Discovering noises from your automobile regularly is never reassuring, so listening noises on your Mercedes Cla suspensions when you go over a speed bump can be stressful. This symptom 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 source and take the necessary actions to eliminate the issue, it is with this goal in mind that we wanted to write this document to support 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 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 Cla
Check Mercedes Cla suspension
If you encounter a suspension noise when you pass a speed bump on your Mercedes Cla, 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 In fact, it may be the suspension cups, which, when they are out of date, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its role during small bumps that compress the suspensions. To check if this is the issue that worries 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 damage other parts and have to make more important vehicle repairs.
Check the cardan shaft
If you are here because you have searched for “Mercedes Cla 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 In fact, when the cardan bellows get outdated and the dirt/dust builds up inside them their operation is degraded and it is possible to experience a noise when they are in torsion.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 make a turn at low speed. If it cracks in these two cases you should consider changing it or them. If you have the feeling that this noise is more like a a loud noise on Mercedes Cla, don’t hesitate to visit this document.
Check steering hinges/stabilizer bar
Finally, when you experience a suspension noise when your Mercedes Cla 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 adjust direction. If this is your situation, the parts 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, position it under the vehicle and apply twists on each of its elements to check that there is no special play on one of them, they are meant to resist you quite strongly over their entire travel. Keep in mind to take your vehicle to your technician or replace them if they are involved.
squeaky noise speed bump Mercedes Cla
Check the stabilizer bar
If, however, you have a noise that is more like a squeak when you go over a speed bump with your Mercedes Cla, it is possible that it is the stabilizer bar itself that is involved. In fact, abnormal/pronounced wear of the latter can cause abnormal friction which can generate this squeaking noise. Please remember to check by going under your vehicle the condition of the paint on your bar which will reveal if there is friction. Second possible point, it may be your stabilizer bar silentblocks that are dry and provoke noise, in which case take them out from the cradle and grease them, this should resolve the issue.
Check engine silentblocks
Finally, last case that we can check together, it is the engine silentblocks, in fact, these silentblocks function as pads/shock absorbers between the engine and the cradle of the automobile, a obvious weakness of these will generate a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise comes up when you pass a speed bumps or any holes with your Mercedes Cla. To change them go to your auto mechanic.
Other speed bump noise Mercedes Cla
If, despite all its assumptions, you still can’t locate the origin of the noise your Mercedes Cla makes when you pass a speed bump, we recommend you to consult this article on a loud noise on Mercedes Cla or to visit your technician in order to carry an in-depth check on your Mercedes Cla and determine this issue.
