engine MERCEDES-BENZ METRIS 2019 MY19 Operator’s Manual

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

Switching on the standing lamps:
XTurn the key to position0(Ypage 123) in the
ignition lock or remove the key.
XRight-hand standing lamp: turn the light
switch to position X.
XLeft-hand standing lamp: turn the light
switch to position W.
Combination switch
Turn signal lamp
:To indicate a right turn
;To indicate a left turn
XTo indicate: press the combination switch in
desired direction :or; until it engages.
The combination switch automatically returns
to its original position after large steering
movements.
XTo indicate briefly: press the combination
switch briefly in desired direction :or;.
The corresponding turn signal flashes three
times.
High-beam headlamps and high-beam
flasher
:High-beam headlamps
;High-beam flasher
XTo switch on the high-beam headlamps:
turn the light switch to LorÃ.
XPress the combination switch forwards :.
The K indicator lamp in the instrument
cluster lights up.
iIn the Ãposition, the high-beam head-
lamps are only switched on when it is dark and
the engine is running.
XTo switch off the high-beam headlamps:
move the combination switch back to its nor-
mal position.
The K indicator lamp in the instrument
cluster goes out.
XTo flash the headlamps: turn the key to
position 1or2 in the ignition lock.
XPull the combination switch briefly in direc-
tion of arrow ;.
Hazard warning lamps
GWARNING
If you open the rear doors 90°, the rear lights are no longer visible. The vehicle will then be
difficult for other road users to see or will not
be seen by them at all, particularly if it is dark
or visibility is poor. There is a risk of an acci-
dent.
You should therefore ensure in this and simi-
lar situations that the vehicle is visible from
the rear in accordance with the relevant
national regulations, by using the warning tri-
angle, for instance.
98Exterior lighting
Lights and windshield wipers

Useful information
This Operator's Manual describes all models as
well as standard and optional equipment of your
vehicle that were available at the time of going
to print. Country-specific variations are possi-
ble. Note that your vehicle may not be equipped
with all of the described functions. This also
applies to systems and functions relevant to
safety.
Read the information on qualified specialist
workshops (
Ypage 31).
Overview of climate control systems
Important safety notes
Observe the recommended settings on the fol-
lowing pages. Otherwise, the windows could fog
up.
To prevent the windows from fogging up:
Ronly switch off climate control briefly
Ronly switch on air-recirculation mode briefly
Rfor vehicles with air-conditioning system or
dual-zone automatic climate control, switch
on the "Cooling with air dehumidification"
function
Rfor vehicles with dual-zone automatic climate
control, switch on the windshield defrosting
function briefly, if requiredClimate control regulates the temperature and
the humidity in the vehicle interior and filters
undesirable substances from the air.
Climate control is only operational when the
engine is running. The system only functions
optimally when the side windows are closed.
Ventilate the vehicle for a brief period during
warm weather. In order to cool the vehicle more
rapidly, switch climate control to air-recircula-
tion mode briefly. This will speed up the cooling
process and the desired interior temperature
will be reached more quickly.
The integrated filter can filter out most particles
of dust and completely filters out pollen. In vehi-
cles with dual-zone automatic climate control,
gaseous pollutants and odors will also be
reduced. A clogged filter reduces the airflow into
the vehicle interior. For this reason, you should
always observe the interval for replacing the fil- ter, which is specified in the Maintenance Book-
let. As the interval between changes depends on
environmental conditions, e.g. heavy air pollu-
tion, the interval may be shorter than stated in
the Maintenance Booklet.
110Overview of climate control systems
Climate control

