Because of this, it is impossible to state a
mileage that will be valid under all circum-
stances. An aggressive driving style will lead
to high wear.
Tyre grip
G
Risk of accident
While the vehicle can be fully controlled at a
certain speed on dry roads, you must reduce
your speed on wet or icy roads to achieve the
same road safety. Otherwise, you could cause
an accident.
Pay particular attention to the road conditions
at temperatures around freezing point.
If ice has formed on the road surface (e.g.
from fog), a thin film of water rapidly forms on
the ice when you brake, considerably reduc-
ing tyre grip. Drive with particular care in such
weather conditions. Driving on wet roads
If water has accumulated to a certain depth
on the road surface, there is a danger of aqua-
planing occurring, even if:
R you drive at low speeds
R the tyres have adequate tread depth
For this reason, do not drive in tyre ruts, and
brake carefully. Driving on flooded roads
If you have to drive on stretches of road on
which water has collected, please bear in
mind that:
R the maximum permitted still water depth is
25 cm.
R you should drive no faster than at walking
pace.
! Bear in mind that vehicles travelling in
front or in the opposite direction create waves. This may cause the maximum per-
missible water depth to be exceeded.
Failure to observe these notes may result
in damage to the engine, electrical systems
and transmission. Driving abroad
Points to remember
An extensive Mercedes-Benz Service network
is also available in other countries. The
Service Hotline's current telephone numbers
for use when you are abroad are to be found
in the "Service24h" chapter of the Service
Booklet.
Only low-octane fuel is available in certain
countries.
You can find further information about fuel
grades on (Y page 216). Symmetrical dipped beam
If your journey takes you to countries where
vehicles are driven on the opposite side of the
road to the country in which the vehicle is
registered, your headlamps must be switched
to symmetrical dipped beam. This prevents
oncoming traffic from being dazzled.
Have the headlamps converted as close as
possible to the border before driving in these
countries. When using symmetrical lights, the
edge of the carriageway is not illuminated as
widely and as far ahead as normal. Driving abroad
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Converting dipped-beam headlamps on
vehicles with halogen headlamps :
Protective cap
; Switchover lever
X Turn protective cap :anti-clockwise and
remove it.
X Push switchover lever ;down.
X Insert protective cap :and turn it clock-
wise.
When you are driving back on the same side
of the road as the country where the vehicle
is registered, have the headlamps changed
back to asymmetrical dipped beam as soon
as possible after crossing the border. Trailer towing
Folding out the ball coupling
Before you can tow a trailer with your vehicle,
you must fold out the ball coupling.
The release wheel is located behind the left-
hand side trim panel in the boot/luggage
compartment. G
Risk of accident
Make sure that the ball coupling is engaged,
either in its folded-out or folded-in position,
and that the indicator lamp is off.
Do not turn the release wheel when a trailer
is coupled up. Otherwise, the trailer might
detach. Saloon
Estate
X
To open the cover (saloon): turn han-
dle :anti-clockwise and fold down
cover ;.
X To open the cover (estate): pull han-
dle :in the direction of the arrow and fold
down cover ;. 234
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X
Grasp release wheel ;with your hand
such that the thumb is in the thumb rest
and turn it anti-clockwise.
The ball coupling disengages and folds out
from under the rear bumper. Indicator
lamp :flashes. X
Pull the ball coupling in the direction of the
arrow until it engages in a vertical position.
Indicator lamp :goes out.
The multi-function display shows the
Trailer hitch Check lock mech. mes-
sage until the ball coupling is engaged.
X Remove the protective cap from the ball
coupling and store it in a safe place.
X Make sure that the ball of the ball coupling
is clean and that, depending on the trailer
specification, it is greased or dry (without
grease) when used.
The power socket is integrated in the ball
coupling. Notes on towing a trailer
G
Risk of accident
When reversing the vehicle towards the
trailer, make sure there is nobody between
the trailer and the vehicle.
Couple and uncouple the trailer carefully. If
you do not couple the trailer to the towing
vehicle correctly, the trailer could become
detached. Make sure that the following values are not
exceeded:
R
the permissible trailer drawbar noseweight
R the permissible trailer load
R the permissible rear axle load of the towing
vehicle
R the maximum permissible gross vehicle
weight of both the towing vehicle and the
trailer
You will find the applicable permissible val-
ues, which must not be exceeded, in the vehi-
cle documents.
You will find the values approved by the man-
ufacturer on the vehicle identification plates
and those for the towing vehicle in the "Tech-
nical data" section.
i When towing a trailer, set the tyre pres-
sure on the rear axle of the towing vehicle
for a maximum load; see the tyre pressure
table in the fuel filler flap.
You will find installation dimensions and loads
in the "Technical data" section
(Y page 356).
The maximum drawbar load of the trailer
drawbar on the ball coupling is 84 kg. How-
ever, the actual noseweight must not exceed
the value given on the trailer coupling or
trailer identification plates. The lowest weight
applies.
! Use a noseweight as close as possible to
the maximum permissible noseweight. Do
not use a noseweight of less than 50 kg,
otherwise the trailer may come loose.
