Experiencing noises from your auto often is never reassuring, so listening noises on your Volkswagen Polo suspensions when you pass a speed bump can be stressful. This warning sign may be a sign of a small trouble as well as a warning of a much larger repair to come. Whatever the case, it is essential to check the source and take the necessary actions to resolve the trouble, it is with this objective in mind that we wanted to write this article to support you see more clearly. We will first see the possible explanations 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 Volkswagen Polo
Check Volkswagen Polo suspension
If you encounter a suspension noise when you pass a speed bump on your Volkswagen Polo, and it is characterized by a “clack” or cracking, it is highly plausible that your suspension block is the origin of it. In fact, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its function during small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 trouble 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 replacing them fairly quickly or you may ruin other parts and have to make more important vehicle repairs.
Check the cardan shaft
If you are here because you have searched for “Volkswagen Polo 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 noise 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 cases you should consider replacing it or them. If you have the feeling that this noise is more like a a loud noise on Volkswagen Polo, don’t hesitate to check out this document.
Check steering hinges/stabilizer bar
Finally, when you recognise a suspension noise when your Volkswagen Polo passes over a speed bumps, it is possible that the hinges or the stabilizer bar are responsible. Just like the gimbals, the steering part is mobilized when you change direction. If this is your situation, the components that may have been destroyed 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, place it under the car and apply twists on each of its components to examine that there is no particular play on one of them, they are expected to endure you quite strongly over their entire travel. Remember to take your Volkswagen Polo to your technician or change them if they are involved.
squeaky noise speed bump Volkswagen Polo
Check the stabilizer bar
If, on the other hand, you have a noise that is more like a squeak when you pass a speed bump with your Volkswagen Polo, 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. Please remember to examine by passing under your car the condition of the paint on your bar which will show if there is friction. Second plausible point, it may be your stabilizer bar silentblocks that are dried out and provoke noise, in which case remove them from the cradle and grease them, this should resolve the trouble.
Check engine silentblocks
Finally, last case 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 auto, 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 happens when you pass a speed bumps or any holes with your Volkswagen Polo. To change them go to your auto technician.
Other speed bump noise Volkswagen Polo
If, despite all its assumptions, you still can’t find the origin of the noise your Volkswagen Polo makes when you pass a speed bump, we suggest you to refer to this content on a loud noise on Volkswagen Polo or to visit your technician in order to carry an in-depth check on your Volkswagen Polo and determine this trouble.