Control panel for the air-conditioning system
:Sets the temperature (Ypage 115)
z Defrosts the windshield (
Ypage 117)
;/Switches the rear-compartment air conditioning on/off (Ypage 113)
=_Sets the air distribution (Ypage 116)
¯ Defrosts the windshield (
Ypage 117)
?hActivates/deactivates air-recirculation mode (Ypage 118)
AKSets the airflow (Ypage 116)
z Defrosts the windshield (
Ypage 117)
B¿Switches the cooling with air dehumidification function on/off (Ypage 114)
C¤Switches the rear window defroster and mirror heating on/off (Ypage 118)
Optimum use of the air-conditioning
system
Below, you can find a number of notes and rec-
ommendations to help you use the air-condi-
tioning system optimally.
RSwitch on the cooling with air dehumidifica-
tion function. The indicator lamp in the
¿ switch comes on when the function is
switched on.
RSet the temperature to 72 ‡ (22 †).Only
ch ange the temperature in small increments.
ROnly use the settings for defrosting the wind-
shield briefly, until the windshield is clear
again.
ROnly use air-recirculation mode briefly, e.g. if
there are unpleasant outside odors or when in a tunnel. The windows could otherwise fog up
as no fresh air is drawn into the vehicle in air-
recirculation mode. The indicator lamp in the
h
switch comes on when the function is
switched on.
During automatic engine switch-off, the climate
control system only operates at a reduced capa-
city. Further information on the automatic
engine switch-off can be found under "ECO
start/stop function" (
Ypage 125).
Overview of climate control systems111
Climate control

RIf you wish to use the driver's side settings on
the front-passenger side and, for vehicles
with rear-compartment air conditioning, for
the rear compartment as well, use the "Syn-
chronization" function. The indicator lamp in
the0 button comes on when the function
is switched on.
RAfter long journeys, you can use the residual
heat of the engine to heat the stationary vehi-
cle. The residual heat utilization can only be
switched on or off while the ignition is
switched off. The indicator lamp in the Ì
button comes on when the function is
switched on.
Approximately 60 minutes after parking the
vehicle, dual-zone automatic climate control
can switch on automatically, depending on the
outside temperature. The vehicle is then venti-
lated for about 30 minutes at low fan setting and
dual-zone automatic climate control is dried out.
During automatic engine switch-off, the climate
control system only operates at a reduced capa-
city. Further information on the automatic
engine switch-off can be found under "ECO
start/stop function" (
Ypage 125).
Optimum use of rear-compartment air
conditioning
Vehicles with air-conditioning system
Switch the rear-compartment air-conditioning
system on and off using the air-conditioning sys-
tem control panel. When you switch on the rear-
compartment air conditioning, your settings for
temperature, airflow and air distribution are
automatically adopted on the control panel for
the rear-compartment air conditioning.
The indicator lamp in the /button comes on
when the rear-compartment air-conditioning is
switched on (
Ypage 111).
Vehicles with dual-zone automatic climate
control
To operate the rear-compartment air condition-
ing, use the control panel of the dual-zone auto-
matic climate control system. When you switch
on the rear-compartment air conditioning, you
can set the temperature and airflow separately
on the control panel. The airflow setting is auto-
matically adopted for the rear-compartment air
conditioning. When dual-zone automatic cli-
mate control is in Ãautomatic mode, the air
distribution of the rear-compartment air condi-
tioning is also automatically adjusted. When you set the temperature and airflow of the
rear-compartment air conditioning, the indica-
tor lamp of the
/button (
Ypage 112)
flashes. When the rear-compartment air condi-
tioning is switched on, the indicator lamp on
the / button lights up.
For optimum climate control, set the tempera-
ture to 72 ‡ (22 †) and switch on Ãauto-
matic mode. Only change the temperature in
small increments.
Operating the climate control system
Switching the climate control on/off
Important safety notes
When the climate control is switched off, air
intake and air circulation also stop. Only use this
setting for a brief period. Otherwise, the win-
dows could fog up.
Air-conditioning system
XTurn the key to position 2in the ignition lock.
XTo switch on: turn airflow control Aclock-
wise to at least level 1– (Ypage 111).
XTo switch off: turn airflow control Acoun-
ter-clockwise to position 0.
Dual-zone automatic climate control
XTurn the key to position2in the ignition lock.
XTo switch on: press theÃbutton.
The indicator lamp in the Ãbutton and the
display are switched on. The climate control is
automatically adjusted depending on the set
temperature (
Ypage 115).
or
XPress the Kbutton and set blower setting
1 or above.
The blower settings are shown in the display
as a bar graph.
XTo switch off: press theIbutton and,
after reaching the lowest blower speed, press
it again.
The control panel display goes off.
Preferably switch on climate control using the
à button.
Operating the climate control system113
Climate control

