2016 MERCEDES-BENZ B-Class ELECTRIC keyless

or
XLock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical
key, the charge socket flap will not be
unlocked automatically.
Removing the mechanical key
XPush release catch :in the direction of
the arrow and at the same time remove
mechanical key ;from the SmartKey.
For further information about:
Runlocking the driver's door (Ypage 80)
Runlocking the cargo compartment
(
Ypage 82)
Rlocking the vehicle (Ypage 81)
Inserting the mechanical key
XPush mechanical key ;completely into
the SmartKey until it engages and release
catch :is back in its basic position.
SmartKey battery
Important safety notes
GWARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatalinjury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. National
guidelines must be observed during disposal.
In California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.
Mercedes-Benz recommends that you have
the battery replaced at a qualified specialist
workshop.
Checking the battery
XPress the &or% button.
The battery is working properly if battery
check lamp :lights up briefly.
The battery is discharged if battery check
lamp :does not light up briefly.
XChange the battery (Ypage 75).
iIf the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the &or% button:
Rlocks or
Runlocks the vehicle
iYou can get a battery at any qualified spe-
cialist workshop.
Replacing the battery
You require a CR 2025 3 V cell battery.
SmartKey75
Opening and closing
Z

Problems with the SmartKey
ProblemPossible causes/consequences andMSolutions
You cannot lock or
unlock the vehicle
using the SmartKey.The SmartKey battery is discharged or nearly discharged.
XVehicles without KEYLESS-GO or KEYLESS-GO start func-
tion:try again to lock/unlock the vehicle using the remote con-
trol function of the SmartKey. Point the tip of the key at the
driver's door handle from close range and press the %or
& button.
If this does not work:
XCheck the SmartKey battery (Ypage 75) and replace it if nec-
essary (
Ypage 75).
XUnlock (Ypage 80) or lock (Ypage 81) the vehicle using the
mechanical key.
There is interference from a powerful source of radio waves.
XVehicles without KEYLESS-GO or KEYLESS-GO start func-
tion: try again to lock/unlock the vehicle using the remote con-
trol function of the SmartKey. Point the tip of the key at the
driver's door handle from close range and press the %or
& button.
If this does not work:
XUnlock (Ypage 80) or lock (Ypage 81) the vehicle using the
mechanical key.
The SmartKey is faulty.
XUnlock (Ypage 80) or lock (Ypage 81) the vehicle using the
mechanical key.
XHave the SmartKey checked at a qualified specialist workshop.
You can no longer lock
or unlock the vehicle
using KEYLESS-GO.The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 75) and replace it if nec-
essary (
Ypage 75).
If this does not work:
XUnlock (Ypage 80) or lock (Ypage 81) the vehicle using the
mechanical key.
There is interference from a powerful source of radio waves.
XUnlock (Ypage 80) or lock (Ypage 81) the vehicle using the
mechanical key.
SmartKey77
Opening and closing
Z

ProblemPossible causes/consequences andMSolutions
KEYLESS-GO is malfunctioning.
XLock/unlock the vehicle using the remote control function of
the SmartKey.
XHave the vehicle and SmartKey checked at a qualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote
control function:
XUnlock (Ypage 80) or lock (Ypage 81) the vehicle using the
mechanical key.
XHave the vehicle and SmartKey checked at a qualified specialist
workshop.
The drive system can-
not be started using the
SmartKey.the on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the drive system again.
If this does not work:
XCheck the 12 V battery and charge it if necessary (Ypage 289).
or
XCheck the high-voltage battery and charge it if necessary
(
Ypage 141).
or
XJump-start the vehicle (Ypage 292).
or
XConsult a qualified specialist workshop.
The drive system can-
not be started using the
Start/Stop button. The
SmartKey is in the vehi-
cle.The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 75) and replace it if nec-
essary (
Ypage 75).
If this does not work:
XStart your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
78SmartKey
Opening and closing

Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside. This can be useful if you wish
to lock the vehicle before pulling away, for
example.
XTo unlock:press button :.
XTo lock:press button ;.
If all the doors and the tailgate are closed,
the vehicle locks.
This does not lock or unlock the charge
socket flap.
You cannot unlock the vehicle centrally from
the inside if the vehicle has been locked with
the SmartKey or KEYLESS-GO.
You can open a door from inside the vehicle
even if it has been locked. You can open the
rear doors from inside the vehicle unless they
are secured by the child-proof lock
(
Ypage 61).
If the vehicle has previously been locked with
the SmartKey from the outside, opening a
door from the inside will trigger the anti-theft
alarm system. Switch off the alarm
(
Ypage 69).
If a locked door is opened from the inside, the previous unlock status of the vehicle will be
taken into consideration if:
Rthe vehicle was locked using the locking
button for the central locking, or
Rif the vehicle was locked automatically
The vehicle will be fully unlocked if it had pre-
viously been fully unlocked. If only the driver's
door had been previously unlocked, only the door which has been opened from the inside
is unlocked.
Automatic locking feature
XTo deactivate:
press and hold button :
for approximately five seconds until a tone sounds.
XTo activate: press and hold button ;for
approximately five seconds until a tone
sounds.
If you press one of the two buttons and do not
hear a tone, the relevant setting has already
been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are
turning.
You could therefore lock yourself out if:
Rthe vehicle is being pushed.
Rthe vehicle is being towed.
Rthe vehicle is on a roller dynamometer.
You can also switch the automatic locking
function on and off using the on-board com-
puter (
Ypage 198).
Unlocking the driver's door (mechan-
ical key)
If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered (
Ypage 69).
80Doors
Opening and closing

XTake the mechanical key out of the Smart-
Key (
Ypage 74).
XInsert the mechanical key into the lock of
the driver's door as far as it will go.
XTurn the mechanical key counter-clockwise
as far as it will go to position1.
The door is unlocked.
XTurn the mechanical key back and remove
it.
XInsert the mechanical key into the Smart-
Key (
Ypage 75).
Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the
SmartKey or KEYLESS-GO, use the mechani-
cal key.
XOpen the driver's door.
XClose the front-passenger door, the rear
doors and the tailgate.
XPress the locking button on the driver’s
door (
Ypage 80).
XCheck whether the locking knobs on the
front-passenger door and the rear doors
are still visible. Press down the locking
knobs by hand, if necessary.
XClose the driver's door.
XTake the mechanical key out of the Smart-
Key (
Ypage 74).
XInsert the mechanical key into the lock of
the driver's door as far as it will go.
XTurn the mechanical key clockwise as far as
it will go to position 1.
XTurn the mechanical key back and remove
it.
XMake sure that the doors and the tailgate
are locked.
XInsert the mechanical key into the Smart-
Key (
Ypage 75).
iIf you lock the vehicle as described above,
the charge socket flap is not locked. The
anti-theft alarm system is not armed.
Cargo compartment
Important safety notes
GWARNING
If objects, luggage or loads are not secured or
not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
!The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate.
The opening dimensions of the tailgate can be
found in the "Vehicle data" section
(
Ypage 338).
Cargo compartment81
Opening and closing
Z

You should preferably place luggage or loads
in the cargo compartment. Observe the load-ing guidelines (
Ypage 242).
Do not leave the SmartKey in the cargo com-
partment. You could otherwise lock yourself
out.
The tailgate can be:
Ropened and closed manually from outside
Rreleased with the emergency release from
the inside
Opening/closing from outside
Opening
XPress the %button on the key.
XPull handle :.
XRaise the tailgate.
Closing
XPull the tailgate down using handle :.
XAllow the tailgate to drop into the lock.
XIf necessary, lock the vehicle with the &
button on the SmartKey or with KEYLESS-
GO.
Tailgate emergency release
General notes
!The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate.
The opening dimensions of the tailgate can be
found in the "Vehicle data" section
(
Ypage 338).
If the tailgate can no longer be unlocked:
Rusing the SmartKey, or
Rusing the remote operating switch in the
door control panel:
Use the emergency release on the inside of
the tailgate.
You can reach the emergency release via the cargo compartment.
Opening
XRemove cargo compartment cover
(
Ypage 248).
XFold the rear seat backrest forwards
(
Ypage 246).
XTake the mechanical key out of the Smart-
Key (
Ypage 74).
82Cargo compartment
Opening and closing

