
Program mode selector switch
Automatic shift program ................114
Manual shift program ..................... 116
Proximity key
see Key, SmartKey
PSI (air pressure unit) ....................... 241
R
RACETIMER ........................................ 124
Radiator ..................................... 214, 242
Radio
Selecting stations ..........................126
Radio transmitters ............................ 257
Rain sensor see Intermittent wiping
Rear axle oil ....................................... 357
Rear center console ashtray see Ashtrays
Rear doors
Child safety locks ............................ 60
Rear door window
Override switch ................................ 60
Rear fog lamp
see Fog lamps
Rear lamps
see Tail lamps
Rear seat head restraints
see Head restraints
Rear view camera .............................. 163
Cleaning the camera lens ..............263
Rear window defroster ..................... 183
Rear window wiper/washer ............. 100
Recommended tire inflation
pressure ..................................... 219, 241
Refilling
AdBlue ®
......................................... 332
Refrigerant, air conditioning ............ 359
Refueling ............................................ 210
Regular checks .................................. 212
Reminder, Seat belt see Seat belts, Telltale
Remote control
see Key, SmartKey
Remote door unlock (Tele Aid) ......... 203
Replacing
Key .................................................. 74
Replacing bulbs ................................. 311
Reporting safety defects .................... 24
Research Octane Number see RON
Reserve fuel
Messages in the multifunction
display ........................................... 291
Warning lamp ................................... 29
Reset button ................................ 28, 118
Reset tool (NECK-PRO active front
head restraints) ................................. 309
Restraint systems see Occupant safety
Rims ........................................... 241, 352
Roadside Assistance ................... 21, 201
RON (Research Octane Number) ..... 360
Rubber parts, cleaning ...................... 264
Run-flat tires see MOExtended tires
S
Safety
Driving safety systems .....................61
Occupant safety ............................... 36
Reporting defects ............................ 24
Safety belts
see Seat belts
Seat belt force limiter ......................... 52
Seat belts ............................................. 48
Adjustment function ........................51
Children in the vehicle .....................55
Cleaning ......................................... 265
Fastening ......................................... 50
Height adjustment ...........................51
Proper use of ................................... 48
Safety guidelines ............................. 39
Safety notes ..................................... 48
Telltale ..................................... 29, 300
Seat heating ......................................... 86
Seating capacity ................................ 228
Seats ..................................................... 81
Adjustment ...................................... 81
Easy-entry/exit feature ....................87
Folding (expanding cargo volume) . 189
Heating ............................................ 86
Memory function .............................. 92
Multicontour seat ............................ 85
Ventilation ....................................... 85
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Instrument clusterFunctionPage:# Left turn signal
indicator lamp
;To dim instrument cluster
illumination118
=Reset button for: Trip odometer118Settings129?To brighten instrument
cluster illumination118
A! Right turn signal
indicator lamp
BClock 132CSpeedometer with: ! Antilock Brake
System (ABS) indicator
lamp 298
È Variable speed limiter
indicator lamp2FunctionPage$ Brake warning lamp,
USA only 299
d ESP® warning lamp 301· Distance warning
lamp3302
J Brake warning lamp,
Canada only299
h Combination low tire
pressure/TPMS
malfunction telltale, USA
only
223,
304
2Lamp without function. It illuminates when the ignition is on. It should go out when the engine is running.3Vehicles without Distronic: Warning lamp without function. It illuminates when the ignition is on. It shouldgo out when the engine is running.
28Instrument clusterAt a glance
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Vehicle equipment
i This Operator’s Manual describes all
features, standard or optional, potentially
available for your vehicle at the time of
purchase. Please be aware that your
vehicle might not be equipped with all
features described in this manual.
Occupant safety
Introduction
In this section you will learn the most
important facts about the restraint system
components of the vehicle.
The restraint systems are:
R Seat belts
R Child restraints
R
Lower Anchors and Tethers for CHildren
(LATCH)
Additional protection potential is provided by:
R
Supplemental Restraint System (SRS) with
- Air bags
- Air bag control unit (with crash sensors)
-
Emergency Tensioning Device (ETD) for
seat belts
- Seat belt force limiter
R NECK-PRO active front head restraints
R Preventive occupant safety (PRE-SAFE ®
)
R Air bag system components with
- Front passenger front air bag off
indicator lamp
- USA only: Front passenger seat with
Occupant Classification System (OCS)
- Canada only: Front passenger seat with
BabySmart™ air bag deactivation system
Although the systems are independent, their
protective functions work in conjunction with
each other.
