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noise under bonnet

woody1949

New Member
Joined
Sep 18, 2019
Messages
2
Location
nottingham
Car
c class diesel saloon C220D se executive auto
i have a 2018 c 220 amg line d auto estate. when i lock the car a noise can be heard from under the bonnet around the passenger headlight. anyone know the reason for it
 
'a noise' ?????
 
Like a whining sort of noise? I have this too, lasts for less than a minute or so. I assumed it was some sort of electric pump continuing to cool the engine.
 
i have a 2018 c 220 amg line d auto estate. when i lock the car a noise can be heard from under the bonnet around the passenger headlight. anyone know the reason for it
Its like a loud click from somewhere around the passenger headlight when the car is locked.
 
Alarm unit setting perhaps.
 
I dont know what it could be but... My car is my first Merc and I have never know a car make some many noises once its turned off.

It makes all sorts of low frequency buzzes clicks, whines etc..

I guess there is a lot of stuff going on even when the car is off.. If everything is working then I wouldnt worry to much.
 

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