Discovering noises from your vehicle frequently is never reassuring, so discovering noises on your Mercedes Classe B suspensions when you pass a speed bump can be disturbing. This warning sign may be a sign of a minor trouble 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 trouble, it is with this objective in mind that we wanted to write this content to help you see more clearly. We will first see the possible explanations 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 Mercedes Classe B
Check Mercedes Classe B suspension
If you notice a suspension noise when you pass a speed bump on your Mercedes Classe B, and it is categorized by a “clack” or cracking, it is highly plausible 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 In fact, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its role during small bumps that compress the suspensions. To examine if this is the trouble that worries you, take a dented road and focus on the noise coming from your front axle as you go over holes. If it is indeed the cups, think of replacing them as soon as possible or you may damage other parts and have to make more important maintenance.
Check the cardan shaft
If you are here because you have looked for for “Mercedes Classe B 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 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 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 Mercedes Classe B, don’t hesitate to check out this article.
Check steering hinges/stabilizer bar
Finally, when you experience a suspension noise when your Mercedes Classe B 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 your situation, the parts that may have been affected by regular wear and tear or impacts (e. g. sidewalks). The steering hinges, the stabilizer bar hinges. can be the causes of your noises, to examine it, put it under the automobile and apply twists on each of its components to examine that there is no special play on one of them, they are supposed to resist you quite strongly over their entire travel. Remember to take your vehicle to your mechanic or change them if they are involved.
squeaky noise speed bump Mercedes Classe B
Check the stabilizer bar
If, alternatively, you have a noise that is more like a squeak when you pass a speed bump with your Mercedes Classe B, it is plausible that it is the stabilizer bar itself that is concerned. In fact, abnormal/pronounced wear of the latter can cause irregular friction which can provoke this squeaking noise. Remember to examine by passing under your automobile the condition of the paint on your bar which will indicate if there is friction. Second plausible point, it may be your stabilizer bar silentblocks that are dried out and provoke noise, in which case take them out from the cradle and grease them, this should solve the trouble.
Check engine silentblocks
Finally, last case that we can examine together, it is the engine silentblocks, in fact, these silentblocks act as pads/shock absorbers between the engine and the cradle of the vehicle, 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 Mercedes Classe B. To change them go to your technician.
Other speed bump noise Mercedes Classe B
If, despite all its assumptions, you still can’t locate the origin of the noise your Mercedes Classe B makes when you pass a speed bump, we suggest you to read this content on a loud noise on Mercedes Classe B or to visit your mechanic in order to carry an in-depth check on your Mercedes Classe B and find this trouble.