Rear-compartment air-conditioning
system
Vehicles with air-conditioning system
XSwitch on air-conditioning system.
XTo activate/deactivate:press the/but-
ton on the air-conditioning system control
panel.
The indicator lamp in the /button comes
on when the rear compartment air condition-
ing is switched on. The settings for tempera-
ture, airflow and, in the case of rear-compart-
ment air conditioning, air distribution are
adopted for the rear-compartment air condi-
tioning.
Vehicles with dual-zone automatic cli-
mate control
XSwitch on dual-zone automatic climate con-
trol.
XTo switch on: press the/button on the
control panel.
The indicator lamp in the /button flashes.
The control panel display shows the second
menu level for the temperature and airflow
setting of the rear compartment air condi-
tioning.
XPress the Kbutton and set blower setting
1 or above for the rear-compartment air con-
ditioning.
The blower settings are shown in the display
as a bar graph. The rear-compartment air con- ditioning is switched on.
XIf necessary set the temperature for the rear-compartment air conditioning using temper-
ature control :orE (
Ypage 112).
The display shows the selected rear-compart-
ment temperature.
If you do not make any more settings for
approximately ten seconds, the control panel display shows menu level 1 again for the auto-
matic climate control settings. The ind icato
r
lamp in the /button remains lit.
iThe air distribution setting applies both to
automatic climate control and to the rear-
compartment air conditioning and cannot be
set separately for the two.
XTo switch off: press the/button on the
control panel.
The indicator lamp in the /button flashes.
The control panel display shows the second
menu level for the temperature and airflow setting of the rear compartment air condi-
tioning.
XPress the
Ibutton and, after reaching the
lowest blower speed, press it again.
The control panel display goes off and the
rear-compartment air conditioning is
switched off.
If you do not make any more settings for
approximately ten seconds, the control panel
display shows menu level 1 again for the auto-
matic climate control settings. The indicator
lamp in the /button goes out.
Switching the cooling with air dehu-
midification function on/off
Important safety notes
The cooling with air dehumidification function of
the air conditioning or automatic climate control
is only available when the engine is running. The
air inside the vehicle is cooled and dehumidified
according to the temperature selected.
Condensation may appear on the underside of
the vehicle when in cooling mode. This is normal
and not a sign that there is a malfunction.
If you switch off the "Cooling with air dehumid-
ification" function, the air inside the vehicle will
not be cooled (in warm weather) or dehumidi-
fied. Therefore, only switch off the "Cooling with air dehumidification" function briefly. Other-
wise, the windows will fog up more quickly.
Switching on and off
For dual-zone automatic climate control, the
function for automatic climate control settings
can only be activated or deactivated on the first
menu level. If you do not set a new value for the
rear-compartment climate control in the second
menu level within approx. ten seconds, the con-
trol panel display goes back to the first menu
level.
XPress the ¿button.
The indicator lamp in the ¿switch comes
on when the function is switched on.
iThe cooling with air dehumidification func-
tion has a delayed switch-off feature.
114Operating the climate control system
Climate control

