2016 MERCEDES-BENZ METRIS engine

Seat belts
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
üNAfter startin gthe engine, the red seat belt warning lamp lights up or flashes. A
warning tone may also sound.
Only for certain countries: the red seat belt warning lamp lights up for amaximum
of 6s econds after the ignition is switched on.
The seat belt warning lamp reminds the driver and front passenger to fasten their
seat belts.
XFasten seat belt (Ypage 46).
üN The red seat belt warning lamp lights up after the engine starts, as soon as the
driver's or the front-passenger door is closed.
The driver or front passenger has not fastened their seat belt.
XFasten seat belt (Ypage 46).
The warning lamp goes out.
On vehicles with the Occupant Classification System (OCS), there are object son
the front-passenger seat.
XRemove the object sfrom the front-passenger seat and store them in asafe
place.
The warning lamp goes out.
üN The red seat belt warning lamp flashes and an intermittenta udible warning
sounds.
The driver or front passenger has not fastened their seat belt. At the same time, you
are driving faster than 15 mph (25 km/h) or have briefly driven faster than 15 mph
(25 km/h).
XFasten seat belt (Ypage 46).
The warning lamp goes out and the intermittenta udible warning ceases.
On vehicles with the Occupant Classification System (OCS), there are object son
the front-passenger seat. At the same time, you are driving faster than 15 mph
(25 km/h) or have briefly driven faster than 15 mph (25 km/h).
XRemove the object sfrom the front-passenger seat and store them in asafe
place.
The warning lamp goes out and the intermittentw arning tone ceases.
Indicator and warning lampsinthe instrument cluster219
On-board computer and displays
Z

Safety systems
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
$J
òN$ (USA only) or J(Canada only): the ABS and brake warning lamps are
lit while the engine is running.
EBD is unavailable due to amalfunction .ABS ,BAS,h ill start assist and ESP
®as well
as its driving safety systems, for example, are therefore also unavailable.
ATTENTION ASSIST is deactivated and other driving systems could be automati-
cally deactivated.
GWARNING
The brake system continues to function normally, but without the functions listed
above. The wheels could therefore lock prematurely if you brake hard, for example.
This causes steerability and braking to be greatly impaired. The braking distance
can increase in emergency braking situations.
If ESP
®is not operational, ESP®will not stabilize the vehicle.
There is an increased risk of skidding and accidents.
XObserve the display messages.
XDrive on with care.
XVisit aqualified specialist workshop immediately.
$JNThe red $(USA only) or J(Canada only) brake system warning lamp is lit
while the engine is running. An additional warning tone sounds.
There is insufficient brake fluid in the brake fluid reservoir.
GWARNING
Braking performancec an be impaired.
There is arisk of an accident.
XStop the vehicle immediately, paying attention to road and traffic conditions. Do
not continue driving under any circumstances.
XSecure the vehicle to prevent it from rolling away (Ypage 132).
XDo not add brake fluid. Adding more will not remedy the malfunction.
XConsult aqualified specialist workshop.
XObserve the display messages.
220Indicator and warning lamp sinthe instrument cluster
On-board computer and displays

Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
ò!NThe yellow ABS warning lamp is lit while the engine is running.
ABS has been deactivated due to amalfunction. BAS, hil lstart assist and ESP®as
wel lasi ts driving safety systems ,for example, are therefore als odeactivated.
ATTENTION ASSIST is deactivated and other driving systems coul dbeautomati-
call ydeactivated.
GWARNING
The brake system continues to function normally, but without the functions listed
above. The wheels coul dtherefore lock prematurely if you brake hard ,for example.
This causes steerability and braking to be greatly impaired .The braking distance
can increas einemergency braking situations.
If ESP
®is not operational ,ESP®wil lnot stabilize the vehicle.
There is an increased risk of skidding and accidents.
XObserve the display messages.
XDrive on with care.
XVisi taq ualified specialist worksho pimmediately.
If the ABS control unit is faulty, there is als oapossibility that other systems ,such
as the automatic transmission, wil lberestricted or unavailable.
÷NThe yellow ESP®warning lamp flashes while the vehicleisinm otion.
ESP®or traction control is intervening because there is arisk of skidding or at least
one whee lhas started to spin.
Cruise control is automatically deactivated.
XWhen starting off, do not depress the accelerator pedalm ore than is necessary.
XEase off the accelerator pedalwhile driving.
XAdapt yourdriving style to sui tthe weather and road conditions.
XDo not deactivate ESP®.
In rare cases ,itmay be best to deactivate ESP®(Ypage64).
÷NThe yellow ESP®warning lamp is lit while the engine is running.
ESP®,B AS, hil lstart assist, ESP®trailer stabilization and Crosswind Assist are
unavailable due to amalfunction.
ATTENTION ASSIST is deactivated and other driving systems coul dbeautomati-
call ydeactivated.
GWARNING
The brake system continues to function normally, but without the functions listed
above.
The braking distance in an emergency braking situation can thus increase.
If ESP
®is not operational ,ESP®wil lnot stabilize the vehicle.
There is an increased risk of skidding and accidents.
XObserve the display messages.
XDrive on with care.
XVisi taq ualified specialist worksho pimmediately.
Indicator and warning lamps in the instrument cluster221
On-board computer and displays
Z

Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
åNThe yellow ESP®OFF warning lamp is lit while the engine is running or the ECO
start/stop function is activated.
ESP
®is deactivated. ESP®trailer stabilization and Crosswind Assist are deacti-
vated.
GWARNING
If ESP
®is deactivated, vehicles tabilization assistance is significantly reduced.
There is an increased risk of skidding and accidents.
XReactivate ESP®.
In rare cases ,itmay be best to deactivate ESP®(Ypage64).
XAdapt you rdriving style to sui tthe weather and road conditions.
If ESP
®cannot be activated:
XDrive on with care.
XHave ESP®checked at aqualified specialist workshop.
6NThe red restraint system warning lamp is lit while the engine is running.
The restraint system is faulty.
GWARNING
The air bag sorEmergency Tensioning Devices may either be triggere duninten-
tionally or, in the event of an accident, may not be triggered.
There is an increased risk of injury.
XObserve the display messages.
XDrive on with care.
XHave the restraint system and its components checked immediatel yataquali-
fied specialist workshop.
Further information on the restraint system and its components can be found
under "Occupant safety "(
Ypage43).
222Indicator and warning lamps in the instrument cluster
On-board computer and displays

Engine
Warning/
indicator
lampNSignaltype
Possible causes/consequences and M
Solutions
;NThe yellow CheckE nginew arning lamp lightsupw hile theengine is running.
Therem ay beamalfunction, for example:
Rin th eengine management
Rin th etransmission management
Rin th efuel injection system
Rin th eexhaust system
Rin th eignition system (for vehicle swithagasoline engine)
Rin th efuel system
The emission limit values may be exceeded and th eengine may be runnin gin
emergency mode.
XHav ethe vehicle checked as soon as possible at aqualified specialist workshop.
æNThe yellow reservef uel warning lamp is on while th eengine is running.
The fuel leve lhas dropped to th ereserver ange.
XRefuel at th enearest gas station.
?NThe red coolant warning lamp comes on while th eengine is running.
On vehicle swithout steering wheel buttons, th ecoolant temperatur egage is at the
start of th ebar display (
Ypage 172).
On vehicle swith steering wheel buttons ,the coolant temperatur egage is at the
start of th escale in th einstrumentc luster(
Ypage 37).
The temperatur esensor for th ecoolant temperatur egage is faulty.
The coolant temperatur eisnolonger beingm onitored. Thereisar isk of engine
damag eifthecoolant temperatur eistoohigh.
XStop th evehicle immediately, payinga ttention to road and traffic conditions,
and switch off th eengine .Don otcontinue driving unde rany circumstances.
XSecure th evehicle to prevent it from rolling away (Ypage 132).
XConsult aqualified specialist workshop.
Indicator and warning lamps in th einstrumen tcluster223
On-boardc omputer and displays
Z

Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
?NThe red coolant warning lamp comes on while the engine is running.
The coolant leve listoo low.
If the coolant leve liscorrect, the airflow to the engine radiator may be blocked or
the electric engine radiator fan may be malfunctioning.
The coolant is too hot and the engine is no longer being cooleds ufficiently.
XObserve the display messages.
XStop the vehicleimmediately, paying attention to road and traffic conditions,
and switch off the engine.
XSecure the vehicletop revent it from rolling awa y(Ypage132).
XExit the vehiclea nd keepasafe distance from the vehicleu ntil the engine has
cooledd own.
XCheck the coolant leve land add coolant, observing the warning notes
(Ypag e244).
XIf you have to add coolant more frequently, have the engine cooling system
checked.
XMake sure that the air supply to the radiator is not obstructed ,byfrozen slush
for example.
XCheck the coolant temperature:
Rusing the display in the on-board computer on vehicles without steering wheel
buttons (Ypag e172)
Rusing the analog display in the instrument cluster on vehicles with steering
whee lbuttons (Ypag e37)
XDo not start the engine again until the coolant temperature is below the maxi-
mum valu especified below. The engine coul dotherwise be damaged.
XDrive to the neares tqualified specialist workshop.
Avoid heavy loads on the engine, e.g. driving in mountainous terrain, and stop-
and-go traffic.
Under normal operating conditions and with the specified coolant level, the cool-
ant temperature gage may rise to 248 ‡(120 †).
?NThe red coolant warning lamp comes on while the engine is running. An addi-
tional warning tone sounds.
The coolant temperature has exceededt he maximumvaluespecified below. The
airflow to the engine radiator may be blocked or the coolant leve lmay be too low.
GWARNING
The engine is not being cooleda dequately and couldbecome damaged.
Never drive with an overheated engine. Otherwise, fluids which may have leaked
into the engine compartment coul dcatch fire.
In addition, steam from an overheated engine can caus eserious burns, which can
occur just by opening the hood.
There is arisk of injury.
XObserve the display messages.
XStop the vehiclei mmediately, paying attention to road and traffic conditions,
and switch off the engine.
XSecure the vehicletop revent it from rolling awa y(Ypage 132).
224Indicator and warning lamps in the instrument cluster
On-board computer and displays

Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
XExit the vehicleand keepasafe distance from the vehicleu ntil the engine has
cooledd own.
XCheck the coolant leve land add coolant, observing the warning notes
(Ypag e244).
XIf you have to add coolant more frequently, have the engine cooling system
checked.
XMake sure that the air supply to the radiator is not obstructed ,byfrozen slush
for example.
XCheck the coolant temperature:
Rusing the display in the on-board computer on vehicles without steering wheel
buttons (Ypag e172)
Rusing the analog display in the instrument cluster on vehicles with steering
whee lbuttons (Ypag e37)
XIf the coolant temperature is below the maximu mvaluespecified below, you can
continue driving to the neares tqualified specialist workshop.
Avoid heavy loads on the engine, e.g. driving in mountainous terrain, and stop-
and-go traffic.
Under normal operating conditions and with the specified coolant level, the cool-
ant temperature gage may rise to 248 ‡(120 †).
Driving systems
Warning/
indicator
lampNSignal type
Possiblec auses/consequences and M
Solutions
·NThe red distance warning lamp lights up while the vehicleisinm otion.
The distance to the vehicleinf ront is too smallfor the speeds elected.
XIncrease the distance.
·NThe red distance warning lamp lights up while the vehicleisinm otion. An
additiona lwarning tone sounds.
You are approaching avehicl eoras tationary obstacl einyourline of travel at too
high aspeed.
XBe prepared to brake immediately.
XPay particular attention to the traffic situation. You may have to brake or take
evasive action.
Further information about the distance warning function can be found under
"COLLISION PREVENTION ASSIST" (
Ypag e143).
Indicator and warning lamps in the instrument cluster225
On-board computer and displays
Z

Vehicle
Warning/
indicator
lampNSignal type
Possibl ecauses/consequences and M
Solutions
ÐNThe red powe rsteering warning lamp is li twhile the engine is running .Anaddi-
tional warning tone sounds.
The steering powe rassis tance could be malfunctioning .You mayn eedtos teer
more forcefully.
XCarefull ycontinue to aquali fied specialist workshop and have the steering
checked immediately.
1N The yellow "door open" indicator lamp is lit.
Ad oorisn ot fully closed.
XClose the doors.
Indicator and warning lamps in the instrumen tcluster227
On-board computer and displays
Z