2014 MERCEDES-BENZ B-CLASS SPORTS stop start

Display messages Possible causes/consequences and
000B Solutions
PRE-SAFE
Functions
Currently Limited
See Owner'
sManual Adaptive Brake Assis
tistemporarily inoperative. Possible causes
are:
R the front bumper is dirty.
R function is impaired due to heavy rain or snow.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
When the causes stated above no longer apply,t he display
message disappears.
Adaptive Brake Assist is operational again.
If the displaym essage does not disappear:
X Pull over and stop the vehicle safely as soon as possible,p aying
attention to road and traffic conditions.
X Secure the vehicle against rolling away( Ypage 152).
X Cleant he front bumper (Y page 289).
X Restart the engine. PRE-SAFE
Functions Limited
See Operator's
Manual Adaptive Brake Assist is faulty. The distance warning signal may
also have failed.
X
Visit aqualified specialist workshop. 0021
SRS Malfunction
Service Required There is
amalfunction in the SRS (Supplemental Restraint
System). The 0021warning lamp also lights up in the instrument
cluster.
G WARNING
The air bags or EmergencyT ensioning Devices may either be
triggered unintentionally or, in the event of an accident, may not
be triggered.
There is an increased risk of injury.
X Visit aqualified specialist workshop.
Further information on occupant safety (Y page 40).216
Display messagesOn-board computer and displays

Engine
Display messages Possible causes/consequences and
000B Solutions
0014
Check Coolant
Level See
Operator'
sManual The coolant leve
listoolow.
! Avoid making lon gjou rneys with to olittle coolant in th eengine
cooling system. The engin ewill otherwise be damaged.
X Add coolant ,observing th ewarning note sbefore doin gso
( Ypage 283).
X If coolant needs to be added mor eoften than usual, have the
engin ecoolant system checked at aqualifie dspecialist
workshop. 0010 The fan motor is faulty.
X
At coolant temperatures below 24 8‡(120† ), driv etothe
neares tqualified specialist workshop.
X Avoid subjecting th eenginetoh eavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic. 0010
Coolant Too Hot
Stop Vehicle Turn
Engine Off The coolant is too hot.
Aw
arning tone also sounds.
G WARNING
Do no tdrive when youre ngine is overheated. Thi scan caus esome
fluids whic hmay have leaked int othe engin ecom partmen tto
catch fire.
Stea mfrom the overheated engine can alsoc auseserious burns
which can occur just by opening the hood.
There is arisk of injury.
X Pullo ver and stop the vehicl esafel yand switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicl eagainst rolling away (Y page152).
X Waitu ntil the engine ha scoole ddown.
X Make sure tha tthe air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the displaym essage goes out
and the coolant temperature is below 248 ‡(120 †).
Otherwise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit aqualified specialist
workshop immediately.
Under normal operating conditionsa nd with the specified coolant
level, the coolant temperature may rise to 248 ‡(120 †). 224
Display messagesOn-board computer and displays

Display messages Possible causes/consequences and
000B Solutions
Lan
eK eeping Assist Currently
Unavailable See
Operator'
sManual Lan
eKeepin gAssistisd eactivated and temporarily inoperative.
Possible causes are:
R the windshieldint he camera's field of vision is dirty.
R visibility is impaired due to heavy rain, snow or fog.
R there are no lane markings for alonger period.
R the lane markings are worn, dark or covered, e.g. by dirt or snow.
When the causes stated above no longer apply,t he display
message disappears.
Lane Keeping Assist is operational again.
If the displaym essage does not disappear:
X Pull over and stop the vehicle safely as soon as possible,p aying
attention to road and traffic conditions.
X Secure the vehicle against rolling away( Ypage 152).
X Cleant he windshield. Lane Keeping
Assist Inoperative Lane Keeping Assist is faulty.
X
Visit aqualified specialist workshop. Blind Spot Assist
Currently
Unavailable See
Operator's Manual Blind Spot Assist is temporarily inoperative. Possible causes are:
R
the sensors are dirty.
R function is impaired due to heavy rain or snow.
R the radar sensor system is outside the operating temperature
range.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
The yellow 0006indicator lamps also light up in the exterior
mirrors.
When the causes stated above no longer apply,t he display
message disappears.
Blind Spot Assist is operational again.
If the displaym essage does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 152).
X Cleant he sensors (Y page 289).
X Restart the engine. Display messages
227On-board computer and displays Z