XTurn the SmartKey to position1or 2in the
ignition lock (
Ypage 131).
XTo open manually: press and hold the cor-
responding switch.
XTo open fully: press the switch beyond the
point of resistance and release it.
Automatic operation is started.
XTo close manually: pull the corresponding
switch and hold it.
XTo close fully: pull the switch beyond the
point of resistance and release it.
Automatic operation is started.
XTo interrupt automatic operation:
press/pull the corresponding switch again.
iIf you press/pull the switch beyond the
point of resistance, automatic operation is
started in the corresponding direction. You
can stop automatic operation by pressing/
pulling the switch again.
iYou can continue to operate the side win-
dows after switching off the drive system or
removing the SmartKey. This function is
available for up to five minutes or until the
driver's or front-passenger door is opened.
iWhen the override feature for the side
windows is activated (
Ypage 62), the side
windows cannot be operated from the rear.
Convenience opening
Vehicles with KEYLESS-GO, the KEYLESS-
GO start function, Exclusive Package or
AMG Exclusive Package: you can ventilate
the vehicle before you start driving.
The SmartKey can also be used to carry out
the following functions simultaneously:
Runlock the vehicle
Ropen the side windows
The convenience opening feature can only be
operated using the SmartKey.
The "convenience opening" feature is also
available when the vehicle is unlocked.
XVehicles with Exclusive Package or
AMG Exclusive Package but without
KEYLESS-GO and the KEYLESS-GO start function: for the following operations,
point the tip of the SmartKey at the door
handle on the driver's door. The SmartKey
must be close to the driver's door handle.
iVehicles with KEYLESS-GO or the KEY-
LESS-GO start function: the SmartKey
must be in close proximity to the vehicle.
XPress and hold the %button until the
side windows reach the desired position.
XTo interrupt convenience opening:
release the %button.
Convenience closing feature
Important safety notes
GWARNING
When using the convenience closing feature,
parts of the body could be trapped in the clos-
ing area when a side window is being closed.
There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. Make sure that no body parts are in
close proximity during the closing procedure.
Vehicles with KEYLESS-GO, the KEYLESS- GO start function, Exclusive Package or
AMG Exclusive Package: when you lock the
vehicle, you can close the side windows at the same time.
iNotes on the automatic reversing feature
for the side windows (
Ypage 83).
Using the SmartKey
XVehicles with Exclusive Package or
AMG Exclusive Package but without
KEYLESS-GO and the KEYLESS-GO start
function: for the following operations,
point the tip of the SmartKey at the door
84Side windows
Opening and closing

handle on the driver's door. The SmartKey
must be close to the driver's door handle.
iVehicles with KEYLESS-GO or the KEY-
LESS-GO start function: the SmartKey
must be in close proximity to the vehicle.
XPress and hold the &button until the
side windows are fully closed.
XTo interrupt convenience closing:
release the &button.
Using KEYLESS-GO
The driver's door and the door at which the
handle is used, must both be closed. The
SmartKey must be outside the vehicle. The
gap between the SmartKey and the corre-
sponding door handle should not be greater
than 3 ft (1 m).
XTouch recessed sensor surface :on the
door handle until the side windows are fully
closed.
iMake sure you only touch recessed sen-
sor surface :.
XMake sure that all the side windows are
closed.
XTo interrupt convenience closing:
release recessed sensor surface :on the
door handle.
Resetting the side windows
If a side window can no longer be closed fully,
you must reset it.
XClose all the doors.
XTurn the SmartKey to position 1or 2in the
ignition lock (
Ypage 131).
XPull the corresponding switch on the door
control panel until the side window is com-
pletely closed (
Ypage 83).
XHold the switch for an additional second.
If the side window opens again slightly:
XImmediately pull the corresponding switch on the door control panel until the side win-
dow is completely closed (
Ypage 83).
XHold the switch for an additional second.
XIf the respective side window remains
closed after the button is released, then it
has been set correctly. If this is not the
case, repeat the steps above again.
Side windows85
Opening and closing
Z