Discovering noises from your vehicle often is never comforting, so discovering noises on your Volkswagen Lupo suspensions when you pass a speed bump can be disturbing. This 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 fundamental to check the origin and take the necessary actions to correct the trouble, it is with this goal in mind that we wanted to write this article to help you see more clearly. We will first see the possible causes for a crack when the speed bump passes, then, 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 Lupo
Check Volkswagen Lupo suspension
If you notice a suspension noise when you pass a speed bump on your Volkswagen Lupo, 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 In fact, it may be the suspension cups, which, when they are out of date, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its function during small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 verify if this is the trouble that worries you, take a dented road and pay attention 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 damage other parts and have to make more important repairs.
Check the cardan shaft
If you are here because you have searched for “Volkswagen Lupo 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 In fact, when the cardan bellows get outdated and the dirt/dust accumulates inside them their operation is deteriorated and it is possible to experience a noise when they are in torsion.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 swapping it or them. If you have the feeling that this noise is more like a a loud noise on Volkswagen Lupo, don’t hesitate to refer to this content.
Check steering hinges/stabilizer bar
Finally, when you find out a suspension noise when your Volkswagen Lupo passes over a speed bumps, it is possible 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 the situation, the components that may have been affected by usual 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, place it under the automobile and apply twists on each of its components to verify that there is no special play on one of them, they are meant to endure you quite strongly over their entire travel. Keep in mind to take your vehicle to your auto mechanic or change them if they are involved.
squeaky noise speed bump Volkswagen Lupo
Check the stabilizer bar
If, however, you have a noise that is more like a squeak when you pass a speed bump with your Volkswagen Lupo, 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. Remember to verify by passing under your automobile the condition of the paint on your bar which will indicate 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 out from the cradle and grease them, this should solve the trouble.
Check engine silentblocks
Finally, last point that we can verify 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 make a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise shows up when you pass a speed bumps or any holes with your Volkswagen Lupo. To swap them go to your auto technician.
Other speed bump noise Volkswagen Lupo
If, despite all its assumptions, you still can’t find the source of the noise your Volkswagen Lupo makes when you pass a speed bump, we recommend you to refer to this article on a loud noise on Volkswagen Lupo or to visit your auto mechanic in order to carry an in-depth check on your Volkswagen Lupo and determine this trouble.
