Finding out noises from your vehicle often is never comforting, so discovering noises on your Volkswagen Polo 8 suspensions when you pass a speed bump can be stressing. This sign may be a sign of a small issue as well as a warning of a much larger repair to come. In any case, it is essential to check the origin and take the necessary actions to correct the issue, it is with this intention in mind that we wanted to write this document 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 8
Check Volkswagen Polo 8 suspension
If you notice a suspension noise when you pass a speed bump on your Volkswagen Polo 8, 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 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 function during small bumps that compress the suspensions. To check if this is the issue that concerns you, take a dented road and focus on the noise coming from your front axle as you go over holes. If it is indeed the cups, think of changing them quickly 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 researched for “Volkswagen Polo 8 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 amasses inside them their action is deteriorated and it is possible to experience a sound 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 circumstances you should consider changing it or them. If you have the feeling that this noise is more like a a loud noise on Volkswagen Polo 8, don’t hesitate to read this article.
Check steering hinges/stabilizer bar
Finally, when you know a suspension noise when your Volkswagen Polo 8 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 adjust direction. If this is the case, the parts that may have been affected 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 check it, position it under the vehicle and apply twists on each of its components to check that there is no special play on one of them, they are supposed to endure you quite strongly over their entire travel. Remember to take your Volkswagen Polo 8 to your auto mechanic or replace them if they are involved.
squeaky noise speed bump Volkswagen Polo 8
Check the stabilizer bar
If, alternatively, you have a noise that is more like a squeak when you pass a speed bump with your Volkswagen Polo 8, 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 generate this squeaking noise. Please remember to check by passing under your vehicle the condition of the paint on your bar which will tell us if there is friction. Second plausible point, it may be your stabilizer bar silentblocks that are dry and create noise, in which case take them out from the cradle and grease them, this should resolve the issue.
Check engine silentblocks
Finally, last point that we can check together, it is the engine silentblocks, actually, these silentblocks act as pads/shock absorbers between the engine and the cradle of the vehicle, a evident fatigue of these will generate a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise comes up when you pass a speed bumps or any holes with your Volkswagen Polo 8. To change them go to your technician.
Other speed bump noise Volkswagen Polo 8
If, despite all its assumptions, you still can’t locate the origin of the noise your Volkswagen Polo 8 makes when you pass a speed bump, we suggest you to read this article on a loud noise on Volkswagen Polo 8 or to visit your auto mechanic in order to carry an in-depth check on your Volkswagen Polo 8 and identify this issue.
