If you find out about a noise on your car, you are right to worry about it and take it seriously, although it is possible that nothing severe will come from it, it is also possible that it is the first indication of a more important repair. A noise that appears on a door of your Mercedes Benz CLA Class fortunately indicates a slight correction / repair, instead of a difficult repair. In order to help you in your procedure, we have chosen to write this content to provide you the most likely possibilities to your problem. Primary, we will look at the different source noises of air in the door of your Mercedes Benz CLA Class, then hinge noises and finally at other possible possibilities.door-noise-mercedes-benz-cla-class

Door air noise Mercedes Benz CLA Class

Plastic air cache noise

If you encounter air noise on the doors of your Mercedes Benz CLA Class, 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 develop an air intake that will inevitably generate a significant and annoying air noise in the passenger compartment. To verify that you don’t have this trouble on your Mercedes Benz CLA Class, 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 Mercedes Benz CLA Class can also be connected to a gasketfailing or overused. Indeed, the door seal, in addition to have a protective 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 create a perfect seal between the door and the car body. To examine its state, there are two ways, 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 auto mechanic to have your seal replaced and the door noise on your Mercedes Benz CLA Class adjusted.

Hinge noise door hinge Mercedes Benz CLA Class

Door noise Mercedes Benz CLA Class, dry hinge

It is also possible, depending 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 examine it by opening your door and checking that the door noise on your Mercedes Benz CLA Class comes from a hinge that is too dry. To correct this problem, first try to grease the hinge, in most cases this is sufficient to solve your trouble.

Noise porte Mercedes Benz CLA Class, worn hinge

If you have followed our first advice relating to your hinge, but the trouble still lasts, it is possible that your hinge is worn out and requires a change. In this circumstance, examine 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 Mercedes Benz CLA Class 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 Benz CLA Class, we can first think of the window lift, in fact, after the hinge, it is the second complex system of the door. If weakened, it can provoke vibration or even air noise. To examine its state, remove the door trim and check that no parts are broken.

unscrewed speaker

Finally, one of the last possible possibilities for Mercedes Benz CLA Class 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 significant vibration and risk damaging themselves if you do not attach them again. Same technique, 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 mechanic who can check your car in more detail to discover what the particular trouble is that you know.