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What is this squeeling when it's parked up

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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Portisz4
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What is this squeeling when it's parked up

Post by Portisz4 » Tue May 30, 2023 4:49 pm

Ive noticed when I get home and park the car and lock it that there is a weird squeeling noise roughly every minute or so from under the bonnet.
I thought was the alternator but now I'm not sure.

It lasts about 1 second. Been doing it for half an hour now. Almost like a little electrical buzz.

I've noticed it because I'm working in my garage next to it.
Any thoughts?

mcbutler
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What is this squeeling when it's parked up

Post by mcbutler » Tue May 30, 2023 5:51 pm

The water pump makes a buzzing noise and does run after the car is turned off if its very hot
My 35i does this a lot
Mark
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Black leather

john-e89
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What is this squeeling when it's parked up

Post by john-e89 » Tue May 30, 2023 6:23 pm

Questions like this are open season to Pondy.....only a matter of time.... :wink:
M roady...OEM CSL’s, strut brace, Remus back boxes, ZHP
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
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Portisz4
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What is this squeeling when it's parked up

Post by Portisz4 » Tue May 30, 2023 7:04 pm

More of a high pitched buzz really. Definitely electrical . Not a pump

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Pondrew
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What is this squeeling when it's parked up

Post by Pondrew » Tue May 30, 2023 7:22 pm

Portisz4 wrote: Tue May 30, 2023 7:04 pm More of a high pitched buzz really. Definitely electrical . Not a pump
Are you married or have a (female) partner who regularly uses the car?
Just trying to rule out the obvious TBH! :P
All good things come to those who wait. I'm really impatient which explains a lot.

F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!

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Portisz4
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What is this squeeling when it's parked up

Post by Portisz4 » Tue May 30, 2023 7:29 pm

:rofl:

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What is this squeeling when it's parked up

Post by john-e89 » Tue May 30, 2023 7:32 pm

.......as reliable as night follows day..... :roll: :lol:
M roady...OEM CSL’s, strut brace, Remus back boxes, ZHP
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
G29

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MikeyH
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What is this squeeling when it's parked up

Post by MikeyH » Tue May 30, 2023 8:46 pm

The forum wouldn't be the same without him :roll: :thumbsup:
Now, Sterling grey Z4 2.2 with cup holders, stubby aerial and sport seats. Roadsters ‘cause they’re great with the roof down.
Ford Anglia, Red Sprite, a few MG midgets, MGB Roadster and yellow Ford Capri, all gone many years now.

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Pondrew
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What is this squeeling when it's parked up

Post by Pondrew » Tue May 30, 2023 8:53 pm

MikeyH wrote: Tue May 30, 2023 8:46 pm The forum wouldn't be the same without him
Several people would disagree vehemently Mikey! :D
All good things come to those who wait. I'm really impatient which explains a lot.

F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!

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Marcoose
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What is this squeeling when it's parked up

Post by Marcoose » Tue May 30, 2023 10:02 pm

OP, have you tried ChatGPT ? Word is it works great for Z4 and marital problems.
2016 35is, monoballs, camber plates, KWV3, PS4S, xHP, MHD, LFB pedal, flat bottom wheel, red indicators, black headlamps
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