Mercedes-Benz C300 Control Arm Assembly Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(601)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(601)

Control Arm Assembly Replacement Service

How much does a Control Arm Assembly Replacement cost?

On average, the cost for a Mercedes-Benz C300 Control Arm Assembly Replacement is $230 with $90 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2012 Mercedes-Benz C300V6-3.0LService typeControl Arm Assembly - Rear Lower Left ReplacementEstimate$742.50Shop/Dealer Price$837.27 - $1081.87
2016 Mercedes-Benz C300L4-2.0L TurboService typeControl Arm Assembly - Rear Lower Right ReplacementEstimate$1188.08Shop/Dealer Price$1431.84 - $2151.57
2013 Mercedes-Benz C300V6-3.5LService typeControl Arm Assembly - Front Upper Right ReplacementEstimate$774.54Shop/Dealer Price$898.36 - $1254.46
2009 Mercedes-Benz C300V6-3.0LService typeControl Arm Assembly - Front Lower Right ReplacementEstimate$843.93Shop/Dealer Price$955.17 - $1266.96
2015 Mercedes-Benz C300L4-2.0L TurboService typeControl Arm Assembly - Rear Upper Right ReplacementEstimate$413.90Shop/Dealer Price$468.31 - $610.55
2015 Mercedes-Benz C300L4-2.0L TurboService typeControl Arm Assembly - Rear Upper Left ReplacementEstimate$413.28Shop/Dealer Price$463.80 - $602.78
2014 Mercedes-Benz C300V6-3.5LService typeControl Arm Assembly - Rear Lower Right ReplacementEstimate$717.27Shop/Dealer Price$803.58 - $1041.84
2015 Mercedes-Benz C300L4-2.0L TurboService typeControl Arm Assembly - Front Lower Right ReplacementEstimate$855.01Shop/Dealer Price$975.67 - $1317.18
Show example Mercedes-Benz C300 Control Arm Assembly Replacement prices

What is a control arm and how does it work?

A control arm is a suspension component, usually made of heavy gauge steel or aluminum, that links the steering knuckle in the front — or axle carrier in the rear — to the frame of the vehicle. Many vehicles have upper and lower control arms. The inboard link(s) of the arm securely bolt to the frame of the vehicle through rubber bushings, while the outboard link of the control arm connects to the steering knuckle through a ball joint; all of which allow the control of the up and down movement of the steering knuckle or axle carrier. This minimizes the transmission of shock and vibration to the vehicle’s body.

When to consider replacing a control arm:

The structural portion of the control arm can last the life of the vehicle — except for cases of corrosion or crash damage. However, the rubber bushings and the ball joint in a control arm have a limited life. A mechanic should investigate if you notice:

  • Wheel alignment difficulties. Should the bushings, or the ball joint, in a control arm be worn, it will be impossible to properly align the vehicle. The worn components, or the entire arm, must be replaced.
  • Vehicle won’t track straight or pulls to one side. A car will not track straight and may require constant steering correction if there is a worn, bent, or loose control arm.
  • Clunking or squeaking noise. A loose control arm, or a control arm with dried out, rotted, or loose bushings, may move enough to cause detectable noise from the suspension as you go over bumps in the road.
  • Vehicle pulls to one side only when braking. Worn bushings or ball joints can allow control arm to shift when braking, causing the vehicle to pull to one side. Although, this could also be caused by brake calipers.

How do mechanics replace a control arm?

  • The vehicle is raised and supported on steel jack stands, and the wheel and tire assembly is removed.
  • Stabilizer bar links are detached from the control arm, if applicable. ABS wiring to the wheel speed sensor, if routed along the arm, is disconnected.
  • Control arm mounting bolts are detached from the frame and from the axle carrier if the control arm is in the rear.
  • For front control arms connected to the steering knuckle via a ball joint, the nut is removed from the ball joint stud and the stud is pushed through the steering knuckle to free the arm.
  • The arm is lowered from the vehicle and examined by the mechanic to confirm that the noise, or other problem, actually originated from a defect in the arm.
  • The new arm is installed using new mounting bolts if required by the service manual. In many cases, the fasteners must be tightened with the vehicle weight on the suspension in order to ensure the bushings are in a neutral, or resting, position.
  • The vehicle is lowered and road tested to confirm the problem is resolved. Replacing a control arm will change the vehicle alignment settings and the mechanic will refer you to a professional alignment shop to have the vehicle alignment set to factory specifications.

