If you notice a noise on your car, you are right to be attentive of it and take it seriously, although it is conceivable that nothing significant will result, it is also conceivable that it is the indication of a more significant repair. A noise that occurs in the trunk of your Citroen C4 is luckily more a indication of a small manipulation or service, rather than a complicated one. To support you in your research, we have decided to generate this content to present you with the most likely solutions to your issue. First we will see that this trunk noise on your Citroen C4 can come from built up dirt, the issue can also come from a loose lock and finally, it can even come from a simple rivet that sits inside your bumper.
Noise in the trunk Citroen C4 : Accumulated dirt that causes poor closing
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We will therefore begin with a trunk noise on your Citroen C4 induced by dirt accumulated on your joints, lock for example. In fact, it is conceivable that on a car that is already a few years old and whose cleaning is not always a top priority or that the roads used are not very clean that dirt builds up at the trunk gasket. This issue causes a poor closure of the trunk and a noise that can sound like a crack. To check if you are in this scenario, open the trunk of your Citroen C4, examine the state of the gasket that goes around the entire tailgate and clean it with a wet/soap cloth, dry the whole thing and try to close the trunk and take a dentred road to see the impact. If this is not the case, continue to the other hypotheses that will probably give a solution. It is conceivable however that you have a trunk noise on your Citroen C4 that is linked to other sources such as shock absorbers, do not hesitate to have a look to this content on the noises at the back of a Citroen C4.
Noise in the trunk of my Citroen C4 : Loose lock, clicking noise
Second possibility, you may also, over time, be the victim of a locking system that became loose. And this is one of the most probably possibilities. In fact, knowing a trunk noise on your Citroen C4 is very often linked to this issue. Several solutions are existing to you subject to the level of play you have with your lock. The first is that in some cases the offset is minimal and a simple greasing of the system with thick grease is more than enough to fix the problem. Secondly, it is also conceivable that you really have a lot of play on your lock and that each time the trunk “jumps”, in which case you would have to remove the cover that allows access to the lock (inside the trunk). Then, using torx screws, you unscrew the striker attached to the threshold, simply push it back a little towards the inside of the trunk and tighten it again. Be sure you check the centering of the striker in connection with the trunk lock. If after examining the trunk of your Citroen C4 closes badly, it means that you have moved it too far, replicate the process by pushing the striker less.
Noise in my trunk Citroen C4 : Rivet following plate change in the trunk/ bumper
Finally, one of the last possibilities. It is that following a license plate change you were unfortunate and that a piece of rivet fell behind your plate. In fact, when a plate change is done, to take off the old one the process used is to drill the existing rivets in order to release the license plate. Sadly, it can happen that part of the rivet falls into the hole of the bumper and it will therefore wander inside the bumper and can induce an annoying noise. To check that it is this problem you are experiencing, and that you have a trunk noise on your Citroen C4 linked to a rivet, you will need to check that it is in the tailgate open it and stir it to distinguish the noise. If this is your case, you will have to remove the linings from the trunk to remove it. Finally, if it is your bumper, it is in this rarer and more embarrassing case, you will have to take off the bumper to remove the bits of rivet that are running around.
