E38 740i (1995) Annoying clapping sound coming from the dashboard - Bimmerfest - BMW Forums

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7 Series - E38 (1995 - 2001)

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Old 05-16-2019, 09:02 AM
sebek sebek is offline
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Location: Czech Republic
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Mein Auto: BMW E38 740i
E38 740i (1995) Annoying clapping sound coming from the dashboard

Could anybody please identify this annoying sound coming from the dashboard ? Feels like itīs something underneath the dashboard on the drivers side. The sound can be heard even when the engine is off as you can see in the video below. When I turn the ignition to the "pre-start" position (sorry I donīt know how it is called) the sound starts doing that clapping noise, when I turn the engine on, itīs still clapping. Sometimes itīs louder, sometimes itīs quiet and sometimes I canīt even hear it. Donīt you know what it could be ?
Thank you !

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Old 05-16-2019, 10:05 AM
u.nanimous u.nanimous is offline
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Mein Auto: 1999 740iS, 2008 335xi
Volume on full and I think I can hear it, but certainly not enough to tell you what it is.
Does it still make the noise if you turn the climate control completely off?

2005 Venture Extended LT - what else you gonna drive when you have 6 kids, cargo and still want better than 10MPG
1999 740iA - long term project/summer DD
2000 Impala LS - RIP 12/23/2016, officially totaled by insurance company
2001 330xiA - fXtXeX/son project - now April's car
2008 335xiA - winterbeater Impala replacement
2002 530i/5 - 2.5 years searching...and it is John's car
1989 535i/5 - the spare car
2002 325xiA - to be Charlotte's when she gets her license (?2019?)
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Old 05-16-2019, 01:55 PM
pascal32 pascal32 is offline
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Mind checking the heater valves behind the intake manifold against the firewall? The 98 I'm working on has heater valves with a mind of their own, not sure what is going
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