Listening noises from your automobile regularly is never comforting, so listening noises on your Bmw Serie 3 suspensions when you pass a speed bump can be stressing. This indicator 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 essential 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 article to help you see more clearly. We will first see the possible explanations for a crack when the speed bump passes, then, 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 Serie 3
Check Bmw Serie 3 suspension
If you encounter a suspension noise when you pass a speed bump on your Bmw Serie 3, 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 In fact, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its function during small bumps that compress the suspensions. To check if this is the problem 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 searched for “Bmw Serie 3 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 action is deteriorated and it is possible to experience a noise when they are in torsion. To check 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 swapping it or them. If you have the feeling that this noise is more like a a loud noise on Bmw Serie 3, don’t hesitate to visit this article.
Check steering hinges/stabilizer bar
Finally, when you know a suspension noise when your Bmw Serie 3 passes over a speed bumps, it is plausible that the hinges or the stabilizer bar are responsible. Simply like the gimbals, the steering part is mobilized when you modify direction. If this is the case, the components that may have been broken 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 check it, position it under the automobile and apply twists on each of its components to check that there is no particular play on one of them, they are expected to resist you quite strongly over their entire travel. Keep in mind to take your Bmw Serie 3 to your mechanic or change them if they are involved.
squeaky noise speed bump Bmw Serie 3
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 3, it is possible that it is the stabilizer bar itself that is involved. In fact, abnormal/pronounced wear of the latter can cause unusual friction which can provoke this squeaking noise. Bear in mind to check by going under your automobile the condition of the paint on your bar which will indicate if there is friction. Second possible point, it may be your stabilizer bar silentblocks that are dried out and cause noise, in which case remove them from the cradle and grease them, this should resolve the problem.
Check engine silentblocks
Finally, last possibility that we can check together, it is the engine silentblocks, actually, these silentblocks function as pads/shock absorbers between the engine and the cradle of the automobile, a pronounced fatigue of these will create a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise appears when you pass a speed bumps or any holes with your Bmw Serie 3. To change them go to your auto technician.
Other speed bump noise Bmw Serie 3
If, despite all its assumptions, you still can’t locate the origin of the noise your Bmw Serie 3 makes when you pass a speed bump, we suggest you to consult this article on a loud noise on Bmw Serie 3 or to visit your mechanic in order to carry an in-depth check on your Bmw Serie 3 and find this problem.
