It is rarely pleasing to find out a sound you don’t know about, and which comes from your car. So, what if you discover an exhaust noise that persists on your Audi A5? 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 produced this to help you fix it. First, we will look at the possible causes if you have a muffled exhaust sound on your Audi A5 and second, if you have a metallic rattling noise on your Audi A5.
Muffled exhaust noise Audi A5
Exhaust pipe with holes Audi A5
Having a muffled sound from its exhaust is not insignificant and can cause over-consumption, or a malfunction of the car engine, which could eventually become dirty, for example. If you have an exhaust noise on your Audi A5, it is possible that it is due to a crack in the exhaust pipe, this is the most typical cause. To be able to confirm this, situate a friend or relative under the running motor car and accelerate to help them determine the source 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 swapped.
Element dislocated exhaust pipe Audi A5
The other possibility of being confronted with a muffled exhaust noise on Audi A5 is to have a part of the exhaust unit that has dislocated resulting from vibrations for example. In fact some junctions of the different parts of the pot can loosen after some time and cause an exhaust gas leak in places not intended for this purpose. These fumes will then create a loud noise. Same technique as above, we go under the Audi A5 to identify the problem region, 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, consider having a look at this document which gives answers gives solutions about rear end noises on Audi A5.
Metal rattling exhaust sound Audi A5
Damaged exhaust muffler noise Audi A5
If, on the other hand, you are exposed 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 plausible that either your baffles, the catalyst or the silencer are the cause of this noise. To be certain, go under your Audi A5, cold, and tap each of the previously stated parts with a hammer to identify 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 out of date catalyst, it will be necessary to consider replacing it, as well as the silencer. In this case, to stop the exhaust noise on your Audi A5, you will either have to find a resale one and do it yourself, or go to your mechanic.
Metal rattling exhaust noise Audi A5 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Audi A5 may be related to a poor attachment of your exhaust to your car. In fact, 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 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 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 swapped.
