If you find out a noise on your car, you are right to be aware of it and take it seriously, although it is plausible that nothing serious will happen, it is also plausible that it is the signal of a more critical fix. A noise that appears in the trunk of your smart forfour is fortunately more a signal of a small correction or service, rather than a difficult one. To help you in your research, we have decided 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 smart forfour can come from built up 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 smart forfour : Built up dirt that triggers poor closing
>
We will therefore start with a trunk noise on your smart forfour 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 accumulates at the trunk gasket. This problem 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 smart forfour, examine 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 plausible however that you have a trunk noise on your smart forfour 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 smart forfour.
Noise in the trunk of my smart forfour : Loose lock, clicking noise
Second probability, you may also, over time, knowledge a locking system that has taken up some play. And this is one of the most potential alternatives. Indeed, knowing a trunk noise on your smart forfour 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 sometimes the offset is minimal and a simple greasing of the mechanism with thick grease is appropriate to resolve 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 circumstance 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. Remember to verify the centering of the striker in connection with the trunk lock. If after checking out the trunk of your smart forfour closes badly, it means that you have moved it too far, repeat the process by pushing the striker less.
Noise in my trunk smart forfour : 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 at the rear of your plate. Indeed, when a plate swap is done, to remove 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 trigger an annoying noise. To check that it is this problem you are experiencing, and that you have a trunk noise on your smart forfour 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 case, 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 disturbing case, you will have to remove the bumper to remove the bits of rivet that are running around.
