It is never pleasant to notice a sound you don’t know about, and which originates from your car. So, what if you discover an exhaust noise that continues on your Mercedes A class? It is highly probable that this is a minor issue, however, before being sure, it is better to operate some investigations. Our team has produced this to support you resolve it. First, we will look at the possible causes if you have a muffled exhaust sound on your Mercedes A class and second, if you have a metallic rattling noise on your Mercedes A class.
Muffled exhaust noise Mercedes A class
Exhaust pipe with holes Mercedes A class
Having a muffled sound from its exhaust is not insignificant and can end in over-consumption, or a malfunction of the car engine, which could finally become dirty, for example. If you have an exhaust noise on your Mercedes A class, it is plausible that it is due to a crack in the exhaust pipe, this is the most common explanation. To be able to confirm this, situate someone under the running motor automobile and accelerate to help them determine the starting point 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 replaced.
Element dislocated exhaust pipe Mercedes A class
The other possibility of being subjected to a muffled exhaust noise on Mercedes A class 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 after some time and generate an exhaust gas leak in places not intended for this goal. These fumes will then produce a loud noise. Same technique as above, we go under the Mercedes A class to identify the issue place, and tighten or replace the bolts. If you hear a muffled sound but after checking it doesn’t seem to come from the pot itself, consider looking at this document which gives solutions gives solutions about rear end noises on Mercedes A class.
Metal rattling exhaust sound Mercedes A class
Damaged exhaust muffler noise Mercedes A class
If, alternatively, you are exposed to an exhaust sound that is more of a metallic sort of, it is plausible that one or more parts of your exhaust may be destroyed. Indeed, it is plausible that either your baffles, the catalyst or the silencer are the cause of this noise. To confirm, go under your Mercedes A class, cold, and tap each of the previously stated parts with a hammer to identify 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 changing it, as well as the silencer. In this case, to stop the exhaust noise on your Mercedes A class, you will either have to find a used one and do it yourself, or go to your auto technician.
Metal rattling exhaust noise Mercedes A class : Silentblock, loose pot
Finally, a metallic exhaust noise on your Mercedes A class may be linked to a poor attachment of your exhaust to your automobile. Indeed, over the years, 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 behaves. 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 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 replaced.
