2017 MERCEDES-BENZ METRIS engine

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.
120Driving
Driving and parking

XStow luggage items securely. Secure the load
as per the loading guidelines (Ypage 242).
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 127).
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 121) 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 Rwhen the vehi-
cle is stationary. 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 Dor R.
On vehicles with a reverse warning feature, a
warning signal sounds when reverse gear Ris
engaged to alert other road users
(
Ypage 123).
XRelease the parking brake (Ypage 134).
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 123).
XCarefully depress the accelerator pedal.
It is only possible to shift the transmission from
position Pto the desired position if you depress
the brake p
edal. 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).
122Driving
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.
Driving123
Driving and parking
Z

Important safety notes
GWARNING
If th eengin eis switched off automatically and
you exit th evehicle, th eengin eis restarte d
automatically. The vehicl emay begi nmoving .
Ther eis aris kof acciden tand injury.
If you wish to exit th evehicle, always tur noff
th eignition and secure th evehicl eagainst
rollin gaway.
Automatic engine switch-off
Gene ral notes
The ECO start/sto pfunction is operational
when th eè ECO symbol is shown in th esta-
tus bar of th edisplay.
Fo rthis to happen, various conditions, includin g
th efollowing, must be met :
RtheECO start/sto pfunction is switched on .
The indicator lamp in th eè ECO butto nis
lit (
Ypage 125).
Rtheoutside temperature is abov e32 ‡(0 †).
Rthe engine has reached its operating temper-
ature.
Rthe set temperature for the vehicle interior
has been reached.
Rthe condition of charge of the starter battery
is sufficient.
Rthe system detects that the windshield is not
fogged up when the air-conditioning system
or automatic climate control is switched on.
Rthe hood is closed.
Rthe driver's seat belt is fastened.
Rthe driver's door is closed.
Rthere is no danger of immediately rolling
backwards, e.g. when stopped on a steep gra-dient.
If a trailer is attached and/or a rear carrier
system is installed and connected electri-
cally, this danger is detected on less steep
gradients.
Only if all the conditions for automatic engine
switch-off are fulfilled, does the display show
the è ECO symbol.
All of the vehicle's systems remain active when
the engine is switched off automatically.
The engine can be switched off automatically a
maximum of four times (initial stop, then three subsequent stops) in succession. After that, the
display hides the èECO symbol. Automatic
engine switch-off is not possible again until the
è ECO symbol is shown again.
If you open the hood after an a
utomatic engine
switch-off, the automatic engine start is deacti-
vated. Once the hood is closed, you have to start
the engine manually.
If the vehicle is stopped in Dor N, the ECO start/
stop function switches off the engine automat-
ically once the vehicle is stationary.
Automatic engine start
General notes
The engine is started automatically if:
Ryou switch off the ECO start/stop function by
pressing the èECO button The indicator
lamp in the èECO button then goes out.
(
Ypage 125)
Ryou depress the accelerator pedal.
Ryou engage reverse gear R.
Ryou unfasten your seat belt.
Ryou open the driver's door.
Rthe vehicle begins to roll away.
Rthe brake system requires this.
Rthe temperature in the vehicle interior
increasingly deviates from the set value.
Rthe system detects moisture on the wind-
shield when the air-conditioning system is
switched on.
Rthe battery's condition of charge is too low.
The engine is started automatically if you:
Rswitch to drive program M(Ypage 129)
Rrelease the brake pedal when in transmission
position Dor N
Rswitch to transmission position P
After shifting from transmission position Rto D,
the ECO start/stop function is not available until
the è ECO symbol is shown in the display.
124Driving
Driving and parking

Activating and deactivating the ECO
start/stop functionXPress theè ECO button.
When th eindicator lamp in th eè ECO
butto nlights up, th eECO start/sto pfunction
is activated.
When all th econdition sfor automatic engin e
switch-off are fulfilled ,th edisplay shows th e
è ECO symbol in th estatus bar
(
Ypage 124). The engin eis then automati-
call yswitched off when th evehicl ecomes to
a stop.
Problems with the engine
ProblemPossible causes/consequences and MSolutions
The enginedoes no t
start .
The starter motor can be
heard.There is amalfunction in th efuel supply.
XTurn th eke ybac kto position 0in th eignition loc kbefore attempting
to start th eengin eagain .
XStart th eengin eagain .
Pleas ebear in min dthat lengthy and frequen tstarting attempts will
drai nth ebattery.
If th eengin edoes no tstart after several attempts :
XConsultaqualified specialist workshop .
The enginedoes no t
start .
The starter motor can be
heard. The reserv efuel
warning lamp is lit and
th efuel gage is at 0.The fuel tankhas been run dry.
XRefue lth evehicle.
The engin edoes no t
start .
The starter motor canno t
be heard.The on-board voltag eis to olow. The battery is to oweak or discharged.
XJump-start th evehicl e (Ypage 272).
If th eengin ecanno tbe jump-started, th estarter motor is faulty.
XConsult aqualified specialist workshop .
Driving125
Driving and parking
Z

ProblemPossible causes/consequences andMSolutions
The engine does not
start.
The starter motor cannot
be heard.The battery is discharged or faulty.
XCheck the battery for damage.
XCharge the battery (Ypage 262).
The engine is not running
smoothly and is misfir-
ing.There is a malfunction in the engine electronics or a mechanical com-
ponent of the engine management system.
XOnly depress the accelerator pedal slightly.
Unburnt fuel may otherwise get into the catalytic converter and
damage it.
XHave the cause rectified immediately at a qualified specialist work-
shop.
Automatic transmission
Important safety notes
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.
GWARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
Before switching off the engine, always switch
to parking position P. Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
!If the engine is switched off, rolling in neutral
N can damage the power transmission and
result in transmission damage.
Always observe the instructions and safety
notes under "Tow starting and towing away"
(
Ypage 274).
Bear in mind that power transmission between
the engine and the transmission is interrupted
when the engine is switched off. For this reason,
shift the automatic transmission to Pbefore the engine is switched off and with the vehicle is
stationary. Apply the parking brake to prevent
the vehicle from rolling away.
DIRECT SELECT lever
Overview of the transmission shift sys-
tem
jPark position with parking lock
kReverse gear
iNeutral
hDrive
The DIRECT SELECT lever is on the right of the
steering column.
The DIRECT SELECT lever always returns to its
original position. The display in the instrument
cluster shows the current transmission position,
namely P,R, Nor D(
Ypage 128).
126Automatic transmission
Driving and parking

