Diagnostics Indicator Lamp - Mercedes-Benz Unimog Operating Instructions Manual

Engine diagnostics indicator lamp
Indicator lamp
Problem
The ; indicator
lamp flashes.
The ; indicator
lamp lights up.
The on-board computer
shows an event window
and the · indicator
lamp in the display.
Possible causes/consequences and M Solutions
After you have turned the key in the ignition lock to position 2, the
indicator lamp indicates the system's status by means of a
sequence of flashes. If there are no malfunctions, the indicator
lamp goes out after the engine is started.
An emissions-related malfunction has been detected.
X
Follow the instructions in the event window.
X
®
Have the BlueTec
as possible at a qualified specialist workshop.
If you do not follow the instructions in the event window, a reduc-
tion in the engine power output may be imposed, as per the mes-
sage displayed:
after ten hours, e.g. if a low-grade diluted reducing agent is being
R
used or the dosage is incorrect
after 36 hours, e.g. if the exhaust gas recirculation or the mon-
R
itoring system is faulty
Instrument cluster
exhaust gas aftertreatment checked as soon
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