2016 MERCEDES-BENZ B-Class ELECTRIC warning

Display messagesPossible causes/consequences andMSolutions
Service Required
DoNotShiftGears
Visit Dealer
You cannotchangeth e transmission position due to a malfunction.
A warning tone also sounds.
If transmission position Dis selected:
XDrive to a qualified specialist workshop without shifting the
transmission from position D.
If transmission position R,N or Pis selected:
XSecur eth e vehicle against rolling away (Ypage 153).
XNotify a qualified specialist workshop or breakdown service.
XDo no tto w the vehicle.
Only Shift to 'P'
when Vehicle is
Stationary
The vehicle is moving.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XShift th e transmission to position P.
AThe tailgate is open.
XClosethe tailgate.
?The hood is open.
A warning tone also sounds.
GWARNING
The open hood may block your view when the vehicle is in motion.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XSecur eth e vehicle against rolling away (Ypage 153).
XClose the hood.
CAt least one door is open.Awarning tone also sounds.
XClose all the doors.
226Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Ð
PowerSteeringMal‐
function See Oper‐
ator's Manual
The power steering is malfunctioning.
A warning tone also sounds.
GWARNING
You will need to use moreforce to steer.
There is a risk of an accident.
XCheck whether you are able to apply the extra force required.
If you are able to steer safely:
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
If you are unable to steer safely:
XDo no t drive on.
XConsult a qualified specialist workshop.
Phone No ServiceYour vehicle is outside the network provider'stransmitter/
receiver range.
XWait until the mobile phone operational readiness symbol
appears in the multifunction display.
¥
Check Washer Fluid
The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
XAd d washer fluid(Ypage 272).
Wiper Malfunction‐
ing
The windshield wipers are malfunctioning.
XVisit a qualified specialist workshop.
Hazard Warning
Flashers Malfunc‐
tioning
The hazard warning lamps are faulty.
XVisit a qualified specialist workshop.
î
Charger Cable Con‐
nected
The charging cable is still connected to the vehicle socket.
XRemove th echargin g cable from vehicle socket.
Display messages227
On-board computer and displays
Z

SmartKey
Display messagesPossible causes/consequences andMSolutions
Â
Key Does Not
Belong to Vehicle
You have put the wrong SmartKey in the ignition lock.
XUse the correct SmartKey.
Â
TakeYourKeyfrom
Ignition
The SmartKey is in the ignition lock.
XRemove the SmartKey.
Â
Obtain a New Key
The SmartKey needs to be replaced.
XVisit a qualified specialist workshop.
Â
ReplaceKeyBattery
The SmartKey battery is discharged.
XChange the battery (Ypage 75).
Â
Don't Forget Your
Key
The display message is shown for a maximum of 60 seconds and
is only a reminder.
You open the driver's door with the drive system switched off. The
SmartKey is not in the ignition lock.
XTake the SmartKey with you when you leave the vehicle.
Â
Key Not Detected
(red display message)
The SmartKey is not in the vehicle.
A warning tone also sounds.
If the drive system is switched off, you can no longer lock the
vehicle centrally or start the drive system.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 153).
XLocate the SmartKey.
There is interference from a strong source of radio waves, and as
a result the key is not detected while the drive system is running.
A warning tone also sounds.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 153).
XInsert the SmartKey into the ignition lock and bring into key
mode.
228Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Â
Key Not Detected
(white display mes-
sage)
The SmartKey is currently undetected.
XChange the location of theSmartKey in the vehicle.
If th e SmartKey still cannot be detected:
XOperate the vehicle with theSmartKey in th e ignition lock.
Â
Remove'Start'But‐
ton and Insert Key
The SmartKey is continually undetected.
KEYLESS-GO is temporarily malfunctioning or is defective. A warn-
ing tone also sounds.
XInserttheSmartKey into th e ignition lock and turn it to the
desired position.
XVisit a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster
General notes
Some systems carry out a self-diagnosis when the ignition is switched on. Therefore, some
indicator and warning lamps may light up or flash temporarily. This behavior is non-critical.
These warning and indicator lamps only indicate a malfunction if they light up or flash after the
drive system is started or during a journey.
Safety
Seat belts
ProblemPossible causes/consequences and MSolutions
ü
After starting thedrive
system, the red seat
belt warning lamp lights
up for6 seconds.The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
XFasten your seat belt (Ypage 44).
ü
After starting thedrive
system, the red seat
belt warning lamp lights
up. In addition ,awarn-
ing tone sounds for up
to 6 seconds.The driver's seat belt is not fastened.
XFasten your seat belt (Ypage 44).
The warning tone ceases.
Warning and indicator lamps in the instrument cluster229
On-board computer and displays
Z