Selecting transmission positions
!If the engine speed is too high or the vehicle
is moving, do not shift the automatic trans-
mission directly from Dto R, from Rto Dor
directly to P. The automatic transmission
could otherwise be damaged.
!Only shift the automatic transmission to R
when the vehicle is stationary.
XIf park position Pis selected, depress the
brake pedal to change the transmission posi-
tion.
XDrive position D: push the DIRECT SELECT
lever down beyond the 1st point of resist-
ance.
XReverse gear R: push the DIRECT SELECT
lever up beyond the 1st point of resistance.
iThe ECO start/stop function is not available
when reverse gear is engaged. Further infor-
mation can be found under "ECO start/stop
function" (
Ypage 123).
XNeutral N: push the DIRECT SELECT lever up
or down as far as the 1st point of resistance.
iWhen you switch off the engine, the auto-
matic transmission shifts to Nautomatically.
XPark position P: press the button of the
DIRECT SELECT lever in the direction of arrow
P.
Park position Pis engaged automatically if you:
Rremove the key
Ropen the driver's door while the vehicle is sta-
tionary or traveling at very low speeds and the
transmission is in position Dor R
If you want the automatic transmission to
remain in neutral Nafter you switch off the
engine, you must leave the key in the ignition
lock. This is necessary, for example, when wash-
ing the vehicle in a car wash with a conveyor.
Transmission positions
BPark position
This prevents the vehicle from rolling
away when stopped. Do not shift the
transmission into position Punless
the vehicle is stationary.
The automatic transmission shifts to P automatically if you:
Rremove the key
Ropen the driver's door while the
vehicle is stationary or traveling at
very low speeds and the transmis-
sion is in position Dor R.
The parking lock should not be used
as a brake when parking. Always
apply the parking brake as well once
you have parked the vehicle.
CReverse gear
Only shift the transmission to Rwhen
the vehicle is stationary.
ANeutral
No power is transmitted from the
engine to the drive wheels. Releasing
the brakes will allow you to move the
vehicle freely, e.g. by pushing or tow-
ing.
If ESP
®is deactivated or faulty: shift
the transmission to position Nif the
vehicle is in danger of skidding, e.g.
on icy roads.
When you switch off the engine, the
automatic transmission automati-
cally shifts into neutral N.
!If the engine is switched off, roll-
ing in neutral Ncan damage the
power transmission and result in
transmission damage.
7Drive
The automatic transmission changes
gear itself. All forward gears are avail-
able.
You can influence gearshifts with
your choice of drive program. You
can also restrict the shift range.
Automatic transmission127
Driving and parking
Z

Transmission position and drive pro-
gram display
:Drive program
;Current transmission position orcurrent gear in drive program M
=Shift range, if restricted
The transmission positions and current drive
program :are shown at the bottom of the
instrument cluster display. The current trans-
mission position is highlighted.
In drive program M, the transmission position
indicator shows the current gear in position D
(
Ypage 130).
If you restrict the shift range, the transmission
position indicator shows the current transmis-
sion position plus restricted shift range =, e.g.
D2 (
Ypage 128).
The arrows in the transmission position display
show how and into which transmission positions
you can change using the DIRECT SELECT lever.
Changing gear
The 7-speed automatic transmission adapts to
your individual driving style by continuously
adjusting its shift points. These shift point
adjustments take into account the current oper-
ating and driving conditions. If the operating or
driving conditions change, the automatic trans-
mission reacts by adjusting the gearshift pro-
gram.
The 7-speed automatic transmission shifts to
the individual gears automatically when it is in
transmission position D. This depends on:
Rthe drive program selected (Ypage 129)
Rany restriction in the shift range
(Ypage 128)
Rthe position of the accelerator pedal
Rthe road speed
You can also change gear manually if you select
drive program M(
Ypage 130).
Shift ranges
:To shift down and restrict the shift range
;To shift up and derestrict the shift range
In transmission position Dand drive programs E
and C, you can use the steering wheel paddle
shifters to change gear yourself and restrict or
derestrict the shift range of the automatic trans-
mission.
XTo shift down and restrict the shift range:
briefly pull left steering wheel paddle
shifter :.
The automatic transmission shifts to the next
gear down, depending on the gear currently
engaged. The shift range is also restricted.
The transmission position indicator also
shows the set shift range, e.g. D2. The auto-
matic transmission shifts only as far as the
relevant gear.
or
XPull and hold left steering wheel paddle
shifter :.
The automatic transmission will shift to a
range which allows easy acceleration and
deceleration. To do this, the automatic trans-
mission shifts down one or more gears and
restricts the shift range.
The transmission position indicator also
shows the set shift range, e.g. D2. The auto-
matic transmission shifts only as far as the
relevant gear.
The automatic transmission does not shift
down if you pull the left steering whee l p
addle
shifter whilst traveling at too high a speed. If
the maximum engine speed for the restricted
shift range is reached and you continue to
depress the accelerator pedal, the automatic transmission will shift up automatically. This
protects the engine from overrevving.
128Automatic transmission
Driving an d parking