Bear in mind that the payload and the rear
axle load are reduced by the actual nose-
weight.
Please note that when towing a trailer, PARK-
TRONIC* ( Ypage 159), parking guid-
ance* (Y page 162) and Blind Spot
Assist* (Y page 261) are only available with
limitations, or not at all. Trailer towing
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i
On vehicles without level control, the
height of the ball coupling will alter accord-
ing to the load placed on the vehicle. If nec-
essary, use a trailer with a height-adjusta-
ble drawbar.
Coupling up a trailer G
Risk of injury
Do not disconnect a trailer with an engaged
overrun brake. Otherwise, your hand could
become trapped between the bumper and
trailer drawbar.
! Do not disconnect a trailer with an
engaged overrun brake. Otherwise, your
vehicle could be damaged by the rebound-
ing of the overrun brake.
X Position the trailer level behind the vehicle.
X Couple up the trailer.
X Establish the electrical connection
between the vehicle and the trailer.
Driving tips G
Risk of accident
If the Check trailer hitch locking
mechanism message appears in the multi-
function display while the vehicle is in motion,
pull over immediately and check whether the
ball coupling is correctly engaged.
i Observe the notes on ESP ®
trailer stabi-
lisation (Y page 60).
In Germany, the maximum permissible speed
for vehicle/trailer combinations depends on
the type of trailer and is either 80 km/h or
100 km/h. Before beginning the journey,
check the trailer's documents to see what the
maximum permitted speed is. G
Risk of accident
Always observe the maximum speed permit-
ted in Germany for vehicle/trailer combina-
tions, even in countries where higher speeds are permitted. This lowers the risk of an acci-
dent.
When towing a trailer, your vehicle's handling
characteristics will be different in comparison
to when driving without a trailer.
The vehicle/trailer combination:
R is heavier
R is restricted in its acceleration and gradi-
ent-climbing capability
R has an increased braking distance
R is affected more by strong crosswinds
R demands more sensitive steering
R consumes more fuel
On long and steep downhill gradients you
must select a lower gear in good time, or on
vehicles with automatic transmission*, select
shift range 1,2or 3.
i This also applies if you have activated
cruise control, Speedtronic or Distronic
Plus*.
This will use the braking effect of the engine,
so less braking will be required to maintain
the speed. This relieves the load on the brake
system and prevents the brakes from over-
heating and wearing too quickly. If you need
additional braking, depress the brake pedal
repeatedly rather than continuously. G
Risk of accident
Never depress the brake pedal continuously
while the vehicle is in motion, e.g. never cause
the brakes to rub by applying constant slight
pedal pressure. This causes the brake system
to overheat, increases the braking distance
and can lead to the brakes failing completely. 236
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Driving tips
R
Maintain a greater distance from the vehi-
cle in front than when driving without a
trailer.
R Avoid braking abruptly. If possible, brake
gently at first to allow the trailer to run on.
Then, increase the braking force rapidly.
R The values given for gradient-climbing
capabilities from a standstill refer to sea
level. When driving in mountainous areas,
note that the power output of the engine,
and consequently the vehicle's gradient-
climbing capability, decrease with increas-
ing altitude.
If the trailer swings from side to side:
X Do not accelerate.
X Do not counter-steer.
X Brake if necessary. G
Risk of accident
On no account should you attempt to draw the
vehicle/trailer combination out by increasing
speed. Folding in the ball coupling
i Fold the ball coupling back in if you are
not using the trailer tow hitch. G
Risk of injury
Make sure that no persons or animals are in
the pivoting range of the ball coupling. Other-
wise, they could be injured.
X Place the protective cap on the ball cou-
pling.
The release wheel is located behind the left-
hand side trim panel in the boot/luggage
compartment. Saloon
Estate
X
To open the cover (saloon): turn han-
dle :anti-clockwise and fold down
cover ;.
X To open the cover (estate): pull han-
dle :in the direction of the arrow and fold
down cover ;. Trailer towing
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X
Grasp release wheel ;with your hand
such that the thumb is in the thumb rest
and turn it anti-clockwise.
The ball coupling unlocks and lowers. Indi-
cator lamp :flashes. X
Press the ball coupling in the direction of
the arrow until it engages behind the
bumper.
Indicator lamp :goes out and the mes-
sage in the multi-function display disap-
pears. Trailer power supply
When it leaves the factory, your vehicle's
trailer socket outlet is equipped with a per-
manent power supply and a power supply that
is switched on via the ignition lock.
The permanent power supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket
pin 10.
! You can connect consumers with a power
rating of up to 240 W to the permanent
power supply and up to 180 W to the power
supply that is switched on via the ignition
lock.
You must not charge a trailer battery using
the power supply.
The trailer's permanent power supply is
switched off in the event of low vehicle supply
voltage and after six hours at the latest. You can obtain further information about
installing the trailer electrics from a qualified
specialist workshop, e.g. a Mercedes-Benz
Service Centre.
