logo

BMW 640i 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

(4)

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

(4)

Control Arm Assembly Replacement Service

How much does a Control Arm Assembly Replacement cost?

On average, the cost for a BMW 640i Control Arm Assembly Replacement is $230 with $90 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2016 BMW 640iL6-3.0L TurboService typeControl Arm Assembly - Rear Lower Left ReplacementEstimate$1557.14Shop/Dealer Price$1913.98 - $2970.31
2014 BMW 640iL6-3.0L TurboService typeControl Arm Assembly - Rear Upper Right ReplacementEstimate$555.15Shop/Dealer Price$660.65 - $969.93
2013 BMW 640iL6-3.0L TurboService typeControl Arm Assembly - Rear Lower Left ReplacementEstimate$1548.13Shop/Dealer Price$1901.92 - $2955.96
2015 BMW 640iL6-3.0L TurboService typeControl Arm Assembly - Rear Lower Left ReplacementEstimate$938.45Shop/Dealer Price$1139.82 - $1736.60
2013 BMW 640iL6-3.0L TurboService typeControl Arm Assembly - Front Upper Left ReplacementEstimate$771.35Shop/Dealer Price$921.25 - $1352.59
2015 BMW 640iL6-3.0L TurboService typeControl Arm Assembly - Rear Upper Right ReplacementEstimate$555.15Shop/Dealer Price$660.94 - $970.43
2013 BMW 640iL6-3.0L TurboService typeControl Arm Assembly - Front Upper Right ReplacementEstimate$771.35Shop/Dealer Price$917.68 - $1346.34
2015 BMW 640iL6-3.0L TurboService typeControl Arm Assembly - Front Lower Left ReplacementEstimate$610.95Shop/Dealer Price$730.44 - $1081.60
Show example BMW 640i 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 BMW 640i services completed
44+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
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 BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(4)
Rating Summary
3
0
0
1
0
3
0
0
1
0

Omar

13 years of experience
287 reviews
Request Omar
Omar
13 years of experience
Request Omar
by Rena
BMW 640i L6-3.0L Turbo - Creaking noise when turning the steering wheel - Fort Lauderdale, Florida
Knowledgeable, professional.

Tinashe

14 years of experience
781 reviews
Request Tinashe
Tinashe
14 years of experience
Request Tinashe
by Arie
BMW 640i L6-3.0L Turbo - Oil Change - Smyrna, Georgia


Jacob

13 years of experience
329 reviews
Request Jacob
Jacob
13 years of experience
Request Jacob
by Dwan
BMW 640i L6-3.0L Turbo - Brake Warning Light is on - Dallas, Texas
Jacob was outstanding!!! He provided a detail account of the services rendered and was very professional. He has a fantastic personality and is an asset to “Your Mechanic”. Very honest knowledgeable and trustworthy which are traits you don’t find often in the car service business.

Luis

5 years of experience
302 reviews
Request Luis
Luis
5 years of experience
Request Luis
by Kevin
BMW 750Li xDrive V8-4.4L Turbo - Control Arm Assembly Replacement (Front Lower Left, Front Lower Right) - Richmond, Virginia
Excellent! Excellent Excellent! I wish I would have found this platform years ago! I've spent thousands with dealerships and side shops but I promise I will never step foot in a shop again as long as this platform is available!! Luis is honest and very knowledgeable...moving forward he will be the only one to work on my vehicle.

Excellent Rating

(4)
Rating Summary
3
0
0
1
0
3
0
0
1
0
Number of BMW 640i services completed
44+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

P2299 OBD-II Trouble Code: Brake Pedal Position / Accelerator Pedal Position Incompatible
P2299 is an OBD-II generic code that is triggered when the engine control module (ECM) (https://www.yourmechanic.com/article/what-is-a-vehicle-s-electrical-control-unit) detects that the brake pedal position...
Read more
Insurance Requirements for Car Registration in Nevada
The The state of Nevada requires that drivers carry liability insurance, or “financial responsibility,” in order to legally operate a vehicle within the state. The minimum financial responsibility requirements for Nevada drivers are as follows: A minimum of $15,000 per...
Read more
How to Join Hertz to Save on Car Rentals
If you rent vehicles (https://www.yourmechanic.com/article/4-essential-things-to-know-before-renting-a-car) from Hertz with any regularity, it may be prudent to join the car rental company’s rewards club. Members can accrue points to use toward free rental days and other discounts (https://www.yourmechanic.com/article/how-to-find-deals-on-car-rentals-by-cheryl-knight) without paying any membership...
Read more

Fuel pump not working after sitting

If you do not hear the relay click, you may be losing power before the relay or the relay itself could be faulty. I would enlist the help of a technician who is proficient in electrical diagnosis, such as one...
Read more

How do you check and fill a transmission on a 2005 mercury mountneer

Unfortunately, your car does not have the old style dipstick access and so it is really involved to change the fluid. Drain and refill on this model requires the following tools: Rubber Tip Air Nozzle (100-D009 (D93L-7000-A), Vacuum Pump Kit...
Read more

Hazard lights won't turn off on 2012 Ford explorer.

Hi Taylor. Thanks for contacting us today. In the owner manual of your Ford Explorer, there should be a fuse and electrical relay diagram, that indicates which fuse or relay powers the hazard lights. The only way to disconnect them...
Read more
  1. Home
  2. Estimates
  3. BMW
  4. 640i
  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