Why is there a current sound in the Mercedes-Benz center console?
4 Answers
Mercedes-Benz center console has a current sound for the following reasons: Gaps between components: There are gaps, deviations, or shifts between leather and plastic components, which can easily cause squeaking noises due to squeezing and loosening on bumpy roads. Generally, finding the source of the noise and using paper towels or rubber as spacers to block it can solve the issue. Collision between the amplifier and components: The noise is caused by the collision between the car audio amplifier and the vehicle components. This can mainly be fixed by tightening the screws to secure the amplifier, CD player, etc. Cold car: The sound of current inside the car is usually louder when the car is just started, especially during a cold start when audio, air conditioning, and other devices are immediately or automatically turned on. The sound will naturally disappear after the car warms up or drives for a while.
When I drove my Mercedes, I encountered a buzzing sound from the center console, which sounded like an electric current and was quite annoying at times. Later, I found that the air conditioning fan produced this noise when running, especially when switching between cooling and heating, as the fan worked harder. Additionally, the relay would buzz when switching power, which is a common phenomenon in many luxury cars. However, if the sound becomes sharper or continuously louder, it might indicate component aging, such as worn fan bearings, or loose wiring connections. In such cases, don’t ignore it—get it checked at the shop early. Otherwise, minor issues left unattended could affect battery life or safety. I recommend paying attention to sounds while driving and keeping the center console area clean to prevent problems.
Dealing with dashboard current noise is simple and hassle-free when done step by step. First, try turning off the AC—if the noise stops, it's likely a fan issue. If it persists, turn off the audio system; if the noise ceases, it indicates audio interference. The relay in a Mercedes often produces a normal working hum, but if the sound is harsh, check the fuse or whether the battery voltage is stable. Loose ground wires can also cause noise, which you can slightly tighten yourself. In short, address easy-to-check items like cleaning fans and connectors first, and leave more complex issues to technicians to avoid unnecessary expenses. Mercedes electrical systems are precise, and regular maintenance can reduce the occurrence of abnormal noises.
The buzzing sound may be unsettling but is mostly harmless. Common noises from the Mercedes center console include fan rotation or relay humming, which are usually normal. However, if the sound becomes unusually loud or is accompanied by a burning smell, it could indicate a short circuit or relay malfunction. Delaying repairs may lead to blown fuses or even electrical fires. For safety, immediately seek professional inspection at any sign of abnormality—especially avoid risks during night driving. Also, prevent electrical overload in the car to minimize risks.
