It is rarely pleasing to listen to a sound you don’t know about, and which will arrive from your car. Thus, what if you find an exhaust noise that is persistant on your Audi S5? It is highly probable that this is a minor issue, however, before being sure, it is better to operate some checks. Our team has created this to help you solve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Audi S5 and second, if you have a metallic rattling noise on your Audi S5.
Muffled exhaust noise Audi S5
Exhaust pipe with holes Audi S5
Having a muffled sound from its exhaust is not insignificant and can cause over-consumption, or a malfunction of the engine unit, which could after a while become dirty, for example. If you have an exhaust noise on your Audi S5, it is plausible that it is due to a crack in the exhaust pipe, this is the most common cause. To be able to confirm this, position someone under the running motor car and accelerate to help them recognize the starting point 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 changed.
Element dislocated exhaust pipe Audi S5
The other possibility of being suffering from a muffled exhaust noise on Audi S5 is to have a part of the exhaust system 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 Audi S5 to determine the issue location, and tighten or swap 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 content which gives solutions gives solutions about rear end noises on Audi S5.
Metal rattling exhaust sound Audi S5
Damaged exhaust muffler noise Audi S5
If, on the other hand, 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 damaged. Indeed, it is possible that either your baffles, the catalyst or the silencer are the induce of this noise. To make sure, go under your Audi S5, cold, and tap each of the previously stated parts with a hammer to determine 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 swapping it, as well as the silencer. In this case, to stop the exhaust noise on your Audi S5, you will either have to find a used one and do it yourself, or go to your auto mechanic.
Metal rattling exhaust noise Audi S5 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Audi S5 may be connected to a poor attachment of your exhaust to your car. Indeed, after some time, vibrations, the pot fasteners on the car 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 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 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 changed.
