Discovering noises from your automobile regularly is never reassuring, so hearing noises on your Mercedes Benz M Class suspensions when you go over a speed bump can be worrying. This sign may be a sign of a minor issue as well as a warning of a much larger repair to come. In any case, it is essential to check the cause and take the necessary actions to resolve the issue, 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 explanations 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 Benz M Class
Check Mercedes Benz M Class suspension
If you notice a suspension noise when you pass a speed bump on your Mercedes Benz M Class, and it is categorized by a “clack” or cracking, it is highly possible 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 examine if this is the issue 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 fairly 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 searched for “Mercedes Benz M Class 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 In fact, when the cardan bellows get outdated and the dirt/dust accumulates inside them their operation is deteriorated and it is possible to experience a sound when they are in torsion.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 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 replacing it or them. If you have the feeling that this noise is more like a a loud noise on Mercedes Benz M Class, don’t hesitate to read this document.
Check steering hinges/stabilizer bar
Finally, when you find out a suspension noise when your Mercedes Benz M Class passes over a speed bumps, it is plausible 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 affected 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 examine it, put it under the vehicle and apply twists on each of its elements to examine that there is no special play on one of them, they are meant to resist you quite strongly over their entire travel. Please remember to take your vehicle to your auto mechanic or swap them if they are involved.
squeaky noise speed bump Mercedes Benz M Class
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 Benz M Class, it is possible that it is the stabilizer bar itself that is involved. In fact, abnormal/pronounced wear of the latter can cause unusual friction which can generate this squeaking noise. Bear in mind to examine by going under your vehicle the condition of the paint on your bar which will indicate if there is friction. Second possible point, it may be your stabilizer bar silentblocks that are dried out and bring on noise, in which case remove them from the cradle and grease them, this should eliminate the issue.
Check engine silentblocks
Finally, last point that we can examine together, it is the engine silentblocks, actually, these silentblocks operate as pads/shock absorbers between the engine and the cradle of the automobile, a evident weakness of these will generate 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 Benz M Class. To replace them go to your auto mechanic.
Other speed bump noise Mercedes Benz M Class
If, even though all its assumptions, you still can’t uncover the origin of the noise your Mercedes Benz M Class makes when you pass a speed bump, we recommend you to read this content on a loud noise on Mercedes Benz M Class or to visit your auto mechanic in order to carry an in-depth check on your Mercedes Benz M Class and determine this issue.
