2020 MERCEDES-BENZ METRIS width

Switching the rear view camera on or
off
X
To activate: make sure that the key is in
position 2 in the ignition lock.
X Shift the transmission to position k.
On vehicles with a tailgate, the rear view
camera flap opens. The audio display shows
the area behind the vehicle. The rear area
shown is divided by guide lines.
In vehicles with a trailer coupling installed, the
function mode of the rear view camera can be
switched over when the trailer is reached. The
rear view camera then changes the viewing
angle and shows a locating aid for the ball cou-
pling of the trailer tow hitch to help reach the
drawbar.
X To switch function mode: select and con-
firm "Reverse parking" function : or "Cou-
pling up a trailer“ function ; using the
audio system control knob.
Information on the audio system control
knob can be found in the separate operating
instructions.
The symbol of the selected function is high-
lighted.
X To switch off: shift the transmission to
position i or h.
The dynamic guide lines are hidden and
after about 15 seconds the rear view cam-
era switches itself off.
or X Drive forwards more than about 30 ft
(10 m).
or X Drive forwards faster than 6 mph
(10 km/h
).
or X Shift the automatic transmission to position
j. In vehicles with Active Parking Assist, the rear
view camera remains switched on after the ini-
tial shift to reverse gear for the whole duration
of active parking assistance. You can find
information on active parking assistance under
"Active Parking Assist“

(Y page 159).
Messages in the multimedia system
display :
Yellow guide line at a distance of approx-
imately
13 ft (4.0 m) from the rear of the
vehicle
; White guide line without turning the steer-
ing wheel, vehicle width including the exte-
rior mirrors (static)
= Yellow guide line for the vehicle width
including the exterior mirrors, at the cur-
rent steering angle (dynamic)
? Yellow lane marking the course the tires
will take at the current steering angle
(dynamic) A
Yellow guide line at a distance of approx-
imately

3 ft (1.0 m) from the rear of the
vehicle
B Red guide line at a distance of approx-
imately

12 in (0.30 m) from the rear of the
vehicle
C Bumper
D Vehicle center axis (locating aid) Driving systems
165
Driving and parking Z

The guide lines are shown when the transmis-
sion is in position k.
The distance specifications only apply to
objects that are at ground level. PARKTRONIC warning displays for vehicles with
Active Parking Assist
E
Front warning displays
F Vehicle symbol as PARKTRONIC measure-
ment operational readiness indicator
G Rear warning displays
On vehicles with Active Parking Assist, the
PARKTRONIC is activated and operational,
(Y page
158), the camera image shows vehicle
icon F. When the PARKTRONIC warning dis-
plays go on, warning displays E and G light
up accordingly as red or yellow brackets
around vehicle icon F.
"Reverse parking" function Backing up straight into a parking space
without turning the steering wheel
:
White guide line without turning the steer-
ing wheel, vehicle width including the exte-
rior mirrors (static)
; Yellow guide line for the vehicle width
including the exterior mirrors, at the cur-
rent steering angle (dynamic) =
Yellow guide line at a distance of approx-
imately

3 ft (1.0 m) from the rear of the
vehicle
? Red guide line at a distance of approx-
imately
12 in (0.30 m) from the rear of the
vehicle
X Make sure that the rear view camera is
switched on (Y page
165).
The lane and the guide lines are shown.
X With the help of white guide line :, check
whether the vehicle will fit into the parking
space.
X Using white guide line : as a guide, care-
fully reverse until you reach the end posi-
tion.
Red guide line ? is then at the end of the
parking space. The vehicle is almost parallel
in the parking space.
Backing up into a perpendicular parking
space with the steering wheel at an
angle :
Parking space marking
; Yellow guide line for the vehicle width
including the exterior mirrors, at the cur-
rent steering angle (dynamic)
X After driving past the parking space, stop
the vehicle, paying attention to road and
traffic conditions.
X Make sure that the rear view camera is
switched on (Y page

165).
The lane and the guide lines are shown.
X While the vehicle is at a standstill, turn the
steering wheel in the direction of the park-
ing space until yellow guide line ; reaches
parking space marking :.
X Maintain the steering angle and reverse
carefully.166
Driving systems
Driving and parking

;
Yellow guide line for the vehicle width
including the exterior mirrors, at the cur-
rent steering angle (dynamic)
X Stop the vehicle when it is almost exactly in
front of the parking space.
The white lane should be as close to parallel
with the parking space marking as possible. =
White guide line at current steering angle
: Parking space marking
X Turn the steering wheel to the center posi-
tion while the vehicle is stationary. ?
End of parking space
A Red guide line at a distance of approx-
imately
12 in (0.30 m) from the rear of the
vehicle
X Back up carefully until you have reached the
end position.
Red guide line A is then aligned with the
marking at the end of parking space ?. The vehicle is almost parallel in the parking
space.
"Coupling up a trailer" function :
Trailer drawbar
; Locating aid – vehicle center point on the
yellow guide line at a distance of approx-
imately

