It is rarely pleasant to find out a sound you don’t know about, and which originates from your car. So, what if you identify an exhaust noise that is persistant on your Audi A1? It is highly probable that this is a small problem, however, before being sure, it is better to operate some inspections. Our team has produced this to support you fix it. First, we will look at the possible causes if you have a muffled exhaust sound on your Audi A1 and second, if you have a metallic rattling noise on your Audi A1.
Muffled exhaust noise Audi A1
Exhaust pipe with holes Audi A1
Having a muffled sound from its exhaust is not insignificant and can end up in over-consumption, or a malfunction of the car engine, which could after a while become dirty, for example. If you have an exhaust noise on your Audi A1, it is plausible that it is due to a crack in the exhaust pipe, this is the most regular reason. To be able to confirm this, situate a friend or relative under the running motor car and accelerate to help them find the starting point 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 changed.
Element dislocated exhaust pipe Audi A1
The other possibility of being the subject of a muffled exhaust noise on Audi A1 is to have a part of the exhaust unit that has dislocated caused by vibrations for example. In fact some junctions of the different parts of the pot can loosen over time and generate 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 A1 to define the problem area, and tighten or change the bolts. If you hear a muffled sound but after checking 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 A1.
Metal rattling exhaust sound Audi A1
Damaged exhaust muffler noise Audi A1
If, alternatively, you are exposed to an exhaust sound that is more of a metallic sort of, it is plausible that one or more parts of your exhaust may be injured. Indeed, it is conceivable that either your baffles, the catalyst or the silencer are the induce of this noise. To be certain, go under your Audi A1, cold, and tap each of the previously stated parts with a hammer to define 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 swapping it, as well as the silencer. In this case, to stop the exhaust noise on your Audi A1, you will either have to find a second hand one and do it yourself, or go to your auto mechanic.
Metal rattling exhaust noise Audi A1 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Audi A1 may be related to a poor attachment of your exhaust to your car. In fact, over the years, 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 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 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.
