Experiencing noises from your auto regularly is never reassuring, so discovering noises on your Mercedes Slk suspensions when you go over a speed bump can be worrying. This warning sign may be a sign of a insignificant issue as well as a warning of a much larger repair to come. Whatever the case, it is fundamental to check the cause and take the necessary actions to solve the issue, it is with this aim in mind that we wanted to write this document to help you see more clearly. We will first see the possible reasons 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 Slk
Check Mercedes Slk suspension
If you notice a suspension noise when you pass a speed bump on your Mercedes Slk, and it is categorized by a “clack” or cracking, it is highly possible that your suspension block is the origin of it. Indeed, 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 job during small bumps that compress the suspensions. To verify 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 circulate over holes. If it is indeed the cups, think of changing them as soon as possible or you may ruin other parts and have to make more important repairs.
Check the cardan shaft
If you are here because you have researched for “Mercedes Slk suspension noise” and the suspension is not the cause of your problem, it may be that the cardan shaft is responsible. Indeed, when the cardan bellows get old and the dirt/dust builds up inside them their working is degraded and it is possible to experience a noise 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 turn at low speed. If it cracks in these two cases you should consider replacing it or them. If you have the feeling that this noise is more like a a loud noise on Mercedes Slk, don’t hesitate to check out this article.
Check steering hinges/stabilizer bar
Finally, when you find out a suspension noise when your Mercedes Slk passes over a speed bumps, it is plausible that the hinges or the stabilizer bar are responsible. Simply like the gimbals, the steering part is mobilized when you vary direction. If this is your situation, the components that may have been damaged by normal 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, put it under the vehicle and apply twists on each of its elements to verify that there is no particular play on one of them, they are expected to endure you quite strongly over their entire travel. Keep in mind to take your Mercedes Slk to your mechanic or replace them if they are involved.
squeaky noise speed bump Mercedes Slk
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 Slk, it is possible that it is the stabilizer bar itself that is concerned. Indeed, abnormal/pronounced wear of the latter can cause irregular friction which can generate this squeaking noise. Bear in mind to verify by passing under your vehicle the condition of the paint on your bar which will show if there is friction. Second possible point, it may be your stabilizer bar silentblocks that are dry and cause noise, in which case remove them from the cradle and grease them, this should eliminate the issue.
Check engine silentblocks
Finally, last possibility that we can verify together, it is the engine silentblocks, in fact, these silentblocks work as pads/shock absorbers between the engine and the cradle of the auto, a evident fatigue of these will generate a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise happens when you pass a speed bumps or any holes with your Mercedes Slk. To replace them go to your auto mechanic.
Other speed bump noise Mercedes Slk
If, despite all its assumptions, you still can’t locate the origin of the noise your Mercedes Slk makes when you pass a speed bump, we suggest you to refer to this article on a loud noise on Mercedes Slk or to visit your mechanic in order to carry an in-depth check on your Mercedes Slk and determine this issue.
