Discovering noises from your vehicle frequently is never reassuring, so listening noises on your Mercedes Classe B 3 suspensions when you go over a speed bump can be stressing. This indicator may be a sign of a minor problem as well as a warning of a much larger repair to come. Whatever the case, it is important to check the source and take the necessary actions to correct the problem, it is with this objective in mind that we wanted to write this article 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 Mercedes Classe B 3
Check Mercedes Classe B 3 suspension
If you experience a suspension noise when you pass a speed bump on your Mercedes Classe B 3, 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 check if this is the problem that worries 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 changing them quickly or you may damage other parts and have to make more important vehicle repairs.
Check the cardan shaft
If you are here because you have looked for for “Mercedes Classe B 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 In fact, when the cardan bellows get outdated and the dirt/dust builds up inside them their functions is degraded and it is possible to experience a noise when they are in torsion.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 cases you should consider replacing it or them. If you have the feeling that this noise is more like a a loud noise on Mercedes Classe B 3, don’t hesitate to consult this content.
Check steering hinges/stabilizer bar
Finally, when you recognise a suspension noise when your Mercedes Classe B 3 passes over a speed bumps, it is possible 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 your situation, the parts 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 origins of your noises, to check it, place it under the car and apply twists on each of its elements to check 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 Mercedes Classe B 3 to your mechanic or replace them if they are involved.
squeaky noise speed bump Mercedes Classe B 3
Check the stabilizer bar
If, alternatively, you have a noise that is more like a squeak when you go over a speed bump with your Mercedes Classe B 3, it is plausible that it is the stabilizer bar itself that is involved. In fact, abnormal/pronounced wear of the latter can cause abnormal friction which can create this squeaking noise. Please remember to check by passing under your car the condition of the paint on your bar which will tell us if there is friction. Second plausible explanation, it may be your stabilizer bar silentblocks that are dried out and create noise, in which case remove them from the cradle and grease them, this should eliminate the problem.
Check engine silentblocks
Finally, last possibility that we can check 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 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 happens when you pass a speed bumps or any holes with your Mercedes Classe B 3. To change them go to your mechanic.
Other speed bump noise Mercedes Classe B 3
If, even though all its assumptions, you still can’t uncover the origin of the noise your Mercedes Classe B 3 makes when you pass a speed bump, we encourage you to consult this article on a loud noise on Mercedes Classe B 3 or to visit your mechanic in order to carry an in-depth check on your Mercedes Classe B 3 and determine this problem.
