Why does the Mercedes car horn sound muffled?

[JoelMarie]

Mercedes car horn sounding muffled is most likely caused by water ingress. Solutions for a waterlogged car horn: 1. Open and air dry: Allow the water inside to evaporate naturally, otherwise prolonged exposure may cause a short circuit in the wiring. 2. Remove the horn: If there isn't too much water, take the horn off, drain the water, and then reinstall it. Be careful not to lose any parts during reinstallation. 3. Heat the horn: Use a hairdryer to heat the horn, causing the water inside to evaporate. Once the water has evaporated, the horn should return to normal. However, if the horn's diaphragm is damaged due to water ingress, the only solution is to replace the horn with a new one.