MERCEDES-BENZ B-Class ELECTRIC 2016 W246 Owner's Manual
Manufacturer: MERCEDES-BENZ, Model Year: 2016, Model line: B-Class ELECTRIC, Model: MERCEDES-BENZ B-Class ELECTRIC 2016 W246Pages: 342, PDF Size: 7.53 MB
Page 211 of 342
Display messagesPossible causes/consequences andMSolutions
#
Check Brake Pad
Wear
The brake pads/linings have reached their wear limit.
XVisit a qualified specialist workshop.
G
Inoperative
One or more main features of the mbrace system are malfunc-
tioning.
XVisit a qualified specialist workshop.
Collision Preven‐
tion Assist Plus
Currently Unavail‐
able See Opera‐
tor's Manual
COLLISION PREVENTION ASSIST PLUS is temporarily not opera-
tional.
Possible causes are:
Rthe radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tion s or other sources of electromagnetic radiation.
Rthe system is outside the operating temperature range.
Rthe on-board voltage is too low.
When the causes stated above no longer apply, the display mes-
sage disappears.
COLLISION PREVENTION ASSIST PLUS is operational again.
If th e display message does not disappear:
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).
XStart th e drive system again.
Collision Preven‐
tion Assist Plus
Inoperative
COLLISION PREVENTION ASSIST PLUS is temporarily inoperative
due to a malfunction. Adaptive Brake Assist may also have failed.
XVisit a qualified specialist workshop immediately.
Display messages20 9
On-board computer and displays
Z
Page 212 of 342
Display messagesPossible causes/consequences andMSolutions
Radar Sensors
Dirty See Opera‐
tor's Manual
COLLISION PREVENTION ASSIST PLUS is temporarily restricted or
inoperative.
Possible causes are:
Rthe sensors in the radiator trim and/or in the bumpers are dirty
Rthe function of COLLISION PREVENTION ASSIST PLUS is
impaired due to heavy rain or snow.
A warning tone also sounds.
When the causes stated above no longer apply, the display mes-
sage disappears. COLLISION PREVENTION ASSIST PLUS is opera-
tional again.
If th e display message does not disappear:
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).
XSwitc h offthe drive system.
XClean the sensors in the following location s(Ypage 277):
Rin the radiatortrim
Rin thefront bumper
Rin the rear bumper, particularly in the middle of the rear
bumper
XStart th e drive system again.
The display message disappears.
ã
Acoustic Vehicle
Indication Inoper‐
ative
The sound generator is not working. The vehicle can still be driven;
however, no vehicle sounds can be generated. As a result, your
vehicle may not be heard by other road users until it is very close
to them, or it may not be heard at all.
XDrive with particular care, allowing for the possibility that other
road users may behave unpredictably.
XVisit a qualified specialist workshop.
6
SRS Malfunction
Service Required
The restraint system is faulty. The 6warning lamp also lights
up in the instrument cluster.
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.
XVisit a qualified specialist workshop immediately.
Fo r further information about the restraint system, see
(
Ypage 40).
210Display messages
On-board computer and displays
Page 213 of 342
Display messagesPossible causes/consequences andMSolutions
6
FrontLeftMalfunc‐
tion Service
RequiredorFront
Right Malfunction
Service Required
The restraint system has malfunctioned at the front on the left or
right. The 6warning lamp also lights up in the instrument clus-
ter.
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.
XVisit a qualified specialist workshop immediately.
6
Rear Left Malfunc‐
tion Service
Requiredor Rear
Right Malfunction
Service Required
The rear left-hand or right-hand restraint system has malfunc-
tioned. The 6warning lamp also lights up in the instrument
cluster.
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.
XVisit a qualified specialist workshop immediately.
6
Rear Center Mal‐
function Service
Required
The rear center restraint system has malfunctioned. The 6
warning lamp also lights up in the instrument cluster.
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.
XVisit a qualified specialist workshop immediately.
6
Left Side Curtain
AirbagMalfunction
Service Required
or Right Side Cur‐
tain Airbag Mal‐
function Service
Required
There is a malfunction in the left-hand or right-hand window cur-
tain air bag. The 6warning lamp also lights up in the instrument
cluster.
GWARNING
The left or right window curtain air bag may either be triggered
unintentionally or, in the event of an accident, may not be trig-
gered.
There is an increased risk of injury.
XVisit a qualified specialist workshop immediately.
Display messages21 1
On-board computer and displays
Z
Page 214 of 342
Display messagesPossible causes/consequences andMSolutions
Front Passenger
Airbag Disabled
SeeOperator'sMan‐
ual
The front-passenger air bag is deactivated during the journey, even
though:
Ran adult
or
Ra person of the corresponding stature is on the front-passenger
seat
If additional forces are applied to the seat, the system may inter-
pret the occupant's weight as lower than it actually is.
