Do you listen to a metallic noise on your BMW 3 Series once you drive? We can understand that this is not pleasurable and that you have questions. Discovering such a noise is not always a good signal, but it may also be nothing serious. To support you remedy this problem, our team has decided to create this article content to help you in this research. In order to conduct this research as accurately as possible, we will first check out the conceivable sources of metallic noise in the front of your vehicle, and then, if the metallic noise comes from the rear of your vehicle.
Metal noise BMW 3 Series coming from the front end of the vehicle
I listen to a metal rattling noise coming from wheels
- Metallic noise caused by your bearing
- Metalic noise coming from brake
- Stabilizer bar worn
One of the possible causes of metal noise manifestations on your BMW 3 Series, may be that one of your bearing is tired, it will commonly make a loud noise that increase when stressed (turns faster and faster). So please remember to verify by taking speed (neutral gear and window open to concentrate only to noise of the wheels) that the noise is well established here, if this is the case change it or them fairly quickly. If, on the other hand, this noise only manifests itself with an engaged speed, examine this guide on loud noise on BMW 3 Series, you will most likely find a remedy to your problem.
If you discern a metalic noise on BMW 3 Series and you have the feeling that it comes from your front wheels, it is highly conceivable that it is your pads or discs that are the trigger. Indeed, a disc or a set of dead plates will create a strong metallic friction noise that you will inevitably feel. To verify this, put your vehicle on safety stand, and verify the state of your discs and pads by taking out the wheel. If they are involved, change them as soon as possible , otherwise you will no longer be able to brake. If you feel a metallic noise from your vehicle, and you want explications about it, go through this article for more information about brake noises on xxx.
If it is rather when you are turning, passing over a bump or sidewalk that you listen to a metallic noise on your BMW 3 Series, then your rods may be worn. Whether it is the steering or the stabilizer bar, their wear will cause a metallic snap when they hit or change direction. To verify this, put yourself under your vehicle, without the wheels, and move your rods, if they only oppose very little force it is likely that they will have to be changed. If this is your case, we suggest that you consult this article content for a complete guide about steering noises on BMW 3 Series.
Other sources
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- Engine silentblock
- Dead gearbox, or broken pinion
A little like worn stabilizer bar, if your engine silent blocks are weakened, you will feel as you pass over damaged roads or sidewalks, loud metallic noises on your BMW 3 Series. Once screwed up, they will no longer accomplish their role as shock absorbers and, with each impact, or violent acceleration, a noise will occur. Therefore, bear in mind to verify their status and change them if necessary. Feel free to browse this article content which is a complete file about strut mounts noises on BMW 3 Series, how to verify their state and replace them.
Finally, the last common trigger of metallic noise on BMW 3 Series. It’s because your transmission system is the source. It is conceivable, either because of improper use of the gearbox or because of excessive wear, that some gears in your gearbox have broken and are wandering around in it. They will then develop a continuous metal rattling noise. That you shouldn’t feel in neutral. If this is your case, we suggest that you read this detailed guide on the sources of steering noises on BMW 3 Series.
Metallic noise BMW 3 Series coming from the rear end of the vehicle
Exhaust pipe
If, on the other hand, you experience an exhaust noise that is more of a metallic type, it is conceivable that one or more parts of your exhaust may be damaged. Indeed, it is conceivable that either the catalyst or the silencer may be the trigger of this noise. To be sure, go under the vehicle, cold, and knock each of the previously stated elements with a hammer to determine the source of the noise. You should notice things moving in the problematic part, if it’s the exhaust baffles, you can try to hammer in the section a little to try to block them and limit their movements. If it is a dead catalyst, it will be required to consider swapping it, as well as the silencer. In this case, to eliminate the metallic noise on your BMW 3 Series, you will either have to find a second hand one and do it yourself, or go to your mechanic.
Noise from wheels
- Bearings
- Brake pads or discs
As for the bearings of your vehicle, it is conceivable that with wear they are at the origin of your metallic noises on your BMW 3 Series. Go a little further up in the content page where you will find information of the solution already exposed for the front part of the vehicle.
Finally, if the noise originates from your discs brakes or pads, you should refer to the part in question in the first section of this manual.
