It is never pleasant to perceive a sound you don’t know about, and which will arrive from your car. So, what if you notice an exhaust noise that persists on your Audi A6? It is highly possible that this is a minor issue, however, before being sure, it is better to accomplish some investigations. Our team has written this to support you fix it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Audi A6 and second, if you have a metallic rattling noise on your Audi A6.
Muffled exhaust noise Audi A6
Exhaust pipe with holes Audi A6
Having a muffled sound from its exhaust is not insignificant and can cause over-consumption, or a malfunction of the engine unit, which could in time become dirty, for example. If you have an exhaust noise on your Audi A6, it is plausible that it is due to a hole in the exhaust pipe, this is the most typical explanation. In order to verify this, situate somebody under the running motor vehicle and accelerate to help them find 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 A6
The other possibility of being the subject of a muffled exhaust noise on Audi A6 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 over time and generate 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 A6 to determine the issue place, and tighten or swap the bolts. If you hear a muffled sound but after verifying it doesn’t seem to come from the pot itself, think about looking at this content page which gives answers gives solutions about rear end noises on Audi A6.
Metal rattling exhaust sound Audi A6
Damaged exhaust muffler noise Audi A6
If, alternatively, you are exposed 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 plausible that either your baffles, the catalyst or the silencer are the reason of this noise. To make sure, go under your Audi A6, 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 A6, you will either have to find a used one and do it yourself, or go to your technician.
Metal rattling exhaust noise Audi A6 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Audi A6 may be connected to a poor attachment of your exhaust to your vehicle. In fact, over the years, 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 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 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.
