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BMW 740iL 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 740iL Control Arm Assembly Replacement is $206 with $66 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1997 BMW 740iLV8-4.4LService typeControl Arm Assembly - Front Upper Right ReplacementEstimate$526.96Shop/Dealer Price$626.25 - $909.95
1996 BMW 740iLV8-4.4LService typeControl Arm Assembly - Front Upper Left ReplacementEstimate$517.95Shop/Dealer Price$614.15 - $895.53
1996 BMW 740iLV8-4.4LService typeControl Arm Assembly - Rear Lower Right ReplacementEstimate$1978.05Shop/Dealer Price$2435.99 - $3801.77
1996 BMW 740iLV8-4.4LService typeControl Arm Assembly - Rear Upper Right ReplacementEstimate$480.55Shop/Dealer Price$564.11 - $806.77
2000 BMW 740iLV8-4.4LService typeControl Arm Assembly - Rear Upper Right ReplacementEstimate$343.27Shop/Dealer Price$395.35 - $537.17
2001 BMW 740iLV8-4.4LService typeControl Arm Assembly - Front Lower Left ReplacementEstimate$432.55Shop/Dealer Price$504.39 - $711.24
1994 BMW 740iLV8-4.0LService typeControl Arm Assembly - Front Upper Right ReplacementEstimate$532.55Shop/Dealer Price$629.15 - $910.82
1998 BMW 740iLV8-4.4LService typeControl Arm Assembly - Front Lower Left ReplacementEstimate$432.55Shop/Dealer Price$504.11 - $710.77
Show example BMW 740iL 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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Number of BMW 740iL services completed
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services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
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Real customer reviews from BMW owners like you.

Excellent Rating

(43)
Rating Summary
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3
0
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3
0
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0

Edmar

23 years of experience
246 reviews
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Edmar
23 years of experience
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by Joshua
BMW 740iL V8-4.4L - Air Pump - Dallas, Texas
Edmar is a very awesome mechanic, he is very knowledgeable and courteous. He worked on my BMW and got it done in a timely fashion and smiled the entire. I will definitely recommend him for any of your car/truck needs. Keep up the great work Edmar!

Peter

44 years of experience
1397 reviews
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Peter
44 years of experience
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by Adrian
BMW 740iL V8-4.4L - Check Engine Light is on - Phoenix, Arizona
Peter was early as indicated on most of his other reviews, and professional. Took the time to explain everything out as he worked, and was able to diagnose the main issue, although I have to schedule that repair for another day. We got plenty of other work done, and in shorter time than was originally booked. He was also able to discuss upcoming work needed for maintaining a healthy car. I will be booking him again for the other issue as soon as the quote comes back. My mail carrier saw what was happening, and asked for a business card, already beginning the referrals!

Jeff

34 years of experience
441 reviews
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Jeff
34 years of experience
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by Umesh
BMW 740iL V8-4.4L - Oil Change - Folsom, California
On-time and friendly service!

David

14 years of experience
463 reviews
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David
14 years of experience
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by Nigel
BMW 740iL V8-4.4L - Steering wheel is hard to turn - Marietta, Georgia
Very knowledgeable and personable. Gave me a clear understanding of what was wrong, how it happened and what to do to fix it and prevent it from happening in the future. I rarely say this about a mechanic... but he gained my trust. This is from a man who felt that a honest mechanic was an oxymoron. Thank you David.

Excellent Rating

(43)
Rating Summary
40
3
0
0
0
40
3
0
0
0
Number of BMW 740iL services completed
473+
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

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