Finding out noises from your car regularly is never reassuring, so hearing noises on your Mercedes Classe C 3 suspensions when you go over a speed bump can be stressing. This indicator may be a sign of a small issue as well as a warning of a much larger repair to come. Whatever the case, it is fundamental to check the origin and take the necessary actions to correct 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 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 C 3
Check Mercedes Classe C 3 suspension
If you notice a suspension noise when you pass a speed bump on your Mercedes Classe C 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 function during small bumps that compress the suspensions. To check if this is the issue that worries 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 changing them quickly or you may ruin other parts and have to make more important fixes.
Check the cardan shaft
If you are here because you have looked for for “Mercedes Classe C 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 In fact, when the cardan bellows get outdated and the dirt/dust accumulates inside them their operation is deteriorated and it is possible to experience a sound when they are in torsion.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 changing it or them. If you have the feeling that this noise is more like a a loud noise on Mercedes Classe C 3, don’t hesitate to check out this document.
Check steering hinges/stabilizer bar
Finally, when you detect a suspension noise when your Mercedes Classe C 3 passes over a speed bumps, it is imaginable 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 components that may have been broken by usual 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, put it under the automobile 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. Keep in mind to take your vehicle to your technician or swap them if they are involved.
squeaky noise speed bump Mercedes Classe C 3
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 Mercedes Classe C 3, it is plausible that it is the stabilizer bar itself that is concerned. In fact, abnormal/pronounced wear of the latter can cause uncommon friction which can create this squeaking noise. Remember to check by going under your automobile the condition of the paint on your bar which will reveal if there is friction. Second plausible explanation, 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 solve the issue.
Check engine silentblocks
Finally, last case that we can check together, it is the engine silentblocks, actually, these silentblocks act as pads/shock absorbers between the engine and the cradle of the car, a evident 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 C 3. To swap them go to your technician.
Other speed bump noise Mercedes Classe C 3
If, even though all its assumptions, you still can’t find the source of the noise your Mercedes Classe C 3 makes when you pass a speed bump, we suggest you to consult this article on a loud noise on Mercedes Classe C 3 or to visit your technician in order to carry an in-depth check on your Mercedes Classe C 3 and identify this issue.
