2018 MERCEDES-BENZ METRIS parking sensors

Beltsee Seat belts
Belt warning ......................................... 49
Blind Spot Assist
Activating ....................................... 150
Activating/deactivating (vehicle
with steering wheel buttons) ......... 187
Collision warning ........................... 150
Display message ............................ 218
Important safety notes .................. 148
Monitoring range of the sensors .... 149
Notes/function .............................. 148
Trailer towing ................................. 150
Warning display ............................. 150
Blower
see Climate control
Bluetooth
®Audio ............................... 184
Brake
Display message (vehicle without
steering wheel buttons) ................. 192
Brake Assist
see BAS (Brake Assist System)
Brake assistance
see BAS (Brake Assist System)
Brake fluid
Checking the level ......................... 257
Display message (vehicle with
steering wheel buttons) ................. 209
Display message (vehicle without
steering wheel buttons) ................. 195
Notes ............................................. 311
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Display messages (vehicle with
steering wheel buttons) ................. 212
Display messages (vehicle with-
out steering wheel buttons) ........... 198
Replacing bulbs ............................. 105
Trailer display messages (vehicle
with steering wheel buttons) ......... 212
Trailer display messages (vehicle
without steering wheel buttons) .... 198
Brake pads/linings
New ............................................... 140
Brakes
ABS .................................................. 64 Adaptive Brake Assist .................... 147
Applying the parking brake ............ 136
BAS .................................................. 65
Brake fluid (notes) ......................... 311
Checking brake fluid level .............. 257
Display message
(vehi
cle with
steering wheel buttons) ................. 206
EBD .................................................. 65
Hill start assist ............................... 125
Important safety notes .................. 139
New brake pads/linings ................ 140
Parking brake (notes) ..................... 140
Riding tips ...................................... 139
Warning lamp ................................. 223
Breakdown
Vehicle tool kit ............................... 272
Breakdown assistance
see Towing away
Buttons
On the instrument cluster .............. 173
On the steering wheel .................... 178
C
CaliforniaImportant notice for retail cus-
tomers and lessees .......................... 27
Camera
see Rear view camera
Car
see Vehicle
Car key
see SmartKey
Car wash
see Care
Care
Car wash ........................................ 266
Carpets .......................................... 271
Display ........................................... 270
Exterior lights ................................ 268
Interior ........................................... 269
Notes ............................................. 265
Paint .............................................. 267
Plastic trim .................................... 270
Power washer ................................ 266
Rear view camera .......................... 269
Roof lining ...................................... 271
Seat belt ........................................ 271
6Index

Seat cover ..................................... 270
Sensors ......................................... 268
Sliding door ................................... 269
Steering wheel ............................... 270
Trim pieces .................................... 270
Washing by hand ........................... 266
Washing the engine ....................... 267
Wheels ........................................... 268
Windows ........................................ 267
Wiper blades .................................. 268
Cargo compartment
Options .......................................... 246
Seating ............................................ 88
Cargo compartment lamp
Changing bulbs .............................. 101
Cargo compartment lighting
Switching on centrally ................... 100
Switching on locally ....................... 100
Cargo tie-down rings
Permissible tensile load ................. 314
Center console
Controls ........................................... 42
Central locking
Activating/deactivating the
acoustic locking confirmation (on-
board computer) ............................ 190
Automatic locking ............................ 74
Automatic locking (on-board com-puter) ............................................. 190
Emergency unlocking ....................... 70
Locking/unlocking (buttons) ........... 73
Locking/unlocking (SmartKey) ........ 69
Central locking system
see Central locking
Change of address .............................. 28
Change of ownership .......................... 28
Changing a bulb
Ambient lamp in the front door ...... 101
Halogen headlamps ....................... 102
Mirror lamp in the headliner .......... 101
Signal and ambient light in the tail-
gate ............................................... 102
Trunk lamp in the side trim panel .. 101
Changing bulbs
Additional turn signals ................... 104
Ambient lamp in tailgate ................ 101
Backup lamps ................................ 105
Brake lamps ................................... 105 Cargo compartment lamp .............. 101
Daytime running lamps .................. 104
High-beam headlamps ................... 104
Installing/removing a rear lamp
cluster ........................................... 105
Installing/removing
the co
ver in
the wheel arch ............................... 103
Installing/removing the tail lamp ... 105
Interior light ................................... 100
Interior lighting .............................. 100
Low-beam headlamps .................... 103
Overview of lamp types (front
bulbs) ............................................. 103
Overview of lamp types (rear
bulbs) ............................................. 104
Parking lamps ................................ 104
Rear fog lamp ................................ 105
Rear interior light in the headline r..1 01
Standing lamps (front) ................... 104
Standing lamps (rear) .................... 105
Tail lamps ...................................... 105
Trunk lamp in the headliner ........... 100
Turn signals (front) ......................... 104
Turn signals (rear) .......................... 105
see Changing light bulbs
Changing bulbs
see Replacing bulbs
Child
Restraint system .............................. 59
Child seat
Forward-facing restraint system ...... 62
LATCH-type (ISOFIX) child seat
anchors ............................................ 61
On the front-passenger seat ............ 62
Rearward-facing restraint system .... 62
Top Tether ....................................... 61
Child-proof locks
Important safety notes .................... 63
Sliding door ..................................... 63
Children
Special seat belt retractor ............... 59
Children in the vehicle
Important safety notes .................... 58
Cigarette lighter ................................ 242
Cleaning
Trailer tow hitch ............................. 269
Cleaning
see Care
Index7

