It is never pleasant to notice 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 Q7? It is highly possible that this is a small trouble, however, before being sure, it is better to accomplish some checks. 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 Q7 and second, if you have a metallic rattling noise on your Audi Q7.
Muffled exhaust noise Audi Q7
Exhaust pipe with holes Audi Q7
Having a muffled sound from its exhaust is not insignificant and can lead to over-consumption, or a malfunction of the engine, which could in time become dirty, for example. If you have an exhaust noise on your Audi Q7, it is plausible that it is due to a hole in the exhaust pipe, this is the most common cause. In order to verify this, locate someone under the running motor car and accelerate to help them find the source of the hole. Once determined, 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 Q7
The other possibility of being the subject of a muffled exhaust noise on Audi Q7 is to have a part of the exhaust system that has dislocated as a consequence of vibrations for example. Indeed some junctions of the different parts of the pot can loosen with time and cause an exhaust gas leak in places not intended for this purpose. These fumes will then make a loud noise. Same technique as above, we go under the Audi Q7 to establish the trouble area, and tighten or replace the bolts. If you hear a muffled sound but after checking it doesn’t seem to come from the pot itself, think about taking a look at this article which gives answers gives solutions about rear end noises on Audi Q7.
Metal rattling exhaust sound Audi Q7
Damaged exhaust muffler noise Audi Q7
If, on the other hand, 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 damaged. Indeed, it is conceivable that either your baffles, the catalyst or the silencer are the reason of this noise. To be sure, go under your Audi Q7, cold, and tap each of the previously stated parts with a hammer to establish 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 changing it, as well as the silencer. In this case, to stop the exhaust noise on your Audi Q7, you will either have to find a second hand one and do it yourself, or go to your mechanic.
Metal rattling exhaust noise Audi Q7 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Audi Q7 may be linked to a poor attachment of your exhaust to your car. Indeed, over the years, vibrations, the pot fasteners on the car chassis can come off. In this case, you need to verify, 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 unit, the more fixed it should be. Visually verify 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.