GWARNING
The front-passenger air bag does not deploy during an accident.
There is an increased risk of injury.
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).
XSwitc hth e ignition off.
XHave the occupant get out of the vehicle.
XKeep the seat unoccupied, close the front-passenger door and
switch on the ignition.
XObserve thePASSENGER AI RBA G indicator lamps in the center
console and th e multifunction display and check the following:
Seat unoccupied and ignition switched on:
Ra self-diagnosis is carried out. The PASSENGER AIR BAG OFF
and PASSENGER AI RBA G ON indicator lamps must light up
simultaneously for approximately six seconds
Rth ePASSENGER AI RBA G OFF indicator lamp must then light
up and remain lit after the self-diagnosis. If the indicator lamp
is on, OCS (Occupant Classification System) has disabled the
front-passenger front air bag (
Ypage 50)
Rth eFront Passenger Air Bag Enabled See Opera‐
tor's Manualor Front Passenger Air Bag Disabled
See Operator's Manualdisplay messages must not be
shown in the multifunction display
XWait fo raperiod of at least 60 seconds until the necessary sys-
te m checks have been completed.
XMake sure that the display messages do not appear in the mul-
tifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIRBA G OFF or ON
indicator lamp remains lit or goes out depends on how OCS clas-
sifies the occupant.
212Display messages
On-board computer and displays
Page 215 of 342
Display messagesPossible causes/consequences andMSolutions
If the conditions are not fulfilled, the system is not operating cor-
rectly.
XVisit a qualified specialist workshop immediately.
Fo r further information about the Occupant Classification System,
see (
Ypage 50).
Front Passenger
AirbagEnabledSee
Operator's Manual
The front-passenger air bag is enabled during the journey, even
though:
Ra child, a small adult or an object weighing less than the sys-
tem' s weight threshold is located on the front-passenger seat
or
Rth e front-passenger seat is unoccupied
The system may detect objects or forces applying additional
weight on the seat.
GWARNING
The air bag may deploy unintentionally.
There is an increased risk of injury.
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).
XSwitc hth e ignition off.
XOpen the front-passenger door.
XRemove th e child and the child restraint system from the front-
passenger seat.
XMake sure that there are no objects on the seat adding to the
weight.
The system may otherwise detect the additional weight and
interpret the seat occupant's weight as greater than it actually
is.
XKeep the seat unoccupied, close the front-passenger door and
switch on the ignition.
XObserve thePASSENGER AI RBA G indicator lamps in the center
console and th e multifunction display and check the following:
Se at unoccupied and ignition switched on:
Ra self-diagnosis is carried out. The PASSENGER AIR BAG OFF
and PASSENGER AI RBA G ON indicator lamps must light up
simultaneously for approximately six seconds
Rth ePASSENGER AI RBA G OFF indicator lamp must then light
up and remain lit after the self-diagnosis. If the indicator lamp
Display messages21 3
On-board computer and displays
Z
Page 216 of 342
Display messagesPossible causes/consequences andMSolutions
is on, OCS has disabled the front-passenger front air bag
(
Ypage 50)
RtheFront Passenger Air Bag Enabled See Opera‐
tor's Manualor Front Passenger Air Bag Disabled
See Operator's Manualdisplay messages must not be
shown in the multifunction display
XWait fo raperiod of at least 60 seconds until the necessary sys-
te m checks have been completed.
XMake sure that the display messages do not appear in the mul-
tifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIRBA G OFF or ON
indicator lamp remains lit or goes out depends on how OCS clas-
sifies the occupant.
If th e conditions are not fulfilled, the system is not operating cor-
rectly.
XVisit a qualified specialist workshop immediately.
Fo r further information about the Occupant Classification System,
see (
Ypage 50).
Lights
i
Vehicles with LED bulbs in the light clusters:
The display message for the corresponding lamp only appears when all of the LEDs in the
lamp have failed.
Display messagesPossible causes/consequences and MSolutions
b
Check Left Corner‐
ing LightorCheck
Right Cornering
Light
The left or right-hand cornering light is defective.
XCheck whether you are permitted to replace the bulb yourself
(
Ypage 104).
or
XVisit a qualified specialist workshop.
b
Check Left Low
Beamor Check
Right Low Beam
The left or right-hand low-beam headlamp is defective.
XCheck whether you are permitted to replace the bulb yourself
(
Ypage 104).
or
XVisit a qualified specialist workshop.
214Display messages
On-board computer and displays
Page 217 of 342
Display messagesPossible causes/consequences andMSolutions
b
Check Rear Left
Turn Signalor
Check Rear Right
Turn Signal
The rear left-hand or rear right-hand turn signal is defective.