On-board computer (vehicles with
steering wheel buttons)Displaying the service message ..... 260
On-board computer (vehicles with-
out steering wheel buttons)
Displaying the service message ..... 260
On-board diagnostics interface
see Diagnostics connection
Operating Instructions
Before the first journey .................... 27
Limited Warranty ............................. 27
Operating safety
Limited Warranty ............................. 27
Operating safety and vehicle
approval
Attachments and bodies .................. 32
Changing the engine power out-
put ................................................... 31
Correct use ...................................... 29
Declaration of conformity ................ 31
Equipment and conversions ............. 32
Important safety notes .................... 30
Information about body/equip-
ment mounting directives ................ 32
Notes on operating the vehicle ........ 30
Qualified specialist workshop .......... 31
Registering your vehicle ................... 32
Operating system
On-board computer (vehicle with
steering wheel buttons) ................. 178
On-board computer (vehicle with-
out steering wheel buttons) ........... 173
Operator's Manual
General notes .................................. 27
Vehicle equipment ........................... 27
Outside temperature display ........... 172
Overhead control panel ...................... 43
Overrevving range ............................. 172
Overrun cutoff ................................... 138
P
Paint code number ............................ 305
Paintwork (cleaning instructions) ... 267
Parking ............................................... 135
Important safety notes .................. 135
Parking brake ................................ 136
Rear view camera .......................... 160 see Active Parking Assist
see PARKTRONIC
Parking aid
Active Parking Assist ..................... 156
see PARKTRONIC
see Rear view camera
Parking assistance
see PARKTRONIC
Parking brake
Display message (vehicle with
steering wheel buttons) ................. 210
Display message (vehicle without
steering wheel buttons) ................. 197
Notes/function .............................. 136
Warning lamp ................................. 136
Parking brake
see Parking brake
Parking lamps
Changing bulbs .............................. 104
PARKTRONIC
Deactivating/activating ................. 155
Display messages .......................... 216
Driving system ............................... 153
Function/notes ............................. 153
Important safety notes .................. 153
Problem (malfunction) ................... 156
Range of the sensors ..................... 154
Roll-back warning .......................... 155
Trailer towing ................................. 156
Warning display ............................. 155
PASSENGER AIR BAG OFF
Indicator lamp .................................. 46
Passenger compartment air-condi-
tioning system
see Climate control
Passenger compartment heating
see Climate control
Pedestrian protection
see Hood
Pets in the vehicle ............................... 64
Plastic trim (cleaning instruc-
tions) .................................................. 270
Power washers .................................. 266
Power windows
see Side windows
Preparing for a journey
Checks in the vehicle ..................... 123
Index17

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

In such cases, Adaptive Brake Assist can:
Rintervene unnecessarily
Rnot intervene
There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. Terminate the
intervention in a non-critical driving situation.
In particular, the detection of obstacles can be
impaired in the case of:
Rdirt on the sensors or anything else covering
the sensors
Rsnow or heavy rain
Rinterference from other radar sources
Rstrong radar reflections, for example, in park-
ing garages
Ra narrow vehicle traveling in front, e.g. a
motorbike
Ra vehicle traveling in front on a different line
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may also cause Adaptive Brake Assist to inter-
vene.
If you fail to adapt your driving style, Adaptive
Brake Assist can neither reduce the risk of acci-
dent nor override the laws of physics. Adaptive
Brake Assist cannot take into account road,
weather or traffic conditions. Adaptive Brake
Assist is only an aid. You are responsible for the
distance to the vehicle in front, for vehicle
speed, braking in good time and for staying in
your lane.
Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensor checked at a qualified specialist
workshop. This also applies to collisions at slow
speeds where there is no visible damage to the
front of the vehicle.
If you change wheel size, make sure they corre- spond to the correct wheel size category
(
Ypage 279). If the category is changed without
recoding the control units in the vehicle, the
functioning of Adaptive Brake Assist may be
impaired. COLLISION PREVENTION ASSIST may
then detect a malfunction and switch itself off.
If Adaptive Brake Assist is not available due to a
malfunction in the radar sensor system, the
brake system remains available with full brake
boosting effect and BAS.
Operation
With the help of the radar sensor system, Adap-
tive Brake Assist can detect obstacles that have been in the path of your vehicle for an extended
period of time. Ada

