Display messagesPossible causes/consequences andMSolutions
4
Engine Oil ReduceOil Level
You haveadded to omuc hengin eoil. The engin eor catalytic converter
may be damaged.
XSiphon off excess engin eoil until it is at th especified level. Observ e
th elegal requirements .
4
Engine Oil LevelCannot Be Measured
The measuringsystem is faulty.
XVisit aqualified specialist workshop .
8
FuelLevel Low
The fuel level has dropped int oth ereserv erange.
XRefue lat th eneares tgas station .
CThere is only aver ysmall amount of fuel in th efuel tank.
XRefue lat th eneares tgas station without fail .
8
Gas Cap Loose
The fuel filler cap is notclosed correctl yor th efuel system is leaking .
XCheckthat th efuel filler cap is correctl yclosed .
If th efuel filler cap is not correctl yclosed :
XCloseth efuel filler cap .
If th efuel filler cap is correctl yclosed :
XVisitaqualified specialist workshop .
Driving systems
Display messagesPossible causes/consequences and MSolutions
À
ATTENTION ASSIST:Take a Break!
Based on certain criteria, ATTENTION ASSIST has detecte dfatigue or
a lack of concentration on th epart of th edriver . Awarning tone also
sounds.
XIf necessary, tak e abreak.
During lon gjourneys, tak eregular breaks in goo dtime so you get
enough rest.
À
ATTENTION ASSISTInoperative
ATTENTION ASSIST is inoperative.
XVisit aqualified specialist workshop .
¨
Malfunction
There isamalfunction in th echassis. The vehicle's handlin gcharac -
teristics may be affected.
XVisit aqualified specialist workshop .
180Display messages
On-board computer and displays
Display messagesPossible causes/consequences andMSolutions
Transmission Mal‐function StopAmalfunction has occurred in th emechanical transmission compo -
nents.
A warning tone also sounds. The gearbox automatically shift sto posi-
tion N.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XShift th eselector lever to position P.
XSecureth evehicl eagainst rollin gaway (Ypage 119).
XNotify aqualified specialist workshop or breakdown service.
Depres sBrake toStart EngineYou canno tstart th eengine. The engin ewas switched off in position D
or R.
XDepress th ebrak epedal and start th eengine.
Onl yShift to 'P'whe nVehicl eisSta‐tionar y
The vehicl eis moving .
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XShift th etransmission to position P.
j
ParkingLoc kMal ‐funct. Apply Park‐ing Brake
Transmission position Pcanno tbe selected.
XMak esur ethat th eelectric parking brak eis applied.
XPreven tth evehicl efrom rollin gaway before you leav eit
(Ypage 273).
XVisit aqualified specialist workshop .
d
Transmission OilCoolingMalfunction
The transmission coolan tpump is faulty. The transmission may over-
heat .
XIn th eon-boar dcomputer, select th eAMGmen uand chec kth e
transmission oil temperature (Ypage 162).
XAvoid excessive loading,e.g. due to dynamic driving.
XIf th etransmission oil temperature is less than 24 8‡( 120 †), you
can continue driving to the nearest qualified specialist workshop.
d
Trans. Oil Overhea‐ted Drive on withCare
The transmission oil has overheated.
Manual mode Mand temporary manual drive program are no longer
available. Only the Comfort setting is available for the transmission.
The engine output is reduced according to the degree of overheating.
XAllow the transmission oil to cool by adopting a defensive driving
style.
Electronic RearAxle DifferentialLock Inoperative
The electronic rear axle differential lock is inoperative.
XVisit a qualified specialist workshop.
Electronic RearAxle DifferentialLock CurrentlyUnavailable
The electronic rear axle differential lock motor has overheated.
XAllow electronic rear axle differential lock to cool by adopting a
defensive driving style.
186Display messages
On-board computer and displays
Display messagesPossible causes/consequences andMSolutions
NThe tailgateis open .
GWARNIN G
Whe nth eengin eis running, exhaust gase scan ente rth evehicl einte-
rio rif th etailgat eis open .
There is aris kof poisoning .
XCloseth etailgate.
MThe hoo dis open . Awarning tone also sounds.
GWARNIN G
The open hoo dmay bloc kyour vie wwhen th evehicl eis in motion .
There is aris kof an accident.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 119).
XCloseth ehood.
CAt least on edoor is open . Awarning tone also sounds.
XClos eall th edoors.
Rea rSpoile rCon ‐trolSystem Inoper ‐ative
The rear spoiler canno tbe full yretracte dand may extend again .
If th eretraction of th erear spoiler is blocked, e.g. by ice :
XMakesur ethat th ecaus eof th ebloc kis eliminated.
XSwitc hoff th eengin eand loc kth evehicle.
XStart th evehicl eafter waiting afew minutes.
The rear spoiler return sto th eoriginal position .
If this problem persists or th ecaus ecanno tbe identified:
XVisit aqualified specialist workshop .
RearSpoile rInoper‐ative Limit 125 mphThe rear spoiler canno tbe full yextended and extend sas far as pos -
sible.
The speed of th evehicl eis limite dto 12 5mph (20 0km/h ).
If the extension/retraction of the rear spoiler is blocked, e.g. by ice:
XMake sure that the cause of the block is eliminated.
XSwitch off the engine and lock the vehicle.
XStart the vehicle after waiting a few minutes.
The rear spoiler returns to the original position.
