If you pay attention to a noise on your car, you are right to be aware of it and take it seriously, although it is plausible that nothing critical will result, it is also plausible that it is the indication of a more critical restoration. A noise that appears in the trunk of your Bmw Serie 4 F33 is thankfully more a sign of a small correction or restoration, rather than a complex one. To support you in your research, we have chosen to produce this article to present you with the most likely solutions to your issue. First we will see that this trunk noise on your Bmw Serie 4 F33 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 Bmw Serie 4 F33 : Built up dirt that triggers poor closing
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We will therefore start with a trunk noise on your Bmw Serie 4 F33 generated by dirt accumulated on your joints, lock for example. Indeed, it is plausible 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 collects at the trunk gasket. This issue triggers a poor closure of the trunk and a noise that can sound like a crack. To verify if you are in this circumstance, open the trunk of your Bmw Serie 4 F33, 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 plausible however that you have a trunk noise on your Bmw Serie 4 F33 that is related to other sources such as shock absorbers, do not hesitate to have a look to this article on the noises at the back of a Bmw Serie 4 F33.
Noise in the trunk of my Bmw Serie 4 F33 : Loose lock, clicking noise
Second possibility, you may also, over time, encounter a locking system that became loose. And this is one of the most likely alternatives. Indeed, knowing a trunk noise on your Bmw Serie 4 F33 is very frequently related to this issue. Several solutions are available to you according 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 system with thick grease is enough to fix the trouble. 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 take off 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. You should verify the centering of the striker in regards to the trunk lock. If after examining the trunk of your Bmw Serie 4 F33 closes badly, it means that you have moved it too far, duplicate the operation by pushing the striker less.
Noise in my trunk Bmw Serie 4 F33 : 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. Indeed, when a plate replacement is done, to remove the old one the strategy used is to drill the existing rivets in order to released 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 Bmw Serie 4 F33 linked to a rivet, you will need to verify 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 remove the bumper to remove the bits of rivet that are running around.
