VDO M4WL Operator's Manual page 31

M4 WL
Settings – current altitude
Setting the current altitude by entering the sea level
pressure.
As a second option, you can also set the current altitude via
the sea level pressure.
How to set the current altitude by entering the sea level
pressure:
On the M4 WL, the sea level pressure is recalculated to the
current altitude.
Details of the sea level pressure for your current location
can be found on several weather websites.
Press the SET button to confirm the setting for the current
altitude via the sea level pressure.
The setting opens.
The current sea level pressure is displayed.
Press the BIKE button to increase the value.
Press the ALTI button to decrease the value.
Once the correct current altitude has been set,
confirm the setting by pressing the SET button.
The response "Set OK" appears on the display.
If you want to configure further settings,
press the BIKE or ALTI button to access these.
If you do not want to configure any further settings,
press and hold the SET or BIKE button.
The settings menu closes.
The VDO M4 WL returns to function mode.
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