Listening noises from your auto often is never comforting, so discovering noises on your Citroen C-zero suspensions when you pass a speed bump can be stressful. This sign may be a sign of a insignificant issue as well as a warning of a much larger repair to come. Whatever the case, it is necessary to check the cause and take the necessary actions to eliminate the issue, it is with this aim in mind that we wanted to write this content 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 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 Citroen C-zero
Check Citroen C-zero suspension
If you experience a suspension noise when you pass a speed bump on your Citroen C-zero, and it is characterized by a “clack” or cracking, it is highly plausible that your suspension block is the origin of it. Indeed, it may be the suspension cups, which, when they are out of date, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its role during small bumps that compress the suspensions. To verify if this is the issue 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 swapping them fairly quickly or you may affect other parts and have to make more important repairs.
Check the cardan shaft
If you are here because you have looked for for “Citroen C-zero suspension noise” and the suspension is not the cause of your problem, it may be that the cardan shaft is responsible. Indeed, when the cardan bellows get out of date and the dirt/dust builds up inside them their working is degraded and it is possible to experience a sound when they are in torsion.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 make a turn at low speed. If it cracks in these two conditions you should consider changing it or them. If you have the feeling that this noise is more like a a loud noise on Citroen C-zero, don’t hesitate to check out this article.
Check steering hinges/stabilizer bar
Finally, when you recognise a suspension noise when your Citroen C-zero 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 modify direction. If this is the case, the parts that may have been damaged 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 verify it, place it under the vehicle and apply twists on each of its elements to verify that there is no special play on one of them, they are expected to resist you quite strongly over their entire travel. Remember to take your Citroen C-zero to your auto mechanic or swap them if they are involved.
squeaky noise speed bump Citroen C-zero
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 Citroen C-zero, it is plausible that it is the stabilizer bar itself that is involved. Indeed, abnormal/pronounced wear of the latter can cause unusual friction which can generate this squeaking noise. Please remember to verify by passing under your vehicle the condition of the paint on your bar which will reveal if there is friction. Second plausible point, it may be your stabilizer bar silentblocks that are dried out and cause noise, in which case remove them from the cradle and grease them, this should eliminate the issue.
Check engine silentblocks
Finally, last point that we can verify together, it is the engine silentblocks, actually, these silentblocks work as pads/shock absorbers between the engine and the cradle of the auto, a noticable fatigue of these will make a subsidence and therefore a space between the engine and the silentblocks, it may happen that a squeaking noise occurs when you pass a speed bumps or any holes with your Citroen C-zero. To replace them go to your auto mechanic.
Other speed bump noise Citroen C-zero
If, even though all its assumptions, you still can’t find the origin of the noise your Citroen C-zero makes when you pass a speed bump, we suggest you to refer to this article on a loud noise on Citroen C-zero or to visit your auto mechanic in order to carry an in-depth check on your Citroen C-zero and determine this issue.
