If you notice a noise on your car, you are right to get worried about that and take it seriously, although it is possible that nothing serious will come from it, it is also conceivable that it is the first indication of a more important service. A noise that appears on a door of your smart forfour fortunately reveals a slight adjustment / repair, rather than a complicated repair. In order to support you in your approach, we have decided to publish this document to provide you the most likely solutions to your issue. 1st, we will take a look at the different origin noises of air in the door of your smart forfour, then hinge noises and finally at other possible possibilities.
Door air noise smart forfour
Plastic air cache noise
If you encounter air noise on the doors of your smart forfour, it is possible that it is linked to some plastic covers on the inside sides of your door. These can come loose, hole, fall and thus generate an air intake that will inevitably generate a significant and annoying air noise in the passenger compartment. To confirm that you don’t have this problem on your smart forfour, open your doors and check the sides of them carefully, see if all the covers are properly installed.
Air noise seal
Air noise at the doors of your smart forfour can also be related to a gasketfailing or overused. Certainly, the door seal, in addition to have a defensive purpose against moisture infiltration, also has a protective purpose for air inlets in the passenger compartment. When it is worn, it will not settle and therefore no longer generate a perfect seal between the door and the car body. To check its condition, there are two methods, first, visually check the state of the seal and for the second test, install someone inside the passenger compartment and door by door, car closed, sprayed with water the seals to see if water goes in. If you are in this case, go to your technician to have your seal changed and the door noise on your smart forfour adjusted.
Hinge noise door hinge smart forfour
Door noise smart forfour, dry hinge
It is also possible, based on the type of sound you know, that your hinge is at the origin of them. If this is the case, you will have to check it by opening your door and checking that the door noise on your smart forfour comes from a hinge that is too dry. To solve this issue, first try to grease the hinge, in most cases this is enough to fix your problem.
Noise porte smart forfour, worn hinge
If you have followed our primary advice regarding your hinge, but the problem still persists, it is plausible that your hinge is worn out and requires a swap. In this case, check that despite the lubrication it still makes a lot of noise when opening and closing. You should feel a “clack” and restraint in the movement. If this smart forfour noise is your problem, change your hinge.
Other possibilities
Internal part of the damaged window regulator
In the other possibilities that can create door noise on smart forfour, we can first think of the window lift, in fact, after the hinge, it is the second complex mechanism of the door. If damaged, it can cause vibration or even air noise. To check its condition, remove the door trim and check that no parts are broken.
unscrewed speaker
Finally, one of the last possible alternatives for smart forfour door noise would come from a from your vehicle’s audio speakers. In fact, they take place in the door and can, over time, loosen and generate a significant vibration and risk damaging themselves if you do not attach them again. Same procedure, you will have to dismantle the door trim to check its correct positioning.
If you can’t find solutions among this article, don’t hesitate to take your car to your technician who can look at your car in more detail to discover what the particular problem is that you know.
