If you detect a noise on your car, you are right to be careful of it and take it seriously, although it is conceivable that nothing significant will results, it is also conceivable that it is the symptom of a more significant restoration. A noise that shows up in the trunk of your Mercedes Classe B is thankfully more a sign of a small correction or repair, rather than a complex one. To support you in your research, we have chosen to write 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 B 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.
Noise in the trunk Mercedes Classe B : Accumulated dirt that triggers poor closing
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We will therefore begin with a trunk noise on your Mercedes Classe B caused by dirt accumulated on your joints, lock for example. Indeed, 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 collects at the trunk gasket. This problem triggers a poor closure of the trunk and a noise that can sound like a crack. To examine if you are in this circumstance, open the trunk of your Mercedes Classe B, verify the condition of the gasket that runs 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 difference. 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 B that is related to other origins such as shock absorbers, do not hesitate to read this content on the noises at the back of a Mercedes Classe B.
Noise in the trunk of my Mercedes Classe B : Loose lock, clicking noise
Second possibility, you may also, over time, be the victim of a locking system that has taken up some play. And this is one of the most likely possibilities. Indeed, knowing a trunk noise on your Mercedes Classe B is very often related to this problem. Some solutions are available to you depending on 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 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 take off the cover that enables access to the lock (inside the trunk). Then, using torx screws, you unscrew the striker attached to the threshold, just push it back a little towards the inside of the trunk and tighten it again. You should examine the centering of the striker in connection with the trunk lock. If after checking the trunk of your Mercedes Classe B closes badly, it means that you have moved it too far, repeat the operation by pushing the striker less.
Noise in my trunk Mercedes Classe B : Rivet following plate change in the trunk/ bumper
Finally, one of the last possibilities. It is that following a license plate change you were unlucky and that a piece of rivet fell at the rear of your plate. Indeed, when a plate replacement is made, to take off the old one the process used is to drill the existing rivets to be able to put out 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 provoke an annoying noise. To check that it is this problem you are experiencing, and that you have a trunk noise on your Mercedes Classe B linked to a rivet, you will need to examine that it is in the tailgate open it and stir it to define 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 embarrassing situation, you will have to take off the bumper to remove the bits of rivet that are running around.
