If you encounter a noise on your car, you are right to get worried about that and take it seriously, although it is possible that nothing significant will result from it, it is also imaginable that it is the first indication of a more significant service. A noise that appears on a door of your Mercedes Classe B 3 fortunately signifies a slight change / repair, rather than a complicated repair. In order to support you in your procedure, we have decided to publish this document to provide you the most likely solutions to your problem. First of all, we will examine the different origin noises of air in the door of your Mercedes Classe B 3, then hinge noises and finally at other possible possibilities.door-noise-mercedes-classe-b-3

Door air noise Mercedes Classe B 3

Plastic air cache noise

If you experience air noise on the doors of your Mercedes Classe B 3, it is possible that it is linked to some plastic covers on the interior walls of your door. These can come loose, hole, fall and thus produce an air intake that will obviously make a distinctive and disagreeable air noise in the passenger compartment. To verify that you don’t have this problem on your Mercedes Classe B 3, open your doors and examine the sides of them carefully, see if all the covers are properly placed.

Air noise seal

Air noise at the doors of your Mercedes Classe B 3 can also be related to a gasketfailing or overused. Indeed, the door seal, in addition to have a protective 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 generate a perfect seal between the door and the car body. To verify its state, there are two options, 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 mechanic to have your seal exchanged and the door noise on your Mercedes Classe B 3 adjusted.

Hinge noise door hinge Mercedes Classe B 3

Door noise Mercedes Classe B 3, dry hinge

It is possible, in accordance with the kind of of sound you know, that your hinge is at the origin of them. If this is the case, you will have to verify it by opening your door and checking that the door noise on your Mercedes Classe B 3 comes from a hinge that is too dry. To solve this problem, first try to grease the hinge, in most cases this is enough to solve your problem.

Noise porte Mercedes Classe B 3, worn hinge

If you have followed our first advice regarding your hinge, but the problem still lasts, it is possible that your hinge is worn out and needs a change. In this circumstance, verify that despite the lubrication it still generates a lot of noise when opening and closing. You should feel a “clack” and restraint in the movement. If this Mercedes Classe B 3 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 Mercedes Classe B 3, we can first think of the window lift, in fact, after the hinge, it is the second complex mechanism of the door. If weakened, it can create vibration or even air noise. To verify its state, remove the door trim and check that no parts are broken.

unscrewed speaker

Finally, one of the last possible scenarios for Mercedes Classe B 3 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 fix 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 auto mechanic who can test your car in more detail to discover what the particular problem is that you know.