Mercedes-Benz GL550 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

(36)

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

(36)

Control Arm Assembly Replacement Service

How much does a Control Arm Assembly Replacement cost?

On average, the cost for a Mercedes-Benz GL550 Control Arm Assembly Replacement is $198 with $46 for parts and $152 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2009 Mercedes-Benz GL550V8-5.5LService typeControl Arm Assembly - Rear Lower Left ReplacementEstimate$501.38Shop/Dealer Price$608.74 - $867.79
2013 Mercedes-Benz GL550V8-4.7L TurboService typeControl Arm Assembly - Front Upper Left ReplacementEstimate$1947.48Shop/Dealer Price$2404.15 - $3724.55
2010 Mercedes-Benz GL550V8-5.5LService typeControl Arm Assembly - Rear Lower Right ReplacementEstimate$469.38Shop/Dealer Price$576.78 - $835.87
2013 Mercedes-Benz GL550V8-4.7L TurboService typeControl Arm Assembly - Front Lower Left ReplacementEstimate$2004.47Shop/Dealer Price$2467.08 - $3791.95
2013 Mercedes-Benz GL550V8-4.7L TurboService typeControl Arm Assembly - Rear Lower Right ReplacementEstimate$2004.47Shop/Dealer Price$2467.19 - $3792.14
2015 Mercedes-Benz GL550V8-4.7L TurboService typeControl Arm Assembly - Front Upper Left ReplacementEstimate$1947.48Shop/Dealer Price$2404.14 - $3724.55
2011 Mercedes-Benz GL550V8-5.5LService typeControl Arm Assembly - Rear Upper Right ReplacementEstimate$480.80Shop/Dealer Price$588.68 - $850.04
2013 Mercedes-Benz GL550V8-4.7L TurboService typeControl Arm Assembly - Rear Upper Right ReplacementEstimate$2018.47Shop/Dealer Price$2481.81 - $3807.22
Show example Mercedes-Benz GL550 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

(36)

Rating Summary
35
0
0
0
1
35
0
0
0
1

Pardeep

21 years of experience
1050 reviews
Pardeep
21 years of experience
Mercedes-Benz GL550 V8-5.5L - Oil Change - Fremont, California
super quick

Johnny

33 years of experience
243 reviews
Johnny
33 years of experience
Mercedes-Benz GL550 V8-5.5L - Oil Change - Granite Bay, California
Outstanding!!

Rusty

23 years of experience
506 reviews
Rusty
23 years of experience
Mercedes-Benz GL550 V8-5.5L - Oil/Fluid Leak - Arlington, Texas
Very professional and seemed very knowledgeable and confident in his work. Very pleasant and seemed to do a very thorough job. Great job!

Matt

15 years of experience
130 reviews
Matt
15 years of experience
Mercedes-Benz GL550 V8-5.5L - Oil Change - Tacoma, Washington
Great Job!! Thanks.

Excellent Rating

(36)

Rating Summary
35
0
0
0
1
35
0
0
0
1
Number of Mercedes-Benz GL550 services completed
396+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1000+
experts on our platform

Recent articles & questions

5 Essential Things to Know Before Buying a Truck
Trucks Trucks are a popular option thanks to their overall versatility. They can haul people and things with ease, and they handle off-road adventures like champs. However, there are five essential things to know before buying a truck. Passengers The...
P0311 OBD-II Trouble Code: Cylinder 11 Misfire Detected
P0311 means that the powertrain control module (PCM) detects a misfire in cylinder 11, often due to a faulty spark plug or clogged fuel injector.
P0918 Gear Shift Position Circuit – Intermittent Malfunction
P0918 means there is an issue with a circuit in one of the lever positions, most likely= due to a bad transmission sensor.

Brakes randomly locking up.

Hi there. Your ABS system should keep the brake from locking up if it is working properly. With that being said, you may get different wheels braking at different times if the ABS unit sees the need to cycle the...

hi Chris well I had my water pump replaced and the timing belt was took in off and then put back on but it doesn't turn on now I

If the vehicle will not start after a timing belt replacement (https://www.yourmechanic.com/services/timing-belt-replacement), it is very likely that the replacement did not get performed to specification and the engine is out of time. This would require the engine to be disassembled...

Clicking Sound

What you are describing sounds like a faulty starter solenoid (https://www.yourmechanic.com/services/starter-replacement). A faulty starter solenoid will generally produce a clicking sound when turning the key. The starter solenoid is located on the starter and has internal electrical contacts that transmit...

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