3 ft (1.0 m) from the rear of the
vehicle
This function is only available on vehicles with
a trailer tow hitch attached.
X Before coupling up the trailer, set the height
of trailer drawbar : so that it is slightly
higher than the ball coupling.
X Position the vehicle centrally in front of
trailer drawbar :. :
Trailer drawbar
; Trailer drawbar locating aid
= "Coupling up a trailer" function selected
? Ball coupling
A Red guide line at a distance of approx-
imately
12 in (0.30 m) from the ball cou-
pling
X Select and confirm "Coupling up a trailer"
function = with the audio system control
knob. Driving systems
167
Driving and parking Z

not depress the brake pedal constantly, but
periodically.
Observe the notes on ESP
®
trailer stabilization
( Y page
69).
Driving tips If the trailer begins to swing from side to side:
X Do not accelerate.
X Do not counter-steer.
X Brake if necessary.
i You can reduce the risk of the trailer
swinging and rocking by retrofitting anti-roll
bars or trailer stability programs. Further
information is available at your authorized
Mercedes-Benz Van Dealer.
R Maintain a greater distance than you would
when driving without towing a trailer.
R Avoid sudden braking. Apply the brakes gen-
tly at first to allow the trailer brake to over-
run. Then, increase the brake force quickly.
R The figures for the gradient climbing capa-
bilities from a standstill refer to sea level.
When driving in mountainous areas, note
that the power output of the engine, and
with it its gradient climbing capability,
decrease with increasing altitude. Coupling up a trailer
Trailer coupled ready for use X
Make sure that the selector lever of the
automatic transmission is in position j.
X On vehicles with an automatic transmission,
ensure that the transmission is in position
j.
X Engage the vehicle's parking brake.
X Close all doors.
X Position the trailer horizontally behind your
vehicle.
X Couple the trailer.
X Establish all electrical and other connec-
tions to the trailer. When doing so, hook the
breakaway cable of the trailer into the eye-
let on the ball coupling.
X Remove the objects that are preventing the
trailer from rolling, e.g. wheel chocks.
X Release the trailer parking brake.
Observe the maximum permissible trailer
dimensions (width and length).
Most federal states and all Canadian provinces
require by law: R Safety chains between the towing vehicle
and the trailer. The chains should be cross-
wound under the trailer drawbar. They must
be fastened to the vehicle's trailer coupling,
not to the bumper or the axle.
Leave enough slack in the chains. This
allows you to drive round tight corners.
R A separate brake system for certain types of
trailer.
R A safety shut-off for braked trailers. Find out
the specific requirements according to the
applicable laws.
If the trailer becomes detached from the
towing vehicle, the safety shut-off applies
the trailer brakes. Towing a trailer
There are numerous legal requirements con-
cerning the towing of a trailer, e.g. speed
restrictions. Many states require a separate
functional braking system for your trailer once
a certain weight limit is exceeded. For reasons
of safety, it is recommended that all trailers
use a separate functional braking system.
Make sure your vehicle/trailer combination
complies with local laws. This not only means
where you live, but also anywhere you are driv-
ing to. Information on this can be obtained
from the police and local authorities. 170
Towing a trailer
Driving and parking

Regular wheel and tire checks
G
WARNING
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 dam-
age and replace any damaged tires immedi-
ately.
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:
R cuts in the tires
R punctures
R tears in the tires
R bulges on tires
R deformation or severe corrosion on wheels
Regularly check the tire tread depth and the
condition of the tire tread across the whole
width of all the tires
(Y page 279). If neces-
sary, 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 necessary (Y page 282).
The service life of tires depends on various
factors, including the following:
R Driving style
R Tire pressure
R Mileage Tire tread
G
WARNING
If there is insufficient tire tread, the tire trac-
tion decreases. The tire tread is no longer
able to dissipate water. This increases the risk of hydroplaning when the road surface
is wet, particularly when the vehicle's speed
is not adapted to the road conditions. There
is a risk of an accident.
When the tire pressure is too high or too
low, tires may wear differently at different
points on the tire tread. Therefore, regularly
check the tire tread depth and the condition
of the tread across the whole width of all
tires.
Minimum tire tread depth on:
R Summer tires: â in (3 mm

)
R M+S tires: ã in (4 mm)
For safety reasons, have the tires replaced
before they reach the legally prescribed min-
imum tire tread depth. 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 tire tread
depth is approximately á in (1.6 mm