Display messages Possible causes/consequences and
000B Solutions
Blind Spo
tAssist Inoperative Blind Spot Assis
tisdefective.
The yellow 0006indicator lamps also light up in the exterior
mirrors.
X Visit aqualified specialist workshop. Park Assist
Canceled The driver's door is open and the driver's seat belt has not been
fastened.
X
Repeatt he parking process with the seat belt fastened and the
driver's door closed. You have inadvertently touched the multifunction steering wheel
while steering intervention was active.
X
While steering intervention is active, make sure that the
multifunction steering wheel is not touched unintentionally. The vehicle has started to skid and ESP
®
has intervened.
X Use Active Parking Assist again later (Y page 175).Park Assist
Inoperative You have just carried out
alarge number of turning or parking
maneuvers.
Active Parking Assist will become available again after
approximately ten minutes (Y page 175).
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Switch off and restart the engine.
If the displaym essage continues to be displayed:
X Visit aqualified specialist workshop. PARKTRONIC is defective.
X
Visit aqualified specialist workshop. DISTRONIC PLUS Off DISTRONIC PLUS has been deactivated (Y
page 162). If it was
deactivated automatically ,awarning tone also sounds. DISTRONIC PLUS Now
Available DISTRONIC PLUS is operational again after having been
temporarily unavailable. You can now reactivate DISTRONIC PLUS
(Y
page 162). 228
Display messagesOn-board computer and displays

Tires
Display messages Possible causes/consequence
sand 000B Solutions
Tir
ePressure Check Tires Canad
aonly:
The tire pressure loss warnin gsystem has detecte dasignificant
los sinp ressure.
Aw arning tone also sounds.
G WARNING
Wit htirep ressure swhicha re to olow, there is ariskoft he
following hazards:
R they may burst, especiallyast he load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may greatly
impair tire traction.
R the driving characteristics, as well as steering and braking, may
be greatly impaired.
There is arisk of an accident.
X Stop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditionsasy ou do so.
X Secure the vehicle against rolling away (Y page 152).
X Check the tires and, if necessary, follow the instructions for a
flat tire (Y page 295).
X Check the tire pressures and, if necessary, correct the tire
pressure.
X Restart the tire pressure loss warning system when the tire
pressure is correct (Y page 319).Check Tire Pressure
Then Restart Run
Flat Indicator Canada only:
The tire pressure loss warning system generated
adisplay
message and has not been restarted since.
X Set the correct tire pressure in all four tires.
X Restart the tire pressure loss warning system (Y page 319).Run Flat Indicator
Inoperative Canada only:
The tire pressure loss warning system is faulty.
X
Visit aqualified specialist workshop. Correct Tire
Pressure The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
X
Check the tire pressures at the next opportunity (Y page 320).
X If necessary, correct the tire pressure.
X Restart the tire pressure monitor (Y page 322). Display messages
231On-board computer and displays Z

