If you find a noise on your car, you are right to be aware of it and take it seriously, although it is conceivable that nothing major will results, it is also conceivable that it is the signal of a more significant repair. A noise that shows up in the trunk of your Mercedes Classe C 4 is fortunately more a signal of a small manipulation or repair, rather than a difficult one. To help you in your research, we have chosen to generate this content to present you with the most likely solutions to your problem. First we will see that this trunk noise on your Mercedes Classe C 4 can come from accumulated dirt, the problem can also come from a loose lock and finally, it can even come from a simple rivet that sits inside your bumper.trunk-noise-mercedes-classe-c-4

Noise in the trunk Mercedes Classe C 4 : Accumulated dirt that triggers poor closing

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We will therefore begin with a trunk noise on your Mercedes Classe C 4 generated 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 priority or that the roads used are not very clean that dirt accumulates at the trunk gasket. This problem triggers a poor closure of the trunk and a noise that can sound like a crack. To check if you are in this situation, open the trunk of your Mercedes Classe C 4, verify 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 Mercedes Classe C 4 that is relating to other origins such as shock absorbers, do not hesitate to have a look to this content on the noises at the back of a Mercedes Classe C 4.

Noise in the trunk of my Mercedes Classe C 4 : Loose lock, clicking noise

Second probability, you may also, over time, experience a locking system that became loose. And this is one of the most probably possibilities. In fact, knowing a trunk noise on your Mercedes Classe C 4 is very often relating to this problem. Different solutions are existing to you subject to the level of play you have with your lock. The first is that quite often the offset is minimal and a simple greasing of the mechanism with thick grease is enough to eliminate the trouble. 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 circumstance you would have to remove 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. Don’t forget to check the centering of the striker in relation to the trunk lock. If after checking the trunk of your Mercedes Classe C 4 closes badly, it means that you have moved it too far, duplicate the process by pushing the striker less.

Noise in my trunk Mercedes Classe C 4 : 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 backside your plate. In fact, when a plate replacement is done, to take out the old one the procedure 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 generate an annoying noise. To check that it is this problem you are experiencing, and that you have a trunk noise on your Mercedes Classe C 4 linked to a rivet, you will need to check 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 out the bumper to remove the bits of rivet that are running around.