What could possibly be more frustrating than listening a consistent noise when driving your car, whether it’s because you want to listen your favorite radio or chat with your passengers, listening a wind noise on BMW 4 Series is always distressing. It is with this in mind that we desired to prepare this article. In fact, our team wanted to give you the keys to eliminate this persistent trouble that can become frustrating in the long term. First we will check out the wind noise on BMW 4 Series based on the cabin, then at the air noise that manifests itself during acceleration, and finally at the wind noise on BMW 4 Series that is coming from doors.wind-noise-bmw-4-series

I listen to a wind noise in the cabin

if you detect of a wind noise on your BMW 4 Series and it is situated in your cabin, it may be connected to a fan that has shifted or is starting to dry . No matter the reason, you will need to look at the fan in question to visually check its state. The easiest way 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 solution is to change it.
If you haven’t found the answers to your questions in this section but your wind noise on BMW 4 Series comes from your cabin, read both articles, firstly cabin noises on BMW 4 Series and heater fan noises on BMW 4 Series can surely help you find the cause.

I listen to a wind noise when I accelerate with my BMW 4 Series

Wind noise BMW 4 Series linked to an air intake hose

The first of the two alternatives that can generate a wind noise on BMW 4 Series 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 cause a large and unexpected air intake . This will show itself in a loud wind noise at acceleration when the air intake is running at full throttle. So check the state of all your hoses, don’t hesitate to ask someone to accelerate while you look at the engine block to help you discern the area of origin of wind noise on BMW 4 Series.

Wind noise BMW 4 Series connected to your turbo

One of the other possible sources of your wind noise on BMW 4 Series is your turbo. In fact, a damaged turbo will emit a sound close to a wind or breath noise when it is switched on. It will be used during your acceleration phases. You may also experience a power loss that would indicate the failure of your turbo. It is also possible that a lack of lubrication is the cause of this noise. Have it examined, and change it if necessary, if you don’t want to get your engine dirty. If your wind noise on BMW 4 Series manifests itself well when you accelerate at any speed, but you want more info about it or you still haven’t found the cause, browse both pages about turbo noises on BMW 4 Series and noise when accelerating on BMW 4 Series for more info.

I listen to a wind noise on BMW 4 Series at the doors

Wind noise BMW 4 Series connected to plastic door covers

If you experience wind noise on the doors of your BMW 4 Series, it is possible that it is caused by some plastic covers on the inside sides of your door. These can come loose, hole, fall and thus develop an air intake that will obviously generate a significant and disagreeable wind noise in the cabin. To ensure that you don’t have this trouble on your BMW 4 Series, open your doors and check the sides of them carefully, see if all the covers are properly placed.

Wind noise BMW 4 Series connected to door seals

Wind noise at the doors of your BMW 4 Series can also be connected to a gasketfailing or overused. In fact, the door seal, in addition to have a protecting 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 generate a perfect seal between the door and the car body. To check 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 goes in. If you are in this case, go to your technician to have your seal changed and the wind noises on your BMW 4 Series eliminated. If your wind noise on BMW 4 Series is not resolved despite reading this part, that it is present at your doors, we suggest you to have a look at this complete article on door noises on BMW 4 Series which should allow you to find the solution to your trouble.