Discovering noises from your vehicle often is never reassuring, so hearing noises on your Mercedes Classe E 5 suspensions when you go over a speed bump can be disturbing. This indicator may be a sign of a minor problem as well as a warning of a much larger repair to come. In any case, it is important to check the cause and take the necessary actions to eliminate the problem, it is with this intention 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, then, 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 E 5
Check Mercedes Classe E 5 suspension
If you experience a suspension noise when you pass a speed bump on your Mercedes Classe E 5, and it is characterized 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 In fact, it may be the suspension cups, which, when they are out of date, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its function during small bumps that compress the suspensions. To examine if this is the problem that concerns 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 swapping them as soon as possible or you may affect other parts and have to make more important repairs.
Check the cardan shaft
If you are here because you have searched for “Mercedes Classe E 5 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 In fact, when the cardan bellows get outdated and the dirt/dust accumulates inside them their working is degraded and it is possible to experience a noise when they are in torsion.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 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 E 5, don’t hesitate to check out this content.
Check steering hinges/stabilizer bar
Finally, when you recognise a suspension noise when your Mercedes Classe E 5 passes over a speed bumps, it is imaginable that the hinges or the stabilizer bar are responsible. Just like the gimbals, the steering part is mobilized when you change direction. If this is the situation, the components that may have been damaged by usual 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, position it under the vehicle and apply twists on each of its elements to examine that there is no particular play on one of them, they are meant to endure you quite strongly over their entire travel. Remember to take your vehicle to your technician or replace them if they are involved.
squeaky noise speed bump Mercedes Classe E 5
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 E 5, it is plausible that it is the stabilizer bar itself that is concerned. In fact, abnormal/pronounced wear of the latter can cause unusual friction which can provoke this squeaking noise. Keep in mind to examine by passing under your vehicle the condition of the paint on your bar which will indicate if there is friction. Second plausible explanation, it may be your stabilizer bar silentblocks that are dried out and create noise, in which case take them off from the cradle and grease them, this should solve the problem.
Check engine silentblocks
Finally, last case that we can examine together, it is the engine silentblocks, actually, these silentblocks work 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 shows up when you pass a speed bumps or any holes with your Mercedes Classe E 5. To replace them go to your technician.
Other speed bump noise Mercedes Classe E 5
If, despite all its assumptions, you still can’t locate the origin of the noise your Mercedes Classe E 5 makes when you pass a speed bump, we recommend you to consult this content on a loud noise on Mercedes Classe E 5 or to visit your technician in order to carry an in-depth check on your Mercedes Classe E 5 and find this problem.