ptive Brake Assist does not
react to stationary obstacles. If Adaptive Brake
Assist detects a risk of collision with a vehicle
traveling in front or with a stationary obstacle,
the system calculates the braking force neces-
sary to avoid this collision. If you apply the
brakes forcefully, Adaptive Brake Assist will
automatically increase the braking force to a
level suitable for the traffic conditions.
XBrake until the distance to the obstacle
increases and the risk of a collision passes.
ABS prevents the wheels from locking.
The brakes function as usual again if:
Ryou release the brake pedal
Rthere is no longer any danger of a collision
Rno obstacle is detected in front of your vehicle
Braking assistance is then ended.
Blind Spot Assist
General notes
Blind Spot Assist monitors the areas on either
side of the vehicle that are not visible to the
driver with two lateral, rear-facing radar sensors
in the bumper. It supports you from speeds of
approximately 20 mph (30 km/h). A warning
display in the exterior mirrors draws your atten-
tion to vehicles detected in the monitored area.
If you then switch on the corresponding turn
signal to change lane, you will also receive an
optical and audible collision warning.
Important safety notes
GWARNING
Blind Spot Assist does not react to:
Rvehicles overtaken too closely on the side,
placing them in the blind spot area
Rvehicles which approach with a large speed
differential and overtake your vehicle
As a result, Blind Spot Assist may not give
warnings in such situations. There is a risk of
an accident.
148Driving systems
Driving and parking

Always observe the traffic conditions care-
fully, and maintain a safe lateral distance.
Blind Spot Assist is only an aid. It may fail to
detect some vehicles and is no substitute for
attentive driving. Always ensure that there is
sufficient distance to the side for other road
users and obstacles.
In particular, the detection of obstacles can be
impaired in the case of:
Rdirt on the sensors or anything else covering
the sensors
Rfog, heavy rain or snow
Rnarrow vehicles, e.g. motorcycles or bicycles
Rvery wide lanes
Rnarrow lanes
Rvehicles not driving in the middle of their lane
Rbarriers or other road boundaries
Vehicles in the monitoring range are then not
indicated.
iUSA only:
This device has been approved by the FCC as
a "Vehicular Radar System". The radar sensor
is intended for use in an automotive radar
system only. Removal, tampering, or altering
of the device will void any warranties, and is
not permitted by the FCC. Do not tamper with,
alter, or use in any non-approved way.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
Monitoring range of the sensors
Blind Spot Assist monitors the area shown in the
diagram up to 118 in (3 m) behind and directly
next to your vehicle.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may be
indicated, especially if the vehicles are not driv-
ing in the middle of their lane. This may be the
case if the vehicles are driving on the inner side
of their lane.
Due to the nature of the system:
Rwarnings may be issued in error when driving
close to crash barriers or similar solid lane
borders.
Rwarnings may be interrupted when driving
alongside long vehicles, e.g. trucks, for a pro-
longed time.
The two sensors for Blind Spot Assist are inte-
grated into the sides of the rear bumper. Make
sure that the bumper is free of dirt, ice or slush
in the vicinity of the sensors. The radar sensors
must not be covered, for example by rear-moun- ted cycle racks or overhanging loads. Following
a severe impact or in the event of damage to the
bumper, have the function of the radar sensors
checked at a qualified specialist workshop.
Blind Spot Assist may otherwise not work prop-
erly.
Driving systems149
Driving an d parking
Z

