Yet another strange noise

beamlord · 05-09-2023, 12:15 PM

Since we are good at investigating and identifying weird noises of this car, here's another one:
When unlocking the car, a squeak is heard from the engine compartment. Kind of like something is turning and lets out a faint squeak.
The sound is definitely inside the engine bay, on the passenger side.
It only happens once after a has been sitting overnight, i.e. for a longer time. It doesn't happen afterwards, during the day.

It's not as alarming as it is weird and would be interesting to know what can make a squeaky noise in the engine bay..some sort of a flap opening up when car is unlocked?

davidmct-M3 · 05-10-2023, 02:21 PM

Waking up the mice chewing through your electrics??? Sorry couldn’t resist. Pulley?

beamlord · 05-10-2023, 04:45 PM

Quote:

Originally Posted by davidmct-M3

Waking up the mice chewing through your electrics??? Sorry couldn’t resist. Pulley?

What kind of a pulley squeaks when you unlock the car?

davidmct-M3 · 05-11-2023, 02:41 AM

Quote:

Originally Posted by beamlord

What kind of a pulley squeaks when you unlock the car?

I assume the electronics will be priming for a start eg fuel pump - so maybe no belts.

LuvMyE92 · 05-11-2023, 12:01 PM

These cars (BMWs) do this all the time - it's a computer waking up. My wife's car makes so much noise you'd think someone is killing a squirrel in there. Different cars in my past make different distinct and unique sounds.

beamlord · 05-12-2023, 01:17 PM

Quote:

Originally Posted by LuvMyE92

These cars (BMWs) do this all the time - it's a computer waking up. My wife's car makes so much noise you'd think someone is killing a squirrel in there. Different cars in my past make different distinct and unique sounds.

Really, also squeak under the hood when unlocking/waking up the car?

DO444 · 05-13-2023, 08:30 PM

It’s likely the mouse that has made your engine compartment it’s home.

He’s just letting you know that he’s headed out for the day.

Morning Ralph.
Mornin Sam.

05-09-2023, 12:15 PM	#1
beamlord First Lieutenant 433 Rep 360 Posts Drives: 2023 m3c Join Date: Apr 2023 Location: europe iTrader: (0)	Yet another strange noise Since we are good at investigating and identifying weird noises of this car, here's another one: When unlocking the car, a squeak is heard from the engine compartment. Kind of like something is turning and lets out a faint squeak. The sound is definitely inside the engine bay, on the passenger side. It only happens once after a has been sitting overnight, i.e. for a longer time. It doesn't happen afterwards, during the day. It's not as alarming as it is weird and would be interesting to know what can make a squeaky noise in the engine bay..some sort of a flap opening up when car is unlocked?
	Appreciate 0 Tweet Quote

05-10-2023, 02:21 PM	#2
davidmct-M3 First Lieutenant 236 Rep 321 Posts Drives: BMW 440i with MPSSK Join Date: Mar 2022 Location: UK iTrader: (0)	Waking up the mice chewing through your electrics??? Sorry couldn’t resist. Pulley?
	Appreciate 0 Quote

05-11-2023, 12:01 PM	#5
LuvMyE92 Occasionally frequent poster 3003 Rep 2,745 Posts Drives: CT5V-Blackwing Join Date: Jan 2008 Location: RTP NC, USA iTrader: (0)	These cars (BMWs) do this all the time - it's a computer waking up. My wife's car makes so much noise you'd think someone is killing a squirrel in there. Different cars in my past make different distinct and unique sounds. __________________ Current inventory: F22 & G05 Cadillac CT5-V Blackwing w/3 pedals Past: E24,E28(3),E34,E36,E37,E38(2),E39(4),E46,E89,E92 (obviously),F01,F06,F10,F30,F87,G12,G30(2),G82(2)
	Appreciate 0 Quote

05-13-2023, 08:30 PM	#7
DO444 Banned 1411 Rep 1,174 Posts Drives: 340i Join Date: May 2022 Location: Idaho iTrader: (0)	It’s likely the mouse that has made your engine compartment it’s home. He’s just letting you know that he’s headed out for the day. Morning Ralph. Mornin Sam.
	Appreciate 0 Quote