It is never pleasing to notice a sound you don’t know about, and which results from your car. Thus, what if you detect an exhaust noise that is persistant on your Audi A2? It is highly possible that this is a small issue, however, before being sure, it is better to operate some inspections. Our team has produced this to help you resolve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Audi A2 and second, if you have a metallic rattling noise on your Audi A2.
Muffled exhaust noise Audi A2
Exhaust pipe with holes Audi A2
Having a muffled sound from its exhaust is not insignificant and can lead to over-consumption, or a malfunction of the engine, which could finally become dirty, for example. If you have an exhaust noise on your Audi A2, it is possible that it is due to a crack in the exhaust pipe, this is the most usual cause. In order to validate this, position a friend or relative under the running motor vehicle and accelerate to help them determine 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 changed.
Element dislocated exhaust pipe Audi A2
The other possibility of being the subject of a muffled exhaust noise on Audi A2 is to have a part of the exhaust device that has dislocated caused by 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 goal. These fumes will then produce a loud noise. Same technique as above, we go under the Audi A2 to determine the issue region, and tighten or change the bolts. If you hear a muffled sound but after examining it doesn’t seem to come from the pot itself, consider taking a look at this document which gives answers gives solutions about rear end noises on Audi A2.
Metal rattling exhaust sound Audi A2
Damaged exhaust muffler noise Audi A2
If, on the other hand, you are subject to an exhaust sound that is more of a metallic type, it is possible that one or more parts of your exhaust may be broken. 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 Audi A2, 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 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 Audi A2, you will either have to find a used one and do it yourself, or go to your technician.
Metal rattling exhaust noise Audi A2 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Audi A2 may be in connection with a poor attachment of your exhaust to your vehicle. In fact, after some time, vibrations, the pot fasteners on the vehicle 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, 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 changed.
