2005-2007 Mercury Montego Suspension Strut Bellows: A Replacement Guide
Learn why this small, inexpensive boot is critical for protecting your Montego's expensive struts from premature failure.
- The strut bellow's only job is to protect the strut; a tear will lead to expensive strut failure.
- Replacing only the bellow is difficult and requires special tools; it's often more practical to replace the entire strut assembly if your struts are old.
- KYB is a trusted aftermarket brand for suspension components like bellows.
- A wheel alignment is always required after removing and reinstalling the front struts.
Is Your Strut Bellow Failing?
A strut bellow doesn't have complex failure symptoms. The main sign of a problem is visible damage. Get in the habit of looking at your suspension components when you have the wheels off for a tire rotation.
- Visible Cracks or Tears: The most common symptom is seeing that the flexible boot is cracked, torn, or has pieces missing. Age and exposure to the elements cause the rubber or plastic to become brittle.
- Loose Fit: The bellow should be securely attached at the top and bottom. If it has come loose, it can no longer do its job of protecting the strut shaft.
A Bad Bellow Leads to a Bad Strut
A torn bellow itself won't change how your Montego drives. However, it's a serious warning sign. The damage it allows will cause the strut to fail. Symptoms of a failed strut include:
- A bouncy, uncontrolled ride over bumps.
- The front end “diving” forward when you brake hard.
- Clunking or banging noises from the suspension.
- Uneven, "cupped" tire wear.
- Visible fluid leaking down the side of the strut.
If you see these symptoms, the damage is already done, and you'll need to replace the entire strut assembly, not just the bellow.
Choosing the Right Aftermarket Bellows
For the 2005-2007 Mercury Montego, the aftermarket offers good quality replacement bellows. Since the original OEM parts are aging, a new aftermarket part is often the best choice.
- KYB: KYB is a highly respected brand in the suspension world, often manufacturing parts for automakers directly. Their strut boots are known to be made from high-quality, durable materials that meet or exceed original specifications. For a simple but critical part like a bellow, KYB is a reliable choice that ensures proper protection for the strut.
Pro Tip: Replace the Bellow or the Whole Strut?
Replacing only the strut bellow is labor-intensive. The entire strut assembly must be removed from the car, and a special spring compressor tool is needed to take it apart. This process is dangerous if not done correctly. Because of the high labor cost, if your Montego has over 80,000 miles or the struts are original, it is almost always more cost-effective to replace the entire strut assembly. A new assembly includes the strut, spring, mount, and bellow all in one unit, which significantly cuts down on labor time and renews the entire component.
Cost Comparison for Suspension Strut Bellows
| Part Type | Estimated Cost (Part Only) |
|---|---|
| New Aftermarket Bellows (KYB) | $30.09 |
| New OEM Bellows | $30 - $50 |
| Complete Aftermarket Strut Assembly (with bellow) | $100 - $250 per side |
Frequently Asked Questions (FAQ)
What happens if I don't replace a torn strut bellow?
If you ignore a torn bellow, dirt and moisture will destroy the strut's oil seal. This will cause the strut to leak and fail, resulting in a bouncy ride, poor handling, and the need for a much more expensive repair to replace the entire strut assembly.
Should I replace strut bellows in pairs?
Yes. Like most suspension components, it's best to replace them in pairs (both front or both rear). If one bellow has failed due to age, the other side is likely not far behind. This also ensures consistent protection for both of your struts.
Is a wheel alignment needed after replacing just the bellows?
Yes. Because the entire strut assembly must be removed and reinstalled to replace the bellow, a wheel alignment is mandatory. Skipping this step will lead to poor handling and rapid tire wear.
Are there any recalls for the Mercury Montego suspension?
No, there are no specific recalls for the struts or bellows on the 2005-2007 Mercury Montego. A Technical Service Bulletin (TSB) was issued for the related Ford Five Hundred for noise from the front upper strut mount, but not for the bellow itself.
Technical Specifications
The key specification is ensuring the bellow is for the correct vehicle (2005-2007 Mercury Montego) and position (front or rear). Be aware that struts and related components can differ between Front-Wheel Drive (FWD) and All-Wheel Drive (AWD) models.
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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