Problems with cooling with air
dehumidification
............................ 105
Problem with the rear window
defroster ........................................ 107
Refrigerant ..................................... 280
Setting the air distribution .............105
Setting the airflow .........................106
Setting the air vents ......................108
Setting the temperature ................105
Switching air-recirculation mode
on/off ............................................ 107
Switching on/off ........................... 104
Switching the MONO function on/
off .................................................. 106
Switching the rear window
defroster on/off ............................ 107
Cockpit
Overview .......................................... 26
see Instrument cluster
COMAND
see separate operating instructions
Combination switch ............................94
Consumption statistics (on-board
computer) .......................................... 148
Convenience closing feature ..............75
Convenience opening feature ............75
see Opening/closing the side
windows (all)
Coolant
Display message ............................ 173
Coolant (engine)
Checking the level .........................216
Important safety notes ..................280
Temperature (on-board computer) .157
Cooling
see Climate control
Crash-responsive emergency
lighting ................................................. 96
Cruise control Cruise control lever .......................135
Deactivating ................................... 136
Display message ............................ 176
Driving system ............................... 134
Function/notes ............................. 134
Important safety notes ..................134
LIM indicator lamp .........................135Setting a speed
.............................. 135
Storing and maintaining current
speed ............................................ .135
Cup holder
Center console .............................. 198
Important safety notes ..................198
Cup holders
see Cup holder
Curb weight
see Technical data
Customer Assistance Center (CAC) ...22
Customer Relations Department .......22 D
Dashboard see Cockpit
see Instrument cluster
Data
see Technical data
Daytime running lamps
Display message ............................ 171
Switching on/off (on-board
computer) ...................................... 154
Switching on/off (switch) ................92
Dealerships
see Qualified specialist workshop
Declarations of conformity ................. 21
Delayed switch-off Exterior lighting (on-board
computer) ...................................... 155
Interior lighting .............................. 155
Diagnostics connection ......................21
Digital speedometer .........................149
Display (cleaning instructions) ........225
Display messages ASSYST PLUS service interval
displa y........................................... 217
Calling up (on-board computer) .....160
Driving systems ............................. 176
Engine ............................................ 172
Hiding (on-board computer) ...........160
Lights ............................................ .169
Safety systems .............................. 166
Service interval displa y.................. 217
SmartKey ....................................... 181
Tires ............................................... 177
Vehicle .......................................... .180 6
IndexProCarManuals.com
Problem Possible causes/consequences and
M
MSolutions The coolant
temperature gauge
shows a value above
248 ‡ (120 †). The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X
Stop as soon as possible and allow the engine and the coolant
to cool down.
X Check the coolant level (Y page 216). Observe the warning
notes as you do so and add coolant if necessary. If the coolant level is correct, the engine radiator fan may be faulty.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X
At coolant temperatures under 248 ‡ (120 †), drive on to the
nearest qualified specialist workshop, e.g. to an authorized
Mercedes-Benz Center.
X Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and start/stop traffic. AMG SPEEDSHIFT DCT 7-speed sports
transmission Important safety notes
G
WARNING
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.
Observe the "Important safety notes" section
on activating/deactivating ESP ®
(Y page 56). E-SELECT selector lever
Overview of transmission positions j
Park position with parking lock
k Reverse gear
i Neutral
h Drive
! If the engine speed is too high or if the
vehicle is rolling, do not shift the
transmission directly from Dto R, from R
to Dor directly to P.
Do not open the driver's door while the
vehicle is in motion. At low speeds in
transmission position Dor R, park position
P is otherwise engaged automatically. AMG SPEEDSHIFT DCT 7-speed sports transmission
117Driving and parking Z
ProCarManuals.com
Display messages Possible causes/consequences and
M
MSolutions # The battery is not being charged.
A warning tone also sounds.
Possible causes are:
R
a defective alternator
R a torn poly-V-belt
R a malfunction in the electronics
X Pull over and stop the vehicle safely paying attention to road
and traffic conditions and switch off the engine.
X Open the hood.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! Do not continue driving. The engine could otherwise overheat.
X Consult a qualified specialist workshop.
If the poly-V-belt is not damaged:
X Visit a qualified specialist workshop. +
Check Coolant Check Coolant
Level See Level See
Operator's Manual Operator's Manual The coolant level is too low.
X
Add coolant, observing the warning notes before doing so
(Y page 216).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop.
! The coolant level is too low. Avoid making long journeys with
too little coolant in the cooling system. The engine will otherwise
be damaged.