). If this
is the case, the tire is so worn that it must be
replaced. Selecting, mounting and replacing
tires
R Only mount tires and wheels of the same
type and make.
R Only use wheels with tire sizes approved by
Mercedes-Benz.
R Only mount tires of the correct size onto the
wheels. Operation
279Wheels and tires Z

The markings described above are on the tire
in addition to the tire name (sales designation)
and the manufacturer's name.
i Tire data is vehicle-specific and may devi-
ate from the data in the example.
Tire size designation, load bearing
index and speed index G
WARNING
Exceeding the stated tire load-bearing capa-
city and the approved maximum speed
could lead to tire damage or the tire burst-
ing. There is a risk of accident.
Therefore, only use tire types and sizes
approved for your vehicle model. Observe
the tire load rating and speed rating
required for your vehicle. :
Tire width
; Nominal aspect ration in %
= Tire code
? Rim diameter
A Load bearing index
B Speed index
Tire width: tire width : shows the nominal
tire width in millimeters.
Aspect ratio: aspect ratio ; is the size ratio
between the tire height and tire width and is
shown in percent. The aspect ratio is calcula-
ted by dividing the tire width by the tire height.
Tire code: tire code = specifies the tire type.
"R" represents radial tires. "D" represents
diagonal tires, "B" represents diagonal radial
tires.
Rim diameter: rim diameter ? is the diame-
ter of the bead seat, not the diameter of the rim flange. The rim diameter is specified in
inches (in).
Load-bearing index: load-bearing index
A is
a numerical code that specifies the maximum
load-bearing capacity of a tire.
Do not overload the tires by exceeding the
specified load limit. The maximum permissible
load can be found on the vehicle's Tire and
Loading Information placard on the B-pillar
on
the driver's side (Y page 289).
Example:
The load-bearing index 101 indicates a maxi-
mum load of 1819 lb (825 kg) for the tire. If
two load-bearing indices are specified, the first
number specifies the load-bearing capacity for
single tires, the second the load-bearing capa-
city for twin tires. For further information on
the maximum tire load in kilograms and
pounds, see (Y page 294). For further information on the load-bearing
index, see "Load index" (Y page 294).
Speed rating: speed rating B specifies the
approved maximum speed of the tire.
Regardless of the speed index always observe
the speed limits. Drive carefully and adapt
your driving style to the traffic conditions.
i Tire data is vehicle-specific and may devi-
ate from the data in the example. Index Speed rating
Q up to 100 mph (160 km/h)
R up to 106 mph (170 km/h)
S up to 112 mph (180 km/h)
T up to 118 mph (190 km/h)
H up to 130 mph (210 km/h)
V up to 149 mph (240 km/h)
W up to 168 mph (270 km/h)
Y up to 186 mph (300 km/h)
i
Not all tires that have the
M+S identifica-
tion offer the driving characteristics of win-
ter tires. In addition to the M+S marking,
winter tires also have the i snowflake
symbol on the tire wall. Tires with this mark-
ing fulfill the requirements of the Rubber
Manufacturers Association (RMA) and the
Rubber Association of Canada (RAC) regard- What you should know about wheels and tires
293
Wheels and tires Z

