What can be more frustrating than experiencing a consistent noise when driving your car, whether it’s because you want to listen to your favorite radio or chat with your passengers, experiencing an air noise on Mercedes Classe A 4 is always annoying. It is with this in mind that we decided to write this article. In fact, our team wanted to give you the keys to resolve this persistent problem that can become frustrating in the long term. First we will check out the air noise on Mercedes Classe A 4 coming from the cabin, then at the air noise that manifests itself during acceleration, and finally at the air noise on Mercedes Classe A 4 that is coming from doors.
I acknowledge an air noise in the cabin
if you note of an air noise on your Mercedes Classe A 4 and it is located in your cabin, it may be related to a fan that has shifted or is starting to dry . In any case, you will have to look at the fan in question to visually verify its state. The easiest technique is to open the ventilation circuit, and rotate the circuit while you are watching its proper performance, you can try to grease it to limit this noise, but it is very likely that the final remedy is to replace it.
If you haven’t found the answers to your questions in this section but your air noise on Mercedes Classe A 4 comes from your cabin, read both articles, firstly cabin noises on Mercedes Classe A 4 and heater fan noises on Mercedes Classe A 4 can surely help you find the trigger.
I acknowledge an air noise when I accelerate with my Mercedes Classe A 4
Air noise Mercedes Classe A 4 linked to an air intake hose
The first of the two possibilities that can develop an air noise on Mercedes Classe A 4 when accelerating and the less severe. Is that you have one of your air intake hoses that has been punctured or cracked. This failure will contribute to a large and unexpected air intake . This will express itself in a loud air noise at acceleration when the air intake is running at full throttle. So verify the state of all your hoses, don’t hesitate to ask someone to accelerate while you check out the engine block to help you establish the area of origin of air noise on Mercedes Classe A 4.
Air noise Mercedes Classe A 4 linked to your turbo
One of the other possible origins of your air noise on Mercedes Classe A 4 is your turbo. In fact, a damaged turbo will release a sound close to an air or breath noise when it is switched on. It will be used during your acceleration phases. You may also feel a power loss that would indicate the failure of your turbo. It is also conceivable that a lack of lubrication is the trigger of this noise. Have it verified, and replace it if necessary, if you don’t want to get your engine dirty. If your air noise on Mercedes Classe A 4 manifests itself well when you accelerate at any speed, but you want more information about it or you still haven’t found the trigger, read both pages about turbo noises on Mercedes Classe A 4 and noise when accelerating on Mercedes Classe A 4 for more information.
I acknowledge an air noise on Mercedes Classe A 4 at the doors
Air noise Mercedes Classe A 4 linked to plastic door covers
If you experience air noise on the doors of your Mercedes Classe A 4, it is possible that it is linked to some plastic covers on the inside side panels of your door. These can come loose, hole, fall and thus create an air intake that will obviously create a significant and disagreeable air noise in the cabin. To ensure that you don’t have this problem on your Mercedes Classe A 4, open your doors and check the sides of them carefully, see if all the covers are properly installed.
Air noise Mercedes Classe A 4 linked to door seals
Air noise at the doors of your Mercedes Classe A 4 can also be linked to a gasketfailing or overused. In fact, the door seal, in addition to have a protective role against moisture infiltration, also has a protective role for air inlets in the passenger compartment. When it is worn, it will not settle and therefore no longer give a perfect seal between the door and the car body. To verify its state, there are two techniques, first, visually verify 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 exchanged and the air noises on your Mercedes Classe A 4 wiped out. If your air noise on Mercedes Classe A 4 is not eliminated despite reading this part, that it is present at your doors, we encourage you to read this full guide on door noises on Mercedes Classe A 4 which should allow you to find the solution to your problem.
