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      12-26-2013, 12:20 PM   #11
Tom K.
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United_States
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Drives: '07 328iT, '13 Boxster
Join Date: Mar 2008
Location: Maryland


Posts: 5,384
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From the 2007 E90 iManual:

"Switching on the hour signal*
You will hear three tones just before each full
hour.
Select "Hour memo" and press the controller. The hour signal is activated."

Tom