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122 On-board computer and displays
Warning/indicator
lamp
;
Engine diagnosis warning
lamp
;
Engine diagnosis warning
lamp
System check after a malfunction
®
BlueTEC
4 vehicles and BlueTEC
®
Once the AdBlue
tank has been refilled or the
fault rectified, full engine output will be restored.
If the system check does not detect any other
faults, the ; indicator lamp will go out. It may
take several journeys to complete the system
check.
®
BlueTEC
6 vehicles
®
Once the AdBlue
tank has been refilled or the
fault rectified, full engine output will be restored.
If the system check does not detect any other
faults, the ; indicator lamp will go out after
the system's status display. It may take several
journeys to complete the system check.
Possible causes/consequences and
The indicator lamp lights up. Engine output is reduced. At the same
time, the on-board computer shows an event window and the · indi‐
cator lamp in the status area lights up.
*You have not rectified a detected emissions-related malfunction.
Follow the instructions in the event window.
#
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, speed may
be limited as per the message displayed:
Approximately 20 hours after the first occurrence of a malfunc‐
R
tion, e.g. if a low-grade diluted reducing agent is used or the
metering is incorrect
Approximately 100 hours after the first occurrence of a malfunc‐
R
tion, e.g. if the exhaust gas recirculation or the security system is
faulty
In certain cases, speed may be limited even earlier.
The indicator lamp lights up. The speed is limited to approximately
20 km/h. The on-board computer also shows the · indicator lamp
in the status area.
* AdBlue
®
has been used up or a detected emissions-related malfunc‐
tion has not been rectified.
Follow the instructions in the event window.
#
Drive carefully to the nearest filling station and top up with
#
®
AdBlue
(
page 284).
/
or
Drive carefully to the nearest qualified specialist workshop and
#
have the malfunction rectified immediately.
The MOT approval will be invalidated if you continue to use the vehi‐
cle.
If there is low-quality or diluted reducing agent in
the AdBlue
®
5 vehicles
then refill it with AdBlue
with DIN 70070/ISO. You can then initiate a sys‐
tem check. To do so, carry out manual regenera‐
tion of the diesel particulate filter (
Status display for the BlueTec
aftertreatment
In BlueTEC
TEC
for a quick on-site check by authorities.
There are three successive signalling phases
shown by the ; indicator lamp. Signalling will
start after you have switched on the ignition and
end when the engine starts.
Solutions
M
®
tank, you must empty the tank and
®
/DEF in accordance
®
6 vehicles, the status of the Blue‐
®
exhaust gas aftertreatment will be signalled
page 277).
/
®
6 exhaust gas
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