Hearing noises from your automobile regularly is never reassuring, so listening noises on your Mercedes Classe E suspensions when you pass a speed bump can be stressing. This 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 essential to check the source and take the necessary actions to eliminate the trouble, it is with this goal in mind that we wanted to write this document to help you see more clearly. We will first see the possible causes for a crack when the speed bump passes, then, 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 E
Check Mercedes Classe E suspension
If you experience a suspension noise when you pass a speed bump on your Mercedes Classe E, 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 In fact, it may be the suspension cups, which, when they are out of date, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its job during small bumps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 examine if this is the trouble that concerns you, take a dented road and focus on the noise coming from your front axle as you drive over holes. If it is indeed the cups, think of replacing them as soon as possible or you may affect other parts and have to make more important auto repairs.
Check the cardan shaft
If you are here because you have researched for “Mercedes Classe E 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 In fact, when the cardan bellows get out of date and the dirt/dust amasses inside them their functions is degraded and it is possible to experience a noise when they are in torsion.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 E, don’t hesitate to check out this document.
Check steering hinges/stabilizer bar
Finally, when you detect a suspension noise when your Mercedes Classe E 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 vary direction. If this is the case, 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 examine it, put it under the vehicle and apply twists on each of its components to examine that there is no special play on one of them, they are supposed to endure you quite strongly over their entire travel. Remember to take your Mercedes Classe E to your auto mechanic or swap them if they are involved.
squeaky noise speed bump Mercedes Classe E
Check the stabilizer bar
If, on the other hand, you have a noise that is more like a squeak when you pass a speed bump with your Mercedes Classe E, it is plausible that it is the stabilizer bar itself that is involved. In fact, abnormal/pronounced wear of the latter can cause uncommon friction which can provoke this squeaking noise. Remember to examine by passing under your vehicle the condition of the paint on your bar which will tell us if there is friction. Second plausible point, it may be your stabilizer bar silentblocks that are dry and create noise, in which case disassemble them from the cradle and grease them, this should resolve 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 automobile, 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 occurs when you pass a speed bumps or any holes with your Mercedes Classe E. To replace them go to your technician.
Other speed bump noise Mercedes Classe E
If, despite all its assumptions, you still can’t uncover the origin of the noise your Mercedes Classe E makes when you pass a speed bump, we recommend you to consult this article on a loud noise on Mercedes Classe E or to visit your auto mechanic in order to carry an in-depth check on your Mercedes Classe E and find this trouble.
