Mercedes-Benz OM 904-926 LA BlueTec, Руководство по эксплуатации

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Problem Possible causes/consequences and
M
Solutions
The
;
indicator
lamp lights up briefly
and goes out again.
if there are no malfunctions, the
;
indicator lamp lights up
briefly during the instrument cluster's display check and then goes
out again.
The
;
indicator
lamp flashes.
Simultaneously, a dis-
play message with a
red status indicator
appears in the display.
6 7
The AdBlue ® /DEF tank is empty.
There is a fault.
The engine output may be reduced
8
.
X Follow the instructions in the display messages.
The
;
indicator
lamp lights up perma-
nently.
The BlueTec
®
exhaust gas aftertreatment system has a fault or an
emissions-relevant malfunction.
A malfunction or fault could damage the BlueTec
®
exhaust gas
aftertreatment.
The engine output may be reduced
8
.
X
Have the BlueTec
®
exhaust gas aftertreatment checked as soon
as possible at a qualified specialist workshop.
Engines with BlueTec
®
exhaust gas aftertreatment:
When the AdBlue
®
/DEF tank is filled or the fault is rectified, full engine power will be available
again. If the system check does not detect any other faults, the
;
indicator lamp goes out.
It may take several journeys/working cycles to complete the system check.
BlueTec ® exhaust gas aftertreatment indicator (off-highway version)
AdBlue
®
/DEF level low
If the AdBlue
®
/DEF level is too low, the system registers the following warnings:
AdBlue
®
/DEF level
System message
Trigger 1:
Level 20% or less
The
å
AdBlue
®
/DEF indicator lamp lights up.
Trigger 2:
Level 10% or less
The
å
AdBlue
®
/DEF indicator lamp lights up.
8 The engine output is not reduced in the case of emergency vehicles, e.g. fire engines.
BlueTec
®
exhaust gas aftertreatment indicator (off-highway version)
95
Breakdown assistance
Z