Page 440 of 565

Note
s on fuel consum ption
+ ENVIRONMENTAL
NOTEIncreased CO
2
‑emissions due toinc reased fuel con‐
sum ption Yo
ur vehicle's CO
2‑emissions are di
rectly
re lated tofuel consum ption. #
You can minimise your vehicle's CO
2
emissions bydriving carefully and hav‐
ing your vehicle serviced regular ly. %
Only for cer tain countries: you can find the
cur rent consu mption and emission values of
yo ur vehicle in theCO C documents (EU CER‐
TIFIC ATE OF CONFORMITY). These docu‐
ments are deli vered with your vehicle.
The consum ption figures weredeterm ined,
based on the cur rently applicable version of
th est andard:
R Vehicles that comply with standards up
to and including the EURO 4 standard:
EU Directive RL80/1268/EEC R
Vehicles that comply with or exceed the
EURO 5 standard: Regulation (EC) No.
71 5/2007
Ta nk capacity and reser vefuel le vel
The total capacity of the fuel tank may vary,
depending on theve hicle equipment.
Fi lling capacity Model
Total capacity
E 400 4M ATIC 66.0 l
or
80.0 l
All other models 50.0 l
or
66.0 l Model
Of whichreser ve
fuel
All model s7 .0 l Ad
blue ® Note
s onAdBlue ®
Obser vethe no tes on operating fluids
(→ page 433).
Ad Blue ®
is a wate r-soluble fluid forth eex haust
ga s af tertre atment of diesel engines.
* NO
TEDama gecaused bydiluting or mix‐
ing additives with AdBlue ® Diluting or mixing additives wi
th AdBlue®
can
destr oythe BlueTEC exhaust gas af tertre at‐
ment sy stem. #
Only use AdBlue ®
in acco rdance with
ISO 22 241. #
Do not use additives. #
Do not dilu teAd Blue ®
. Te
ch nical da ta437
Page 478 of 565
Display messages
Possible causes/consequences and M
MSolutions
# Stop vehicle Leave engine
running *T
he battery charge leve l is too lo w. #
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. #
Start the engine. #
Wait until the display message disappears before pulling away.
4 Check eng. oil lev. when
next refuelling *T
he engine oil le vel has dropped tothe minimum le vel.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
Check the engine oil le vel when next refuelling.
To p up the engine oil (→ page377).
No tes on engine oil (→ page 438). Display messages and
warning/indicator lamps 475
Page 480 of 565
Display messages
Possible causes/consequences and M
MSolutions
4 Add 1 litre engine oil when
next refuelling *D
isplay message only with cer tain engines:
The engine oil le vel has dropped tothe minimum le vel.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil #
Avoid long journe yswith insuf ficient engine oil. #
Check the engine oil le vel when next refuelling.
To p up the engine oil (→ page377).
No tes on engine oil (→ page 438).
4 Engine oil pressure Stop
Switch off engine *D
isplay message only with cer tain engines:
The engine oil pressure is too lo w.
* NO
TEEngine dama gecaused bydriving with insuf ficient engine oil pressure #
Avoid long journe yswith insuf ficient engine oil pressure. #
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. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 477
Page 482 of 565
Display messages
Possible causes/consequences and M
MSolutions
8 Reserve fuel level *T
he fuel le vel has dropped into there ser verange. #
Refuel.
Ø
Eng. start not possible in
XXX mi *
The AdBlue ®
sy stem is malfunctioning. #
Consult a qualified specialist workshop immediatel y.
¸
Replace air cleaner *
Ve hicles with a diesel engine: the engine air filter is dirty and must be replaced. #
Consult a qualified specialist workshop.
Ø Eng. start not possible *
The AdBlue ®
sy stem is malfunctioning. You can no lon gerst art the engine. #
Consult a qualified specialist workshop immediatel y. Displ
aymessa ges and warning/indicator lamps 47 9
Page 483 of 565
Display messages
Possible causes/consequences and M
MSolutions
Ø Refill AdBlue No start in
XXX mi *
The AdBlue ®
leve l is only suf ficient forth e displa yed dis tance. #
Refill Ad Blue ®
immediately .
% The message disappea rsafte r driving at a speed abo ve15 km/h for appro ximately one minu te.
# Start engine See Owner's
Manual *T
he engine is off and the battery charge leve l is too lo w. #
Switch off electrical consumers that are not required. #
Lea vethe engine running for a few minutes, or drive for a longer dis tance.
The battery charge s.
!
Clean the fuel filter *
Ve hicles with a diesel engine: thewate r inthe fuel filter must be drained off. #
Consult a qualified specialist workshop. 480
Display messages and warning/indicator lamps
Page 499 of 565

