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Instrument cluster
132
Problem
The ; indicator lamp
lights up.
The on-board computer
shows an event window
and the · indicator
lamp in the display.
The ; indicator lamp
lights up.
The engine power output
is reduced. The on-board
computer also shows an
event window and the
· indicator lamp in
the display.
The ; indicator lamp
lights up.
Vehicle speed is limited
to approx. 20 km/h.
Simultaneously, the on-
board computer shows
the · indicator lamp
in the status area.
i
Once the AdBlue
the system check does not detect any other faults, the ; indicator lamp goes out after the
system's status indicator. It may take several journeys to complete the system check. When low
quality or diluted reducing agent is in the AdBlue
with AdBlue/DEF according to DIN 70070/ISO. Subsequently, a system check can be initiated.
Also carry out manual regeneration (
Possible causes/consequences and M Solutions
An emissions-related malfunction has been detected.
X
Follow the instructions in the event window.
X
Have the BlueTec
ately at a qualified specialist workshop.
If you do not follow the instructions in the event window, a reduction
in the engine power output may be imposed, as per the message dis-
played:
after approximately 10 hours, e.g. if a low-grade diluted reducing
R
agent is being used or if the dosage is incorrect
after approximately 36 hours, e.g. if the exhaust gas recirculation or
R
the security system is faulty
In certain cases, engine output may be reduced even earlier.
You have not rectified a detected emissions-related malfunction.
X
Follow the instructions in the event window.
X
Drive carefully to the nearest qualified specialist workshop and
have the malfunction rectified immediately.
If you do not follow the instructions in the event window, a speed
limitation may be imposed, as per the message displayed:
approximately 20 hours after the first occurrence of a malfunction,
R
e.g. if a low-grade diluted reducing agent is being used or if the
dosage is incorrect
approximately 100 hours after the first occurrence of a malfunction,
R
e.g. if the exhaust gas recirculation or the security system is faulty
In certain cases, speed limitation may be imposed even earlier.
®
AdBlue
has been used up or a detected emissions-related malfunc-
tion has not been rectified.
X
Follow the instructions in the event message.
X
Drive carefully to the nearest filling station and refill AdBlue
Y
(
page 318).
or
X
Drive carefully to the nearest qualified specialist workshop and
have the malfunction rectified immediately.
The operating permit is invalidated if you continue to use the vehicle.
®
tank has been refilled or the fault rectified, full engine output is restored. If
Y
page 312).
®
exhaust gas aftertreatment checked immedi-
®
tank, the tank must be emptied and then refilled
®
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