Is it safe to drive with a control arm problem?

No. If the car wanders on the road, pulls to one side, or noise from the suspension is loud, you need to schedule repair right away. Should the problem be limited to low levels of noise, such as clunking or squeaking, continued use of the car is reasonable until you can schedule a repair. Should the control arms be damaged as a result of a collision, it would be unsafe to drive the car until it is repaired.

When replacing a control arm keep in mind:

  • The number of control arm types vary from vehicle to vehicle depending on the design of the vehicle suspension.
  • Control arms should be replaced in pairs — arms on both sides of a front or rear axle — if the reason for replacement is worn control arm bushings or a worn ball joint.
  • All other suspension components should be inspected when control arms are replaced because looseness, damage, or excessive wear in other parts of the suspension system will make it impossible to perform a wheel alignment after the control arms are replaced.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(601)

Rating Summary
569
18
6
1
7
569
18
6
1
7

David

19 years of experience
39 reviews
David
19 years of experience
Mercedes-Benz C300 V6-3.0L - Oil Change - Arvada, Colorado
David got the oil change done, I had to properly screw back the plastic underbelly cover, but small potato's , thank you.

Derrick

21 years of experience
109 reviews
Derrick
21 years of experience
Mercedes-Benz C300 V6-3.0L - Serpentine/Drive Belt Replacement - New York, New York
Derrick did a great job replacing my serpentine belt to my Mercedes as well as replacing the pulley. When preparing to fix my car Derrick already concluded from his knowledge that something I had to be broken for my belt to break. It was the pulley. Derrick had no problem taking me to the auto store to pick up the needed part. He made sure it was correct before leaving & after a few my car was back up and running. Thanks for your help and keeping me at ease with the frustrations of a broken down car.

Juan

10 years of experience
426 reviews
Juan
10 years of experience
Mercedes-Benz C300 V6-3.0L - Check Engine Light is on - Oviedo, Florida
Juan is the most knowledgeable mechanic I've ever met- he really cares about his work. Highly recommended!

Robert

21 years of experience
1307 reviews
Robert
21 years of experience
Mercedes-Benz C300 V6-3.0L - Battery - Commerce City, Colorado
I would highly recommend Robert

Excellent Rating

(601)

Rating Summary
569
18
6
1
7
569
18
6
1
7
Number of Mercedes-Benz C300 services completed
6611+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

10 Tools Every Professional Automotive Technician Needs
Automotive technician jobs are made easier with the right tools. The Tite-Reach Ratchet Extender lets you access tight spots without removing parts.
A Buyer’s Guide to the 2012 Buick Enclave
The The 2012 Buick Enclave was created specifically for younger buyers and those with growing families who have a taste for luxury. The Enclave is available in four levels which include: base, convenience, leather, and premium. It has ample room...
How to Buy a Personalized License Plate in Maine
If If you want to stand out a little bit, and make your car special and unique, a personalized license plate may be perfect for you. With a personalized Maine license plate, you can choose a custom message to be...

Car hesitates while accelerating, check engine light on all the time

The Check Engine Light going on and off is most likely caused by an engine misfire. The intake manifold could be leaking vacuum when it is cold, and sealing up when the vehicle warms up. The engine running poorly can...

swinging steering wheel 65mph

Hello. It is possible that there is a problem with the wheel bearings (https://www.yourmechanic.com/services/wheel-bearings-replacement), front ball joints (https://www.yourmechanic.com/services/ball-joint-front-replacement), and rear ball joints (https://www.yourmechanic.com/services/ball-joint-rear-replacement), and control arms (https://www.yourmechanic.com/services/control-arm-assembly-replacement). These components have been known to cause the problem you are experiencing. If...

I have a bus that contain a Cummins engine and Allison transmission. The problem is that the vehicle does not exceed the speed 80 Km/h / 50 mph.

Hi there. Check the fuel filter and the fuel water separator for if they are old and need changed. Check the fuel water separator for a valve on the bottom and if there is a valve, if you can open...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com