2016 MERCEDES-BENZ B-Class ELECTRIC warning light

XStart the drive system.
XPress the=or; button on the steer-
ing wheel to select the DriveAssist
menu.
XPress9or: to select ESP.
XPressato confirm.
The current selection appears.
XTo activate/deactivate: press thea
button again.
ESP
®is deactivated if the åwarning
lamp in the instrument cluster lights up
continuously when the drive system is run-
ning.
If the ÷ andå warning lamps light up
continuously, ESP
®is not available due to a
malfunction.
Observe the information on warning lamps
(
Ypage 235).
Observe the information on display messages
(
Ypage 201).
Activating/deactivating COLLISION
PREVENTION ASSIST PLUS
XPress the =or; button on the steer-
ing wheel to select the DriveAssist
menu.
XPress the9or: button to select
Collision Prevent. Assist
.
XPress ato confirm.
The current selection appears.
XTo activate/deactivate: press thea
button again.
When COLLISION PREVENTION ASSIST
PLUS is deactivated, the æsymbol
appears in the multifunction display in the
assistance graphic display.
For further information about COLLISION
PREVENTION ASSIST PLUS, see (
Ypage 63).
Activating/deactivating ATTENTION
ASSIST
XPress the =or; button on the steer-
ing wheel to select the DriveAssist
menu.
XPress the9or: button to select
Attention Assist
.
XPress ato confirm.
The current selection appears.
XPress ato confirm.
XPress the :or9 button to set Off,
Standard
or Sensitive.
XPress the abutton to save the setting.
When ATTENTION ASSIST is deactivated,
the é symbol appears in the multifunc-
tion display in the assistance graphics dis-
play.
For further information about ATTENTION
ASSIST, see (
Ypage 176).
Activating/deactivating Blind Spot
Assist
XPress the =or; button on the steer-
ing wheel to select the DriveAssist
menu.
XPress the9or: button to select
Blind Spot Assist
.
XPress ato confirm.
The current selection appears.
XTo activate/deactivate: press thea
button again.
For further information about Blind Spot
Assist, see (
Ypage 177).
Service menu
Depending on the equipment installed in the
vehicle, you have the following options in the
Serv.
menu:
RCalling up display messages in message
memory (
Ypage 200)
RChecking the tire pressure electronically
(
Ypage 309)
RCalling up the service due date
(
Ypage 273)
194Menus and submenus
On-board computer and displays

Safety systems
Display messagesPossible causes/consequences andMSolutions
!÷
Currently Unavail‐
able See Opera‐
tor's Manual
ABS (Anti-lock Braking System), BAS (Brake Assist), ESP®(Elec-
tronic Stability Program), the HOLD function, RBS (Recuperative
Brake System) and hill start assist are temporarily unavailable.
COLLISION PREVENTION ASSIST PLUS may also have failed.
The !, ÷,åandé (USA only) or J(Canada only)
warning lamps in the instrument cluster may also light up.
ATTENTION ASSIST is deactivated.
Possible causes are:
RSelf-diagnosis is not yet complete.
RThe on-board voltage may be insufficient.
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.
XCarefully drive a short distance on a suitable stretch of road,
making slight steering movements at a speed above 12 mph
(20 km/ h).
If the display message disappears, the functions mentioned
above are available again.
If the multifunction display still shows the display message:
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
!÷
Inoperative See
Operator's Manual
ABS, BAS, ESP®, the HOLD function, RBS and hill start assist are
not available due to a malfunction.
COLLISION PREVENTION ASSIST PLUS may also have failed.
The !, ÷,å, é(USA only) or J(Canada only) and
$ (USA only) or J(Canada only) warning lamps in the
instrument cluster may also light up.
Display messages201
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
÷
Currently Unavail‐
able See Opera‐
tor's Manual
ESP®,BAS, th eHOLD function, RBS and hill start assist are tem-
porarily unavailable.
COLLISION PREVENTION ASSIST PLUS may also have failed.
The , ÷, åandé (USA only) or J(Canada only)
warning lamps in the instrument cluster may also light up.
ATTENTION ASSIST is deactivated.
The self-diagnosis function might not be complete, for example.
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 no t 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 braking distance in an emergency braking situation can thus
increase.
If ES P
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XCarefully drivea suitable distance, making slight steering move-
ments at a speed above 12 mph (20 km/h).
If th e display message disappears, the functions mentioned
above are available again.
If th emu ltifunction display still shows the display message:
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
Display messages203
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
÷
Inoperative See
Operator's Manual
ESP®,BAS, th eHOLD function, RBS and hill start assist are not
available due to a malfunction.
COLLISION PREVENTION ASSIST PLUS may also have failed.
The , ÷, åandé (USA only) or J(Canada only)
warning lamps in the instrument cluster may also light up.
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 no t 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 braking distance in an emergency braking situation can thus
increase.
If ES P
®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 immediately.
204Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
T!
÷
Inoperative See
Operator's Manual
EBD (electronic brake force distribution), ABS, BAS, ESP®,th e
HOLD function , RBS and hill start assist are not available due to a
malfunction.
