2017 MERCEDES-BENZ METRIS service indicator

!Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately. Drive
on for a short while. The brakes are cooled down
more quickly in the airflow.
Wet road surfaces
If you have been driving for a long time in heavy
rain without braking, there may be a delayed
response when you first apply the brakes. This
may also occur after driving through a car wash
or deep water.
You must depress the brake pedal more firmly.
Maintain a longer distance to the vehicle in
front.
While paying attention to the traffic conditions,
you should brake the vehicle firmly after driving
on a wet road surface or through a car wash. This
heats the brake discs, so that they dry more
quickly, which protects them against corrosion.
Limited braking performance on salt-
treated roads
When driving on salted roads, salt may start to
build up on the brake disks and brake pads. This can increase braking distances considerably.
Maintain a greater distance to the vehicle in
front.
To remove any build-up of salt that may have
formed:
XApply the brakes at the start of the journey,
occasionally during journey and at the end of
the journey. Make sure that you do not endan-
ger other road users when doing so.
Checking the brake pad thickness
In addition to monitoring using the brake pad
wear sensor, regularly monitor and check all of
the brake pads by performing a visual inspection
to look for pad material wear.
If you are unable to check the brake wear on the
inside of the wheels, remove the wheels with the tools provided.
Make sure that the brake pad material thickness
never falls below 0.12 in (3 mm). Have the brake pads checked and replaced at a qualified spe-
cialist workshop, if necessary. Do not solely rely on the brake pad wear sensor.
It is strongly recommended that you have the
brake pads checked at a qualified specialist
workshop at every service displayed in the main-
tenance interval indicator, prior to long journeys
and whenever the wheels are removed.
New brake discs and brake pads/
linings
New brake pads and brake discs only reach their
optimal braking effect after about 60 miles
(100 kilometers). Until then, compensate for
this by applying greater force to the brake pedal.
For safety reasons, Mercedes-Benz recom-
mends only installing the following brake discs
and brake pads/linings:
Rbrake discs that have been approved by
Mercedes-Benz
Rbrake pads/linings that have been approved
by Mercedes-Benz or are of an equivalent
standard of quality
Other brake discs or brake pads/linings can
compromise the safety of your vehicle.
Always replace all brake discs or brake pads/
linings on an axle at the same time and only have
them replaced at a qualified specialist work-
shop. When replacing the brake discs, always
have the brake pads/linings replaced at the
same time.
Parking brake
GWARNING
If you must brake the vehicle with the parking brake, the braking distance is considerably
longer and the wheels could lock. There is an
increased danger of skidding and accidents.
Only use the parking brake to brake the vehi-
cle when the service brake is faulty. Do not
apply the parking brake too firmly. If the
wheels lock, release the parking brake until
the wheels begin turning again.
When driving on wet roads or dirt-covered sur-
faces, road salt and/or dirt may get into the
parking brake. This causes corrosion and a
reduction of braking force.
In order to prevent this, drive with the parking
brake lightly applied from time to time. When
doing so, drive for a distance of approximately
138Driving tips
Driving and parking

XPressato confirm.
The current status is shown.
XTo activate/deactivate: pressaagain.
If the å warning lamp in the instrument
cluster lights up when the vehicle is ready to
drive, ESP
®is deactivated.
If the ÷ warning lamp lights up continuously,
ESP
®is not available due to a malfunction.
Observe the information on warning lamps
(
Ypage 222) and display messages
(Ypage 208).
Activating/deactivating the distance
warning function
Using the steering wheel buttons
XPress =or; to select the Assist.menu.
XPress9or: to select DistanceWarning.
XPressato confirm.
The current status is shown.
XTo activate/deactivate: press theabut-
ton again.
If the distance warning function of COLLISION
PREVENTION ASSIST is activated, the display
shows the Äsymbol in the header.
At speeds up to approx 20 mph (30 km/h),
the display in vehicles with Active Parking
Assist first shows the ístatus indicator.
Only up to a speed of about 20 mph
(30 km/h) does the display show the Ä
symbol instead of the ístatus indicator.
