Mercedes-Benz Unimog Operating Instructions Manual page 148

Warning/indicator lamps in the status area of the on-board computer
146
Yellow warning or indicator lamp
Problem
The Û indicator
lamp in the status area
of the on-board com-
puter lights up yellow.
Red warning or indicator lamp
Problem
The Û indicator
lamp in the status area
of the on-board com-
puter lights up red.
Possible causes/consequences and M Solutions
G
Risk of accident
The trailer's brake system is malfunctioning. Driving/braking
characteristics may change. Observe the notes on trailers (see the
manufacturer's separate operating instructions).
X
Drive on carefully.
X
Have the brake system checked at a qualified specialist work-
shop.
Possible causes/consequences and M Solutions
G
Risk of accident
The trailer's brake system is malfunctioning or the trailer is auto-
matically braked. Driving/braking characteristics may change.
Observe the notes on trailers (see the manufacturer's separate
operating instructions).
X
Brake carefully and stop the vehicle, paying attention to road
and traffic conditions.
X
Apply the parking brake.
X
Consult a qualified specialist workshop.