If you detect a noise on your vehicle, you are right to be concerned of it and take it seriously, although it is plausible that nothing major will happen, it is also plausible that it is the signal of a more significant restoration. A noise that appears in the trunk of your Mercedes Classe A is luckily more a indicator of a small adjustment or service, rather than a complex one. To help you in your research, we have chosen to generate this content page to present you with the most likely solutions to your issue. First we will see that this trunk noise on your Mercedes Classe A 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 Classe A : Accumulated dirt that triggers poor closing
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We will therefore begin with a trunk noise on your Mercedes Classe A generated by dirt accumulated on your joints, lock for example. Indeed, it is plausible 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 collects at the trunk gasket. This issue triggers a poor closure of the trunk and a noise that can sound like a crack. To check if you are in this condition, open the trunk of your Mercedes Classe A, examine the condition 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 difference. If this is not the case, continue to the other hypotheses that will probably give a solution. It is plausible however that you have a trunk noise on your Mercedes Classe A that is connected to other origins such as shock absorbers, do not hesitate to have a look to this content page on the noises at the back of a Mercedes Classe A.
Noise in the trunk of my Mercedes Classe A : Loose lock, clicking noise
Second possibility, you may also, over time, knowledge a locking system that became loose. And this is one of the most likely possibilities. Indeed, knowing a trunk noise on your Mercedes Classe A is very often connected to this issue. Several solutions are available to you according to the level of play you have with your lock. The first is that sometimes the offset is minimal and a simple greasing of the mechanism with thick grease is sufficient to resolve the issue. Secondly, it is also plausible 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, just 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 out the trunk of your Mercedes Classe A closes badly, it means that you have moved it too far, replicate the procedure by pushing the striker less.
Noise in my trunk Mercedes Classe A : 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. Indeed, when a plate swap is made, to take off the old one the technique used is to drill the existing rivets in order to put out 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 cause an annoying noise. To check that it is this problem you are experiencing, and that you have a trunk noise on your Mercedes Classe A linked to a rivet, you will need to check that it is in the tailgate open it and stir it to discern 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 disturbing case, you will have to take off the bumper to remove the bits of rivet that are running around.