Further information can be found under "COL-
LISION PREVENTION ASSIST" (
Ypage 144).
Setting ATTENTION ASSIST
Using the steering wheel buttons
XPress =or; to select the Assist.menu.
XPress:or9 to select AttentionAssist.
XPressato confirm.
The current setting is displayed.
XTo change the setting: pressaagain.
XPress :or9 to set Deactivated,
Standardor Sensitive.
XPress ato confirm the choice.
If ATTENTION ASSIST is activated, the À
symbol is shown in the status area of the dis- play. The selection
Standard
orSensitivesets the sensitivity with which the system
determines the attention level.
Further information can be found under "ATTEN-
TION ASSIST" (
Ypage 150).
Activating/deactivating Blind Spot
Assist
Using the steering wheel buttons
XPress =or; to select the Assist.menu.
XPress:or9 to select Blind SpotAssist.
XPressato confirm.
The current status is shown.
XTo activate/deactivate: press theabut-
ton again.
Further information can be found under "Blind
Spot Assist" (
Ypage 146).
Setting Lane Keeping Assist
Using the steering wheel buttons
XPress =or; to select the Assist.menu.
XPress:or9 to select LaneKeepingAssist.
XPressato confirm.
The current selection StandardorAdaptiveis displayed.
XTo change the setting: pressaagain.
Further information can be found under "Lane
Keeping Assist" (
Ypage 148).
Service menu
On-board computer (vehicles with steering wheel buttons)185
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
F(USA
only)
!(Canada
only)
Releas ePark. Brake
The red F(USAonly)/! (Canada only) indicator lamp in th e
instrumen tcluste rlights up and awarning tone also sounds.
You are drivin gwit hth eparking brak eapplie dor are making an emer-
gency stop usin gth eparking brake.
XReleas eth eparking brak e (Ypage 134).
6
MalfunctionServiceReq.
The restrain tsystem is faulty. In addition ,th e6 warning lamp
lights up in th einstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th eevent of an accident, may no tbe triggered .
There is an increased ris kof injury.
XHav eth erestrain tsystem and it scomponent schecke dimmedi-
ately at aqualified specialist workshop .
Further information on th erestrain tsystem and it scomponent scan
be found under "Occupant safety" (
Ypage 45).
6
Fr. LeftMalf. Ser ‐viceReq .orFr.RightMalf.Servic eReq.
The fron tlef tor right restrain tsystem is malfunctioning .In addition ,
th e6 warning lamp lights up in th einstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th eevent of an accident, may no tbe triggered .
There is an increased ris kof injury.
XHav eth erestrain tsystem and it scomponent schecke dimmedi-
ately at aqualified specialist workshop .
LeftCurtai nAirbagServiceRequiredor
Rt. Curtai nAirbag
Servic eRequired
There is amalfunction in th elef tor right window curtai nair bag. In
addition ,th e6 warning lamp lights up in th einstrumen tcluster.
GWARNIN G
The lef tor right window curtai nair bag may either be triggered unin-
tentionally or, in th eevent of an accident, may no tbe triggered .
There is an increased ris kof injury.
XHav eth erestrain tsystem checke dimmediately at aqualified spe -
cialist workshop .
Display messages (vehicles without steering wheelbu ttons)195
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
ÒThe tailgateis open .
XCloseth etailgate.
ÑThe rear door is open .
XCloseth erear door(s).
ÓAn additional warning tone sounds. The hoo dis open .
GWARNIN G
The open hoo dmay then bloc kyour vie wwhen th evehicl eis in motion .
There is aris kof an accident.
XStop th evehicl eimmediately, payin gattention to roa dand traffic
conditions.
XSecur eth evehicl eto preven tit from rollin gaway (Ypage 133).
XCloseth ehood.
CAn additional warning tone sounds while th evehicl eis in motion .The
display shows th eopen door(s).
XClos eall doors.
