Listening noises from your vehicle frequently is never reassuring, so hearing noises on your Citroen C15 suspensions when you pass a speed bump can be disturbing. This sign may be a sign of a small problem as well as a warning of a much larger repair to come. Whatever the case, it is necessary to check the origin and take the necessary actions to correct the problem, it is with this aim in mind that we wanted to write this article to support you see more clearly. We will first see the possible reasons 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 Citroen C15
Check Citroen C15 suspension
If you encounter a suspension noise when you pass a speed bump on your Citroen C15, 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 dead, 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 check if this is the problem 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 as soon as possible 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 “Citroen C15 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 old and the dirt/dust amasses inside them their working is deteriorated and it is possible to experience a noise 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 situations you should consider replacing it or them. If you have the feeling that this noise is more like a a loud noise on Citroen C15, don’t hesitate to refer to this article.
Check steering hinges/stabilizer bar
Finally, when you detect a suspension noise when your Citroen C15 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 vary direction. If this is the situation, the parts 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 check it, place 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 Citroen C15 to your mechanic or change them if they are involved.
squeaky noise speed bump Citroen C15
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 C15, it is plausible that it is the stabilizer bar itself that is concerned. Indeed, abnormal/pronounced wear of the latter can cause uncommon friction which can create this squeaking noise. Bear in mind to check by passing under your vehicle 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 dried out and provoke noise, in which case remove them from the cradle and grease them, this should solve the problem.
Check engine silentblocks
Finally, last point 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 vehicle, 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 C15. To swap them go to your auto technician.
Other speed bump noise Citroen C15
If, despite all its assumptions, you still can’t uncover the source of the noise your Citroen C15 makes when you pass a speed bump, we recommend you to refer to this content on a loud noise on Citroen C15 or to visit your mechanic in order to carry an in-depth check on your Citroen C15 and determine this problem.
