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Infiniti Q45 Struts

Identifying Problems with Infiniti Q45 Struts

Driving a luxury car such as the Infiniti Q45 will not offer much comfort if the suspension system is not in its optimal condition. The struts are one of the most crucial components of any car's suspension system, because they maintain a constant vehicle height, keep a balanced handling, absorb sudden shocks, etc. Driving with failing struts is a huge safety hazard that can result in dangerous accidents. Here is a list of signs indicating that there is something wrong with your Infiniti Q45 struts. This will help you identify the problems early on so you will be able to prevent any untoward incident.

Harsh jolts and clanking noises

Observe how your car performs when driving over speed bumps at around 5 mph. If it delivers harsh jolts and clanking noises, the struts may have lost their dampening effects. This causes the car to bottom out, allowing enough collapse that takes the frame to make metal-to-metal contacts. To confirm this problem without the help of a professional auto mechanic, you can use a tape measure to determine the distances between the wheel wells and the ground. Make sure all tires have the same pressure before starting this test. If the side to side measurements on the front and the rear have a deviation of more than 1/2 inch, the struts have lost their ride height. This might be due to weakened springs.

Excessive bouncing

Park your Q45 on flat ground and execute a "bounce test" by pushing down one corner at a time. Check if the suspension compresses firmly, rises back up immediately, and then stops. If this is your car's case, the struts are still in good shape. But if the corner is quite easy to push down, and it bounces back up a couple of times before it stops, then you need to get new ones.

Tilts during turns

Find out how your car is when turning a corner. If there is much rollover or tilting to one side, the struts are shot and you will need replacements. This may be caused by leaks in shock body brought about by damaged seals. Check the strut assembly for any traces of oil and grime buildup.

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  • Some Tips to Avoid Premature Failure of Infiniti Q45 Struts 04 March 2014

    Your Infiniti Q45 is built to give you a comfortable driving experience, and the struts in the suspension system have a lot to do with that. Infiniti Q45 struts are integral suspension components each composed of spring, shock absorber, and upper control arm. If one of its components fails, everything else fails with it-even your car's handling performance. There are really no fixed intervals on when to replace them, but it is best to do it after 50,000 miles or so. To get the best mileage out of them, here are a few tips to keep in mind.

    • Conduct regular overall maintenance.
    • Struts need to be checked at least once a year. Such an annual maintenance procedure will prevent all causes of premature failure such as loose joints and mounts. Alternatively, you can also have the struts checked as frequently as you get the wheels realigned. Although the symptoms of struts that have gone bad are quite obvious to point out, it is not so easy to identify a slowly failing strut. That's why an annual maintenance checkup is very important not just for the struts, but also for all other parts as well.
    • Avoid driving through rough roads.
    • The durability of Infiniti Q45 struts also depends highly on the type of terrain you usually drive on. City driving prolongs the life of shocks and struts a lot because of the smooth roads. But driving through rocky roads very often takes the struts and even the whole suspension system to die down sooner. Plus, the Q45 isn't really built for such road trips.
    • Tighten loose mounts and joints.
    • No matter how securely tight you made the strut mounts when you installed the struts, they still have the tendency to slacken. A loose joint and mount will put a lot more stress on the struts and cause them to wear out very soon. Tighten the strut 'tops' by using a pair of vice grips to grab the shaft of the insert. This will keep the rod from spinning while you tighten the nut. And if you are worried about clamp marks on the strut body, you can use some tape on the vice grip jaws to prevent any damage on the seals.