It is never pleasing to listen to a sound you don’t know about, and which originates from your car. Thus, what if you notice an exhaust noise that remains on your Renault Megane 3? It is highly probable that this is a minor problem, however, before being sure, it is better to accomplish some investigations. Our team has created this to support you solve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Renault Megane 3 and second, if you have a metallic rattling noise on your Renault Megane 3.
Muffled exhaust noise Renault Megane 3
Exhaust pipe with holes Renault Megane 3
Having a muffled sound from its exhaust is not insignificant and can cause over-consumption, or a malfunction of the engine, which could eventually become dirty, for example. If you have an exhaust noise on your Renault Megane 3, it is plausible that it is due to a crack in the exhaust pipe, this is the most typical cause. In order to verify this, position somebody under the running motor car and accelerate to help them locate the source 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 3
The other possibility of being suffering from a muffled exhaust noise on Renault Megane 3 is to have a part of the exhaust system that has dislocated because of vibrations for example. In fact some junctions of the different parts of the pot can loosen after a while 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 Renault Megane 3 to discern the problem region, 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, consider having a look at this content which gives solutions gives solutions about rear end noises on Renault Megane 3.
Metal rattling exhaust sound Renault Megane 3
Damaged exhaust muffler noise Renault Megane 3
If, alternatively, you are subject to an exhaust sound that is more of a metallic type of, it is plausible that one or more parts of your exhaust may be injured. Indeed, it is possible that either your baffles, the catalyst or the silencer are the reason of this noise. To be certain, go under your Renault Megane 3, cold, and tap each of the previously stated parts with a hammer to discern 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 Renault Megane 3, you will either have to find a resale one and do it yourself, or go to your technician.
Metal rattling exhaust noise Renault Megane 3 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Renault Megane 3 may be related to a poor attachment of your exhaust to your car. In fact, after some time, 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 behaves. Backwards there should be some play and be able to move but not too much. The closer you get to the engine, 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.