Ð
Power Steering Mal ‐function See Oper.Manual
An additional warning tone sounds. The steering powe rassistanc e
could be malfunctioning .You may need to steer mor eforcefully.
XCarefully continu eto aqualified specialist workshop and hav eth e
steering checke dimmediately.
Â
Obtain aNew Key
The ke yneeds to be replaced.
XVisit aqualified specialist workshop .
Phone No ServiceYour vehicleis outside th enetwork provider' stransmitter/receiver
range.
¥
Check Washer Fluid
The washer flui dlevel in th ewasher flui dreservoir has dropped belo w
th eminimum .
XAddwasher flui d (Ypage 256).
Indicatorand warning lamps in the instrume nt cluster
General notes
Whe nswitching on th eignition ,som esystems carry out aself-test .Some indicator and warning
lamp smay temporarily tur non or start to flash. This is no tan indication of any problem .Only when
these indicator and warning lights tur non or start flashin gafter th eengin ehas started or during th e
journey has amalfunction occurred .
Indicator and warning lamps in the instrument cluster219
On-board computer and displays
Z

the side of the battery housing in the connec-
tion area.
XPlace the positive clamp cover on positive
terminal:.
XFold both handles =down onto the battery.
XPush the battery into the seat base until the
negative terminal can be connected.
XConnect the negative clamp to negative ter-
minal ?.
XPush the battery into the seat base as far as it
will go.
Open seat base with installed battery (example:
right-hand front seat)
XPush breather hose Aonto the battery con-
nection at the top.
XGuide holder Cover the lower side of the
battery housing and the threads for screws
B.
XScrew on holder Cwith screws B.
The battery is secured to prevent slipping.
Seat base (example: right-hand front seat)
XInsert cover Edown in front of the battery
compartment into the seat base and close it.
Latching springs Dof cover Eshould
engage audibly. Carry out the following work after connecting
the battery:
XReset the side window (Ypage 83).
XReset the electric sliding doors (Ypage 78).
Charging
GWARNING
A discharged battery can freeze at tempera-
tures below freezing point. When jump-start-
ing the vehicle or charging the battery, gases can escape from the battery. There is a risk of
an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
If the indicator/warning lamps do not light up in the instrument cluster when temperatures are
low, it is probably because the discharged bat-
tery has frozen. Should this be the case, do not
jump-start the vehicle or charge the battery. The
service life of a thawed battery may be shorter. Start-up behavior may deteriorate, in particular
at low temperatures. Have the thawed battery
checked at a qualified specialist workshop.
GWARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery.
GWARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with
plenty of clean water and seek medical atten-
tion.
!Only charge the installed battery with a bat-
tery charger that has been tested and
approved by Mercedes-Benz. This device
allows the battery to be charged when it is
262Battery
Maintenance and care

!Vehicles with a gasoline engine:avoid
repeated and lengthy starting attempts. Oth-
erwise, the catalytic converter could be dam-
aged by non-combusted fuel.
If the indicator and warning lamps in the instru-
ment cluster do not light up at low tempera-
tures, the discharged battery may have frozen.
In this case you may neither charge the battery
nor jump-start the vehicle. The service life of a
thawed battery may be shorter. Start-up behav-
ior may deteriorate, in particular at low temper-
atures. Have the thawed battery checked at a
qualified specialist workshop.
Do not use a rapid charging device to start the
vehicle. If your vehicle's battery is discharged,
the engine can be jump-started from another
vehicle or from a donor battery using jumper
cables. For this purpose, the vehicle has a jump-
starting connection point in the engine com-
partment.
When jump-starting, observe the following
points:
RThe battery is not accessible in all vehicles. If
the other vehicle's battery is not accessible,
jump-start the vehicle using a donor battery
or a jump-starting device.
RYou may only jump-start the vehicle when the
engine and exhaust system are cold.
Rdo not start the engine if the battery is frozen.
Let the battery thaw first.
Rjump-starting may only be performed from
batteries with a nominal voltage of 12 V.
Ronly use jumper cables that have a sufficient
cross-section and insulated terminal clamps.