XCheck whether you are permitted to replace the bulb yourself
(
Ypage 104).
or
XVisit a qualified specialist workshop.
b
Check Front Left
Turn Signalor
Check Front Right
Turn Signal
The front left-hand or front right-hand turn signal is defective.
XCheck whether you are permitted to replace the bulb yourself
(
Ypage 104).
or
XVisit a qualified specialist workshop.
b
Check Left Mirror
Turn Signalor
Check
RightMirror
Turn Signal
The turn signal in the left-hand or right-hand exterior mirror is
defective.
XVisit a qualified specialist workshop.
b
CheckCenterBrake
Lamp
The high-mounted brake lamp is faulty.
XVisit a qualified specialist workshop.
b
Check Left Brake
Lampor Check
Right Brake Lamp
The left or right-hand brake lamp is defective.
XVisit a qualified specialist workshop.
b
Check Left High
BeamorCheck
Right High Beam
The left or right-hand high beam is defective.
XCheck whether you are permitted to replace the bulb yourself
(
Ypage 104).
or
XVisit a qualified specialist workshop.
b
License Plate Lamp
The left or right-hand license plate lamp is faulty.
XCheck whether you are permitted to replace the bulb yourself
(
Ypage 104).
or
XVisit a qualified specialist workshop.
Display messages21 5
On-board computer and displays
Z
Page 218 of 342
Display messagesPossible causes/consequences andMSolutions
b
Rear fog lamp
The rear fog lamp is faulty.
XCheck whether you are permitted to replace the bulb yourself
(
Ypage 104).
or
XVisit a qualified specialist workshop.
b
Check Front Left
Parking Lampor
Check Front Right
Parking Lamp
The front left or front right parking or standing lamp is defective.
XCheck whether you are permitted to replace the bulb yourself
(
Ypage 104).
or
XVisit a qualified specialist workshop.
b
Backup Light
The backup lamp is defective.
XCheck whether you are permitted to replace the bulb yourself
(
Ypage 104).
or
XVisit a qualified specialist workshop.
b
Check Left Tail
Lampor Check
Right Tail Lamp
The left or right-hand tail lamp is defective.
XVisit a qualified specialist workshop.
b
Check Front Left
Sidemarker Lampor
Check Front Right
Sidemarker Lamp
The front left-hand or front right-hand side marker lamp is faulty.
XVisit a qualified specialist workshop.
b
Check Rear Left
Sidemarker Lampor
Check Rear Right
Sidemarker Lamp
The rear left-hand or rear right-hand side marker lamp is faulty.
XCheck whether you are permitted to replace the bulb yourself
(
Ypage 104).
or
XVisit a qualified specialist workshop.
b
CheckLeftDaytime
Running Lightor
Check Right Day‐
time Running Light
The left or right-hand daytime running lamp is faulty.
XVisit a qualified specialist workshop.
216Display messages
On-board computer and displays
Page 219 of 342
Display messagesPossible causes/consequences andMSolutions
b
Active Headlamps
Inoperative
The active light function is faulty.
XVisit a qualified specialist workshop.
b
Malfunction See
Operator's Manual
The exterior lighting is defective.
XVisit a qualified specialist workshop.
b
AutoLampFunction
Inoperative
The light sensor is defective.
XVisit a qualified specialist workshop.
b
Switch Off Lights
The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
XTurn the light switch to the Ãposition.
b
SwitchOnHeadlamps
You are driving with low-beam headlamps switched off.
XTurnthe light switch to the Lorà position.
Display messages217
On-board computer and displays
Z
Page 220 of 342
Drive system
Display messagesPossible causes/consequences andMSolutions
+
Check Coolant See
Operator's Manual
The coolant level is too low.
!Avoid making long journeys withtoo little coolant in the cooling
system. The drive system will otherwise be damaged.
XIf th e coolant needs topping up more often than usual, have the
cooling system checked at a qualified specialist workshop.
#
SeeOperator'sMan‐
ual
The 12 V battery is no longer being charged.
XStop th e vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the drive system.
XSecur eth e vehicle against rolling away (Ypage 153).
XDo no t drive on.
XDo notto w the vehicle.
XConsult a qualified specialist workshop.
#
Stop Vehicle See
Operator's Manual
The 12 V battery is no longer being charged and the battery charge
level is too low.
A warning tone also sounds.
XStop th e vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the drive system.
XSecur eth e vehicle against rolling away (Ypage 153).
XDo no t drive on.
XDo notto w the vehicle.
XConsult a qualified specialist workshop.
218Display messages
On-board computer and displays