Page 498 of 589
Display messages
Possible causes/consequences and 0050
0050Solutions
Po ssible causes:
R dirt on the windscreen in the camera's field of vision
R heavy rain, snow or fog
Driving sy stems and driving saf ety sy stems may be malfunctioning or temp orarily una vailable.
Once the cause of the problem is no longer present, driving sy stems and driving saf ety sy stems will be available
again.
If th e display message does not disappear: 0007
Pull over and stop theve hicle, paying attention toroad and traf fic conditions. 0007
Clean the windscreen. Engine
Display messages
Possible causes/consequences and 0050 0050Solutions
003D See Owner's Manual *T
he battery is not being charge d.
000E NO
TEPossible engine damage if you continue driving 0007
Do not continue driving under any circum stances. 0007
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 495
Page 499 of 589

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. 0007
Consult a qualified specialist workshop.
003A Clean the fuel filter *
Ve hicles with diesel engines: the fuel filter is dirty or thewate r inthe fuel filter needs tobe drained. 0007
Consult a qualified specialist workshop.
Top up coolant See Own-
er’s Manual *T
he coolant le vel is too lo w.
000E NO
TEEngine dama gedue toinsuf ficient coolant 0007
Avoid long journe yswith insuf ficient coolant. 0007
Add coolant (0013 page 394).
003D
Stop vehicle Leave engine
running *T
he battery charge leve l is too lo w. 0007
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. 0007
Lea vethe engine running. 0007
Wait until the display message disappears before pulling away. 496
Display messages and warning/indicator lamps
Page 500 of 589

Display messages
Possible causes/consequences and 0050
0050Solutions
009E Replace air cleaner *
Ve hicles with diesel engines: the engine air filter is dirty and must be replaced. 0007
Consult a qualified specialist workshop.
003D 12 V battery See Owner's
Manual *T
he engine is off and the battery charge leve l is too lo w. 0007
Switch off electrical consumers that are not required. 0007
Lea vethe engine running for a few minutes, or drive for a longer dis tance.
The battery will charge.
If th e message appears while the engine is running, this indicates an on-board elect rical sy stem malfunction. 0007
Consult a qualified specialist workshop.
003D Stop vehicle See Owner's
Manual *T
he battery is no longer being charge d and the battery charge leve l is too lo w.
000E NO
TEPossible engine damage if you continue driving 0007
Do not continue driving under any circum stances. 0007
Consult a qualified specialist workshop. 0007
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. 0007
Switch off the engine. 0007
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 497
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Display messages
Possible causes/consequences and 0050
0050Solutions
Cannot start engine See
Owner's Manual *T
hecharge leve l of the 48 V battery is too lo w.You can no lon gerst art the engine. 0007
Switch off electrical consumers that are not required. 0007
Connect a suitable charge r appro vedby Mercedes-Benz with suf ficient charge output tothe jump-s tart connec‐
tion point of the12 V battery (0013 page 420).
The 48 V battery is charge d via thevo ltage con verter in theve hicle.
Motor can be started again *T
he 48 V battery has been charge d automatically via thevo ltage con verter. 0007
Start the engine and drive theve hicle for a while tocharge the12 V battery and the 48 V batter y.
00AC *T
hefan mo tor is defective. 0007
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C.
00AC
Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. 000A
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. 0007
Before opening the bonn et, allow the engine tocool down. 0007
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. 498
Display messages and warning/indicator lamps
Page 502 of 589

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
Wait until the engine has cooled down. 0007
Make sure that the air supply tothera diator is not obstructed. 0007
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C.
00D7
Please wait Charging high-
voltage battery *T
he 48 V battery is dischar ged. You ha veswitched on the ignition while the12 V battery was being charge d with a
suitable charge r or while ano ther vehicle was pr oviding starting assis tance.
The discha rged 48 V battery is charge d automatically via thevo ltage con verter. Af ter a few minutes, theMotor can
be started again display message will be shown on the multifunction displa y. 0007
Start the engine. 0007
Drive theve hicle for a while tocharge the12 V battery and the 48 V battery af ter disconnecting thech arger
from theve hicle.
If th eMotor can be started again display message does not appear af ter a few minutes: 0007
Tryto start the engine again. 0007
Ifth e engine does not start, consult a qualified specialist workshop.
003D
48 V battery See Owner's
Manual *T
he 48 V sy stem is malfunctioning. Con venience functions may be restricted. 0007
Consult a qualified specialist workshop immediatel y. Displ
aymessa ges and warning/indicator lamps 499
Page 503 of 589
Display messages
Possible causes/consequences and 0050
0050Solutions
00B6 Reserve fuel level *T
he fuel supply has dropped into there ser verange. 0007
Refuel. Engine oil
Display messages
Possible causes/consequences and 0050
0050Solutions
00B3 Engine oil level cannot be
measured *T
he electrical connection tothe oil le vel sensor has been inter rupte d or the oil le vel sensor is faulty. 0007
Consult a qualified specialist workshop.
00B2 Engine oil level Reduce oil
level *D
isplay message only for cer tain engines:
The engine oil le vel is too high.
000E NO
TEEngine dama gecaused bydriving with excess engine oil 0007
Avoid long journe yswith excess engine oil. 0007
Consult a qualified specialist workshop immediately and ha vethe engine oil siphoned off. 500
Display messages and warning/indicator lamps
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Display messages
Possible causes/consequences and 0050
0050Solutions
00B2 Engine oil level Stop vehi-
cle Switch engine off *D
isplay message only for cer tain engines:
The engine oil le vel is too lo w.
000E NO
TEEngine dama gecaused bydriving with insuf ficient engine oil 0007
Avoid long journe yswith insuf ficient engine oil. 0007
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. 0007
Switch off the engine. 0007
Add 1 l engine oil. 0007
Check the engine oil le vel.
To p up engine oil (0013 page 392).
No tes on engine oil (0013 page 464).
00B2
Engine oil pressure Stop
Switch off engine *D
isplay message only for cer tain engines:
The engine oil pressure is too lo w.
000E NO
TEEngine dama gecaused bydriving with insuf ficient engine oil pressure 0007
Avoid driving with insuf ficient engine oil pressure. Display messages and
warning/indicator lamps 501
Page 505 of 589

Display messages
Possible causes/consequences and 0050
0050Solutions 0007
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. 0007
Consult a qualified specialist workshop.
00B2 Add 1 litre engine oil when
next refuelling *D
isplay message only for cer tain engines:
The engine oil le vel has dropped tothe minimum le vel.
000E NO
TEEngine dama gecaused bydriving with insuf ficient engine oil 0007
Avoid long journe yswith insuf ficient engine oil. 0007
When next refuelling, add 1 litre of engine oil.
To p up engine oil (0013 page 392).
No tes on engine oil (0013 page 464).
00B2
Check eng. oil lev. when
next refuelling *T
he engine oil le vel has dropped tothe minimum le vel.
000E NO
TEEngine dama gecaused bydriving with insuf ficient engine oil 0007
Avoid long journe yswith insuf ficient engine oil. 0007
Check the engine oil le vel when next refuelling.
To p up the engine oil (0013 page 392).502
Display messages and warning/indicator lamps