The strut mount can break for various reasons, and pinpointing the exact cause is not always straightforward. First and foremost, it’s important to remember that the strut mount is just one of many components in the suspension system, all working together to ensure the vehicle’s comfort and stability. Therefore, a strut mount failure could result from issues with other connected components, such as the strut itself, the strut bearing, or the bump stop.
- Incorrect installation of the strut or connected components: An incorrect installation of the strut can cause excessive stress on the mount, leading to its failure. Many automakers provide specific installation instructions for suspension components on their official platforms, as proper installation can vary not only between different models but also among different manufacturers. An improperly mounted bearing or an unswapped bump stop can contribute to abnormal and premature wear of the mount.
- Low-quality struts and non-oe compliant parts: Another critical factor is the use of low-quality struts. In recent years, there has been a surge of inexpensive struts imported from Asian countries. Not all of these products meet OE (Original Equipment) specifications, which are the standards required by the vehicle manufacturer to ensure optimal performance and maximum safety. A non-compliant strut may have different stiffness and response characteristics than a high-quality OE component, applying unexpected pressures on the mounts and causing premature failure.
- Other stress factors on the mount: Failure to replace the bump stop, which is designed to limit the strut’s travel and absorb some of the stress, can also overload the mount. Additionally, a worn or damaged strut bearing will prevent proper movement of the strut, causing further stress.
- Natural wear and exposure to the elements: Strut mounts, primarily made of rubber and metal, are subject to natural wear due to continuous stress during driving, especially on rough roads. The rubber tends to harden and crack over time, especially when exposed to harsh weather conditions like rain, snow, and road salt. Metal components, on the other hand, can rust, compromising the mount’s structure.
- Driving style and road conditions: Another common cause of strut mount failure is related to driving style, particularly when encountering rough roads, potholes, or speed bumps at high speeds. Many drivers, believing that the vehicle’s suspension system can fully absorb these impacts, fail to avoid road irregularities. This behavior is dangerous because, although the impact may seem cushioned by the quality of the entire suspension system, the stress on the components, especially the strut mounts, is significant. Continuously facing these road conditions without reducing speed subjects the mounts to excessive loads, accelerating rubber wear and deforming the metal. Over time, this constant stress can lead to micro-failures and, eventually, complete mount breakage. It’s important to note that a continuously stressed suspension system can compromise road holding and vehicle stability, jeopardizing safety. Therefore, it’s always essential to adopt a more careful and mindful driving style, slowing down when encountering potholes, speed bumps, or uneven roads, both to preserve the integrity of the strut mounts and to ensure the overall longevity of the suspension system.
In summary, to prevent strut mount failure, it’s crucial to ensure that all suspension components are installed correctly, using high-quality struts and parts that meet OE specifications. Additionally, it’s advisable to rely on experienced and specialized installers who can identify the most suitable product for your vehicle, avoiding the use of inexpensive components of questionable origin that could compromise safety and driving comfort.