BMW M5 Owner's Handbook Manual page 100

CONTROLS
Initialising after a power failure
General
If a power failure occurs while the Glass Roof is
opening or closing, it may only have limited func‐
tionality afterwards.
The system can be initialised under the following
conditions.
▷ The vehicle is parked in a horizontal position.
▷ The drive-ready state is established.
▷ The outside temperature is above 5 ℃/41 ℉.
During the initialisation, the Glass Roof closes
without the anti-trap mechanism.
Ensure that the closing area is clear.
Initialising the system
Press the switch upwards and
hold until initialisation is complete.
Initialisation begins within 15 seconds.
▷ If the Glass Roof is closed, it opens then
closes again.
▷ If the Glass Roof is open, it first closes, then
opens and closes again.
Initialisation is complete once the Glass Roof and
sun guard have opened then closed again.
100
Opening and closing
Online Edition for Part no. 01402989787 - II/18