Discovering noises from your automobile frequently is never comforting, so listening noises on your Bmw Serie 7 suspensions when you pass a speed bump can be worrying. This symptom may be a sign of a minor issue as well as a warning of a much larger repair to come. In any case, it is necessary to check the origin and take the necessary actions to eliminate the issue, it is with this objective in mind that we wanted to write this document to help you see more clearly. We will first see the possible reasons for a crack when the speed bump passes, then, what can be the cause 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 Serie 7
Check Bmw Serie 7 suspension
If you notice a suspension noise when you pass a speed bump on your Bmw Serie 7, and it is characterized by a “clack” or cracking, it is highly possible that your suspension block is the origin of it. In fact, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its function during small bumps that compress the suspensions. To examine if this is the issue that concerns you, take a dented road and pay attention to the noise coming from your front axle as you pass over holes. If it is indeed the cups, think of swapping them quickly or you may damage other parts and have to make more important maintenance.
Check the cardan shaft
If you are here because you have searched for “Bmw Serie 7 suspension noise” and the suspension is not the cause of your problem, it may be that the cardan shaft is responsible. In fact, when the cardan bellows get outdated and the dirt/dust builds up inside them their action is degraded and it is possible to experience a sound when they are in torsion.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 replacing it or them. If you have the feeling that this noise is more like a a loud noise on Bmw Serie 7, don’t hesitate to refer to this document.
Check steering hinges/stabilizer bar
Finally, when you find out a suspension noise when your Bmw Serie 7 passes over a speed bumps, it is possible 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 case, the components that may have been damaged 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 components to examine that there is no particular play on one of them, they are supposed to resist you quite strongly over their entire travel. Keep in mind to take your vehicle to your mechanic or swap them if they are involved.
squeaky noise speed bump Bmw Serie 7
Check the stabilizer bar
If, alternatively, you have a noise that is more like a squeak when you pass a speed bump with your Bmw Serie 7, it is possible that it is the stabilizer bar itself that is involved. In fact, abnormal/pronounced wear of the latter can cause uncommon friction which can cause this squeaking noise. Please remember to examine by going under your vehicle the condition of the paint on your bar which will indicate if there is friction. Second possible explanation, it may be your stabilizer bar silentblocks that are dried out and create noise, in which case take them out from the cradle and grease them, this should eliminate the issue.
Check engine silentblocks
Finally, last possibility that we can examine together, it is the engine silentblocks, actually, these silentblocks operate as pads/shock absorbers between the engine and the cradle of the automobile, a evident fatigue of these will generate a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise happens when you pass a speed bumps or any holes with your Bmw Serie 7. To replace them go to your auto technician.
Other speed bump noise Bmw Serie 7
If, even though all its assumptions, you still can’t find the origin of the noise your Bmw Serie 7 makes when you pass a speed bump, we encourage you to read this content on a loud noise on Bmw Serie 7 or to visit your mechanic in order to carry an in-depth check on your Bmw Serie 7 and identify this issue.
