2019 MERCEDES-BENZ METRIS battery

Removing the mechanical key
XSlide release catch:in the direction of the
arrow and, at the same time, remove mechan-
ical key ;from the SmartKey completely.
Inserting the mechanical key
XPush mechanical key ;completely into the
SmartKey until it engages and release
catch :is back in its basic position.
Unlocking/locking the vehicle using
the mechanical key
The door lock for unlocking in an emergency is
on the driver’s door.
XTo unlock the driver's door: insert the
mechanical key fully into the driver's door
lock and turn it counter-clockwise.
The driver’s door is unlocked.
XTo lock the vehicle: lock all doors except the
driver's door from the inside. To do this, push
down the door-locking knobs.
XInsert the mechanical key fully into the driv-
er's door lock and turn it clockwise.
The driver's door is locked.
Battery of the key
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.
HEnvironmental note
Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately and recycled to protect the
environment.
Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to a qualified spe-
cialist workshop or a special
collection point for used bat-
teries.
Mercedes-Benz recommends that you have the
battery changed at a qualified specialist work-
shop.
Checking the battery
XPress the &or% button.
If battery check lamp :lights up briefly, the
battery is sufficiently charged.
If battery check lamp :does not light up
briefly, the battery is empty.
XChange the battery (Ypage 72).
If the SmartKey battery is checked within the
signal range of the vehicle, pressing the &or
% button results in:
Rlock or
Runlock the vehicle
Key71
Opening and closing
Z

iThe battery may be obtained at any qualified
specialist workshop.
Changing the battery
You need a type CR 2025 3 V cell battery.
XPull out the mechanical key from the Smart-
Key (Ypage 70).
XPush mechanical key ;into the opening in
the SmartKey in the direction of the arrow
until battery compartment cover :opens.
When doing so, do not hold battery compart-
ment cover :shut.
XRemove battery compartment cover :.
XTap the SmartKey against the palm of your
hand so that battery=falls out of the battery
compartment.
XInsert the new battery into the battery tray
with the positive pole facing upwards. Use a
lint-free cloth to do so.
XInstall battery compartment cover :to the
key casing with the front lugs first and push
closed.
XSlide mechanical key ;back into the Smart-
Key (Ypage 71).
XCheck the function of all SmartKey buttons on
the vehicle.
Problems with the key
ProblemPossible causes/consequences and MSolutions
It is no longer possible to
lock the vehicle using
the SmartKey.
The turn signals do not
flash when the vehicle is
locked.The doors are not closed properly.
XClose the doors properly and lock the vehicle again.
The central locking system has malfunctioned.
XLock the vehicle using the mechanical key (Ypage 71) or press
down the locking knob and then close the doors.
XHave the central locking system checked as soon as possible at a
qualified specialist workshop.
It is no longer possible to
lock or unlock the vehi-
cle using the SmartKey.The SmartKey battery is weak or discharged.
XPoint the tip of the SmartKey at the driver's door handle from very
close range and press the %or& button.
If this does not work:
XReplace the SmartKey battery (Ypage 72).
or
XLock or unlock the vehicle using the mechanical key (Ypage 71).
72Key
Opening and closing

ProblemPossible causes/consequences andMSolutions
The SmartKey is faulty.
XLock the vehicle with the mechanical key (Ypage 71).
XHave the SmartKey checked at a qualified specialist workshop.
The engine cannot be
started using the Smart-
Key.The on-board voltage is too low.
XSwitch off all non-essential consumers, such as interior lighting, and
try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary (Ypage 264).
or
XJump-start the vehicle (Ypage 274).
or
XConsult a qualified specialist workshop.
You have lost a Smart-
Key.XHave the SmartKey deactivated at a qualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the mechanical locks replaced.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the mechanical locks replaced.
Central locking
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
GWARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
You can open a locked door from the inside at
any time. For the sliding doors, the child-proof
locks must be deactivated.
Centrally locking and unlocking the
vehicle from the inside
You can centrally lock and unlock the whole
vehicle from the inside using the central locking
buttons on the driver's door.
Central locking73
Opening and closing
Z

Problems with the sliding door
ProblemPossible causes/consequences andMSolutions
The electric sliding door
is locked in place.Unfavorable operating conditions, e.g. frost, ice or heavy soiling, may
obstruct the sliding door.
XPress and hold the sliding door button until the sliding door has
opened or closed.
The sliding door moves with increased force. Observe that, in such
circumstances, the obstacle detection is less sensitive. To stop the
movement, release the sliding door button.
XRemove the cause of the blockage at the earliest opportunity.
Tailgate
Important safety notes
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the tailgate
is open when the engine is running, particu-
larly if the vehicle is moving, exhaust fumes
could enter the passenger compartment.
There is a risk of poisoning.
Turn off the engine before opening the tail-
gate. Never drive with the tailgate open.
!The tailgate swings upwards and to the rear
when opened. Therefore, make sure that
there is sufficient clearance above and behind
the tailgate.
You will find details of the tailgate opening
dimensions under "Technical data"
(
Ypage 313).
Opening and closing
XTo open: press button :on the handle.
XRaise the tailgate.
XTo close: pull the tailgate firmly downwards
by strap ;and close it from outside.
Problems with the tailgate
The tailgate cannot be opened.
The voltage supply has been interrupted or the
battery charge is insufficient.
Consult a qualified specialist workshop which
has the necessary specialist knowledge and
tools to carry out the work required.
In an emergency, you can open the tailgate
using the release catch for service purposes.
XPry off the cover on the lower part of the tail-
gate with a suitable tool, e.g. the screwdriver from the vehicle tool kit.
XInsert the screwdriver into the opening and
move the release lever until the tailgate
unlocks and opens.
XSwing the tailgate upwards.
Tailgate79
Opening and closing
Z

