It is never pleasant to find out a sound you don’t know about, and which will arrive from your car. So, what if you discover an exhaust noise that persists on your Renault Megane? It is highly possible that this is a small issue, however, before being sure, it is better to accomplish some inspections. Our team has made this to support you resolve it. First, we will look at the possible causes if you have a muffled exhaust sound on your Renault Megane and second, if you have a metallic rattling noise on your Renault Megane.
Muffled exhaust noise Renault Megane
Exhaust pipe with holes Renault Megane
Having a muffled sound from its exhaust is not insignificant and can cause over-consumption, or a malfunction of the car engine, which could finally become dirty, for example. If you have an exhaust noise on your Renault Megane, it is possible that it is due to a hole in the exhaust pipe, this is the most typical cause. To be able to validate this, locate a friend or relative under the running motor car and accelerate to help them identify the starting point of the hole. Once found, 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 Renault Megane
The other possibility of being the subject of a muffled exhaust noise on Renault Megane is to have a part of the exhaust unit that has dislocated caused by 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 goal. These fumes will then generate a loud noise. Same technique as above, we go under the Renault Megane to discover the issue area, and tighten or swap the bolts. If you hear a muffled sound but after examining it doesn’t seem to come from the pot itself, consider having a look at this content page which gives answers gives solutions about rear end noises on Renault Megane.
Metal rattling exhaust sound Renault Megane
Damaged exhaust muffler noise Renault Megane
If, on the other hand, 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 weakened. Indeed, it is possible that either your baffles, the catalyst or the silencer are the induce of this noise. To be sure, go under your Renault Megane, cold, and tap each of the previously stated parts with a hammer to discover 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 changing it, as well as the silencer. In this case, to stop the exhaust noise on your Renault Megane, you will either have to find a second hand one and do it yourself, or go to your auto mechanic.
Metal rattling exhaust noise Renault Megane : Silentblock, loose pot
Finally, a metallic exhaust noise on your Renault Megane may be in connection with a poor attachment of your exhaust to your car. Indeed, over time, vibrations, the pot fasteners on the car chassis can come off. In this case, you need to examine, 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 motor, the more fixed it should be. Visually examine 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.
