Experiencing noises from your vehicle often is never reassuring, so discovering noises on your Audi S5 suspensions when you pass a speed bump can be stressful. This symptom may be a sign of a small issue as well as a warning of a much larger repair to come. Whatever the case, it is fundamental to check the origin and take the necessary actions to solve the issue, it is with this intention 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 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 Audi S5
Check Audi S5 suspension
If you notice a suspension noise when you pass a speed bump on your Audi S5, and it is categorized 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 verify if this is the issue 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 fairly quickly or you may affect other parts and have to make more important vehicle repairs.
Check the cardan shaft
If you are here because you have researched for “Audi S5 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 In fact, when the cardan bellows get out of date and the dirt/dust accumulates inside them their operation is deteriorated and it is possible to experience a sound when they are in torsion.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 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 conditions you should consider swapping it or them. If you have the feeling that this noise is more like a a loud noise on Audi S5, don’t hesitate to read this content.
Check steering hinges/stabilizer bar
Finally, when you detect a suspension noise when your Audi S5 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 vary direction. If this is your situation, the parts that may have been damaged 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 verify it, position it under the automobile and apply twists on each of its elements to verify that there is no special play on one of them, they are supposed to resist you quite strongly over their entire travel. Remember to take your vehicle to your auto technician or replace them if they are involved.
squeaky noise speed bump Audi S5
Check the stabilizer bar
If, alternatively, you have a noise that is more like a squeak when you pass a speed bump with your Audi S5, it is plausible that it is the stabilizer bar itself that is concerned. In fact, abnormal/pronounced wear of the latter can cause abnormal friction which can provoke this squeaking noise. Remember to verify by passing under your automobile the condition of the paint on your bar which will tell us if there is friction. Second plausible explanation, it may be your stabilizer bar silentblocks that are dried out and provoke noise, in which case take them out from the cradle and grease them, this should fix the issue.
Check engine silentblocks
Finally, last case that we can verify together, it is the engine silentblocks, in fact, these silentblocks function as pads/shock absorbers between the engine and the cradle of the vehicle, a obvious fatigue of these will generate a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise occurs when you pass a speed bumps or any holes with your Audi S5. To replace them go to your auto technician.
Other speed bump noise Audi S5
If, despite all its assumptions, you still can’t find the origin of the noise your Audi S5 makes when you pass a speed bump, we recommend you to consult this article on a loud noise on Audi S5 or to visit your auto technician in order to carry an in-depth check on your Audi S5 and determine this issue.