The display messages and the corresponding symbol that
indicate that the coolant level is too low must not be ignored. 4
Engine Oil Level Engine Oil Level
low Stop Vehicle low Stop Vehicle
Turn Engine Off Turn Engine Off There is insufficient oil in the engine. There is a risk of engine
damage.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Top up and check the engine oil level (Y page 215).174
Displays and operationOn-board compu
ter and displays
ProCarManuals.com
Problem Possible causes/consequences and
M
MSolutions ç
The red engine
oil temperature
warning lamp
comes on while
the engine is
running. The
engine oil
temperature is
not displayed. The engine control unit data transfer is malfunctioning.
X
Visit a qualified specialist workshop. 7
The yellow
reserve fuel
warning lamp
lights up while
the engine is
running. The fuel level has dropped into the reserve range.
X
Refuel at the nearest gas station. 7
The yellow
reserve fuel
warning lamp
flashes while the
engine is
running. The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X
Check that the fuel filler cap is correctly closed.
X If the fuel filler cap is not correctly closed: close the fuel filler
cap.
X If the fuel filler cap is closed: visit a qualified specialist
workshop. G
WARNING
Driving when your engine is overheated can cause some fluids which may have leaked into the
engine compartment to catch fire. You could be seriously burned.
Steam from an overheated engine can cause serious burns which can occur just by opening the
engine hood. Stay away from the engine if you see or hear steam coming from it.
Stop the vehicle in a safe location away from other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until the engine has cooled down.
! If the coolant temperature exceeds 248 ‡(120 †) do not continue driving. The engine will
otherwise be damaged. 192
Displays and operationOn-board computer and displays
ProCarManuals.com
X
Unscrew oil filler cap :again and read the
dipstick.
If the level is between MIN mark =and
MAX mark ;, the oil level is correct.
X If the oil level has dropped to MIN mark
= or below, add 1.1 US qt (1.0 liter) of
engine oil.
Adding engine oil G
WARNING
If engine oil comes into contact with hot
components in the engine compartment, it
may ignite. There is a risk of fire and injury.
Make sure that engine oil is not spilled next
to the filler neck. Let the engine cool down
and thoroughly clean the engine oil off the
components before starting the engine. H
Environmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful
to the environment.
! Only use engine oils and oil filters that
have been approved for vehicles with a
service system. You can obtain a list of the
engine oils and oil filters tested and
approved in accordance with the
Mercedes-Benz Specifications for Service
Products at any Mercedes-Benz Service
center.
Damage to the engine or exhaust system is
caused by the following:
R using engine oils and oil filters that have
not been specifically approved for the
service system
R replacing engine oil and oil filters after
the interval for replacement specified by
the service system has been exceeded
R using engine oil additives.
! Do not add too much oil. adding too much
engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off. X
Unscrew and remove oil filler cap :with
the integrated dipstick.
X Add engine oil.
If the oil level is at or under the MIN mark
on the oil dipstick, add 1.1 US qt (1.0 liter)
of engine oil.
X Replace cap :on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely.
X Check the oil level again with the oil
dipstick (Y page 215).
You will find further information about engine
oil in the "Technical data" section
(Y page 279). Checking and adding other service
products
Checking coolant level G
WARNING
The engine cooling system is pressurized,
particularly when the engine is warm. When
opening the cap, you could be scalded by hot
coolant spraying out. There is a risk of injury.
Let the engine cool down before opening the
cap. Wear eye and hand protection when
opening the cap. Open the cap slowly half a
turn to allow pressure to escape.
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down. 216
Engine compartmentMaintenance and care
ProCarManuals.com
X
Set the Start/Stop button to key position
2.
X Check the coolant temperature display in
the "AMG" menu (Y page 157).
The coolant temperature must be below
158 ‡ (70 †). X
Slowly turn cap :half a turn counter-
clockwise and allow excess pressure to
escape.
X Turn cap :further counter-clockwise and
remove it.
If the coolant is at the level of the marker
bar in the filler neck when cold, there is
enough coolant in coolant expansion
tank ;.
If the coolant level is approximately 0.6 in
(1.5 cm) above the marker bar in the filler
neck when warm, there is enough coolant
in coolant expansion tank ;.
X If necessary, add coolant that has been
tested and approved by Mercedes-Benz.
X Replace cap :and turn it clockwise as far
as it will go.
You will find further information about coolant
in the "Technical data" section
(Y page 280).
Windshield washer system and
headlamp cleaning system G
WARNING
If antifreeze comes into contact with hot
components in the engine compartment, it
may ignite. There is a risk of fire and injury. Let the engine cool down before you add
antifreeze. Make sure that antifreeze is not
spilled next to the filler neck. Thoroughly
clean the antifreeze from components before
starting the engine.
G
WARNING
Windshield washer concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust system it
could ignite. There is a risk of fire and injury.
