Experiencing noises from your vehicle frequently is never comforting, so discovering noises on your Bmw Serie 3 F30 suspensions when you go over a speed bump can be stressing. This sign may be a sign of a insignificant problem as well as a warning of a much larger repair to come. Whatever the case, it is necessary to check the source and take the necessary actions to correct the problem, it is with this intention in mind that we wanted to write this document to support 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 3 F30
Check Bmw Serie 3 F30 suspension
If you notice a suspension noise when you pass a speed bump on your Bmw Serie 3 F30, and it is characterized by a “clack” or cracking, it is highly possible that your suspension block is the cause 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 In fact, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its role during small bumps that compress the suspensions. To verify if this is the problem that concerns you, take a dented road and focus on the noise coming from your front axle as you drive over holes. If it is indeed the cups, think of replacing them quickly or you may affect other parts and have to make more important maintenance.
Check the cardan shaft
If you are here because you have looked for for “Bmw Serie 3 F30 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 old and the dirt/dust builds up inside them their operation is degraded and it is possible to experience a sound when they are in torsion. To verify 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 conditions you should consider changing it or them. If you have the feeling that this noise is more like a a loud noise on Bmw Serie 3 F30, don’t hesitate to consult this content.
Check steering hinges/stabilizer bar
Finally, when you find out a suspension noise when your Bmw Serie 3 F30 passes over a speed bumps, it is possible that the hinges or the stabilizer bar are responsible. Exactly like the gimbals, the steering part is mobilized when you vary direction. If this is the case, the components that may have been destroyed by normal wear and tear or impacts (e. g. sidewalks). The steering hinges, the stabilizer bar hinges. can be the causes of your noises, to verify it, put it under the car and apply twists on each of its elements to verify that there is no special play on one of them, they are meant to endure you quite strongly over their entire travel. Keep in mind to take your vehicle to your technician or swap them if they are involved.
squeaky noise speed bump Bmw Serie 3 F30
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 Serie 3 F30, it is possible that it is the stabilizer bar itself that is concerned. In fact, abnormal/pronounced wear of the latter can cause abnormal friction which can generate this squeaking noise. Keep in mind to verify by going under your car the condition of the paint on your bar which will show if there is friction. Second possible explanation, it may be your stabilizer bar silentblocks that are dried out and cause noise, in which case disassemble them from the cradle and grease them, this should solve the problem.
Check engine silentblocks
Finally, last case that we can verify together, it is the engine silentblocks, actually, these silentblocks process as pads/shock absorbers between the engine and the cradle of the vehicle, a pronounced fatigue of these will make a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise comes up when you pass a speed bumps or any holes with your Bmw Serie 3 F30. To replace them go to your mechanic.
Other speed bump noise Bmw Serie 3 F30
If, despite all its assumptions, you still can’t uncover the origin of the noise your Bmw Serie 3 F30 makes when you pass a speed bump, we recommend you to read this content on a loud noise on Bmw Serie 3 F30 or to visit your technician in order to carry an in-depth check on your Bmw Serie 3 F30 and identify this problem.
