
Display messagesPossible causes/consequences and0050Solutions
00DF(USA
only)
0025(Canada
only)
System Inoperative
ABS is malfunctioning. This means that ESP®, Crosswind Assist and
hill start assist, for example, are also unavailable.
Further driving systems could be switched off automatically.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XDrive on carefully.
XVisit a qualified specialist workshop.
If the ABS control unit is faulty, there is also a possibility that
other systems may be unavailable.
00E5
System Inoperative
ESP®is not available due to a malfunction.
Further driving systems could be switched off automatically.
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.
The brake lamps may not be functioning and thus no longer working
when braking.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driv-
ing under any circumstances.
XSecure the vehicle against rolling away (Ypage 100).
XCheck that the brake lamps are working.
If the brake lamps are not working:
XConsult a qualified specialist workshop.
If the brake lamps are working:
XDrive on carefully.
XVisit a qualified specialist workshop.
Display messages121
>> On-board computer and displays.
Z

Driving systems
Display messagesPossible causes/consequences and0050Solutions
0085
CruiseControlInop‐erative
The0085 symbol in the display footer also flashes for approx-
imately 10 seconds and a warning tone sounds. The symbol is then
hidden.
Cruise control is malfunctioning and deactivated automatically.
XVisit a qualified specialist workshop.
Tires
Display messagesPossible causes/consequences and 0050Solutions
0077
Warning Tire Fail‐ure Correct TirePressure
The tire pressure in one or more tires has dropped suddenly.
GWARNING
If you drive with a flat tire, there is a risk of the following haz-
ards:
RA flat tire affects the ability to steer or brake the vehicle.
RYou could lose control of the vehicle.
RContinued driving with a flat tire will cause excessive heat
build-up and possibly a fire.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 100).
XCheck the tires and, if necessary, follow the instructions for a
flat tire (Ypage 161).
0077
Tire Pressure Moni‐tor Inoperative
The tire pressure monitor is malfunctioning or was not restarted
after a wheel change.
GWARNING
The system is possibly unable to recognize or register low tire
pressure.
There is a risk of an accident.
XRestart the tire pressure monitor after a wheel change
(Ypage 185)
The tire pressure monitor is activated automatically after
driving for a few minutes.
If the display message continues to be displayed:
XDrive on carefully.
XVisit a qualified specialist workshop.
126Display messages
>> On-board computer and displays.

Display messagesPossible causes/consequences and0050Solutions
0077
Tire Pressure Moni‐tor InoperativeWheel Sensors Miss‐ing
There is no signal from the tire pressure sensor of one or several
wheels, or the wheels fitted do not have suitable tire pressure
sensors. The tire pressure monitor was not restarted after a wheel
change.
GWARNING
The system is possibly unable to recognize or register low tire
pressure.
There is a risk of an accident.
XHave the faulty tire pressure sensor replaced at a qualified
specialist workshop.
or
XMount wheels with suitable tire pressure sensors.
or
XRestart the tire pressure monitor after a wheel change
(Ypage 185)
The tire pressure monitor is activated automatically after
driving for a few minutes.
If the display message continues to be displayed:
XDrive on carefully.
XVisit a qualified specialist workshop.
0077
Correct Tire Pres‐sure
The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 183).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 185).
Display messages127
>> On-board computer and displays.
Z

Safety systems
ProblemPossible causes/consequences and0050Solutions
0075
The red restraint sys-
tem warning lamp is lit
while the engine is
running.The restraint system is faulty.
GWARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
XDrive on carefully.
XHave the restraint system checked at a qualified specialist
workshop immediately.
For further information about the restraint system, see
(
Ypage 29).
0027 (USA only)
004D (Canada only)
00E50025
The red brake system
warning lamp, the yel-
low ESP
®warning lamp
and the yellow ABS
warning lamp light up
while the engine is
running.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The front and rear wheels could therefore
lock if you brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driv-
ing under any circumstances.
XSecure the vehicle against rolling away (Ypage 100).
XConsult a qualified specialist workshop.
0027 (USA only)
004D (Canada only)
The red brake system
warning lamp comes on
while the vehicle is
moving. A warning tone
also sounds.You are driving with the parking brake engaged.
XRelease the parking brake.
The warning lamp goes out and the warning tone ceases.
132Warning and indicator lamps in the instrument cluster
>> On-board computer and displays.

ProblemPossible causes/consequences and0050Solutions
0027(USA only)
004D (Canada only)
The red brake system
warning lamp comes on
while the engine is
running. A warning
tone also sounds.There is not enough brake fluid in the brake fluid reservoir.
GWARNING
The braking effect may be impaired.
There is a risk of an accident.
XObserve the additional display messages.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driv-
ing under any circumstances.
XSecure the vehicle against rolling away (Ypage 100).
XDo not add brake fluid. Adding more will not remedy the mal-
function.
XConsult a qualified specialist workshop.
0027 (USA only)
004D (Canada only)
The red brake system
warning lamp comes on
while the engine is
running. A warning
tone also sounds.EBD (electronic brake force distribution) is malfunctioning. This
means that ABS, ESP®, Crosswind Assist and hill start assist, for
example, are also unavailable.
Other driving systems could be switched off automatically.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock early if
you brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driv-
ing under any circumstances.
XSecure the vehicle against rolling away (Ypage 100).
XConsult a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster133
>> On-board computer and displays.
Z