Make sure that no windshield washer
concentrate is spilled next to the filler neck.
The washer fluid reservoir is used for both the
windshield washer system and the headlamp
cleaning system. X
To open: pull cap:upwards by the tab.
X Add the premixed washer fluid.
X To close: press cap :onto the filler neck
until it engages.
Further information on windshield washer
fluid/antifreeze (Y page 281). Maintenance
Service interval display
Service messages Information on the type of service and service
intervals (see the separate Maintenance
Booklet). Maintenance
217Maintenance and care Z
ProCarManuals.com
VIN
X
Slide the right-hand front seat to its
rearmost position.
X Fold floor covering :upwards.
You will see VIN ;.
Additionally, the vehicle identification
number (VIN) can be found in the following
locations:
R on the vehicle identification plate
(Y page 275)
R on the lower edge of the windshield
(Y page 276) Engine number
:
Emission control information plate,
including the certification of both federal
and Californian emissions standards
; VIN (on the lower edge of the windshield)
= Engine number (stamped into the
crankcase) Service products and filling
capacities
Important safety notes
G
WARNING
Comply with all valid regulations with respect
to handling, storing and disposing of service
fluids. Otherwise, you could endanger
persons or the environment.
Keep service fluids out of the reach of
children.
For health reasons, you should prevent
service fluids from coming into direct contact
with your skin or clothing.
If a service fluid is swallowed, contact a
physician immediately.
Service products include the following:
R Fuels
R Lubricants (e.g. engine oil, transmission oil)
R Coolant
R Brake fluid
R Windshield washer fluid
R Climate control system refrigerant
Components and service products must be
matched. You should therefore only use
products that have been tested and approved
by Mercedes-Benz.
Information on tested and approved products
can be obtained at an authorized Mercedes-
Benz Center or on the Internet at
http://bevo.mercedes-benz.com.
You can recognize service products approved
by Mercedes-Benz by the following
inscription on the containers:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51)
Other designations or recommendations
indicate a level of quality or a specification in
accordance with an MB Sheet number (e.g.
MB 229.5). They have not necessarily been
approved by Mercedes-Benz. 276
Service products and filling capacitiesTechnical data
ProCarManuals.com
If antifreeze comes into contact with hot
engine parts, it may ignite and you could burn
yourself. Do not spill any antifreeze on hot
engine parts.
! Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine.
Further information on coolants can be
found in the Mercedes-Benz Specifications
for Service Products, MB Specifications for
Service Products 310.1, e.g. on the
Internet at
http://bevo.mercedes-benz.com. Or
contact a qualified specialist workshop.
! Always use a suitable coolant mixture,
even in countries where high temperatures
prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosion and
overheating.
The coolant is a mixture of water and
antifreeze/corrosion inhibitor. It performs
the following tasks:
R corrosion protection
R antifreeze protection
R raising the boiling point
If the coolant has antifreeze protection down
to -35 ‡ (-37 †),the boiling point of the
coolant during operation is approximately
266 ‡ (130 †).
The an tifreeze/corrosion inhibitor
concentration in the engine cooling system
should:
R be at least 50%. This will protect the engine
cooling system against freezing down to
approximately -35 ‡ (-37 †).
R no t exceed 55% (antifreeze protection
down to -49 ‡ [-45 †]). Otherwise, heat
will no t be dissipated as effectively.
If the vehicle has lost coolant, add equal
amounts of water and antifreeze/corrosion
inhibitor. Mercedes-Benz recommends an
antifreeze/corrosion inhibitor concentrate in accordance with MB Specifications for
Service Products 310.1.
The coolant is checked with every
maintenance interval at a qualified specialist
workshop.
i
When the vehicle is first delivered, it is
filled with a coolant mixture that ensures
adequate antifreeze and corrosion
protection. Windshield/headlamp cleaning
system
Important safety notes G
WARNING
Windshield washer concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust system it
could ignite. There is a risk of fire and injury.
Make sure that no windshield washer
concentrate is spilled next to the filler neck.
! Only use washer fluid that is suitable for
plastic lamp lenses, e.g. MB SummerFit or
MB WinterFit. Unsuitable washer fluid
could damage the plastic lenses of the
headlamps.
! Do not add distilled or de-ionized water to
the washer fluid container. Otherwise, the
level sensor may be damaged.
! Only MB SummerFit and MB WinterFit
washer fluid should be mixed together. The
spray nozzles may otherwise become
blocked.
At temperatures above freezing:
X Fill the washer fluid reservoir with a mixture
of water and windshield washer fluid, e.g.
MB SummerFit.
Add 1 part MB SummerFit to 100 parts water. Service products and filling capacities
281Technical data Z
ProCarManuals.com