Hearing noises from your car regularly is never reassuring, so hearing noises on your Volkswagen Passat 8 suspensions when you pass a speed bump can be disturbing. This warning sign may be a sign of a insignificant problem as well as a warning of a much larger repair to come. Whatever the case, it is important to check the origin and take the necessary actions to solve the problem, it is with this intention in mind that we wanted to write this content 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 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 Volkswagen Passat 8
Check Volkswagen Passat 8 suspension
If you encounter a suspension noise when you pass a speed bump on your Volkswagen Passat 8, and it is categorized 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 In fact, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its job during small bumps that compress the suspensions. To check if this is the problem that concerns you, take a dented road and focus on 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 auto repairs.
Check the cardan shaft
If you are here because you have researched for “Volkswagen Passat 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 In fact, when the cardan bellows get outdated and the dirt/dust amasses inside them their operation is deteriorated and it is possible to experience a sound when they are in torsion.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 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 Passat 8, don’t hesitate to check out this content.
Check steering hinges/stabilizer bar
Finally, when you know a suspension noise when your Volkswagen Passat 8 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 adjust direction. If this is the case, 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 causes of your noises, to check it, place it under the automobile and apply twists on each of its elements to check that there is no particular play on one of them, they are expected to resist you quite strongly over their entire travel. Remember to take your Volkswagen Passat 8 to your technician or swap them if they are involved.
squeaky noise speed bump Volkswagen Passat 8
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 Passat 8, it is plausible that it is the stabilizer bar itself that is involved. In fact, abnormal/pronounced wear of the latter can cause abnormal friction which can create this squeaking noise. Remember to check 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 cause noise, in which case take them out from the cradle and grease them, this should fix the problem.
Check engine silentblocks
Finally, last case that we can check together, it is the engine silentblocks, actually, these silentblocks function as pads/shock absorbers between the engine and the cradle of the car, a evident weakness of these will create a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise appears when you pass a speed bumps or any holes with your Volkswagen Passat 8. To swap them go to your technician.
Other speed bump noise Volkswagen Passat 8
If, even though all its assumptions, you still can’t find the origin of the noise your Volkswagen Passat 8 makes when you pass a speed bump, we suggest you to refer to this article on a loud noise on Volkswagen Passat 8 or to visit your technician in order to carry an in-depth check on your Volkswagen Passat 8 and determine this problem.
