Warning lamp ................................. 238
Warning lamp (function) ...................58
Seats
Adjusting (electrically) ...................102
Adjusting the head restraint ..........103
Cleaning the cover .........................295
Correct driver's sea tposition ........100
Entry position (3rd row of seats) ....108
Exit position (3rd row of seats) ......108
Folding downt he 2nd row of
seats .............................................. 256
Folding downt he 3rd row of seats .257
Folding the 2nd row of seats
forward manually ........................... 107
Folding the rear bench seat
forwards/back ............................... 254
Important safety notes ..................101
Overview ........................................ 101
Resetting the 2nd row of seats ......258
Resetting the 3rd row of seats ....... 258
Seat heating problem ....................111
Seat ventilation problem ................111
Storing settings (memory
function) ........................................ 116
Switching sea theating on/off .......110
Switching seat ventilation on/off ..111
Securing hooks .................................. 260
Selector lever Cleaning ......................................... 295
Sensors (cleaning instructions) .......293
Service see ASSYST PLUS
Service products
Brake fluid ..................................... 355
Coolant (engine) ............................ 355
DEF special additive s..................... 353
Engine oil ....................................... 354
Fuel ................................................ 351
Important safety notes ..................350
Washer fluid .................................. .356
Service work
see ASSYST PLUS
Settings
Factory (on-board computer) .........206
On-board computer .......................206
Setting the air distribution ...............141
Setting the airflow ............................141Short journeys (diesel particle
filter)
................................................... 169
Side impact air bag .............................45
Side marker lamp (display
message) ............................................ 223
Side marker lamps (changing
bulbs) ................................................. 128
Side windows Cleaning ......................................... 292
Convenience closing feature ............91
Convenience opening feature ..........90
Hinged sid ewindows ....................... 90
Important safety information ...........89
Opening/closing .............................. 89
Overview .......................................... 89
Problem (malfunction) .....................93
Resetting ......................................... 92
Sliding sunroof
Important safety notes ....................93
Opening/closing .............................. 94
Problem (malfunction) .....................97
Resetting ......................................... 95
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery .......................80
Changing the programming .............78
Checking the battery .......................79
Convenience closing feature ............91
Convenience opening feature ..........90
Display message ............................ 236
Door central locking/unlocking .......77
Important safety notes ....................76
Loss ................................................. 81
Mechanical key ................................ 78
Overview .......................................... 76
Positions (ignition lock) .................149
Problem (malfunction) .....................81
Starting the engine ........................151
Snow chains
Information .................................... 315
Sockets
2nd row of seats ............................ 270
Center console .............................. 269
Front-passenger footwell ...............269
General notes ................................ 269
Luggage compartment ...................270 Index
15
Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 24).Overview of climate control systems
Important safety notes
G
WARNING
Observe the settings recommended on the
following pages. The windows could
otherwise fog up. This could preven tyou from
observing the traffic conditions, thereby
causing an accident. G
WARNING
Severe conditions (e.g. strong air pollution)
may require replacement of the filter before
its scheduled replacement interval. Aclogged
filter will reduce the air volume to the interior
and the windows could fog up, impairing
visibility and endangering you and others.
Have a clogged filter replaced as soon as
possible at a qualified specialist workshop.
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control is only operational when the
engine is running. The system only works
optimally when the side windows and the roof
are closed.
The residual heat function can only be
activated or deactivated with the ignition
switched off (Y page 143). i
Ventilate the vehicle for a brief period
during warm weather, e.g. using the
convenience opening feature (Y page 90).
This will speed up the cooling process and
the desired vehicle interior temperature
will be reached more quickly.
i The integrated filter can filter out most
particles of dust, and completely filters out
pollen .Aclogged filter reduces the amount
of air supplied to the vehicle interior .For
this reason, you should always observe the
interval for replacing the filter, which is
specified in the Maintenance Booklet.
Since the replacement interval depends on
environmental conditions, e.g. heavy air
pollution, the interval may be shorter than
stated in the Maintenance Booklet. 134
Overview of climate control systemsClimate control
Display messages Possible causes/consequences and
M Solutions
8
Reserve Fuel The fuel level has dropped into the reserve range.
X
Refuel at the neares tgas station. C There is only a very small amoun
toffuel in th efuel tank.
X Refuel at the neares tgas statio nwithout fail. 8
Gas Cap Open 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.
If the fuel filler cap is not correctly closed:
X Close the fuel filler cap.
If the fuel filler cap is correctly closed:
X Visit a qualified specialist workshop. 8
Ultra Low-sulfur
Diesel Fuel Only Vehicles with a diesel engine: the fuel level has fallen below the
reserve range.
X
Refuel at the nearest gas station.
X Only use commercially available vehicular ULTRA-LOW SULFUR
HIGHWAY DIESEL FUEL (ULSD, 15ppm SULFUR MAXIMUM). ¸
Replace air filter Vehicles with a diesel engine: the engine air filter is dirty and must
be replaced.
