Finding out noises from your vehicle regularly is never reassuring, so listening noises on your BMW X4 suspensions when you go over a speed bump can be stressing. This warning sign may be a sign of a insignificant trouble as well as a warning of a much larger repair to come. Whatever the case, it is important to check the origin and take the necessary actions to correct the trouble, it is with this objective in mind that we wanted to write this content to help you see more clearly. We will first see the possible reasons for a crack when the speed bump passes, after that, what can be the reason of a squeaking noise when a speed bump is being passed and finally what to do if you have another noise when a speed bump is passed.
Suspension cracking noise BMW X4
Check BMW X4 suspension
If you notice a suspension noise when you pass a speed bump on your BMW X4, and it is categorized by a “clack” or cracking, it is highly plausible that your suspension block is the origin of it. Indeed, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its job during small bumps that compress the suspensions. To examine if this is the trouble that concerns you, take a dented road and pay attention to the noise coming from your front axle as you go over holes. If it is indeed the cups, think of swapping them fairly quickly or you may ruin other parts and have to make more important auto repairs.
Check the cardan shaft
If you are here because you have researched for “BMW X4 suspension noise” and the suspension is not the cause of your problem, it may be that the cardan shaft is responsible. Indeed, when the cardan bellows get out of date and the dirt/dust builds up inside them their operation is degraded and it is possible to experience a noise when they are in torsion. To examine this, you can try both types of torsion, first vertical with suspension compressions on the speed bump passages, and horizontal when you are going to make a turn at low speed. If it cracks in these two situations you should consider swapping it or them. If you have the feeling that this noise is more like a a loud noise on BMW X4, don’t hesitate to visit this content.
Check steering hinges/stabilizer bar
Finally, when you detect a suspension noise when your BMW X4 passes over a speed bumps, it is imaginable that the hinges or the stabilizer bar are responsible. Just like the gimbals, the steering part is mobilized when you change direction. If this is the situation, the components that may have been affected by usual wear and tear or impacts (e. g. sidewalks). The steering hinges, the stabilizer bar hinges. can be the origins of your noises, to examine it, put it under the vehicle and apply twists on each of its elements to examine that there is no particular play on one of them, they are supposed to endure you quite strongly over their entire travel. Keep in mind to take your BMW X4 to your auto technician or change them if they are involved.
squeaky noise speed bump BMW X4
Check the stabilizer bar
If, however, you have a noise that is more like a squeak when you go over a speed bump with your BMW X4, it is plausible that it is the stabilizer bar itself that is involved. Indeed, abnormal/pronounced wear of the latter can cause uncommon friction which can provoke this squeaking noise. Keep in mind to examine by passing under your vehicle the condition of the paint on your bar which will tell us if there is friction. Second plausible point, it may be your stabilizer bar silentblocks that are dry and create noise, in which case remove them from the cradle and grease them, this should fix the trouble.
Check engine silentblocks
Finally, last possibility that we can examine together, it is the engine silentblocks, in fact, these silentblocks process as pads/shock absorbers between the engine and the cradle of the vehicle, a evident weakness of these will create a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise comes up when you pass a speed bumps or any holes with your BMW X4. To change them go to your auto mechanic.
Other speed bump noise BMW X4
If, despite all its assumptions, you still can’t uncover the source of the noise your BMW X4 makes when you pass a speed bump, we encourage you to refer to this article on a loud noise on BMW X4 or to visit your auto technician in order to carry an in-depth check on your BMW X4 and find this trouble.
