If you discover a noise on your car, you are right to get worried about it and take it seriously, although it is possible that nothing serious will result from it, it is also possible that it is the first sign of a more significant repair. A noise that shows up on a door of your BMW 3 Series fortunately signifies a slight modification / repair, rather than a difficult repair. In order to support you in your approach, we have decided to produce this article to provide you the most likely possibilities to your problem. 1st, we will examine the different source noises of air in the door of your BMW 3 Series, then hinge noises and finally at other possible possibilities.door-noise-bmw-3-series

Door air noise BMW 3 Series

Plastic air cache noise

If you experience air noise on the doors of your BMW 3 Series, 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 create a distinctive and disagreeable air noise in the passenger compartment. To verify that you don’t have this issue on your BMW 3 Series, open your doors and check the sides of them carefully, see if all the covers are properly positioned.

Air noise seal

Air noise at the doors of your BMW 3 Series can also be connected to a gasketfailing or overused. Indeed, the door seal, in addition to have a defensive role 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 create a perfect seal between the door and the car body. To check its state, there are two solutions, 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 enters. If you are in this case, go to your auto technician to have your seal replaced and the door noise on your BMW 3 Series adjusted.

Hinge noise door hinge BMW 3 Series

Door noise BMW 3 Series, dry hinge

It is possible, depending on the kind of of sound you experience, 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 BMW 3 Series comes from a hinge that is too dry. To resolve this problem, first try to grease the hinge, in most cases this is enough to resolve your issue.

Noise porte BMW 3 Series, worn hinge

If you have followed our first advice relating to your hinge, but the issue still remains, it is plausible that your hinge is worn out and needs a swap. In this circumstance, check that despite the lubrication it still creates a lot of noise when opening and closing. You should feel a “clack” and restraint in the movement. If this BMW 3 Series noise is your problem, change your hinge.

Other possibilities

Internal part of the broken window regulator

In the other possibilities that can generate door noise on BMW 3 Series, we can first think of the window lift, indeed, after the hinge, it is the second complex system of the door. If weakened, it can create vibration or even air noise. To check its state, remove the door trim and check that no parts are broken.

unscrewed speaker

Finally, one of the last possible alternatives for BMW 3 Series door noise would come from a from your vehicle’s speakers. Indeed, they take place in the door and can, over time, loosen and generate a serious 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 vehicle to your auto technician who can test your car in more detail to discover what the particular issue is that you know.