logo

Mercedes-Benz 400E 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

(28)

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.

See availability

Customer Ratings

(28)

Control Arm Assembly Replacement Service

How much does a Control Arm Assembly Replacement cost?

On average, the cost for a Mercedes-Benz 400E Control Arm Assembly Replacement is $325 with $129 for parts and $196 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1993 Mercedes-Benz 400EV8-4.2LService typeControl Arm Assembly - Front Upper Left ReplacementEstimate$474.66Shop/Dealer Price$547.90 - $747.76
1993 Mercedes-Benz 400EV8-4.2LService typeControl Arm Assembly - Rear Lower Left ReplacementEstimate$492.67Shop/Dealer Price$565.90 - $774.77
1993 Mercedes-Benz 400EV8-4.2LService typeControl Arm Assembly - Front Upper Right ReplacementEstimate$462.05Shop/Dealer Price$531.02 - $727.68
1993 Mercedes-Benz 400EV8-4.2LService typeControl Arm Assembly - Front Lower Right ReplacementEstimate$685.13Shop/Dealer Price$806.54 - $1159.80
1992 Mercedes-Benz 400EV8-4.2LService typeControl Arm Assembly - Rear Upper Left ReplacementEstimate$487.75Shop/Dealer Price$563.68 - $771.81
1992 Mercedes-Benz 400EV8-4.2LService typeControl Arm Assembly - Front Lower Right ReplacementEstimate$685.13Shop/Dealer Price$806.91 - $1160.45
1992 Mercedes-Benz 400EV8-4.2LService typeControl Arm Assembly - Front Upper Right ReplacementEstimate$462.05Shop/Dealer Price$531.05 - $727.74
1993 Mercedes-Benz 400EV8-4.2LService typeControl Arm Assembly - Front Lower Left ReplacementEstimate$683.81Shop/Dealer Price$804.89 - $1157.16
Show example Mercedes-Benz 400E 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

Number of Mercedes-Benz Control Arm Assembly Replacement services completed
308+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(28)
Rating Summary
26
2
0
0
0
26
2
0
0
0

Ryan

23 years of experience
85 reviews
Request Ryan
Ryan
23 years of experience
Request Ryan
by Richard
Mercedes-Benz 400E V8-4.2L - Oil Pressure Sensor - Huntersville, North Carolina
Very upfront

Ryan

6 years of experience
61 reviews
Request Ryan
Ryan
6 years of experience
Request Ryan
by michael
Mercedes-Benz 400E V8-4.2L - Power Steering Pump - Phoenix, Arizona
ryan was good but you service was nasty ,and i will never used you all again. I was a good customer and i spend money with you for over 3 years and i never thought i would get that kind of service..

Andy

5 years of experience
27 reviews
Request Andy
Andy
5 years of experience
Request Andy
by Liz
Mercedes-Benz S500 V8-5.0L - Control Arm Assembly Replacement (Front Lower Left, Front Lower Right) - Pearland, Texas
Such a beautiful personality and Andy is a very skilled mechanic.. I plan to have Andy continue working on my Mercedes Benz when needed.. he is 5 STAR ⭐️ PLUS

Jay

38 years of experience
1035 reviews
Request Jay
Jay
38 years of experience
Request Jay
by Jesse
Mercedes-Benz S430 V8-4.3L - Control Arm Assembly Replacement (Front Upper Left) - Rialto, California
great experience.

Excellent Rating

(28)
Rating Summary
26
2
0
0
0
26
2
0
0
0
Number of Mercedes-Benz Control Arm Assembly Replacement services completed
308+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

P2562 OBD-II Trouble Code: Turbocharger Boost Control Position Sensor Circuit
P2562 Code Definition The P2562 code is a generic powertrain code related to vehicle speed control and the idle control system. It...
Read more
Is it Safe to Drive With a Stuck Caliper?
The caliper is part of the brake assembly which houses the brake pads and pistons. If you have a stuck caliper, the...
Read more
The Traveler’s Guide to Driving in Chile
Chile Chile is a fascinating place to visit, and you can find quite a few attractions (https://www.tripadvisor.com/Attractions-g294291-Activities-Chile.html) to enjoy while you are there. You might want to head to the Torres del Paine National Park, Lago Todos Los Santos, Parque...
Read more

Why is my tachometer reving up to 3000rpms while only driving 35 - 40 mph in town?

It sounds like you may have a transmission that is not shifting into second or third gear and would need to have the system checked to see what is causing it. Whenever a used vehicle is purchased, it is a...
Read more

Clicking sound when turning over.

This may be related to a faulty starter solenoid. The starter solenoid is located on the starter and has internal electrical contacts that transmit electricity to the starter. When this fails, it may cause a clicking sound and will not...
Read more

Hard to get into first gear

This may suggest failing transmission synchros. As you may know, when a clutch drags, it is not letting go of the disk fully which overloads the synchros and burns up the friction surfaces quickly. Synchros work by speeding up or...
Read more
  1. Home
  2. Estimates
  3. Mercedes-Benz
  4. 400E
  5. Control Arm Assembly Replacement

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

Read FAQ
GET A QUOTE