I hear a humming noise from left side of engine compartment for 1 to 5 minutes after I shut down my 2015 ML 400. Any insight?
Boki 1 week 4 days ago
I suppose it has LED lights. They have cooling fans, which continue working several minutes after you turn off the car.
Does it sound like that?
MercedesMedic 1 week 4 days ago
Good suggestion Boki.
It could be the cooling fan as well.
Have you opened the hood and tried to pinpoint the exact location?