Egonvdv

Humming sound coming from dashboard when getting in car (before starting)
It's coming from inside the dashboard (where the buttons are)
sounds it bit like the ventilator, though that's not it.
don't know if it always did this, and that it's just more noticeable now ...?
it is rather cold at the moment with temps around freezing, though can't imagine how this would be a factor?

ua549

Perhaps it is an electronics vent fan being a bit noisy 'til it warms.

Egonvdv

thanks @ua549
can anyone confirm that such a hum indeed is present when getting in the car ( diesel hybrid)
I'm starting to believe the hum was always there, just that it's louder now for some reason ?

TennesseeZ4

When we get in the S213 wagon there is a noise, rather like a subdued humming sound from the cockpit area. My MB tech tells me that it is the pre-tensioners for the seat belts. Could be a deflection, but for me it makes sense, if not it may be the self-leveling suspension in our wagon. Good luck!

Egonvdv

i guess the hum was always there, it's just got a bit "louder" now and then ...?