Experiencing noises from your auto frequently is never comforting, so discovering noises on your BMW 2 Series suspensions when you go over a speed bump can be worrying. This indicator 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 important to check the cause and take the necessary actions to resolve the issue, it is with this aim in mind that we wanted to write this article to support you see more clearly. We will first see the possible causes for a crack when the speed bump passes, after that, 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 2 Series
Check BMW 2 Series suspension
If you notice a suspension noise when you pass a speed bump on your BMW 2 Series, and it is categorized by a “clack” or cracking, it is highly plausible that your suspension block is the cause of it. In fact, it may be the suspension cups, which, when they are old, 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 issue that concerns you, take a dented road and listen to the noise coming from your front axle as you go over holes. If it is indeed the cups, think of changing them fairly quickly or you may ruin other parts and have to make more important vehicle repairs.
Check the cardan shaft
If you are here because you have looked for for “BMW 2 Series 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 In fact, when the cardan bellows get out of date and the dirt/dust builds up inside them their working is degraded and it is possible to experience a noise when they are in torsion.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 cases you should consider swapping it or them. If you have the feeling that this noise is more like a a loud noise on BMW 2 Series, don’t hesitate to read this article.
Check steering hinges/stabilizer bar
Finally, when you experience a suspension noise when your BMW 2 Series passes over a speed bumps, it is plausible that the hinges or the stabilizer bar are responsible. Exactly like the gimbals, the steering part is mobilized when you adjust direction. If this is the case, the parts that may have been destroyed 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 verify it, place it under the automobile and apply twists on each of its components to verify that there is no special play on one of them, they are supposed to endure you quite strongly over their entire travel. Please remember to take your BMW 2 Series to your auto technician or change them if they are involved.
squeaky noise speed bump BMW 2 Series
Check the stabilizer bar
If, on the other hand, you have a noise that is more like a squeak when you go over a speed bump with your BMW 2 Series, it is plausible that it is the stabilizer bar itself that is involved. In fact, abnormal/pronounced wear of the latter can cause unusual friction which can cause this squeaking noise. Keep in mind to verify by going under your automobile the condition of the paint on your bar which will indicate if there is friction. Second plausible explanation, it may be your stabilizer bar silentblocks that are dry and provoke noise, in which case disassemble them from the cradle and grease them, this should solve the issue.
Check engine silentblocks
Finally, last point that we can verify together, it is the engine silentblocks, actually, these silentblocks operate as pads/shock absorbers between the engine and the cradle of the auto, a obvious weakness of these will make 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 2 Series. To change them go to your mechanic.
Other speed bump noise BMW 2 Series
If, even though all its assumptions, you still can’t find the source of the noise your BMW 2 Series makes when you pass a speed bump, we recommend you to read this article on a loud noise on BMW 2 Series or to visit your auto technician in order to carry an in-depth check on your BMW 2 Series and determine this issue.