Rif the battery is fully discharged, attach the
battery of another vehicle for a few minutes
before attempting to start. This charges the
empty battery a little.
Rmake sure that the two vehicles do not touch.
Make sure that:
Rthe jumper cables are not damaged.
Rbare parts of the terminal clamps do not come into contact with other metal parts while the
jumper cables are connected to the battery.
Rthe jumper cables cannot come into contact
with parts such as the V-belt pulley or the fan.
These parts move when the engine is started
and while it is running.
Jumper cables and further information regarding
jump starting can be obtained at any qualified
specialist workshop.
Before connecting the jumper cables
XApply the parking brake.
XShift the transmission to position P.
XSwitch off all electrical consumers, e.g. audio
equipment, blower.
XTurn the key to position 0in the ignition lock
and remove it.
XOpen the hood (Ypage 251).
Connecting the jumper cable
XPush contact protection cover :of the jump-
starting connection point backwards against
the spring force as far as it will go.
The jump-starting connection point is visible.
Terminal connecting planXRemove the cover from positive terminal =
of the donor vehicle's battery.
XConnect the positive terminal clamp of the
jumper cable to positive terminal =of the
donor vehicle's battery, and then to positive
terminal Aof the jump-starting connection
point.
XRun the donor vehicle's engine at idling
speed.
Jump-starting273
Breakdown assistance
Z

Regular wheel and tire checks
GWARNING
Damaged tires can cause tire inflation pres-
sure loss. As a result, you could lose control of
your vehicle. There is a risk of accident.
Check the tires regularly for signs of damage
and replace any damaged tires immediately.
Check the wheels and tires of your vehicle for
damage regularly, i.e. at least every two weeks,
as well as after driving off-road or on rough
roads. Damaged wheels can cause a loss of tire
pressure. Pay particular attention to damage
such as:
Rcuts in the tires
Rpunctures
Rtears in the tires
Rbulges on tires
Rdeformation or severe corrosion on wheels
Regularly check the tire tread depth and the
condition of the tread across the whole width of
the tire (
Ypage 278). If necessary, turn the
front wheels to full lock in order to inspect the
inner side of the tire surface.
All wheels must have a valve cap to protect the valve against dirt and moisture. Do not install
anything onto the valve other than the standard
valve cap or other valve caps approved for your vehicle by dealers listed on the inside of the
front cover. Do not install any other valve caps
or systems, e.g. tire pressure monitor systems.
Regularly check the pressure of all the tires,
particularly prior to long trips. Adjust the tire
pressure if ne
cessary (Ypage 280).
The service life of tires depends on various fac-
tors, including the following:
Rdriving style
Rtire pressure
Rmileage
Tire tread
GWARNING
Insufficient tire tread will reduce tire traction.
The tire is no longer able to dissipate water.
This means that on wet road surfaces, the risk
of hydroplaning increases, in particular where
speed is not adapted to suit the driving con-
ditions. There is a risk of accident.
If the tire pressure is too high or too low, tires may exhibit different levels of wear at differ-
ent locations on the tire tread. Thus, you
should regularly check the tread depth and
the condition of the tread across the entire
width of all tires.
Minimum tire tread depth for:
RSummer tires: âin (3 mm)
RM+S tires: ãin (4 mm)
For safety reasons, replace the tires before
the legally prescribed limit for the minimum
tire tread depth is reached.
Marker :shows the location where the bar
indicator (arrow) for tread wear is integrated
into the tire tread.
Tread wear indicators (TWIs) are required by
law. Six indicators are positioned over the tire
tread. They are visible once the tread depth is
approximately áin (1.6 mm). If this is the case,
the tire is so worn that it must be replaced.
Selecting, mounting and replacing
tires
ROnly mount tires and wheels of the same type
and make.
ROnly use wheels with tire sizes approved by
Mercedes-Benz.
ROnly mount tires of the correct size onto the
wheels.
RBreak in new tires at moderate speeds for the
first 65 miles (100 km).
278Operation
Wheels and tires