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 2 months 1 week 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 2 months 1 week ago
Good suggestion Boki.
It could be the cooling fan as well.
Have you opened the hood and tried to pinpoint the exact location?
kincsem 3 days 20 hours ago
Like the comments have already mentioned, I do believe this is an issue with the cooling fan.
Cooling fans can be extremely loud and what you are talking about is probably the same thing. However, I have never experienced this issue myself. It's better to get it checked asap, it might sound like a small thing right now but can turn into something very serious.