Display messages Possible causes/consequences and
000B Solutions
To Deselect
PorN Depres
sBrake and Start Engine You hav
eattempte dtos hift th etransmissio ntoposition Ror D
without starting the engine.
X Start the engine.
X Depress the brake pedal.
i It is only possible to shift the transmission from position Pto
the desired position if you depress the brake pedal. Only then
can the parking lock be deactivated. If you do not depress the
brake pedal, you can move the DIRECT SELECT lever but the
parking lock remains engaged.
i At transmission fluid temperatures below 000F4‡(000F20 †) you
can only shift out of position Pinto another transmission
position when the engine is running. Apply Brake to
Shift from 'P' You have attempted to move the transmission selector lever to
position
R,Nor Dwithout depressing the brake pedal.
X Depress the brake pedal. Transmission Not
in P
Risk of Vehicle
Rolling Away The driver's door is open and the transmission is in position
R,N
or D.
Aw arning tone also sounds.
X Shift th etransmission to position P.
X Secure th evehicle against rolling away ( Ypage 152). Servic
eRequired Do Not Shift Gears
Visit Dealer You canno
tchange the transmission position due to amalfunction.
Aw arning tone also sounds.
If transmission position Dis selected:
X Drive to aqualified specialist worksho pwithout shiftin gthe
transmission from position D.
If transmission position R,Nor Pis selected:
X Notify aqualified specialist worksho porbreakdown service. Onl
yS hift to 'P' whe
nV ehicle is Stationary The vehicle is moving.
X
Pull ove rand stop the vehicl esafelyass oonasp ossible,p aying
attention to road and traffic conditions.
X Shift the transmission to position P.Reversing Not
Possible Service
Required The automatic transmission is malfunctioning. You cannot back
up.
X
Visit aqualified specialist workshop. 234
Display messagesOn-board computer and displays

Safety systems
Problem Possible causes/consequences and
000B Solutions
0004
(USA only)
0001 (Canada only)
The red brake system
warning lamp comes on
while the engine is
running. Awarning tone
also sounds. There is not enough brake fluid in the brake fluid reservoir.
G WARNING
The braking effect may be impaired.
There is arisk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away (Y page 152).
X Do not add brake fluid. Adding more will not remedy the
malfunction.
X Consult aqualified specialist workshop.
X Observe the additional display messages in the multifunction
display. 001C
The yellow ABS warning
lamp is lit while the
engine is running.
ABS (Anti-lock Braking System) is deactivated due to a
malfunction
.Therefore, BAS (Brake Assist), COLLISION
PREVENTION ASSIST, COLLISION PREVENTION ASSIST PLUS,
ESP ®
(Electronic Stability Program), the HOLD function and hill
start assist, for example, are also deactivated.
ATTENTION ASSIST is deactivated.
G WARNING
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.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit aqualified specialist workshop.
If the ABS control unit is faulty, there is also apossibility that other
systems, such as the navigation system or the automatic
transmission, will not be available. Warning and indicator lampsint
he instrument cluster
239On-board computer and displays Z

Engine
Problem Possible causes/consequences and
000B Solutions
000A
The yellow Check
Engin
ewarning lamp
light supw hile the
engin eisrunning. Ther
emay be amalfunction, for example:
R in th eenginem anagement
R in th efuel injection system
R in th eexhaust system
R in th eignition system
R in th efuel system
The emission limit values may be exceeded and th eenginem ay
be runnin ginemergenc ymode.
X Hav ethe vehicle checked as soon as possible at aqualified
specialist workshop.
i In som estates, you must immediately visit aqualified
specialist worksho passoon as th eyellow Chec kEngine warning
lamp lights up .This depends on the locally applicable legal
requirements. If in doubt, check whether such legal regulations
apply in the state in which you are currently driving. 0007
The yellow reserve fuel
warning lamp lights up
while the engine is
running.
The fuel level has dropped into the reserve range.
X
Refuel at the nearest gas station. 0007
The yellow reserve fuel
warning lamp flashes
while the engine is
running.
The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X
Check that the fuel filler cap is correctly closed.
X If the fuel filler cap is not correctly closed: close the fuel filler
cap.
X If the fuel filler cap is closed: visitaqualified specialist
workshop. 0010
The red coolant
warning lamp lights up
while the engine is
running and the coolant
temperature gage is at
the start of the scale.
The temperature sensor for the coolant temperature gage is
defective.
The coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions. Do not continue
driving under any circumstances.
X Secure the vehicle against rolling away (Y page 152).
X Consult aqualified specialist workshop. Warning and indicator lampsint
he instrument cluster
245On-board computer and displays Z