X
To switch the connected power supply
on or off: turn the key in the ignition lock
to position 2or 0, respectively. Bulb failure indicator for LEDs
i If LED lamps are fitted in the trailer, an
error message may appear in the multi-
function display – even if there is no fault –
if the corresponding LED chain's current
draw drops below 50 milliamperes (mA).
To ensure reliable operation of the bulb failure
indicator, a minimum current of 50 mA must
be guaranteed by the manufacturer of each
LED chain in the trailer lighting. Trailer with 7-pin connector
If your trailer has a 7-pin connector, you can
connect it to the 13-pin socket on the ball
coupling using an adapter or, if necessary, an
adapter cable. Both of these can be obtained
at a qualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre.
Fitting the adapter 238
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X
Open the socket cover.
X Insert connector with lug :into
groove ;on the socket and turn the con-
nector clockwise to the stop.
X Make the cover engage.
X If you are using an adapter cable, secure
the cable to the trailer with cable ties.
! Make sure that there is sufficient cable
play so that the cable cannot become
detached when cornering. Service
ASSYST PLUS service interval display
The ASSYST PLUS service interval display
informs you of the next service due date.
The service due date is shown in the multi-
function display, for example:
Next service A in .. days
Next service A in ... km
Service A due
The letter indicates which service is due. A
stands for a minor service and Bfor a major
service. A number or another letter may be
displayed after the letter. This figure indicates
any necessary additional maintenance work
to be performed. If you report this displayed
information to a qualified specialist work-
shop, for example a Mercedes-Benz Service
Centre, they can inform you of the costs the
service will incur.
The ASSYST PLUS service interval display
does not take into account any periods of
time during which the battery is disconnec-
ted. Maintaining the time-dependent service
schedule:
X
Note down the service due date displayed
before disconnecting the battery.
or
X Subtract the battery disconnection periods
from the service date shown on the display
after reconnecting the battery.
Hiding a service message X
Press %ora on the steering wheel.
Service overdue A display message is shown in the multi-func-
tion display, for example:
Service A overdue by ... days
Service A overdue by .. km
i
If you fail to have the service performed
by the specified date, you may be violating
applicable laws. Your warranty may be inva-
lidated and goodwill settlements may be
refused.
Calling up a service due date X
Switch on the ignition.
X Press =or; to select the Service
menu on the steering wheel.
X Press 9or: to select the ASSYST
PLUS submenu and press ato confirm.
The multi-function display shows the
service due date. AdBlue
®
service indicator
i For Blue-TEC vehicles only.
The BlueTEC exhaust gas aftertreatment
must be operated with a reducing agent
(AdBlue ®
) in order for it to function correctly.
AdBlue ®
is topped up as part of maintenance
work. Under normal operating conditions, a
full tank of AdBlue ®
should last until the next
service due date. Service
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Depending on how and where the vehicle is
used, there may be an increase in the
AdBlue ®
consumption, resulting in the next
service due date being brought forward.
The following messages tell you about the
AdBlue ®
supply:
Refill AdBlue at workshop See Own‐
er's Manual
Refill AdBlue at workshop No start
in ... km
Before taking a trip with your vehicle outside
Europe, have the AdBlue ®
supply checked
and, if necessary, topped up at a qualified
specialist workshop. Before using your vehi-
cle for an extended period in countries out-
side Europe, contact a qualified specialist
workshop.
! Have the AdBlue ®
tank topped up at a
qualified specialist workshop only. The
vehicle may otherwise be damaged or
soiled.
Damage or consequential damage is not
covered by the Mercedes-Benz implied
warranty.
You can obtain general information about
BlueTEC exhaust gas aftertreatment and
AdBlue ®
from any Mercedes-Benz Service
Centre.
Further information about AdBlue ®
(Y page 335). Care
Care and cleaning products
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use only care products and cleaning agents
recommended and approved by Mercedes-
Benz. !
For cleaning your vehicle, do not use any
of the following:
R dry, rough or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
and do not scrub.
Do not touch the surfaces and protective
films with hard objects, e.g. rings or ice
scrapers. You could otherwise scratch or
damage the surfaces and protective film. H
Environmental note
Dispose of empty packaging, cleaning cloths
and polishing wads in an environmentally
responsible manner.
! Do not park the vehicle for a long period
of time directly after cleaning, especially if
the wheels have just been cleaned with a
wheel cleaner. Wheel cleaners could cause
rapid corrosion of the brake discs and
brake pads/linings. After cleaning, park
the vehicle when it is at normal operating
temperature. Exterior care
Automatic car wash G
Risk of accident
The vehicle is braked when the HOLD function
or Distronic Plus* is activated. Therefore,
deactivate the HOLD function and Distronic
Plus before the vehicle is washed in an auto-
matic car wash. G
Risk of accident
Braking efficiency is reduced after washing
the vehicle. This could cause an accident. For
this reason, until the brakes are dry, drive with
particular care after the vehicle is washed.
You can wash the vehicle in an automatic car
wash from the beginning. 240
CareOperation
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