GWarning!
Modifications to or work improperly
conducted on restraint system components
or their wiring, as well as tampering with
interconnected electronic systems, can lead
to the restraint systems no longer functioning
as intended.
Air bags or Emergency Tensioning Devices
(ETDs), for example, could deploy
inadvertently or fail to deploy in accidents
although the deceleration threshold for air
bag deployment is exceeded. Therefore,
never modify the restraint systems. Do not
tamper with electronic components or their
software.
i See “Children in the vehicle”
( Y page 55) for information on
R infants and children traveling with you in
the vehicle
R restraint systems for infants and children
SRS indicator lamp
The SRS system conducts a self-test when
the ignition is switched on and in regular
intervals while the engine is running. This
facilitates detection of system malfunctions.
The SRS indicator lamp + in the
instrument cluster comes on when the
ignition is switched on. It goes out no later
than a few seconds after the engine has been
started.
The SRS components are in operational
readiness when the SRS indicator lamp
+ is not lit while the engine is running.
A malfunction in the system has been
detected if the SRS indicator lamp +
R fails to go out after approximately
4 seconds after the engine was started
R does not come on at all
R comes on after the engine was started or
while driving
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way than as described in this section, as
that could result in serious injuries in case
of an accident.
R Each occupant should wear their seat belt
at all times, because seat belts help reduce
the likelihood of and potential severity of
injuries in accidents, including rollovers.
The integrated restraint system includes
SRS (driver front air bag, front passenger
front air bag, side impact air bags, window
curtain air bags for door windows),
Emergency Tensioning Devices (ETDs),
seat belt force limiters, and front seat knee
bolsters.
The system is designed to enhance the
protection offered to properly belted
occupants in certain frontal (front air bags
and ETDs) and side (side impact air bags,
window curtain air bags, and ETDs) impacts
which exceed preset deployment
thresholds and in certain rollovers (window
curtain air bags and ETDs).
R Never wear the shoulder belt under your
arm, against your neck or off your shoulder.
In a frontal crash, your body would move
too far forward. That would increase the
chance of head and neck injuries. The seat
belt would also apply too much force to the
ribs or abdomen, which could severely
injure internal organs such as your liver or
spleen.
Adjust the seat belt so that the shoulder
section is located as close as possible to
the middle of the shoulder. It should not
touch the neck. Never pass the shoulder
portion of the seat belt under your arm. For
this purpose, you can adjust the height of
the seat belt outlet.
R Position the lap belt as low as possible on
your hips and not across the abdomen. If
the lap belt is positioned across your
abdomen, it could cause serious injuries in
a crash.
R Never wear seat belts over rigid or
breakable objects in or on your clothing,such as eyeglasses, pens, keys etc., as
these might cause injuries.
R Make sure the seat belt is always fitted
snugly. Take special care of this when
wearing loose clothing.
R Never use a seat belt for more than one
person at a time. Do not fasten a seat belt
around a person and another person or
other objects at the same time.
R Seat belts should not be worn twisted. In a
crash, you would not have the full width of
the seat belt to distribute impact forces.
The twisted seat belt against your body
could cause injuries.
R Pregnant women should also always use a
lap/shoulder belt. The lap belt portion
should be positioned as low as possible on
the hips to avoid any possible pressure on
the abdomen.
R Place the seat backrest in a position that is
as upright as possible.
R Check your seat belt during travel to make
sure it is properly positioned.
R Never place your feet on the instrument
panel, dashboard, or on the seat. Always
keep both feet on the floor in front of the
seat.
R When using a seat belt to secure infant
restraints, toddler restraints, or children in
booster seats, always follow the child seat
manufacturer’s instructions.GWarning!
Do not pass seat belts over sharp edges. They
could tear.
Do not allow the seat belt to get caught in the
door or in the seat adjustment mechanism.
This could damage the seat belt.
Never attempt to make modifications to seat
belts. This could impair the effectiveness of
the seat belts.
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If you and/or your passenger release the
seat belt during driving, the seat belt
telltale 7 starts flashing and the
warning chime sounds as described before.
