It is never pleasing to hear a sound you don’t know about, and which comes from your car. So, what if you notice an exhaust noise that persists on your Bmw Serie 4 F33? It is highly possible that this is a minor issue, however, before being sure, it is better to carry out some investigations. Our team has created this to support you fix it. First, we will look at the possible causes if you have a muffled exhaust sound on your Bmw Serie 4 F33 and second, if you have a metallic rattling noise on your Bmw Serie 4 F33.
Muffled exhaust noise Bmw Serie 4 F33
Exhaust pipe with holes Bmw Serie 4 F33
Having a muffled sound from its exhaust is not insignificant and can end in over-consumption, or a malfunction of the engine, which could finally become dirty, for example. If you have an exhaust noise on your Bmw Serie 4 F33, it is plausible that it is due to a hole in the exhaust pipe, this is the most regular cause. In order to verify this, locate a friend or relative under the running motor automobile and accelerate to help them find the starting point 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 changed.
Element dislocated exhaust pipe Bmw Serie 4 F33
The other possibility of being subjected to a muffled exhaust noise on Bmw Serie 4 F33 is to have a part of the exhaust unit that has dislocated resulting from vibrations for example. Indeed some junctions of the different parts of the pot can loosen after some time and generate an exhaust gas leak in places not intended for this goal. These fumes will then make a loud noise. Same technique as above, we go under the Bmw Serie 4 F33 to discern the issue 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, consider having a look at this document which gives answers gives solutions about rear end noises on Bmw Serie 4 F33.
Metal rattling exhaust sound Bmw Serie 4 F33
Damaged exhaust muffler noise Bmw Serie 4 F33
If, on the other hand, 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 destroyed. Indeed, it is possible that either your baffles, the catalyst or the silencer are the cause of this noise. To be sure, go under your Bmw Serie 4 F33, cold, and tap each of the previously stated parts with a hammer to discern 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 swapping it, as well as the silencer. In this case, to stop the exhaust noise on your Bmw Serie 4 F33, you will either have to find a used one and do it yourself, or go to your auto technician.
Metal rattling exhaust noise Bmw Serie 4 F33 : Silentblock, loose pot
Finally, a metallic exhaust noise on your Bmw Serie 4 F33 may be related to a poor attachment of your exhaust to your automobile. Indeed, over time, vibrations, the pot fasteners on the automobile 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 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 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 changed.