ProblemPossible causes/consequences andMSolutions
ü
The red seat belt warn-
ing lamp lights up after
the drive system 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 your seat belt (Ypage 44).
The warning lamp goes out.
There are objects on the front-passenger seat.
XRemove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out.
ü
The red seat belt warn-
ing lamp flashes and an
intermittent audible
warning sounds.The driver or front passenger has not fastened their seat belt. The
vehicle is being driven faster than 15 mph (25 km/h) or has briefly been driven faster than 15 mph (25 km/h).
XFasten your seat belt (Ypage 44).
The warning lamp goes out and the intermittent warning tone
ceases.
There are objects on the front-passenger seat. The vehicle is being
driven faster than 15 mph (25 km/h) or has briefly been driven
faster than 15 mph (25 km/h).
XRemove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out and the intermittent warning tone
ceases.
230Warning and indicator lamps in the instrument cluster
On-board computer and displays

Safety systems
ProblemPossible causes/consequences andMSolutions
é(USA only)
J (Canada only)
The yellow RBS (USA
only)/brakes (Canada
only) warning lamp is lit
while the drive system
is running.The brake system is malfunctioning.
GWARNING
The braking characteristics may be affected.
There is a risk of an accident.
XDrive on taking extra care.
XVisit a qualified specialist workshop immediately.
é (USA only)
J (Canada only)
The yellow RBS (USA
only)/brakes (Canada
only) warning lamp is lit
while the drive system
is running.RBS (Recuperative Brake System) is unavailable due to a malfunc-
tion.
GWARNING
The braking performance of the electric motor using recuperative
braking may be either reduced or not effective. If you do not make
an additional effort to apply the brake yourself, the braking effect
may not be sufficient. If necessary, counteract the reduced regen-
erative braking effect by applying the brake yourself.
The brake system continues to function normally, but without the
function listed above.
The braking effect may be impaired.
XDrive on taking extra care.
XVisit a qualified specialist workshop immediately.
$ (USA only)
J (Canada only)
The red brake system
warning lamp is lit while
the drive system is run-
ning. A warning tone
also sounds.GWARNING
The brake boosting effect is malfunctioning and the braking char-
acteristics may be affected.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
XSecure the vehicle against rolling away (Ypage 153).
XConsult a qualified specialist workshop.
XObserve the additional display messages in the multifunction
display.
Warning and indicator lamps in the instrument cluster231
On-board computer and displays
Z

ProblemPossible causes/consequences andMSolutions
$(USA only)
J (Canada only)
The red brake system
warning lamp is lit while
the drive system is run-
ning. 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.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
XSecure the vehicle against rolling away (Ypage 153).
XDo not add brake fluid. Adding more will not remedy the mal-
function.
XConsult a qualified specialist workshop.
XObserve the additional display messages in the multifunction
display.
!֌
é (USA only)
J (Canada only)
The yellow ABS, ESP
®,
ESP®OFF and
RBS (USA only)/brakes
(Canada only) warning
lamps are lit while the
drive system is running.
ABS (Anti-lock Braking System) is deactivated due to a malfunc-
tion. Therefore, BAS (Brake Assist), COLLISION PREVENTION
ASSIST PLUS, ESP
®(Electronic Stability Program), RBS, the HOLD
function and hill start assist are also deactivated, for example.
ATTENTION ASSIST is deactivated.
GWARNING
The braking performance of the electric motor using recuperative
braking may be either reduced or not effective. If you do not make
an additional effort to apply the brake yourself, the braking effect
may not be sufficient. If necessary, counteract the reduced regen-
erative braking effect by applying the brake yourself.
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 affec-
ted. 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.
XObserve the additional display messages in the multifunction
display.
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
If the ABS control unit is malfunctioning, other systems may also
not be available, e.g. the navigation system.
232Warning and indicator lamps in the instrument cluster
On-board computer and displays

ProblemPossible causes/consequences andMSolutions
!֌
é(USA only)
J (Canada only)
The yellow ABS, ESP
®,
ESP®OFF and
RBS (USA only)/brakes
(Canada only) warning
lamps are lit while the
drive system is running.
ABS is temporarily unavailable. Therefore, BAS, COLLISION PRE-
VENTION ASSIST PLUS, ESP®, EBD (electronic brake force distri-
bution), the HOLD function and hill start assist are also deactiva-
ted, for example.
Possible causes are:
RSelf-diagnosis is not yet complete.
RThe on-board voltage may be insufficient.
ATTENTION ASSIST is deactivated.
GWARNING
The braking performance of the electric motor using recuperative
braking may be either reduced or not effective. If you do not make
an additional effort to apply the brake yourself, the braking effect
may not be sufficient. If necessary, counteract the reduced regen-
erative braking effect by applying the brake yourself.
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 affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is a risk of an accident.
XCarefully drive a suitable distance, making slight steering move-
ments at a speed above 12 mph (20 km/h).
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on:
XObserve the additional display messages in the multifunction
display.
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
Warning and indicator lamps in the instrument cluster233
On-board computer and displays
Z