It is never pleasing to listen to a sound you don’t know about, and which originates from your car. So, what if you discover an exhaust noise that is persistant on your Mercedes C class? It is highly possible that this is a minor trouble, however, before being sure, it is better to carry out some checks. Our team has produced this to help you solve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Mercedes C class and second, if you have a metallic rattling noise on your Mercedes C class.
Muffled exhaust noise Mercedes C class
Exhaust pipe with holes Mercedes C class
Having a muffled sound from its exhaust is not insignificant and can cause over-consumption, or a malfunction of the engine unit, which could after a while become dirty, for example. If you have an exhaust noise on your Mercedes C class, it is possible that it is due to a crack in the exhaust pipe, this is the most typical reason. In order to verify this, locate somebody under the running motor automobile and accelerate to help them find the starting point of the hole. Once determined, if it is not too large you can cold seal it with specific metallic mastic type legs. Otherwise, the section will have to be changed.
Element dislocated exhaust pipe Mercedes C class
The other possibility of being suffering from a muffled exhaust noise on Mercedes C class is to have a part of the exhaust device that has dislocated due to vibrations for example. Indeed some junctions of the different parts of the pot can loosen after some time and induce an exhaust gas leak in places not intended for this goal. These fumes will then generate a loud noise. Same technique as above, we go under the Mercedes C class to discover the trouble area, and tighten or change the bolts. If you hear a muffled sound but after examining it doesn’t seem to come from the pot itself, think about having a look at this document which gives answers gives solutions about rear end noises on Mercedes C class.
Metal rattling exhaust sound Mercedes C class
Damaged exhaust muffler noise Mercedes C class
If, alternatively, you are exposed to an exhaust sound that is more of a metallic type of, it is possible that one or more parts of your exhaust may be injured. Indeed, it is conceivable that either your baffles, the catalyst or the silencer are the induce of this noise. To be sure, go under your Mercedes C class, cold, and tap each of the previously stated parts with a hammer to discover the origin of the noise. You should move things between things in the problematic part, if they are baffles, you can try to push the section a little bit to try to block them and thus 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 stop the exhaust noise on your Mercedes C class, you will either have to find a used one and do it yourself, or go to your technician.
Metal rattling exhaust noise Mercedes C class : Silentblock, loose pot
Finally, a metallic exhaust noise on your Mercedes C class may be related to a poor attachment of your exhaust to your automobile. Indeed, over time, vibrations, the pot fasteners on the automobile chassis can come off. In this case, you need to verify, when cold, that the pot holds well, to try to get it to move in different directions and watch how it responds. Backwards there should be some play and be able to move but not too much. The closer you get to the engine motor, the more fixed it should be. Visually verify the fasteners for which you have doubts. Finally, it is possible that a silentbloc may have died . In this case it will have to be changed.