Display messages
Possible causes/consequences and M
MSolutions
& inoperative Battery low *T
he on-board electrical sy stem voltage is too lo w.
The stationary heater has swit ched itself off. #
Drive a long dis tance until the battery has reached a suf ficient charge leve l again.
& inoperative Refuel vehicle *T
here is too little fuel in the fuel tank. The stationary heater cannot be swit ched on. #
Refuel theve hicle.
Active bonnet malfunction
See Owner's Manual *T
he active bonnet (pedestrian pr otection) is malfunctioning or inoperative af ter having already been triggered. #
Consult a qualified specialist workshop.
& inoperative See Owner's
Man. *T
hestationary heater is temp orarily malfunctioning. #
When theve hicle is on a le vel sur face and the engine has cooled down, make up tofour attem ptsto switch on
th est ationary heater, waiting se veral minutes between each attem pt. #
Ifth est ationary heater does not swit chon, consult a qualified specialist workshop. 496
Display messages and warning/indicator lamps
Page 505 of 565

Instrument display (standard)
Instrument display in
the widescreen cockpit Prog
ressive setting (widescreen cockpit) If
yo u select the progressive display setting in
ve hicles with a widescreen cockpit, the position
of the indicator lamps in the instrument display
ch anges.
Wa rning and indicator lamps:
L Dipped beam (→
page131)
T St
anding lights (→ page131)
K Main beam (→
page133)
#! Tu
rn signal light (→ page133)
R Re
ar fog light (→ page131) ü
Seat belt is not
fastened
(→ page 509)
J Brakes (red) (→
page 503)
! ABS malfunction (→
page 503)
÷ ESP®
(→ page 503)
å ESP®
OFF (→ page 503)
! Elect
ric pa rking brake(→ page 503)
Ð St
eering assis tance malfunction
(→ page 511)
# Electrical
fault (→ page513)
6 Re
stra int sy stem (→ page 503)
; Engine diagnosis (→
page513)
8 Fu
elreser vewith fuel filler cap loca‐
tion indicator (→ page513)
? Coolan
tto o hot/cold (→ page513)
· Dis
tance warning (→ page510)
% Preglow
h Ty
re pressure monitoring sy stem
(→ page 516)
j Tr
ailer hit chis not operational or is
swivelling (→ page511) 502
Displaymessa ges and warning/indicator lamps
Page 516 of 565

Engine
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
; Engine diagnosis warning
lamp The
yellow engine diagnosis warning lamp is lit while the engine is running.
A malfunction has occu rred in the engine, theex haust sy stem or the fuel sy stem.
The emission limit values may be exceeded and the engine may be running in emergency operation mode. #
Have theve hicle checked as soon as possible at a qualified specialist workshop.
Ve hicles with a diesel engine: the fuel tank has been run dr y. #
Start the engine thre eto four times af terre fuelling.
If th eye llow engine diagnosis warning lamp goes out, emer gency operation mode is cancelled. The vehicle need not
be checked.
# Elect rical fault warning
lamp The
red elect rical fault warning lamp is lit.
There is a fault in the electrics. #
Obser vethe messages in the multifunction displa y.
8
Fu elreser vewarning lamp The
yellow fuel reser ve wa rning lamp is lit while the engine is running.
The fuel le vel has dropped into there ser verange. #
Refuel. Displ
aymessa ges and warning/indicator lamps 513