Mercedes-Benz M-Class 2009 Owners Manual - Manual (Page 382)

AdBlue ® (diesel engine only)
380
Bleeding the fuel system (diesel
engine only)
Driving the vehicle until the fuel tank is empty
is not recommended. Otherwise, air may be
sucked into the fuel system. If this happens,
the malfunction indicator lamp
ú (USA
only) or ± (Canada only) comes on and the
engine may not start immediately after
refueling the vehicle.
After refueling:
X Make sure the automatic transmission is in
park position
P.
The gear position indicator in the
multifunction display should be on P.
X Do not depress the accelerator.
X If necessary, remove the KEYLESS-GO
start/stop button from the starter switch.
X Turn the SmartKey in the starter switch to
position
2 for at least 10 seconds.
X Return the SmartKey in the starter switch
to position
0.
X Turn the SmartKey in the starter switch to
position
3 and hold it there for a maximum
of 40 seconds or until the engine runs
surge-free.
If the engine does not start:
X Wait for approximately 2 minutes.
X Turn the SmartKey in the starter switch to
position
3 and hold it there for a maximum
of 40 seconds or until the engine runs
surge-free.
If the engine still does not start, do not make
any further attempts to start the engine.
Contact an authorized Mercedes-Benz Center
or call Roadside Assistance (
Y page 225).
i When the malfunction indicator lamp
ú (USA only) or ± (Canada only) in
the instrument cluster has been illuminated
for the above condition, it will remain
illuminated until the engine was cycled on
and off four times in a row.
AdBlue ® (diesel engine only)
The BlueTEC exhaust gas aftertreatment
system requires a reducing agent (AdBlue
® )
in order to function properly. Refilling with
AdBlue
® is part of the regular maintenance
service work. A tankful of AdBlue ® should
suffice until the next maintenance service
under normal driving conditions.
When the AdBlue
® tank is low, the message
Check Additive see Operator’s
Manual appears in the multifunction display.
When the AdBlue ® level drops to the
minimum level, the message Remaining
Starts: 20 appears in the multifunction
display.
i When the message Remaining Starts:
20 appears in the multifunction display, you
can start the engine 20 more times. If you
do not add AdBlue
® , the engine cannot be
started beyond that point. Fill the
AdBlue
® tank with approximately 1 gal
(3.79 l) AdBlue ® (corresponds to
approximately 2 AdBlue ® refill containers)
or have the AdBlue ® tank filled by an
authorized Mercedes-Benz Center.
Practical hints