Do you perceive a metallic noise on your Mercedes Classe M when you drive? We can understand that this is not pleasant and that you are wandering. Experiencing such a noise is not always a good indication, but it may also be nothing major. To help you solve this trouble, we have decided to prepare this content page to assist you in this investigation. In order to perform this research as efficiently as possible, we will first check out the conceivable sources of metallic noise in the front of your car, and then, if the metallic noise comes from the rear of your car.
Metal noise Mercedes Classe M coming from the front end of the car
I listen a metal rattling noise coming from wheels
- Metallic noise caused by your bearing
- Metalic noise coming from brake
- Stabilizer bar worn
One of the probable triggers of metal noise symptoms on your Mercedes Classe M, may be that one of your bearing is tired, it will frequently make a loud noise that goes up when stressed (turns faster and faster). So remember to examine by taking speed (neutral gear and window open to listen only to noise of the wheels) that the noise is well based here, if this is the case change it or them promptly. If, on the other hand, this noise only manifests itself with an engaged speed, browse this article on loud noise on Mercedes Classe M, you will most likely find a solution to your trouble.
If you hear a metalic noise on Mercedes Classe M 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 reason. Indeed, a disc or a set of dead plates will generate a strong metallic rubbing noise that you will inevitably feel. To examine this, put your car on safety stand, and examine the condition of your discs and pads by taking out the wheel. If they are involved, change them fairly quickly , otherwise you will no longer be able to brake. If you experience a metallic noise from your car, and you want informations about it, browse this guide 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 a metallic noise on your Mercedes Classe M, then your rods may be worn. Whether it is the steering or the stabilizer bar, their wear will trigger a metallic snap when they hit or change direction. To examine this, put yourself under your car, without the wheels, and move your rods, if they only oppose very little force it is likely that they will have to be replaced. If this is your case, we recommend that you have a look at this content page for a complete guide about steering noises on Mercedes Classe M.
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 damaged, you will feel as you pass over damaged roads or sidewalks, loud metallic noises on your Mercedes Classe M. Once screwed up, they will no longer fulfill their function as shock absorbers and, with each impact, or violent acceleration, a noise will appear. Therefore, remember to examine their status and change them if required. Feel free to read this content page which is a complete file about strut mounts noises on Mercedes Classe M, how to examine their condition and change them.
Finally, the last common reason of metallic noise on Mercedes Classe M. It’s because your transmission system is the origin. 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 generate a continuous metal rattling sound. That you shouldn’t feel in neutral. If this is your case, we recommend that you look at this detailed guide on the sources of steering noises on Mercedes Classe M.
Metallic noise Mercedes Classe M coming from the rear end of the vehicle
Exhaust pipe
If, on the other hand, you discern 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 reason of this sound. To be sure, go under the car, cold, and knock each of the previously stated elements with a hammer to identify the origin 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 necessary to consider replacing it, as well as the silencer. In this case, to eliminate the metallic noise on your Mercedes Classe M, 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 car, it is conceivable that with wear they are at the origin of your metallic noises on your Mercedes Classe M. Go a little further up in the content where you will find information of the solution already exposed for the front part of the car.
Finally, if the noise comes from your discs brakes or pads, you should refer to the part in question in the first section of this manual.
