It is rarely pleasant to notice a sound you don’t know about, and which will arrive from your car. So, what if you discover an exhaust noise that persists on your Mercedes Viano? It is highly possible that this is a minimal trouble, however, before being sure, it is better to accomplish some verifications. Our team has made this to support you resolve it. First, we will look at the possible reasons if you have a muffled exhaust sound on your Mercedes Viano and second, if you have a metallic rattling noise on your Mercedes Viano.
Muffled exhaust noise Mercedes Viano
Exhaust pipe with holes Mercedes Viano
Having a muffled sound from its exhaust is not insignificant and can end up in over-consumption, or a malfunction of the engine unit, which could after a while become dirty, for example. If you have an exhaust noise on your Mercedes Viano, it is possible that it is due to a crack in the exhaust pipe, this is the most common explanation. In order to verify this, position somebody under the running motor car and accelerate to help them identify the origin of the hole. Once discovered, 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 Mercedes Viano
The other possibility of being confronted with a muffled exhaust noise on Mercedes Viano is to have a part of the exhaust device that has dislocated as a consequence of 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 goal. These fumes will then create a loud noise. Same technique as above, we go under the Mercedes Viano to define the trouble location, and tighten or change the bolts. If you hear a muffled sound but after verifying it doesn’t seem to come from the pot itself, consider taking a look at this article which gives solutions gives solutions about rear end noises on Mercedes Viano.
Metal rattling exhaust sound Mercedes Viano
Damaged exhaust muffler noise Mercedes Viano
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 weakened. Indeed, it is possible that either your baffles, the catalyst or the silencer are the induce of this noise. To make sure, go under your Mercedes Viano, cold, and tap each of the previously stated parts with a hammer to define 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 changing it, as well as the silencer. In this case, to stop the exhaust noise on your Mercedes Viano, you will either have to find a used one and do it yourself, or go to your auto technician.
Metal rattling exhaust noise Mercedes Viano : Silentblock, loose pot
Finally, a metallic exhaust noise on your Mercedes Viano may be related to a poor attachment of your exhaust to your car. In fact, as time passes, vibrations, the pot fasteners on the car chassis can come off. In this case, you need to check, 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 check 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.
