Experiencing noises from your auto often is never comforting, so hearing noises on your Opel Zafira 3 suspensions when you go over a speed bump can be worrying. This warning sign may be a sign of a insignificant problem as well as a warning of a much larger repair to come. In any case, it is necessary to check the source and take the necessary actions to resolve the problem, it is with this goal in mind that we wanted to write this document to help you see more clearly. We will first see the possible explanations 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 Opel Zafira 3
Check Opel Zafira 3 suspension
If you notice a suspension noise when you pass a speed bump on your Opel Zafira 3, and it is characterized 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 In fact, it may be the suspension cups, which, when they are outdated, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its job during small bumps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 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 as soon as possible or you may damage other parts and have to make more important fixes.
Check the cardan shaft
If you are here because you have researched for “Opel Zafira 3 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 In fact, when the cardan bellows get out of date and the dirt/dust amasses inside them their functions is deteriorated and it is possible to experience a sound when they are in torsion.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 cases you should consider replacing it or them. If you have the feeling that this noise is more like a a loud noise on Opel Zafira 3, don’t hesitate to visit this document.
Check steering hinges/stabilizer bar
Finally, when you recognise a suspension noise when your Opel Zafira 3 passes over a speed bumps, it is imaginable that the hinges or the stabilizer bar are responsible. Just like the gimbals, the steering part is mobilized when you modify direction. If this is your situation, the components that may have been affected 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 car and apply twists on each of its components to check that there is no particular play on one of them, they are meant to endure you quite strongly over their entire travel. Keep in mind to take your Opel Zafira 3 to your mechanic or replace them if they are involved.
squeaky noise speed bump Opel Zafira 3
Check the stabilizer bar
If, on the other hand, you have a noise that is more like a squeak when you go over a speed bump with your Opel Zafira 3, 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 cause this squeaking noise. Keep in mind to check by passing under your car 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 problem.
Check engine silentblocks
Finally, last possibility that we can check together, it is the engine silentblocks, actually, these silentblocks operate as pads/shock absorbers between the engine and the cradle of the auto, a noticable weakness of these will create a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise happens when you pass a speed bumps or any holes with your Opel Zafira 3. To replace them go to your mechanic.
Other speed bump noise Opel Zafira 3
If, despite all its assumptions, you still can’t find the origin of the noise your Opel Zafira 3 makes when you pass a speed bump, we advise you to consult this article on a loud noise on Opel Zafira 3 or to visit your mechanic in order to carry an in-depth check on your Opel Zafira 3 and find this problem.