X
Visit a qualified specialist workshop. ·
Clean Fuel Filter Vehicles with a diesel engine: there is water in the fuel filter. The
water must be drained off.
X
Visit a qualified specialist workshop. Ø
Check
Additive See
Operator's Manual The DEF tank is almost empty.
X
Have the DE Ftank refilled as soon as possible at a qualified
specialist workshop (Y page 164).Ø
Remaining Starts:
16 The DE
Flevel has fallen to a minimum. You can start the engine a
further 16 times.
X Have the DEFt ank refilled as soon as possible at a qualified
specialist workshop (Y page 164).
i You can start the engine a further 16 times. If DE Fis not added,
it will then not be possible to restart the engine. add DEF tank
with approximately 1gal (3. 8l) DEF( Ypage 164). Display messages
227On-board computer and displays Z
Information abou
tService Resetting the ASSYST PLUS service
interval display
!
If the ASSYST PLUS service interval
display has been inadvertently reset, this
setting can be correcte dataqualified
specialist workshop.
Have service work carried out as described
in the Maintenance Booklet. This may
otherwise lead to increased wear and
damage to the major assemblies or the
vehicle.
Aq ualified specialist workshop, e.g. an
authorized Mercedes-Ben zCenter, will reset
the ASSYST PLUS service interval display
after the service work has been carried out.
You can also obtain further information on
maintenance work, for example.
Special service requirements
Arduous operating conditions or increased
loads on the vehicle will require some service
work to be performed more often than for a
vehicle in normal use. Such arduous
conditions include regular city driving with
frequent intermediate stops and use in
mountainous terrain or on poor road
surfaces.
For example, if the vehicle is used under
arduous operating conditions, have air filters,
engine oil and oil filters changed frequently
and chec kthe wheels often.F urther
information can be obtaine dataqualified
specialist workshop, e.g. an authorized
Mercedes-Benz Center.
Driving abroad
An extensive Mercedes-Benz Service network
is also available in other countries. You can
obtain further information from any
authorized Mercedes-Benz Center. Care
General notes
G
WARNING
Many cleaning products can be hazardous.
Some are poisonous, others are flammable.
Always follow the instructions on the
particular container .Always open your
vehicle's doors or windows when cleaning the
inside.
Never use fluids or solvents that are not
designed for cleaning your vehicle.
Always lock away cleaning products and keep
them out of reach of children. H
Environmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible
manner.
! 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
Do not scrub.
Do not touch the surfaces or protective
films with hard objects, e.g. a ring or ice
scraper. You could otherwise scratch or
damage the surfaces and protective film.
! Do not park the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosio nofthe brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after
cleaning. Braking heats the brake discs and
the brake pads/linings, thus drying them.
The vehicle can then be parked.
Regular care of your vehicle is a condition for
retaining the quality in the long term. Care
289Maintenance and care Z
Purity
!
Impurities in DEF (e.g. due to other
service products, cleaning agents or dust)
lead to:
R increased emission values
R damage to the catalytic converter
R engine damage
R malfunctions in the BlueTEC exhaust gas
aftertreatment system
Assuring the purity of DEFi s particularly
important with respect to avoiding
malfunctions in the BlueTEC exhaust gas
aftertreatment system.
If DEF is pumped out of the DEF tank, e.g.
during repair work, it must not be returned to
the tank. The purity of the fluid can no longer
be guaranteed.
Total capacity of the DEF tank Model Total capacity
R3
50 BlueTEC 7.5 US gal
(28.2 l) Engine oil
General notes !
Never use engine oil or an oil filter of a
specification other than is necessary to
fulfill the prescribed servic eintervals. Do
not change the engine oil or oil filter in
order to achieve longe rreplacement
intervals than those prescribed. You could
otherwise cause engine damage or damage
to the exhaust gas aftertreatment.
Follow the instructions in the service
interval display regarding the oil change.
Otherwise, you may damage the engine and
the exhaust gas aftertreatment.
The engine oils are matched to the
performance of Mercedes-Benz engines and
service intervals. You should therefore only
use engine oils and oil filters that are approved for vehicles with maintenance
systems.
For a list of approved engine oils and oil filters,
consult an authorized Mercedes-Benz
Center
.Orvisit the website
http://bevo.mercedes-benz.com.
The table shows which engine oils have been
approved for your vehicle. Model Engine
model MB
Approval
R3
50
BlueEFFICIENCY 276 229.5
R3
50 BlueTEC 642 229.51
i
MB approval is indicated on the oil
containers.
Filling capacities The following values refer to an oil change
including the oil filter.
Model Capacity
R3
50
BlueEFFICIENCY 7.9 US qt (7.5 l)
R3
50 BlueTEC 9.0 US qt (8.5 l)
Additives
!
Do not use any additives in the engine oil.
This could damage the engine.
Engine oil viscosity 354
Service products and filling capacitiesTechnical data