If the driver’s or the front passenger’s seat
belt remains unfastened after 60 seconds,
the warning chime stops sounding, the seat
belt telltale 7 stops flashing but
continues to be illuminated.
After a vehicle standstill, the warning chime
is reactivated and the seat belt telltale
7 is flashing again if the vehicle speed
once exceeds 15 mph (25 km/h).
The seat belt telltale 7 will only go out if
both the driver’s and the front passenger’s
seat belt (with the front passenger seat
occupied) are fastened, or the vehicle is
standing still and a front door is opened.
For more information, see “Practical hints”
( Y page 300).
Emergency Tensioning Device (ETD),
seat belt force limiter
The seat belts for the front seats and rear
outer seats are equipped with ETDs and seat
belt force limiters.
The ETDs are designed to activate in the
following cases:
R in frontal or rear-end impacts exceeding
the system’s preset deployment threshold
R in side impacts exceeding the system’s
preset deployment threshold on the far
side of the impact
R in certain vehicle rollovers
R if the restraint systems are operational and
functioning correctly, see “SRS indicator
lamp” ( Y page 36)
The ETDs for the front seats will only activate
if the front seat belts are fastened (latch plate
properly inserted into buckle).
The ETDs for the rear outer seats will activate
with or without the respective seat belts
fastened.
In an impact, the ETDs remove slack from the
seat belts in such a way that the seat belts fit
more snugly against the body. Seat belt force
limiters, when activated, are employed to
help reduce the peak force exerted by the
seat belts on occupants during a crash.
i The ETDs do not correct an incorrect seat
position or incorrectly worn seat belts.
The ETDs do not pull occupants back
toward the seat backrest.GWarning!
Pyrotechnic ETDs that were activated must be
replaced.
For your safety, when disposing of the
pyrotechnic ETDs always follow our safety
instructions. These are available at any
authorized Mercedes-Benz Center.
The PRE-SAFE ®
system has electrically
operated reversible pre-tensioners that do
not require replacement after activation.
Preventive occupant safety (PRE-
SAFE ®
)
GWarning!
The PRE-SAFE ®
system is intended to reduce
the effects of an accident on vehicle
occupants who are wearing their seat belt
properly. Despite your vehicle being equipped
with the PRE-SAFE ®
system, the possibility of
personal injuries occurring as a result of an
accident cannot be eliminated. Therefore,
always drive carefully and adjust your driving
to the prevailing road, weather, and traffic
conditions.
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IndexSpeed ratingH M+S20up to 130 mph (210 km/h)V M+S20up to 149 mph (240 km/h)
iNot all M+S rated tires provide special
winter performance. Make sure the tires
you use show M+S and the mountain/
snowflakeimarking on the tire
sidewall. These tires meet specific snow
traction performance requirements of the
Rubber Manufacturers Association (RMA)
and the Rubber Association of Canada
(RAC) and have been designed specifically
for use in snow conditions.
An electronic speed limiter prevents your
vehicle from exceeding a speed of:
RAll models except ML 63 AMG:
130 mph (210 km/h)
RML 63 AMG:
155 mph (250 km/h)
RML 63 AMG with increased top speed:
171 mph (275 km/h)
The factory equipped tires on your vehicle
may have a tire speed rating above the
maximum speed permitted by the electronic
speed limiter.
Make sure your tires have the required tire
speed rating as specified for your vehicle in
the “Technical data” section (Y page 352),
for example when purchasing new tires.
If you are uncertain about the correct reading
of the information given on a tire’s sidewall,
any authorized Mercedes-Benz Center will be
glad to assist you.
Load identification
iFor illustration purposes only. Actual data
on tires are specific to each vehicle and
may vary from data shown in above
illustration.
In addition to the load index, special load
identification : may be molded into the tire
sidewall following the letter designating the
speed symbol B (Y page 236).
RNo specification given: absence of any text
(like in above example) indicates a
standard load (SL) tire.
RXL or Extra Load: designates an extra load
(or reinforced) tire.
RLight Load: designates a light load tire.
RC, D, E: designates load range associated
with the maximum load a tire can carry at
a specified pressure.
DOT, Tire Identification Number (TIN)
U.S. tire regulations require each new tire
manufacturer or tire retreader to mold a TIN
into or onto a sidewall of each tire produced.
20or M+Sifor winter tires238Tires and wheelsOperation
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