XSelectStatus Overviewin theAssist.menu and display the attention level
(Ypage 186).
The following information is displayed:
Rthe length of the journey since the last break.
Rthe attention level determined by ATTENTION
ASSIST, displayed in a bar display in five levels
from low to high.
Rif ATTENTION ASSIST is unable to calculate
the attention level and cannot output a warn-
ing, the System
Passivemessage appears in
the display. The bar display is then dimmed.
This is the case, for example, if you are pre-
dominantly driving at a speed below 40 mph
(60 km/h) or above 125 mph (200 km/h).
Activating ATTENTION ASSIST
XActivating ATTENTION ASSIST with the on-
board computer:
Ron vehicles without steering wheel buttons
(Ypage 177)
Ron vehicles with steering wheel buttons
(Ypage 187)
For vehicles with steering wheel buttons, the
system determines the attention level of the
driver depending on the setting selected:
Standard: the sensitivity with which the sys-
tem determines the attention level is set to
normal.
Sensitive: the sensitivity is set higher. The
driver is warned earlier.
When ATTENTION ASSIST is switched on and
the vehicle engine is running:
Ron vehicles without steering wheel buttons,
the À indicator lamp in the instrument
cluster lights up
Ron vehicles with steering-wheel buttons, the
display shows the Àsymbol:
-in the status area
-in the Status Overviewof the Assist.menu (Ypage 186)
For vehicles with steering wheel buttons, if you
deactivate ATTENTION ASSIST, the system is
automatically re-activated when you start the
engine. The system sensitivity then corresponds
to the last selection activated – standard or sen-
sitive.
If you switch off ATTENTION ASSIST in a vehicle without steering wheel buttons, the system
remains switched off even after you start the engine. The status of the system after switching
on the engine always corresponds to the status
last selected.
Warning in the display
If the system detects tiredness or increasing
lapses in concentration, the warning
Atten‐
tion Assist: Take a Break!orAttent.Asst: Take Break!is shown in the display.
An additional warning tone sounds.
XIf necessary, take a break.
XConfirm the message by pressing the a
button on the steering wheel.
On long journeys, take regular breaks in good
time to allow yourself to rest. If you do not take
a break and ATTENTION ASSIST continues to
detect increasing lapses in concentration, you
will be warned again after 15 minutes at the
earliest. This will only happen if ATTEN-
TION ASSIST still detects typical indicators of
fatigue or increasing lapses in concentration.
PARKTRONIC
General notes
PARKTRONIC is an electronic parking aid. The
system is equipped with ultrasonic sensors in
the front and rear bumpers to monitor the area
around your vehicle. PARKTRONIC indicates vis-
ually and audibly the distance between your
vehicle and an object.
Your vehicle features two separate sound emit- ters with different frequencies for the warning
tones. The warning ranges in front of and behind
the vehicle are indicated by different warning
tones.
PARKTRONIC is activated automatically when
you:
Rturn the key to position 2in the ignition lock
Rrelease the parking brake and
Rmove the selector lever to position D,N or R
PARKTRONIC is deactivated at speeds above
11 mph (18 km/h). PARKTRONIC is reactivated
at speeds below 10 mph (16 km/h).
Important safety notes
PARKTRONIC is only an aid. It cannot replace
your own awareness of the immediate surround-
ings. You are responsible for safe maneuvering,
Driving systems153
Driving and parking
Z

parking and pulling away. Make sure that there
are no persons, animals or objects in the maneu-
vering area while maneuvering and parking in/
leaving parking spaces.
!Pay particular attention to obstacles above
or below the sensors when parking, such as
flower pots or trailer towbars. PARKTRONIC
does not recognize such objects when they
are in the immediate vicinity of the vehicle.
You could damage the vehicle or objects.
PARKTRONIC can suffer interference from:
Rultrasonic sources such as a truck's
compressed-air brakes, an automatic car
wash or a pneumatic drill
Rattachments to the vehicle, e.g. rear moun-
ted racks
Rnumber plates (vehicle license plates) that
are not affixed flat against the bumper
Rdirty or icy sensors
Remove a detachable trailer coupling if it is no
longer required. PARKTRONIC measures the
minimum detection range to an obstacle from
the bumper, not the ball coupling.
Range of the sensors
PARKTRONIC does not account for obstacles
that are:
Rbeneath its detection range, e.g. persons, ani-
mals or objects
Rabove its detection range, e.g. overhanging
loads, overhangs or truck loading ramps
The sensors must be free of dirt, ice or slush.
Otherwise, they cannot function correctly.
Clean the sensors regularly, taking care not to
scratch or damage them (
Ypage 268).
Front sensors
CenterApprox. 39 in
(100 cm)
CornersApprox. 24 in (60 cm)
Rear sensors
CenterApprox. 47 in
(120 cm)
CornersApprox. 31 in (80 cm)
Minimum distance
CenterApprox. 8 in (20 cm)
CornersApprox. 8 in (20 cm)
If an obstacle is within this range, the corre-
sponding segments of the warning displays light
up and you hear a warning tone. If the distance
falls below the minimum, the distance from an
obstacle may no longer be shown.
154Driving systems
Driving and parking