Problem
Possible causes/consequences and MM Solutions
The ; indicator lamp
lights up.
The engine power out-
put is reduced. The on-
board computer also
shows an event window
and the · indicator
lamp in the display.
You have not rectified adetected 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, aspeed
limitation may be imposed, as per the message displayed:
R
after approximately 20 hours after the first occurrence of amal-
function, e.g. if alow-grade diluted reducing agent is being used
or if the dosage is incorrect
R
after approximately 100 hours after the first occurrence of amal-
function, e.g. if the exhaust gas recirculation or the security sys-
tem is faulty
In certain cases, speed limitation may be imposed even earlier.
The ; indicator lamp
lights up.
The speed is limited to
approximately 12 mph
(20 km/h). The on-
board computer also
shows the · indica-
tor lamp in the status
area.
DEF has been used up or adetected emissions-related malfunction
has not been rectified.
X
Follow the instructions in the event message.
X
Drive carefully to the nearest filling station and refill DEF
(Y page 152).
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 vehi-
cle.
i
Once the DEF tank has been refilled or the fault rectified, full engine output is restored. If the
system check does not detect any other faults, the ; indicator lamp goes out after the sys-
tem's status indicator. It may take several journeys to complete the system check.
Exhaust gas aftertreatment status
indicator
The status of the exhaust gas aftertreatment is
signaled to facilitate quick checking by local
authorities.
There are three successive signaling phases
shown by the ; indicator lamp. These com-
mence when you have turned the key in the
ignition lock to the drive position, and end
when the engine is started.
The first phase is the instrumentcluster dis-
play check.The indicator lamp lights up for
approximately five seconds and then goes out
for approximately ten seconds. The second
phase indicates the system check status. The
indicator lamp either lights up again for
five seconds or flashes for approximately
five seconds. Subsequently, it goes out for
approximately five seconds.
In the third phase, the indicator lamp indicates
whether any emissions-related malfunctions
have been detected.
If no emissions-related malfunctions are
detected, the indicator lamp lights up briefly
and then goes out for approximately
five seconds. This flashing sequence is repea-
ted until the engine is started.
If an emissions-related malfunction is detec-
ted, the indicator lamp flashes three times and
then goes out for approximately five seconds.
This flashing sequence is repeated until the
engine is started. The indicator lamp remains
lit for approximately 15 seconds after the
engine is started.
Instrument cluster
71
On-board computer and displays
Z
To Next Page
Loading...
