BMW 128i Control Arm Assembly Replacement at your home or office.

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Control Arm Assembly Replacement Service

How much does a Control Arm Assembly Replacement cost?

On average, the cost for a BMW 128i Control Arm Assembly Replacement is $144 with $49 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2008 BMW 128iL6-3.0LService typeControl Arm Assembly - Rear Lower Right ReplacementEstimate$365.21Shop/Dealer Price$443.02 - $629.18
2011 BMW 128iL6-3.0LService typeControl Arm Assembly - Front Upper Left ReplacementEstimate$322.21Shop/Dealer Price$396.55 - $580.11
2013 BMW 128iL6-3.0LService typeControl Arm Assembly - Rear Upper Left ReplacementEstimate$211.83Shop/Dealer Price$257.32 - $346.48
2010 BMW 128iL6-3.0LService typeControl Arm Assembly - Rear Upper Left ReplacementEstimate$341.21Shop/Dealer Price$419.00 - $605.16
2010 BMW 128iL6-3.0LService typeControl Arm Assembly - Front Upper Right ReplacementEstimate$322.21Shop/Dealer Price$396.57 - $580.16
2010 BMW 128iL6-3.0LService typeControl Arm Assembly - Front Lower Right ReplacementEstimate$341.21Shop/Dealer Price$419.05 - $605.24
2010 BMW 128iL6-3.0LService typeControl Arm Assembly - Front Upper Left ReplacementEstimate$327.21Shop/Dealer Price$401.31 - $584.69
2008 BMW 128iL6-3.0LService typeControl Arm Assembly - Front Upper Right ReplacementEstimate$327.21Shop/Dealer Price$401.96 - $585.83
Show example BMW 128i 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.

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Excellent Rating

(89)

Rating Summary
83
4
1
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83
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1

Peter

43 years of experience
1321 reviews
Peter
43 years of experience
BMW 128i L6-3.0L - Pre-purchase Car Inspection - Phoenix, Arizona
Very pleased with how thorough the inspection was. There were pictures and voice recordings in addition he was willing to speak over the phone.

Enrique

21 years of experience
244 reviews
Enrique
21 years of experience
BMW 128i L6-3.0L - Oil Change - Orlando, Florida
Excellent service, always very knowledgeable and willing to help you understand even if you don't understand about cars

Peter

43 years of experience
1321 reviews
Peter
43 years of experience
BMW 128i L6-3.0L - Brake System Flush - Phoenix, Arizona
Peter is very competent and friendly. I always ask for him specifically. Highly recommend him. He just completed a brake line flush on my BMW.

James

31 years of experience
675 reviews
James
31 years of experience
BMW 128i L6-3.0L - Pre-purchase Car Inspection - Santa Ana, California
James conducted a pre-purchase inspection on a BMW 1 series I was considering to buy. The inspection took place at the car dealer location and James arrived just before the requested time. James was very professional all along and conducted a detailed inspection of the car during over 45 minutes which also included a test drive. All the key points of the car were verified thoroughly using appropriate equipment when required. Smaller details were also inspected and tested rigorously prior to recording ion the inspection report. From the discussion we had, it's clear that James is exceptionally knowledgeable and has an extensive experience in auto maintenance. I am extremely satisfied with the service James provided and I would definitely recommend his services to my friends. It was money well spent and I ended up buying the car with confidence. Thank you James!

Excellent Rating

(89)

Rating Summary
83
4
1
0
1
83
4
1
0
1
Number of BMW 128i services completed
979+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
experts on our platform

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