COLLISION PREVENTION ASSIST PLUS may also have failed.
A warning tone sounds.
The ÷, å,!andé (USA only) or J(Canada only)
warning lamps in the instrument cluster may also light up.
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 no t 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 ES P
®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 immediately.
F(USA
only)
!(Canada
only)
Turn On the Igni‐
tion to Release
the Parking Brake
The red F(USA only) or !(Canada only) indicator lamp
lights up.
You attempted to release the electric parking brake while the igni-
tion was switched off.
XSmartKey: turnthe SmartKey to position 1in the ignition lock.
XKEYLESS-GO: switch on the ignition.
F(USA
only)
!(Canada
only)
Please Release
Parking Brake
The red F(USA only) or !(Canada only) indicator lamp
flashes and a warning tone sounds. A condition for automatic
release of the electric parking brake is not fulfilled (
Ypage 155).
You are driving with the electric parking brake applied.
XRelease the electric parking brake manually.
The red F(USA only) or !(Canada only) indicator lamp
flashes and a warning tone sounds.
You are using the electric parking brake foremergenc y braking
(
Ypage 155).
Display messages20 5
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
F(USA
only)
!(Canada
only)
Parking Brake See
Operator's Manual
The yellow !warning lamp lights up.
The electric parking brake is malfunctioning.
To apply:
XSwitc hth e ignition off.
XPress the electric parking brake handle for at least ten seconds.
XShift th e transmission to position P.
XConsult a qualified specialist workshop.
The yellow!warning lamp and the red F(USA only)
or ! (Canada only) indicator lamp light up.
The electric parking brake is malfunctioning.
To release:
XSwitc h offthe ignition and turn it back on.
XRelease the electric parking brake manually.
or
XRelease the electric parking brake automatically (Ypage 155).
If th e electric parking brake still cannot be released:
XDo no t drive on.
XConsult a qualified specialist workshop.
The red F(USA only) or !(Canada only) indicator lamp
flashes and the yellow !warning lamp lights up.
The electric parking brake is malfunctioning.
To release:
XSwitc h offthe ignition and turn it back on.
XRelease the electric parking brake manually.
To apply:
XSwitc h offthe ignition and turn it back on.
XApply the electric parking brake manually.
If th e red F (USA only) or !(Canada only) indicator lamp
continues to flash:
XDo no t drive on.
XSecureth e vehicle against rolling away (Ypage 324).
XShift th e transmission to position P.
XTurnthefron t wheels towards the curb.
XConsult a qualified specialist workshop.
206Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up. The red F(USA only)
or ! (Canada only) indicator lamp flashes for about ten sec-
onds after the electric parking brake has been applied or released.
It then goes out or remains lit.
The electric parking brake is malfunctioning.
XSwitc h offthe ignition and turn it back on.
XApply the electric parking brake.
If it is not possible to engage the electric parking brake:
XShift th e transmission to position P.
XVisit a qualified specialist workshop.
If it is not possible to release the electric parking brake manually:
XRelease the electric parking brake automatically (Ypage 155).
If th e electric parking brake still cannot be released:
XConsult a qualified specialist workshop.
The yellow !warning lamp lights up. If you manually apply or
release the electric parking brake, the red F(USA only) or !
(Canada only) indicator lamp flashes.
The electric parking brake is malfunctioning. It is not possible to
apply the electric parking brake manually.
XShift th e selector lever to P, as the electric parking brake is not
applied automatically.
XVisit a qualified specialist workshop.
Display messages20 7
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
F(USA
only)
!(Canada
only)
Parking
BrakeInop‐
erative
The yellow !warning lamp lights up. The red F(USA only)
or ! (Canada only) indicator lamp flashes for about ten sec-
onds after the electric parking brake has been applied or released.
It then goes out or remains lit.
The electric parking brake is malfunctioning, e.g. because of over-
voltage or undervoltage.
XRectify the cause of the overvoltage or undervoltage, e.g. by
chargin gth ebattery or restarting the drive system.
XEngage or release the electric parking brake.
If it remains impossible to apply or release the electric parking
brake:
XSwitc h offthe ignition and turn it back on.
XEngage or release the electric parking brake.
If th e electric parking brake still cannot be released:
XConsult a qualified specialist workshop.
If th e electric parking brake still cannot be applied:
XVisit a qualified specialist workshop.
The yellow !warning lamp lights up and the red F(USA
only) or !(Canada only) indicator lamp flashes.
It is no t possible to apply the electric parking brake manually.
XShift th e transmission to position P.
XVisit a qualified specialist workshop.
$(USA
only)
J(Canada
only)
Check Brake Fluid
Level
There is not enough brake fluid in the brake fluid reservoir.
A warning tone sounds. The $(USA only) or J(Canada
only) warning lamps in the instrument cluster may also light up.
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.
XSecur eth e vehicle against rolling away (Ypage 153).
XConsult a qualified specialist workshop.
XDo no t add brake fluid. This does not correctth e malfunction.
208Display messages
On-board computer and displays