Wheel rim
The part of the wheel on which the tire is
mounted.
GAWR (Gross Axle Weight Rating) GAWR is the maximum gross axle weight rat-
ing. The actual load on an axle must never
exceed the gross axle weight rating. You can
find the maximum gross axle weight rating on
the
B-pillar on the driver's side ( Y page 304).
Speed index The speed index is part of the tire identifica-
tion. It specifies the speed range for which the
tire is approved.
GTW (Gross Trailer Weight) GTW is the total of weight of a trailer and the
weight of the load, accessories etc. on the
trailer.
GVW (Gross Vehicle Weight)
The gross vehicle weight includes the weight
of the vehicle including fuel, tools, spare
wheel, accessories installed, occupants, lug-
gage and the drawbar noseweight if applica-
ble. The gross vehicle weight must never
exceed the permissible gross weight (GVWR)
specified on the B-pillar on the driver's side
(Y page 304).
GVWR (Gross Vehicle Weight Rating) The GVWR is the maximum permitted gross
weight of the fully laden vehicle (weight of the
vehicle including all accessories, occupants,
fuel, luggage and the drawbar noseweight if
applicable). The permissible gross weight is
specified on the vehicle identification plate on
the B-pillar on the driver's side (Y page 304).
Maximum weight of the laden vehicle
The maximum weight is the sum of:
R the curb weight of the vehicle
R the weight of the accessories
R the load limit
R the weight of the factory installed optional
equipment
Kilopascal (kPa) Metric unit for tire pressure. 6.9 kPa are the
equivalent of 1 psi. Another tire pressure unit
is bar. 100 kilopascals (kPa) are the equivalent
of 1 bar. Load index
In addition to the load bearing index, a load
index can be stamped onto the sidewall of the
tire. It specifies the load-bearing capacity of
the tire more precisely.
Curb weight The weight of a vehicle with standard equip-
ment including the maximum filling capacity of
fuel, oil, and coolant. It also includes the air-
conditioning system and optional equipment if
these are installed on the vehicle, but does not
include passengers or luggage.
Maximum tire load
The maximum tire load in kilograms or pounds
is the maximum weight for which a tire is
approved.
Maximum permissible tire pressure
Maximum permissible tire pressure for one
tire.
Maximum load on one tire
Maximum load on one tire. This is calculated
by dividing the maximum axle load of one axle
by two.
PSI (Pounds per square inch)
Standard unit of measurement for tire pres-
sure.
Aspect ratioRelationship between tire height and width in
percent.
Tire pressure
Pressure inside the tire applying an outward
force to every square inch of the tire's surface.
Tire pressure is specified in pounds per square
inch (psi), in kilopascal (kPa) or in bar. Tire
pressure should only be corrected when the
tires are cold.
Cold tire pressure The tires are cold:
R if the vehicle has been parked for at least
three hours without direct sunlight on the
tires, and
R if the vehicle has not been driven further
than
1 mile (1.6 km)296
What you should know about wheels and tires
Wheels and tires

X
Turn the jack back to its out-of-use position.
X Stow the jack and the rest of the tire-
change tool kit in the vehicle again.
X Wheel with hub cap: position the opening
for the tire valve in the hub cap over the tire
valve.
X Push the edge of the hub cap with both
hands against the wheel until it clicks into
place. Make sure the hub cap retaining
catches engage on the steel wheel.
X If included in the vehicle equipment, secure
the faulty wheel in the spare wheel bracket
(Y page
303). Otherwise, transport the
faulty wheel in the cargo compartment.
X Check the tire pressure of the newly moun-
ted wheel and adjust it if necessary.
Observe the recommended tire pressure
( Y page

282).
Vehicles with the tire pressure monitor sys-
tem: all mounted wheels must be equipped
with functioning sensors.
X Retighten the wheel bolts or wheel nuts to
the specified tightening torque after the
vehicle has been driven for

30 miles
(50 km).
When using a wheel/spare wheel with a new
or newly painted wheel rim, have the wheel
bolts/nuts retightened again after approx-
imately

600 to 3,000 miles (1,000 to
5,000 km). Observe the specified tightening
torque. Wheel and tire combinations
General notes
! Retreaded tires are neither tested nor rec-
ommended by Mercedes-Benz, since previ-
ous damage cannot always be detected on
retreaded tires. As a result, Mercedes-Benz
cannot guarantee vehicle safety if retreaded
tires are mounted. Do not mount used tires
if you have no information about their previ-
ous usage.
! For safety reasons, Mercedes-Benz recom-
mends that you only use tires, wheels and accessories which have been approved by
Mercedes-Benz specifically for your vehicle.
These tires have been specially adapted for
use with the driving safety systems, such as
ABS or ESP
®
.
Only use tires, wheels or accessories tested
and approved by Mercedes-Benz. Certain
characteristics, e.g. handling, vehicle noise
emissions or fuel consumption, may other-
wise be adversely affected. In addition,
when driving with a load, tire dimension var-
iations could cause the tires to come into
contact with the bodywork and axle compo-
nents. This could result in damage to the
tires or the vehicle.
Mercedes-Benz accepts no liability for dam-
age resulting from the use of tires, wheels
or accessories other than those tested and
approved.
Further information on wheels, tires and
approved combinations can be obtained
from a qualified specialist workshop.
! Large wheels: the lower the section width
for a certain wheel size, the lower the ride
comfort is on poor road surfaces. Roll com-
fort and suspension comfort are reduced
and the risk of damage to the wheels and
tires as a result of driving over obstacles
increases.
You will find a table with the recommended
tire pressures for various vehicle loads on the
inside of your vehicle's fuel filler flap or under
"Tire pressure tables"

(Y page 289). You can
find further information under "Tire pressure"
( Y page 282).
Check tire pressures regularly and only when
the tires are cold.
Notes on the vehicle equipment – always
equip the vehicle:
R with tires of the same size across an axle
(left/right)
R with the same type of tires on all wheels at
a given time (summer tires, winter tires)
i Not all wheel/tire combinations can be
installed at the factory in all countries. Wheel and tire combinations
301
Wheels and tires Z