quickly, in particular at low outside tempera-
tures. Only switch on air-recirculation mode for
a short time.
Air-conditioning system or dual-zone
automatic climate control
XSwitch on climate control (Ypage 113).
XPress thehbutton.
If the indicator lamp in the hbutton lights
up, air-recirculation mode is activated.
Air-recirculation mode switches on automati-
cally:
Rat high outside temperatures.
Rwhile driving in a tunnel (only vehicles with a
navigation system).
The indicator lamp in the hbutton is then not
lit up. Outside air is added automatically after
about 30 minutes.
Air-recirculation mode is deactivated automati-
cally:
Rafter approximately five minutes at outside
temperatures below about 45 ‡ (7 †)
Rafter approximately five minutes when the
cooling with air-dehumidification function is
deactivated
Rafter approximately 30 minutes at outside
temperatures above about 45 ‡ (7 †) and
when the cooling with air-dehumidification
function is active
Convenience opening/pre-entry cli-
mate control
GWARNING
During convenience opening, body parts
could be drawn in or become trapped
between the side window and the door frame.
There is a risk of injury.
Monitor the entire opening procedure when
using convenience opening. When opening,
make sure that nobody touches the side win- dow. Release the %switch immediately if
somebody becomes trapped, to interrupt the
opening procedure.
XPre-entry climate control and conveni-
ence opening with the key: press and hold
the % button on the key.
The side windows open automatically and the
blower of the climate control system is acti-
vated.
XRelease the %button.
iAt high interior temperatures, the blower is
also switched on when a door is opened. This
means that slightly cooled air enters the vehi-
cle interior after the engine is started, to cool
the vehicle more rapidly.
Switching the residual heat function
on/off
General notes
Only vehicles with dual-zone automatic climate
control have the residual heat function.
Once the engine is switched off, it is possible to
make use of the residual heat of the engine to
continue heating or ventilating the front com-
partment of the vehicle for approximately
30 minutes. The heating or ventilation time
depends on the set interior temperature.
Switching the function on/off
XTurn the key to position 0in the ignition lock
or remove it.
XPress the Ìbutton.
If the residual heat function is activated, the
indicator lamp in the Ìbutton comes on.
The blower will run at a low speed regardless
of the airflow setting.
If you activate the residual heat function at
high temperatures, only the auxiliary ventila-
tion will be activated. The blower then runs at
medium speed.
The residual heat function switches off auto-
matically
Rafter approximately 30 minutes
Rif the starter battery's condition of charge is
too low
Rwhen you switch on the ignition
Operating the climate control system119
Climate control
Z

Useful information
This Operator's Manual describes all models as
well as standard and optional equipment of your
vehicle that were available at the time of going
to print. Country-specific variations are possi-
ble. Note that your vehicle may not be equipped
with all of the described functions. This also
applies to systems and functions relevant to
safety.
Read the information on qualified specialist
workshops (
Ypage 31).
Breaking-in notes
Important safety notes
In certain driving and driving safety systems, the
sensors adjust automatically while a certain dis-
tance is being driven after the vehicle has been
delivered or after repairs. Full system effective- ness is not reached until the end of this teach-in
procedure.
New or replaced brake pads and brake discs
only reach their optimal braking effect after a
few hundred kilometers of driving. Until then,
compensate for this by applying greater force to
the brake pedal.
The first 1000 miles (1500 km)
For the service life and economy of your vehicle
it is crucial that you break in the engine with due
care.
RTherefore, protect the engine for the first
1000 miles (1500 km) by driving at varying
vehicle and engine speeds.
RAvoid overstraining the vehicle and high
engine speeds during this period, e.g. driving
at full throttle. Do not exceed Øof the per-
missible maximum speed for each gear.
RDo not change down a gear manually in order to brake.
RTry to avoid depressing the accelerator pedal
beyond the pressure point (kickdown).
After 1000 miles (1500 km), you can increase
the engine speed gradually and accelerate the
vehicle to full speed.
iYou should also observe these notes on
breaking-in if the engine or parts of the drive
train on your vehicle have been replaced.
Driving
Important safety notes
GWARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or
parts of the engine that heat up. There is a risk
of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials in
the engine compartment or in the exhaust
system.
GWARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
GWARNING
If the parking brake has not been fully
released when driving, the parking brake can:
Roverheat and cause a fire
Rlose its hold function.
There is a risk of fire and an accident. Release
the parking brake fully before driving off.
!Warm up the engine quickly. Do not use the
engine's full performance until it has reached
operating temperature.
Only shift the automatic transmission to the
desired drive position when the vehicle is sta-
tionary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery roads.
You could otherwise damage the drive train.
122Driving
Driving and parking

