Mercedes-Benz C-Class Wagon Owner's Manual page 490

Display messages
Head-up display currently
unavailable See Owner's
Manual
Head-up display inoperative
Head-up display Brightness
currently reduced See Own-
er's Manual
Possible causes/consequences and
Consult a qualified specialist workshop.
#
* The head-up display is temporarily unavailable. Possible causes:
malfunctions in the power supply
R
signal interference
R
Stop the vehicle in accordance with the traffic conditions and switch the ignition off and on again.
#
If the display message still appears, consult a qualified specialist workshop.
#
* The head-up display has an internal error.
Consult a qualified specialist workshop.
#
* The brightness of the head-up display is reduced. Possible causes:
Dirt on the windscreen in the camera's field of vision
R
Faulty exterior brightness signals
R
Switch on the windscreen wipers.
#
Clean the windscreen if necessary.
#
Switch the ignition off and switch it back on.
#
If the display message still appears, consult a qualified specialist workshop.
#
Display messages and warning/indicator lamps 487
M M Solutions