The engine mount is an essential component of the vehicle, responsible for absorbing engine vibrations and keeping it firmly anchored to the chassis. The frequent failure of this component can be attributed to various factors:
- Partial replacement of mounts: a common mistake
One of the main reasons engine mounts break frequently is the partial replacement of components. When a mount becomes damaged and isn’t immediately replaced, the remaining mounts must bear additional load to compensate for the loss. This overload accelerates the wear of the remaining mounts, causing them to fail within a relatively short time. Even if only one of the mounts appears damaged, the others may already be compromised and close to breaking due to the extra stress. For this reason, it is advisable to replace all mounts simultaneously, especially if the damaged mount was not promptly replaced. This practice ensures optimal system balance and prolongs the overall lifespan of the mounts, avoiding further breakages in the short term. - Natural wear and material fatigue
Over time, engine mounts, primarily made of rubber and/or elastomeric materials, deteriorate due to continuous stress during driving. Engine vibrations, accelerations, and decelerations lead to a natural degradation of the material. External factors, such as extreme temperatures, engine oil, ozone, or other chemicals, can accelerate this process, reducing the rubber’s ability to absorb vibrations properly, leading to mount failure. - Aggressive driving and difficult road conditions
Aggressive driving, characterized by sudden accelerations and decelerations, subjects engine mounts to greater stress than intended. Similarly, harsh road conditions, such as potholes or uneven roads, amplify stress on the mounts, accelerating their wear and making them more vulnerable to premature failure. - Alignment and installation issues
Poor engine alignment or improper mount installation can cause uneven stress, leading to premature mount failure. Additionally, using low-quality mounts that do not meet OEM (Original Equipment Manufacturer) standards can significantly reduce the component’s lifespan. It is crucial to use high-quality products and ensure proper installation to prevent future problems. - Upgraded or modified engines
If the vehicle’s engine has been upgraded or modified to increase power, the original mounts may not be able to handle the increased torque and vibrations, leading to premature failure. In such cases, it is recommended to use reinforced mounts designed to handle the new stresses. - Quality of the replaced mount: a crucial aspect
In recent years, the market has been flooded with cheap products, often from unscrupulous manufacturers, that do not meet the required quality standards. These mounts, although aesthetically similar to the originals, lack the technology and materials necessary to ensure the same level of comfort and safety. Engine mount technology has advanced significantly, with many latest-generation models featuring advanced characteristics such as hydraulic damping and, in some cases, electric sensors that regulate the damping function according to driving conditions. To avoid performance issues and ensure maximum reliability, it is essential to choose high-quality mounts, preferably produced by companies known for their commitment to quality and driver safety. - Design flaws in specific car models
Some car models, which until a few years ago represented a significant part of the European vehicle fleet, had design flaws in the engine suspension system and related mounts. Unfortunately, even some newer vehicles continue to suffer from the same issue, where despite using original engine mounts, they tend to fail prematurely, often within just 3-6 months of installation. Despite various attempts at modification and improvement, the structural defect of the entire system has made it difficult to extend the lifespan of these mounts, and many owners of these vehicles have had to deal with frequent replacements without finding a definitive solution to this day.
Conclusion
To ensure the durability and effectiveness of the engine mounting system, it is essential not only to replace all mounts simultaneously but also to select high-quality components and rely on experienced installers. This approach not only prevents future failures but also ensures that the engine remains stable, maintaining the vehicle’s comfort and safety at the highest levels.