It is never pleasant to perceive a sound you don’t know about, and which results from your car. Thus, what if you discover an exhaust noise that continues on your Renault Megane 4? It is highly probable that this is a small problem, however, before being sure, it is better to carry out some investigations. Our team has made this to help you resolve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Renault Megane 4 and second, if you have a metallic rattling noise on your Renault Megane 4.
Muffled exhaust noise Renault Megane 4
Exhaust pipe with holes Renault Megane 4
Having a muffled sound from its exhaust is not insignificant and can lead to over-consumption, or a malfunction of the engine unit, which could finally become dirty, for example. If you have an exhaust noise on your Renault Megane 4, it is possible that it is due to a hole in the exhaust pipe, this is the most typical reason. In order to validate this, position somebody under the running motor car and accelerate to help them discover the source of the hole. Once discovered, 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 Renault Megane 4
The other possibility of being subjected to a muffled exhaust noise on Renault Megane 4 is to have a part of the exhaust device that has dislocated resulting from vibrations for example. Indeed some junctions of the different parts of the pot can loosen after a while and cause 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 Renault Megane 4 to define the problem place, and tighten or replace the bolts. If you hear a muffled sound but after examining it doesn’t seem to come from the pot itself, think about taking a look at this article which gives answers gives solutions about rear end noises on Renault Megane 4.
Metal rattling exhaust sound Renault Megane 4
Damaged exhaust muffler noise Renault Megane 4
If, alternatively, you are subject 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 damaged. Indeed, it is plausible that either your baffles, the catalyst or the silencer are the induce of this noise. To be sure, go under your Renault Megane 4, cold, and tap each of the previously stated parts with a hammer to define the source 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 Renault Megane 4, you will either have to find a resale one and do it yourself, or go to your technician.
Metal rattling exhaust noise Renault Megane 4 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Renault Megane 4 may be in connection with a poor attachment of your exhaust to your car. Indeed, as time passes, vibrations, the pot fasteners on the car 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 reacts. 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 swapped.