XStow luggage items securely. Secure the load
as per the loading guidelines (Ypage 244).
XMake sure that the floormats and carpets are
properly secured so that they cannot slip and
obstruct the pedals.
XClose all doors.
Starting the engine
Important safety notes
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
!Do not depress the accelerator when start-
ing the engine.
XBefore starting the engine, make sure that:
Rall the doors are closed.
Rall the vehicle occupants are wearing their
seat belts correctly.
Rthe parking brake is applied.
iIf you depress the brake pedal before start-
ing the engine, the pedal travel may be shorter
and pedal resistance higher.
If you depress the brake pedal again after
starting the engine, pedal travel and resist-
ance will be back to normal again.
Automatic transmission
XShift the transmission to position P
(Ypage 129).
The transmission position indicator in the dis-
play shows P.
You can also start the engine in neutral N.
Starting the engine
XTurn the key to position3in the ignition lock
(Ypage 123) and release it as soon as the
engine is running.
Driving off
Automatic transmission
GWARNING
If the engine speed is above the idling speed
and you engage transmission position Dor R,
the vehicle could pull away suddenly. There is
a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do not simultaneously accelerate.
!Only shift into reverse gear when the vehicle
is stationary k. Otherwise, you could dam-
age the transmission.
XDepress the brake pedal and keep it
depressed.
The parking lock is released.
XShift the transmission to position hork.
On vehicles with a reverse warning feature,
when reverse gear kis engaged a warning
tone sounds to alert other road users
(
Ypage 125).
XRelease the parking brake (Ypage 136).
The F (only USA) or J(only Canada)
indicator lamp in the instrument cluster goes
out.
XRelease the brake pedal.
Hill start assist automatically maintains the
brake pressure for about another two sec-
onds after the brake pedal is released. This
makes it possible to pull away without the
vehicle immediately rolling back
(
Ypage 125).
XCarefully depress the accelerator pedal.
It is only possible to shift the transmission from
position jto the desired transmission position
if you d
epress the brake pedal. Only then is the
parking lock released. If the brake pedal is not
depressed, the DIRECT SELECT lever can still be
moved but the parking lock remains engaged.
The vehicle locks centrally once you have pulled
away. The locking knobs in the doors drop down.
You can open the doors from the inside at any
time.
You can also deactivate the automatic locking
feature (
Ypage 74).
124Driving
Driving and parking

Hill start assist
Hill start assist helps you when pulling away for-
wards or in reverse on an uphill gradient. Hill
start assist automatically maintains the brake
pressure for about another second, after you
have taken your foot off the brake pedal. This
gives you enough time to move your foot from
the brake pedal to the accelerator pedal and
depress it before the vehicle begins to roll.
GWARNING
After a short time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is a risk of an accident and injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill start assist is not active if:
Ryou are pulling away on a level road or a
downhill gradient
Rthe transmission is in position N
Rthe parking brake is applied
RESP®is malfunctioning
Reverse warning device
GWARNING
Other road users may ignore or fail to hear the warning tone of the reverse warning feature.
There is a risk of injury if you fail to ensure that
the area in which you are maneuvering is
clear.
Make sure that there are no persons or
objects in the area in which you are maneu-
vering. It may be necessary to enlist the help
of a second person when maneuvering.
The reverse warning feature is a system
designed to assist you in ensuring the safety of
other road users.
A warning signal sounds to alert other road
users when reverse gear is engaged. The volume
of the warning tone can be reduced for night-
time driving.
XTo reduce the volume of the warning tone:
engage reverse gear twice in quick succes-
sion.
The warning tone is now quieter.
iThe warning tone sounds at a normal vol-
ume by default. The volume of the warning
tone has to be reduced each time you engage
reverse gear if necessary.
ECO start/stop function
General notes
When the ECO start/stop function is opera-
tional, it switches the engine off automatically if
the vehicle is slowed to a stop under certain
conditions.
When pulling away again, it starts the engine
automatically. The ECO start/stop function
thereby helps you to reduce the fuel consump-
tion and emissions of your vehicle.
The stop/start function is automatically activa-
ted each time you start the engine with the key.
In drive program Mthe ECO start/stop function
is automatically deactivated. You can manually
activate the ECO start/stop function if required.
Display (example for vehicles without steering
wheel buttons)
Display (example for vehicles with steering wheel
buttons)
If the display shows èECO symbol :in the
status area or in the footer, the ECO start/stop
function will switch the engine off automatically
when the vehicle comes to a stop.
Driving125
Driving and parking
Z