Replacing Suspension Strut Bellows on Your 2011-2016 Volvo S60
This small, inexpensive part protects your expensive struts from premature failure.
- A torn strut bellow will eventually cause the much more expensive strut to fail.
- Replacement is a labor-intensive job that requires a dangerous spring compressor; professional installation is strongly recommended.
- High-quality aftermarket brands like KYB offer excellent performance and value for this part.
- Always replace bellows in pairs and get a wheel alignment after the repair.
Is a Torn Strut Bellow a Problem?
Yes, a torn or missing strut bellow is a serious issue, even if you don't notice it right away. The bellow itself doesn't affect how your car drives. However, its failure exposes the strut's hydraulic piston rod to the elements. Road grit and moisture will destroy the strut's seals, causing the hydraulic fluid to leak out. Once the fluid is gone, the strut can no longer dampen impacts, leading to a bouncy, uncontrolled ride and more expensive repairs.
Symptoms of a Bad Strut Bellow
The most obvious symptom is the physical condition of the part. You can often see a torn, cracked, or completely missing bellow by looking into the wheel well. Once the bellow has failed and the strut itself begins to wear out, you may notice secondary symptoms:
- Bouncy or Unstable Ride: The car may bounce excessively after hitting bumps.
- Clunking or Knocking Noises: Worn struts can make noise when going over bumps.
- Nose-Diving When Braking: The front of the car may dip excessively when you apply the brakes.
- Uneven Tire Wear: Failed struts can lead to cupping on your tires.
Choosing the Right Aftermarket Bellows
For a part like a strut bellow, aftermarket options provide excellent value. The original OEM parts on your S60 are made of materials that degrade over time. A new aftermarket part is always better than a damaged original. Here are the brands available:
- KYB: KYB is a well-respected, global manufacturer of suspension components, often supplying parts to automakers directly. Their products are known for meeting or exceeding OEM quality and will provide a reliable, long-lasting repair. A KYB bellow is a premium aftermarket choice.
- Skyward: Skyward is a standard aftermarket brand that offers a cost-effective solution. While it may not have the same name recognition as KYB, it provides a functional replacement that will protect your struts from damage, which is the most important job of this part.
Cost of Replacing Strut Bellows (2011-2016 Volvo S60)
| Part | Price Range |
|---|---|
| New Aftermarket Bellows (Per side) | $19.97 - $30.09 |
| New OEM Bellows (Per side) | $40 - $60 |
| Shop Labor (Per side) | $180 - $270 |
DIY Warning: Spring Compressors are Dangerous
Replacing the strut bellow requires taking apart the entire strut assembly, which includes a large coil spring. This spring is under extreme compression. A special tool called a spring compressor is needed to do this safely. If used incorrectly, the spring can release with violent force, causing serious injury or death. This job is best left to experienced mechanics with the proper equipment.
Frequently Asked Questions
Do I need to replace bellows in pairs?
Yes, it is highly recommended. The bellows are made of the same material and have been exposed to the same conditions. If one has failed, the other is likely not far behind. Since the labor is the most expensive part of the job, it is more cost-effective to replace both at the same time.
What happens if I don't replace a torn strut bellow?
A torn bellow will allow dirt and water to contaminate the strut rod and seal. This will cause the strut to fail. You will then need to replace the entire strut, which is significantly more expensive than just the bellow.
Do I need a wheel alignment after replacing the bellows?
Yes. Because the front struts are removed and reinstalled during this repair, a front-end wheel alignment is necessary to ensure proper handling and prevent premature tire wear.
Are there any recalls for my S60's suspension?
No, searches of NHTSA data did not find any recalls or technical service bulletins (TSBs) specifically related to the suspension strut bellows for the 2011-2016 Volvo S60. Failures are typically due to age and normal wear.
Technical Specifications
OEM Part Numbers: 31340139
This part is a flexible boot designed to fit over the front strut assembly. It is typically made from rubber or a thermoplastic elastomer. The KYB model number for this application is SB101.
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.
- Volvo S60: