove the nut from the ball joint stud and push the stud through the steering knuckle to disconnect the front control arm
  • Inspect the control arm for corrosion or damage
  • Install the new control arm using new mounting bolts or fasteners
  • Test drive the vehicle to make sure the problem is resolved
Your vehicle will need to be realigned after the control arm assembly is replaced. The mechanic will refer you to a professional alignment shop to have your car aligned to factory specifications.

When do I need to replace my control arm assembly?

You’ll need to replace your car’s control arm assembly promptly if you notice the following symptoms:
  • Wheel alignment issues
  • Clunking or squeaking noises when you drive over bumps in the road
  • Vehicle pulls to one side when you are braking
  • Constant steering correction because vehicle won’t track straight when driving
If you are in an accident and notice symptoms take your car to a mechanic immediately to have the control arm inspected for damages. You can continue to drive your vehicle until you schedule a repair if the problem is limited to noise issues.

How to save money on car insurance

If you need to save money on car ownership, don’t cut repair costs, shop cheap car insurance and keep the coverage with Jerry instead.
A licensed broker, Jerry does all the hard work of finding cheap quotes from the top name-brand insurance companies and buying new car insurance. Jerry will even help you cancel your old policy, and if you ever have any questions, agents are just a text away!
Keep in mind that your location is another factor that determines the final cost of repairs. Areas with higher cost of living will usually have more expensive car repair services, especially if there’s less local competition. Check out the table below for an estimate of what Smart drivers pay in different cities.
CityCarTotal Cost EstimateParts CostLabor CostAverage Dealer PriceEstimated Service Duration
Jerry doesn’t just offer fair price repair estimates for Smart drivers! Our team of writers has collected everything you need to know for every car. Here’s how much the repair costs for some popular cars:
CarTotal Cost EstimateParts CostLabor CostAverage Dealer PriceEstimated Service Duration
The cost of repairs might vary depending on which Smart you drive, but there’s an easy way to save money for the services you need! Just download the Jerry app for help lowering your insurance premiums. In less than 45 seconds, Jerry collects all of your information from your existing insurer. Choose from competitive quotes from top insurance companies and Jerry takes care of the rest—securing your new policy and helping you cancel your old one upon request.
With an average annual savings of $887, Jerry can help you free up funds for the repairs your Smart’s needs.