If you identify a noise on your vehicle, you are right to be aware of it and take it seriously, although it is possible that nothing serious will occur, it is also possible that it is the indication of a more significant restoration. A noise that occurs in the trunk of your Mercedes Benz C Class is luckily more a sign of a small adjustment or service, rather than a difficult one. To help you in your research, we have chosen to write this article to present you with the most likely solutions to your issue. First we will see that this trunk noise on your Mercedes Benz C Class can come from accumulated 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 Mercedes Benz C Class : Accumulated dirt that causes poor closing
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We will therefore start with a trunk noise on your Mercedes Benz C Class created by dirt accumulated on your joints, lock for example. In fact, it is possible that on a vehicle that is already a few years old and whose cleaning is not always a priority or that the roads used are not very clean that dirt accumulates at the trunk gasket. This issue causes a poor closure of the trunk and a noise that can sound like a crack. To verify if you are in this situation, open the trunk of your Mercedes Benz C Class, check 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 possible however that you have a trunk noise on your Mercedes Benz C Class that is linked to other sources such as shock absorbers, do not hesitate to consult this article on the noises at the back of a Mercedes Benz C Class.
Noise in the trunk of my Mercedes Benz C Class : Loose lock, clicking noise
Second possibility, you may also, over time, experience a locking system that has taken up some play. And this is one of the most potential alternatives. In fact, knowing a trunk noise on your Mercedes Benz C Class is very frequently linked to this issue. Several solutions are available to you subject to the level of play you have with your lock. The first is that occasionally the offset is minimal and a simple greasing of the mechanism with thick grease is enough to eliminate the issue. Secondly, it is also possible that you really have a lot of play on your lock and that each time the trunk “jumps”, in which circumstance you would have to take out the cover that will allow 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 verify the centering of the striker in relation to the trunk lock. If after checking out the trunk of your Mercedes Benz C Class closes badly, it means that you have moved it too far, duplicate the process by pushing the striker less.
Noise in my trunk Mercedes Benz C Class : Rivet following plate swap in the trunk/ bumper
Finally, one of the last possibilities. It is that following a license plate swap you were unlucky and that a piece of rivet fell at the rear of your plate. In fact, when a plate swap is made, to take off the old one the process used is to drill the existing rivets to be able to release the license plate. Unfortunately, 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 trigger an annoying noise. To check that it is this problem you are experiencing, and that you have a trunk noise on your Mercedes Benz C Class linked to a rivet, you will need to verify that it is in the tailgate open it and stir it to specify the noise. If this is your situation, you will have to take out the linings from the trunk to remove it. Finally, if it is your bumper, it is in this rarer and more problematic situation, you will have to take off the bumper to remove the bits of rivet that are running around.
