Slight 'humming' when car is off and parked?
10-05-2010, 10:26 PM
#1
Slight 'humming' when car is off and parked?
Have occasionally noticed a 'slight humming' coming from the engine bay when the car has been off and parked for a while in my garage. Normal? What is it?
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Shirley Huff (11-28-2023)
10-06-2010, 07:37 AM
#2
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2012 CLS63
cooling fan?
10-06-2010, 09:37 AM
#5
humm
I think I know what you're talking about. Its a very subtle hum coming from the engine compartment.
This isn't an engine cooling fan which is much louder. I've noted this hum after my car has been parked for a couple of hours and I open and close the doors. Seems to last for several minutes.
I figured it was normal.
This isn't an engine cooling fan which is much louder. I've noted this hum after my car has been parked for a couple of hours and I open and close the doors. Seems to last for several minutes.
I figured it was normal.
10-06-2010, 09:43 AM
#6
I think I know what you're talking about. Its a very subtle hum coming from the engine compartment.
This isn't an engine cooling fan which is much louder. I've noted this hum after my car has been parked for a couple of hours and I open and close the doors. Seems to last for several minutes.
I figured it was normal.
This isn't an engine cooling fan which is much louder. I've noted this hum after my car has been parked for a couple of hours and I open and close the doors. Seems to last for several minutes.
I figured it was normal.
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10-06-2010, 07:26 PM
#10
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2013 Q7 S-Line, 2010 E350 Sport Sedan P1, 2005 Camry, 2008 Piaggio MP3 250, Sold: 02 C230, 90 Miata
I don't remember mine doing that, I will check it out. I remember an optional button (don't remember the name) on my sold C230 to maintain a desired temperature inside the car for a limited amount of time even after turning off the engine. I don't see a similar option in my W212.
10-18-2010, 10:51 PM
#11
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i spend numerous time in my benz with he engine off.
and i can hear it on the inside too.
i got me wondering, and i tried to pinpoint the sound.
my guess by now is that it's a little interior fan, refreshing the interior air.
it stops after some time until i put the contact back on and put it off again.
time differs though. sometimes it does it for 10 mintes the next time it stays on for just 2 minutes..
and i can hear it on the inside too.
i got me wondering, and i tried to pinpoint the sound.
my guess by now is that it's a little interior fan, refreshing the interior air.
it stops after some time until i put the contact back on and put it off again.
time differs though. sometimes it does it for 10 mintes the next time it stays on for just 2 minutes..
10-19-2010, 12:46 PM
#13
The feature you are referring to is available only on the Canada E-class according to the owners manual.
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"I don't remember mine doing that, I will check it out. I remember an optional button (don't remember the name) on my sold C230 to maintain a desired temperature inside the car for a limited amount of time even after turning off the engine. I don't see a similar option in my W212."
---------------
"I don't remember mine doing that, I will check it out. I remember an optional button (don't remember the name) on my sold C230 to maintain a desired temperature inside the car for a limited amount of time even after turning off the engine. I don't see a similar option in my W212."
Last edited by MagicJack; 10-20-2010 at 07:48 AM. Reason: forgot to quote
