It is rarely pleasant to perceive a sound you don’t know about, and which originates from your car. So, what if you spot an exhaust noise that remains on your BMW X5? It is highly probable that this is a minimal issue, however, before being sure, it is better to carry out some inspections. Our team has made this to support you resolve it. First, we will look at the possible causes if you have a muffled exhaust sound on your BMW X5 and second, if you have a metallic rattling noise on your BMW X5.
Muffled exhaust noise BMW X5
Exhaust pipe with holes BMW X5
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 the end become dirty, for example. If you have an exhaust noise on your BMW X5, it is plausible that it is due to a crack in the exhaust pipe, this is the most regular explanation. To be able to verify this, locate someone under the running motor vehicle and accelerate to help them determine the origin of the hole. Once found, if it is not too large you can cold seal it with specific metallic mastic type legs. Otherwise, the section will have to be replaced.
Element dislocated exhaust pipe BMW X5
The other possibility of being subjected to a muffled exhaust noise on BMW X5 is to have a part of the exhaust device that has dislocated because of vibrations for example. Indeed some junctions of the different parts of the pot can loosen along with 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 BMW X5 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, consider having a look at this article which gives answers gives solutions about rear end noises on BMW X5.
Metal rattling exhaust sound BMW X5
Damaged exhaust muffler noise BMW X5
If, alternatively, you are subject 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 destroyed. Indeed, it is conceivable that either your baffles, the catalyst or the silencer are the cause of this noise. To make sure, go under your BMW X5, 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 BMW X5, you will either have to find a resale one and do it yourself, or go to your technician.
Metal rattling exhaust noise BMW X5 : Silentblock, loose pot
Finally, a metallic exhaust noise on your BMW X5 may be linked to a poor attachment of your exhaust to your vehicle. Indeed, over the years, vibrations, the pot fasteners on the vehicle 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 motor, 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 replaced.
