mokawop

Hi everyone, recently there has been a clicking/burring noise coming from the drivers side air vent. It happens completely randomly, and I have no clue what the sound is. I have included a video of the sound. If anyone knows what's wrong please let me know. I have a c450. The shutting down system was from my dashcam btw.

echipman

Interesting, I have the same thing happening on my 2016 C450. I hear it mostly when I start the car. It might go away but I usually can’t hear it over the radio.

mfeinst

Yeah, I think it's normal. It happens with my vents sometimes, as well. Some kind of system calibration happening, I think.

DLAMG_1979

Same, when cold starting starting the car.