It is never pleasant to perceive a sound you don’t know about, and which comes from your car. So, what if you detect an exhaust noise that is persistant on your Mercedes Classe C 4? It is highly probable that this is a minor issue, however, before being sure, it is better to conduct some investigations. Our team has made this to help you solve it. First, we will look at the possible causes if you have a muffled exhaust sound on your Mercedes Classe C 4 and second, if you have a metallic rattling noise on your Mercedes Classe C 4.
Muffled exhaust noise Mercedes Classe C 4
Exhaust pipe with holes Mercedes Classe C 4
Having a muffled sound from its exhaust is not insignificant and can lead to over-consumption, or a malfunction of the engine, which could in time become dirty, for example. If you have an exhaust noise on your Mercedes Classe C 4, it is possible that it is due to a crack in the exhaust pipe, this is the most typical reason. To be able to confirm this, position someone under the running motor automobile and accelerate to help them recognize the source of the hole. Once located, if it is not too large you can cold seal it with specific metallic mastic type legs. Otherwise, the section will have to be swapped.
Element dislocated exhaust pipe Mercedes Classe C 4
The other possibility of being subjected to a muffled exhaust noise on Mercedes Classe C 4 is to have a part of the exhaust system that has dislocated due to vibrations for example. Indeed some junctions of the different parts of the pot can loosen with time and induce an exhaust gas leak in places not intended for this purpose. These fumes will then generate a loud noise. Same technique as above, we go under the Mercedes Classe C 4 to define the issue location, and tighten or replace the bolts. If you hear a muffled sound but after verifying it doesn’t seem to come from the pot itself, think about looking at this document which gives solutions gives solutions about rear end noises on Mercedes Classe C 4.
Metal rattling exhaust sound Mercedes Classe C 4
Damaged exhaust muffler noise Mercedes Classe C 4
If, alternatively, you are subject to an exhaust sound that is more of a metallic sort of, it is possible that one or more parts of your exhaust may be injured. Indeed, it is plausible that either your baffles, the catalyst or the silencer are the reason of this noise. To make sure, go under your Mercedes Classe C 4, cold, and tap each of the previously stated parts with a hammer to define 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 out of date 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 Classe C 4, you will either have to find a used one and do it yourself, or go to your auto mechanic.
Metal rattling exhaust noise Mercedes Classe C 4 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Mercedes Classe C 4 may be connected to a poor attachment of your exhaust to your automobile. Indeed, as time passes, vibrations, the pot fasteners on the automobile chassis can come off. In this case, you need to check, 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 unit, the more fixed it should be. Visually check 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 swapped.
