It is never pleasing to find out a sound you don’t know about, and which originates from your car. Thus, what if you spot an exhaust noise that persists on your Bmw Serie 3 E93? It is highly probable that this is a small problem, however, before being sure, it is better to carry out some inspections. Our team has produced this to help you resolve it. First, we will look at the possible causes if you have a muffled exhaust sound on your Bmw Serie 3 E93 and second, if you have a metallic rattling noise on your Bmw Serie 3 E93.
Muffled exhaust noise Bmw Serie 3 E93
Exhaust pipe with holes Bmw Serie 3 E93
Having a muffled sound from its exhaust is not insignificant and can cause over-consumption, or a malfunction of the car engine, which could in time become dirty, for example. If you have an exhaust noise on your Bmw Serie 3 E93, it is possible that it is due to a hole in the exhaust pipe, this is the most usual explanation. To be able to verify this, locate somebody under the running motor car and accelerate to help them find the starting point of the hole. Once identified, 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 Bmw Serie 3 E93
The other possibility of being confronted with a muffled exhaust noise on Bmw Serie 3 E93 is to have a part of the exhaust unit that has dislocated due to vibrations for example. Indeed 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 purpose. These fumes will then generate a loud noise. Same technique as above, we go under the Bmw Serie 3 E93 to discover the problem location, 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, consider looking at this content page which gives answers gives solutions about rear end noises on Bmw Serie 3 E93.
Metal rattling exhaust sound Bmw Serie 3 E93
Damaged exhaust muffler noise Bmw Serie 3 E93
If, on the other hand, you are exposed to an exhaust sound that is more of a metallic type, it is possible 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 cause of this noise. To be certain, go under your Bmw Serie 3 E93, cold, and tap each of the previously stated parts with a hammer to discover 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 out of date catalyst, it will be necessary to consider changing it, as well as the silencer. In this case, to stop the exhaust noise on your Bmw Serie 3 E93, you will either have to find a used one and do it yourself, or go to your technician.
Metal rattling exhaust noise Bmw Serie 3 E93 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Bmw Serie 3 E93 may be related to a poor attachment of your exhaust to your car. Indeed, over time, 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 responds. 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 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.
