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535i sport View Drop Down
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Direct Link To This Post Topic: Strange noise after switching engine off!
    Posted: 23-November-2003 at 17:51
After switching the engine off on my E34 535i sport there is a strange 'whirring' noise that sounds like its coming from just behind the dashboard,it lasts about 3 seconds. Ive heard some people say it may be some kind of valve re-setting. Has anyone got any ideas on what this noise is and whether its supposed to be doing it ?
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johnny318is View Drop Down
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Direct Link To This Post Posted: 23-November-2003 at 19:04
Every E34 I've ever been in does it, from 518i to M5. Someone told me it's the pressure regulator for the wipers, so they stay in contact with the windscreen all the time.
John

Plymouth UK

96 E34 540i Individual
98 E39 523i SE
01 Renaultsport Clio 172
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Direct Link To This Post Posted: 24-November-2003 at 19:13

You sometimes hear it as you drive off from cold as well, just as you're slipping into 2nd gear.

Of course there's the buzzing from the idle control valve and the sound from the auxilliary water pump as well under the lid.

My Dad's 328i has a noise behind the passenger side of the dashboard which carries on for about 10 minutes after stopping the engine, might be the e-box fan but no one's sure !

Andy  540i  Birmingham

Badger540      West Midlands
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Direct Link To This Post Posted: 24-November-2003 at 22:02
Spot-on Badger 540,i do hear it when i drive off from cold just as im changing in to 2nd gear. From what people have said so far i dont think its anything to worry about,i just wasnt sure if it was supposed to do it!
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