2010-2020 Bentley Mulsanne Strut Tower Brace: Diagnosing Front-End Noises and Flex
Learn to identify the subtle signs of a failing strut tower brace and how to distinguish them from more common suspension issues on your Mulsanne.
- This part is a simple structural bar, NOT the complex and expensive air suspension strut. Failures are rare.
- Symptoms include front-end popping/clunking noises and vague steering, but these are more often caused by control arm bushings or air suspension faults.
- No recalls or TSBs are associated with the Mulsanne's strut tower brace.
- When buying used, inspect meticulously for cracks or bends, as any damage renders the part unusable.
Symptoms of a Failing Strut Tower Brace
Failure of the strut tower brace on a Bentley Mulsanne is uncommon, as it is a simple, robust piece of metal with no moving parts. However, damage from an accident or failure at the mounting points can occur. Symptoms are often subtle and can be mistaken for other suspension issues.
- Popping or Creaking Noises: You might hear sharp popping, creaking, or clunking sounds from the front of the car, especially during low-speed turns like pulling into a driveway or parking spot. This can be caused by a cracked brace or loose mounting bolts allowing for unwanted movement.
- Reduced Steering Precision: The steering may feel less sharp or slightly vague. If the chassis is flexing more than it should due to a failed brace, it can alter the suspension geometry under load, affecting how the car responds to steering inputs.
- Audible Chassis Flex: In some cases, you may hear groaning or creaking from the body of the car when going over bumps or up steep inclines, indicating the chassis is flexing more than usual.
Pro Tip: Noises from the front suspension on a Bentley are more commonly caused by worn control arm bushings or issues with the complex air suspension system. 🎬 Watch: Bentley front suspension teardown and overhaul Before suspecting the strut tower brace, have these more common failure points inspected first.
🎬 Watch: How to find front suspension noisesBuying a Used Strut Tower Brace
Given the high cost of new OEM Bentley parts, a used strut tower brace is a practical and cost-effective choice, as it is a simple structural component. However, a thorough inspection is critical before purchasing.
- Inspect for Cracks: Carefully examine the entire brace, paying close attention to the welds and the areas around the mounting holes. Hairline cracks can form from stress over time or due to an impact. A cracked brace is useless and cannot be safely repaired.
- Check for Bends or Deformation: Lay the brace on a flat surface to ensure it is not bent or twisted. Any deformation indicates it has been compromised, likely in a collision, and will not fit correctly or provide the necessary structural support.
- Examine Mounting Points: The mounting holes should be round and free of significant wear or elongation. Check for corrosion around these points, as it can weaken the connection to the vehicle's strut towers.
- Verify Part Number: While difficult to find, ensure the part you are buying is correct for the 2010-2020 Mulsanne. An incorrect brace will not align with the mounting points in the engine bay. When in doubt, consult a dealer with the seller's photos to verify.
Known Issues, TSBs, and Recalls
As of mid-2024, there are no specific recalls, Technical Service Bulletins (TSBs), or common known issues from Bentley related to the strut tower brace on the 2010-2020 Mulsanne. Recalls issued for this vehicle concern the rear seat belt anchors and rearview camera software.
Replacement and Installation
Replacing the strut tower brace is a straightforward task suitable for a DIY mechanic with basic tools.
- Difficulty: 1 out of 5
- Estimated Time: 0.5 hours
The process generally involves removing the nuts that secure each end of the brace to the strut tower studs in the engine bay, lifting the old brace off, placing the new one, and reinstalling the nuts. It is crucial to tighten the nuts to the manufacturer's specified torque to ensure a secure connection. No special calibration is required.
🎬 See a simple strut tower brace installationWarning: Do not confuse this simple brace with the entire air strut assembly. Replacing the air struts is a much more complex and expensive job that involves the vehicle's air suspension system.
Cost Comparison
Pricing for a Bentley Mulsanne strut tower brace can vary significantly between new and used options.
| Part Source | Estimated Cost |
|---|---|
| New OEM | Contact Dealer (Est. $500+) |
| New Aftermarket | Not Available |
| Used OEM | $250 - $350 |
| Shop Labor | $100 - $200 |
Frequently Asked Questions (FAQ)
Can I drive my Mulsanne with a broken strut tower brace?
Yes, but it is not recommended for extended periods. The car will be drivable, but you may notice compromised handling, reduced steering feel, and increased noise from the front end. The primary risk is a less stable vehicle, especially during cornering or emergency maneuvers.
Is a strut tower brace the same as a strut or shock absorber?
No. The strut tower brace is a simple, stationary bar that adds rigidity to the car's body. The struts (or shock absorbers) are critical suspension components that dampen road impacts and control wheel movement. On the Mulsanne, these are complex air strut assemblies.
Why can't I find any aftermarket strut tower braces for my Mulsanne?
The Bentley Mulsanne is a low-production, high-luxury vehicle. The market is too small for most aftermarket companies to justify the cost of developing and manufacturing parts like a strut tower brace. The focus for aftermarket parts on this car is typically on more common replacement items like air suspension components or brakes.
How can I be sure the noise I'm hearing is from the strut tower brace?
Open the hood and perform a visual inspection. Check that the nuts on both ends of the brace are tight. Look for any visible cracks in the brace itself or in the paint/metal of the strut towers around the mounting points. Have a helper turn the steering wheel while you listen for noises directly from the brace. If the brace is secure and undamaged, the noise is almost certainly coming from another component like a control arm bushing or ball joint.
Helpful Videos
Technical Specifications
OEM Part Numbers: 3Y0805635
Material: Typically aluminum or steel. Function: Connects front strut towers to increase chassis rigidity.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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