Listening noises from your vehicle regularly is never comforting, so discovering noises on your Mercedes Classe C 4 suspensions when you pass a speed bump can be worrying. This indicator may be a sign of a insignificant trouble 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 solve the trouble, it is with this aim in mind that we wanted to write this content to help 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 Mercedes Classe C 4
Check Mercedes Classe C 4 suspension
If you notice a suspension noise when you pass a speed bump on your Mercedes Classe C 4, and it is categorized by a “clack” or cracking, it is highly possible that your suspension block is the cause of it. Indeed, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its job during small bumps that compress the suspensions. To check if this is the trouble that concerns you, take a dented road and listen 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 affect other parts and have to make more important maintenance.
Check the cardan shaft
If you are here because you have searched for “Mercedes Classe C 4 suspension noise” and the suspension is not the cause of your problem, it may be that the cardan shaft is responsible. Indeed, when the cardan bellows get out of date and the dirt/dust builds up inside them their operation is deteriorated and it is possible to experience a noise when they are in torsion.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 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 C 4, don’t hesitate to check out this document.
Check steering hinges/stabilizer bar
Finally, when you experience a suspension noise when your Mercedes Classe C 4 passes over a speed bumps, it is possible that the hinges or the stabilizer bar are responsible. Just like the gimbals, the steering part is mobilized when you modify direction. If this is your situation, the components that may have been broken 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 check it, put it under the vehicle and apply twists on each of its components 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 Mercedes Classe C 4 to your technician or replace them if they are involved.
squeaky noise speed bump Mercedes Classe C 4
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 C 4, it is possible that it is the stabilizer bar itself that is involved. Indeed, abnormal/pronounced wear of the latter can cause uncommon friction which can cause this squeaking noise. Bear in mind to check by going under your vehicle the condition of the paint on your bar which will tell us if there is friction. Second possible explanation, it may be your stabilizer bar silentblocks that are dry and create noise, in which case take them out from the cradle and grease them, this should eliminate the trouble.
Check engine silentblocks
Finally, last point that we can check together, it is the engine silentblocks, in fact, these silentblocks operate as pads/shock absorbers between the engine and the cradle of the vehicle, a evident fatigue of these will create a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise happens when you pass a speed bumps or any holes with your Mercedes Classe C 4. To swap them go to your auto technician.
Other speed bump noise Mercedes Classe C 4
If, even though all its assumptions, you still can’t find the origin of the noise your Mercedes Classe C 4 makes when you pass a speed bump, we recommend you to refer to this content on a loud noise on Mercedes Classe C 4 or to visit your technician in order to carry an in-depth check on your Mercedes Classe C 4 and discover this trouble.
