Finding out noises from your vehicle regularly is never comforting, so hearing noises on your Mercedes Classe E 4 suspensions when you go over a speed bump can be stressing. This indicator may be a sign of a small problem as well as a warning of a much larger repair to come. Whatever the case, it is necessary to check the cause and take the necessary actions to resolve the problem, it is with this goal in mind that we wanted to write this article to support you see more clearly. We will first see the possible reasons 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 4
Check Mercedes Classe E 4 suspension
If you encounter a suspension noise when you pass a speed bump on your Mercedes Classe E 4, and it is categorized by a “clack” or cracking, it is highly possible 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 In fact, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its role during small bumps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 verify if this is the problem that worries you, take a dented road and listen to the noise coming from your front axle as you drive over holes. If it is indeed the cups, think of swapping them quickly or you may damage other parts and have to make more important auto repairs.
Check the cardan shaft
If you are here because you have looked for for “Mercedes Classe E 4 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 accumulates inside them their functions is degraded and it is possible to experience a sound when they are in torsion. To verify 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 cases you should consider swapping it or them. If you have the feeling that this noise is more like a a loud noise on Mercedes Classe E 4, don’t hesitate to consult this article.
Check steering hinges/stabilizer bar
Finally, when you find out a suspension noise when your Mercedes Classe E 4 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 adjust direction. If this is the case, the components that may have been destroyed by regular wear and tear or impacts (e. g. sidewalks). The steering hinges, the stabilizer bar hinges. can be the origins of your noises, to verify it, position it under the automobile and apply twists on each of its elements to verify that there is no particular play on one of them, they are supposed to endure you quite strongly over their entire travel. Please remember to take your vehicle to your auto mechanic or replace them if they are involved.
squeaky noise speed bump Mercedes Classe E 4
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 E 4, it is possible that it is the stabilizer bar itself that is involved. In fact, abnormal/pronounced wear of the latter can cause uncommon friction which can create this squeaking noise. Keep in mind to verify by passing under your automobile the condition of the paint on your bar which will show if there is friction. Second possible explanation, it may be your stabilizer bar silentblocks that are dry and bring on noise, in which case disassemble them from the cradle and grease them, this should fix the problem.
Check engine silentblocks
Finally, last possibility that we can verify together, it is the engine silentblocks, actually, these silentblocks operate 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 happen that a squeaking noise shows up when you pass a speed bumps or any holes with your Mercedes Classe E 4. To change them go to your technician.
Other speed bump noise Mercedes Classe E 4
If, despite all its assumptions, you still can’t find the source of the noise your Mercedes Classe E 4 makes when you pass a speed bump, we suggest you to read this content on a loud noise on Mercedes Classe E 4 or to visit your auto mechanic in order to carry an in-depth check on your Mercedes Classe E 4 and identify this problem.