XTo adjust the height:turn the key in the igni-
tion lock to position 2.
or
XOpen the door.
XSlide switch :up or down in the direction of
the arrow.
iIf the ignition is not switched on, you can
adjust the head restraint height within
30 seconds of unlocking the vehicle.
XTo move forward: pull the head restraint
forward until it engages in the required posi-
tion.
XTo move back: press and hold down release
knob ;and slide the head restraint back to
the desired position.
XLet go of release button ;.
XEnsure that the head restraint has engaged
properly.
Armrests
XTo adjust the armrest angle: fold the arm-
rest up by more than 45° to position 2.
The armrest is released.
XFold armrest 3forward to the stop.
XSlowly fold the armrest up to the desired posi-
tion.
XTo fold the armrest up: if necessary, fold the
armrest up by more than 90° to position 1.
Seat heating
GWARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited
ability to react to high temperatures may be
affected or they may even suffer burn-like
injuries. There is a risk of injury.
Therefore, do not switch the seat heating on
repeatedly.
!When you leave your seat, do not place any-
thing on the seat and switch off the seat heat-
ing. Do not switch the seat heating on when
the seat is not occupied, e.g. when driving
without a front passenger. The seat heating
may otherwise overheat, causing damage to
the seat.
The three red indicator lamps in the Íbutton
show the activated heating level 1to 3.
The seat heating automatically switches down
from level 3to level 2after approximately seven
minutes.
The system automatically switches down from
level 2to level 1after approximately ten
minutes.
At level 1the seat heating switches off auto-
matically after approximately 20 minutes.
XMake sure that the key is in position 1or 2in
the ignition lock.
XTo switch on: press theÍbutton repeat-
edly until the desired heating level has been
set.
XTo switch off: press theÍbutton repeat-
edly until all indicator lamps go out.
If the on-board voltage is too low, the seat heat-
ing will either switch itself off prematurely or not
come on at all. In this case, too many electrical
consumers are switched on or the battery
charge is not sufficient. The seat heating will
automatically switch back to the current heating level when enough on-board voltage is available
again.
92Seats
Seats, steering wheel and mirrors

Low-beam headlamps
When the ignition is switched on and the light
switch is in theLposition, the parking lamps
and low-beam headlamps are switched on even
if the light sensor does not sense dark ambient
light. This is particularly useful when there is fog
or rain.
XTo switch on: turn the key to position 2in the
ignition lock or start the engine.
XTurn the light switch to the Lposition.
The L indicator lamp in the instrument
cluster lights up.
Daytime running lamps
XTo switch on: turn the light switch to the
$ orà position.
Automatic headlamp mode
GWARNING
When the light switch is set to Ã, the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
L.
Automatic headlamp mode is only a driving aid.
You are responsible for the vehicle lighting at all
times.
When the parking lamps and low-beam head-
lamps are switched on, the green T(parking
lamps) and L(low-beam headlamps) indica-
tor lamps in the instrument cluster light up.
à is the preferred light switch setting. The
light setting is automatically selected according
to the brightness of the ambient light (excep-
tion: poor visibility due to weather conditions,
such as fog, snow or spray):
RKey in position 1in the ignition lock: the
standing lamps are switched on or off auto-
matically depending on the brightness of the
ambient light.
RWhen the engine is on: depending on the
ambient light, the daytime running lamps or
the parking lamps and low-beam headlamps
are switched on/off automatically.
XTo switch on automatic headlamp mode:
turn the light switch to Ã.
Fog lamps/rear fog lamp
You can only switch the fog lamps on or off
manually in vehicles which have fog lamps
installed.
Front fog lamps help you to see and be seen in
conditions of poor visibility due to fog or pre-
cipitation. They can only be operated together
with the parking lamps or with the low-beam
headlamps.
The rear fog lamp improves visibility of your
vehicle for the traffic behind in the event of
heavy fog. Observe the legal requirements of the
country you are currently in when using the rear
fog lamp.
XTurn the light switch to LorÃ.
XTurn the key to position 2in the ignition lock
or start the engine.
XTo switch the front fog lamps on/off: press
the N button.
When the green Nindicator lamp in the
instrument cluster goes on, the fog lamps are
switched on.
XTo switch the rear fog lamp on/off: press
the R button.
When the yellow Rindicator lamp in the
instrument cluster goes on, the rear fog lamp is switched on.
Standing lamps
!If the battery charge is very low, the stand-
ing lamps will switch off automatically to ena-
ble the next engine start. Always park your
vehicle in accordance with legal regulations,
in a secure and adequately lit location. Avoid leaving the Tparking lamps on for several
hours. If possible, switch on the right Xor
left W standing lamp.
Switching on the standing lamps ensures that
the corresponding side of the vehicle is illumi-
nated.
Exterior lighting97
Lights and windshield wipers
Z

