Experiencing noises from your vehicle often is never comforting, so listening noises on your Mercedes Benz CLA Class suspensions when you pass a speed bump can be stressful. This indicator may be a sign of a insignificant 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 correct the problem, it is with this intention in mind that we wanted to write this content 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 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 CLA Class
Check Mercedes Benz CLA Class suspension
If you notice a suspension noise when you pass a speed bump on your Mercedes Benz CLA Class, and it is characterized by a “clack” or cracking, it is highly plausible that your suspension block is the cause of it. In fact, it may be the suspension cups, which, when they are dead, 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 examine if this is the problem that worries you, take a dented road and focus on the noise coming from your front axle as you circulate over holes. If it is indeed the cups, think of replacing them quickly or you may ruin other parts and have to make more important maintenance.
Check the cardan shaft
If you are here because you have researched for “Mercedes Benz CLA 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 old and the dirt/dust accumulates inside them their operation is degraded 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 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 Benz CLA Class, don’t hesitate to check out this article.
Check steering hinges/stabilizer bar
Finally, when you detect a suspension noise when your Mercedes Benz CLA Class passes over a speed bumps, it is possible that the hinges or the stabilizer bar are responsible. Simply like the gimbals, the steering part is mobilized when you change direction. If this is the situation, the components that may have been destroyed by usual wear and tear or impacts (e. g. sidewalks). The steering hinges, the stabilizer bar hinges. can be the causes of your noises, to examine it, place it under the car 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. Keep in mind to take your Mercedes Benz CLA Class to your mechanic or change them if they are involved.
squeaky noise speed bump Mercedes Benz CLA Class
Check the stabilizer bar
If, alternatively, you have a noise that is more like a squeak when you pass a speed bump with your Mercedes Benz CLA Class, it is plausible that it is the stabilizer bar itself that is involved. In fact, abnormal/pronounced wear of the latter can cause abnormal friction which can create this squeaking noise. Keep in mind to examine by going under your car the condition of the paint on your bar which will show if there is friction. Second plausible explanation, it may be your stabilizer bar silentblocks that are dry 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 possibility that we can examine together, it is the engine silentblocks, actually, these silentblocks function as pads/shock absorbers between the engine and the cradle of the vehicle, a evident weakness of these will generate a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise appears when you pass a speed bumps or any holes with your Mercedes Benz CLA Class. To swap them go to your technician.
Other speed bump noise Mercedes Benz CLA Class
If, even though all its assumptions, you still can’t find the origin of the noise your Mercedes Benz CLA Class makes when you pass a speed bump, we suggest you to refer to this article on a loud noise on Mercedes Benz CLA Class or to visit your mechanic in order to carry an in-depth check on your Mercedes Benz CLA Class and find this problem.