ProblemPossible causes/consequences and0050Solutions
0025
The yellow ABS warning
lamp is lit while the
engine is running.ABS is malfunctioning. This means that ESP®, Crosswind Assist and
hill start assist, for example, are also unavailable.
Other driving systems could be switched off automatically.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XDrive on carefully.
XVisit a qualified specialist workshop.
If the ABS control unit is faulty, there is also a possibility that
other systems may be unavailable.
00E5
The yellow ESP®warn-
ing lamp is on when you
are driving.
In addition, the \
door warning lamp and
other warning lamps,
e.g. 0077, light up.
The central vehicle electronics system is malfunctioning.
After the engine is switched off:
Rdo not lock/unlock the doors using the remote control function of
the key
Ryou can no longer start the engine.
XObserve the additional display messages in the display.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driv-
ing under any circumstances.
XSecure the vehicle against rolling away (Ypage 100).
XConsult a qualified specialist workshop.
00E5
The yellow ESP®warn-
ing lamp flashes while
the vehicle is in
motion.
ESP®or traction control has intervened because there is a risk of
skidding or at least one wheel has started to spin.
Cruise control is automatically deactivated.
XWhen pulling away, only depress the accelerator pedal as far as
necessary.
XEase off the accelerator pedal while the vehicle is in motion.
XAdapt your driving style to suit the road and weather condi-
tions.
134Warning and indicator lamps in the instrument cluster
>> On-board computer and displays.

ProblemPossible causes/consequences and0050Solutions
0077
The yellow tire pres-
sure monitor warning
lamp (pressure loss/
malfunction) flashes
for approximately
1 minute and then
remains lit.There is no signal from the tire pressure sensor of one or several
wheels, or the wheels fitted do not have suitable tire pressure
sensors. The tire pressure monitor was not restarted after a wheel
change.
GWARNING
The system is possibly unable to recognize or register low tire
pressure.
There is a risk of an accident.
XObserve the additional display messages in the display.
XHave the faulty tire pressure sensor replaced at a qualified
specialist workshop.
or
XMount wheels with suitable tire pressure sensors.
or
XRestart the tire pressure monitor after a wheel change
(Ypage 185)
The tire pressure monitor is activated automatically after
driving for a few minutes.
If the yellow tire pressure monitor warning lamp continues to
remain on:
XDrive on carefully.
XVisit a qualified specialist workshop.
0077
You are driving and the
yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) is lit.The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 183).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 185).
140Warning and indicator lamps in the instrument cluster
>> On-board computer and displays.

Information on the type of service and ser-
vice intervals (see the separate Maintenance
Booklet).
For further information inquire at any smart
center or look under
http://www.smartUSA.com (only USA).
iThe service display does not show any
information on the engine oil level.
Observe the notes on the engine oil level
(
Ypage 150).
Whenever a service is due, this is shown
approximately 30 days or 1500 km (1000 miles)
beforehand. After starting the engine, a ser-
vice message appears in the instrument clus-
ter display for a few seconds; see the follow-
ing example.
Next
Servicein.. Daystogether with the
0099 or009A symbol. If the service due date
has been exceeded, Service Due .. Days
Ago.
The symbol shows the type of service. 0099
stands for a minor service and 009Afor a
major service.
The service display does not take into
account any periods of time during which the
battery is disconnected.
Maintaining the time-dependent service
schedule:
XNote down the service due date in the ser-
vice display before disconnecting the bat-
tery.
or
XAfter reconnecting the battery, subtract
the battery disconnection periods from the
service date shown on the display.
Hiding a service message
XPress the 0076button on the multifunction
steering wheel.
Calling up the service display
XSwitch on the ignition.
XPress the 0063or0064 button on the steer-
ing wheel to select the MessagesandSer‐vicemenu.
The service display shows when the service
is due.
Information about Service
Resetting the service display
!Have service work carried out as descri-
bed in the Maintenance Booklet. This may
otherwise lead to increased wear and dam-
age to the major assemblies or the vehicle.
A qualified specialist workshop, e.g. a smart center, will reset the service interval dis-
play after the service work has been carried
out. You can also obtain further information
on maintenance work, for example.
Special service requirements
The prescribed service interval is based on
normal operation of the vehicle. Service work
will need to be performed more often if the
vehicle is operated under arduous conditions
or increased loads, for example:
Rregular city driving with frequent inter-
mediate stops
Rif the vehicle is primarily used to travel
short distances
Rfor frequent operation in mountainous ter-
rain or on poor road surfaces
Rif the engine is often left idling for long
periods
In these or similar operating conditions,
have, for example, the air filter, engine oil
and oil filter changed more frequently. The
tires must be checked more frequently if the
vehicle is operated under increased loads.
You can obtain further information at a
qualified specialist workshop, e.g. a smart
center.
Driving abroad
An extensive smart service network is also
available in other countries. For further
information inquire at any smart center.
Care
General notes
HEnvironmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible
manner.
154Care
>> Maintenance and care.