Hazard warning lamp switch
XTo switch on/off:press the£hazard
warning lamp switch.
If you have indicated a turn while the hazard
warning lamps are switched on, only the turn
signal lamps on the side of the vehicle selected
will light up.
The hazard warning lamps automatically switch
on if:
Ran air bag is deployed.
Ryou brake sharply and bring the vehicle to a
halt from a speed of more than 45 mph
(70 km/h).
The hazard warning lamps switch off automati-
cally if the vehicle reaches a speed of over 6 mph
(10 km/h) again after a full brake application.
iThe hazard warning lamps still operate even
if the ignition is switched off.
Headlamps fogged up on the inside
The headlamps may fog up on the inside if there
is high atmospheric humidity.
XSwitch on the low-beam headlamps and drive off.
The level of moisture diminishes, depending
on the length of the journey and the weather
conditions (humidity and temperature).
If the level of moisture does not diminish:
XHave the headlamps checked at a qualified
specialist workshop.
Interior lighting
Overview
Interior lighting buttons (example: comfort over-
head control panel)
:
p Switches the front left-hand reading
lamp on/off
;| Switches the automatic interior light-
ing control on and off
=c Switches the front interior lighting on
and off
?w Switches the rear or cargo compart-
ment lighting on/off
Ap Switches the front right-hand reading
lamp on and off
The number and arrangement of the buttons is
equipment-dependent.
General notes
In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time,
unless the key is in position 2in the ignition lock.
Automatic interior lighting control
The interior lighting is activated for about
20 seconds whenthe key is removed from the
ignition lock. For a vehicle with steering wheel
buttons, the light delay function for the interior
lighting can be switched on and off using the on-
board computer (
Ypage 190).
Interior lighting99
Lights and windshield wiper s
Z

settings are reactivated with the exception of
air-recirculation mode. Air-recirculation mode
remains deactivated.
Clearing condensation from the win-
dows
Windows fogged up on the inside
Air-conditioning system
You should only select this setting until the win-
dows are clear again.
XSwitch on the rear window defroster if nec-
essary (Ypage 118).
XSwitch on climate control (Ypage 113).
XSwitch off air-recirculation mode
(Ypage 118).
XTurn temperature control :clockwise to a
higher temperature and air flow control Ato
a blower speed between 3and 6
(
Ypage 111).
XIf possible, only select the ¯setting of the
air distribution (Ypage 116).
Only the indicator lamp in the ¯button
lights up.
XSwitch on the cooling with air dehumidifica-
tion function (Ypage 114).
XIf the windows still fog up, set the climate
control functions as described for defrosting
of the windshield (
Ypage 117).
Dual-zone automatic climate control
You should only select this setting until the win- dows are clear again.
XSwitch on the rear window defroster if nec-
essary (Ypage 118).
XSwitch on climate control (Ypage 113).
XSwitch off air-recirculation mode
(Ypage 118).
XSwitch on the cooling with air dehumidifica-
tion function (Ypage 114).
XSwitch on automatic mode (Ypage 115).
XIf the windows continue to fog up, switch on
the windshield defrosting function
(
Ypage 117).
Windows fogged up on the outside
You should only select this setting until the
windshield is clear again.
XSwitch on the windshield wipers
(Ypage 106).
XSwitch on climate control (Ypage 113).
XIn warm and damp weather, do not allow cold
air to flow onto the windows. Close the side
air vents if required (
Ypage 120).
Switching the rear window defroster
on/off
General notes
The rear window defroster consumes a lot of
power. You should therefore switch off the rear
window defroster as soon as the rear window is
clear.
XTurn the key to position 2in the ignition lock.
XPress the ¤button on the control panel.
If the indicator lamp in the ¤button lights
up, the rear window defroster is switched on.
The rear window defroster switches off auto-
matically after a few minutes.
Problems with the rear window
defroster
The rear window defroster has switched off pre-
maturely or cannot be activated.
The vehicle starter battery is not sufficiently
charged.
XSwitch off any consumers that are not
required, e.g. reading lamps, interior lighting
or seat heating.
When the battery is sufficiently charged, the
rear window defroster can be activated again.
Switching air-recirculation mode
on/off
Important safety notes
You can deactivate the intake of fresh air if
unpleasant odors enter the vehicle from out-
side. The air inside the vehicle is then circulated.
When you switch on air-recirculation mode, the side windows and windows could fog up more
118Operating the climate control system
Climate control