If this problem persists or the cause cannot be identified:
XVisit a qualified specialist workshop.
Display messages187
On-board computer and displays
Z
Rear spoiler
Overview
The rear spoiler improves the handling of the
vehicle. It adapts the vehicle's aerodynamics to the operating conditions, dependent on the
speed of the vehicle.
Only use button :in the switch strip above the
overhead control unit to extend and retract the
rear spoiler manually for cleaning. Button :is
not used to operate the rear spoiler.
The rear spoiler is extended automatically if you
drive faster than:
R75 mph (120 km/h) in drive programs C,S
and S+
R44 mph (70 km/h) in drive program RACE
Button :flashes until the rear spoiler has
extended and then lights up in red.
The rear spoiler is retracted automatically when you drive slower than:
R50 mph (80 km/h) in drive programs C,S and
S+
R19 mph (30 km/h) in drive program RACE
Button :flashes until the rear spoiler has
retracted and then goes out.
Extending and retracting the rear
spoiler manually
GWARNING
Body parts could become trapped if you man-
ually retract the rear spoiler. There is a risk of
injury.
Make sure that nobody is within the range of
movement of the rear spoiler. Release the
switch immediately if somebody becomes
trapped. The rear spoiler then extends again.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
!Do not enter an automatic car wash with the
rear spoiler extended. Otherwise, the rear
spoiler may be damaged.
Only extend the rear spoiler in order to clean
it by hand. Retract it again when you have fin-
ished cleaning it.
You can extend and retract the rear spoiler man- ually for cleaning.
XClose the tailgate.
XSelect SmartKey position 2with the Start/
Stop button (Ypage 103).
XTo extend: press button :.
The rear spoiler is extended.
Button :flashes until the rear spoiler has
extended and then lights up in red.
XTo retract: press and hold button :until the
rear spoiler is completely retracted.
Button :flashes until the rear spoiler has
retracted and then goes out.
Rear Spoiler Retracts Manually
appears in the display.
If you release button :while retracting the rear
spoiler, it extends again automatically.
222Features
Stowage and features
Problems with the rear spoiler
ProblemPossible causes/consequences andMSolutions
The rear spoiler stops
before reaching the end
position when retracting
manually.You have opened the tailgate while manually retracting the rear
spoiler.
XClose the tailgate.
The rear spoiler extends or, if you press and hold the ¬button,
continues retracting.
The rear spoiler stops
before reaching the end
position when retract-
ing/extending manually.You have switched off the ignition.
XSwitch the ignition back on.
XPress the ¬button.
The rear spoiler extends/retracts.
The rear spoiler cannot
be retracted again after
manually extending it.You have opened the tailgate while manually extending the rear
spoiler.
XClose the tailgate.
The rear spoiler does not
extend or retract auto-
matically.The rear spoiler's movement is blocked, e.g. by an object jammed
between the body and the rear spoiler.
XRemove the object.
Garage door opener
General notes
The HomeLink®garage door opener integrated
in the rear-view mirror allows you to operate up
to three different door and gate systems.
Use the integrated garage door opener only on
garage doors that:
Rhave safety stop and reverse features and
Rmeet current U.S. federal safety standards
Once programed, the integrated garage door
opener in the rear-view mirror will assume the
function of the garage door system's remote
control. Please also read the operating instruc-
tions for the garage door system.
When programming a garage door opener, park
the vehicle outside the garage. Do not run the
engine while programming.
Certain garage door drives are incompatible
with the integrated garage door opener. If you
have difficulty programing the integrated garage door opener, contact an authorized Mercedes-
Benz Center. Alternatively, you can call the following tele-
phone assistance services:
RUSA:
Mercedes-Benz Customer Assistance
Center at 1-800-FOR-MERCedes
RCanada: Customer Service at
1-800-387-0100
RHomeLink®hotline 1-800-355-3515 (free of
charge)
More information on HomeLink
®and/or com-
patible products is also available online at
http://www.homelink.com.
Notes on the declaration of conformity
(
Ypage 24).
USA: FCC ID: CB2HMIHL4
Canada: IC: 279B-HMIHL4
Important safety notes
GWARNING
When you operate or program the garage door
with the integrated garage door opener, per-
sons in the range of movement of the garage
door can become trapped or struck by the
garage door. There is a risk of injury.
When using the integrated garage door
opener, always make sure that nobody is
Features223
Stowage and features
Z
XMake sure that the windshield wipers are
turned off.
XPull release lever:on the hood.
The hood is released.
XReach into the gap, pull hood catch handle ;
up and lift the hood.
If you lift the hood by approximately 15 in
(40 cm), the hood is opened and held open
automatically by the gas-filled strut.
Closing the hood
XLower the hood and let it fall from a height of
approximately 8 in (20 cm).
XCheck that the hood has engaged properly.
If the hood can be raised slightly, it is not
properly engaged. Open it again and close it
with a little more force.
Engine oil
Notes on the oil level
Depending on your driving style, the vehicle
consumes up to 0.9 US qt (0.8 liters) of oil per
600 miles (1,000 km). The oil consumption may be higher than this when the vehicle is new or if
you frequently drive at high engine speeds.
Depending on the engine, the oil dipstick may be
in a different location.
It is only possible to correctly measure the oil
level when:
Rthe engine is at normal operating temperature
Rthe vehicle is parked on a level surface
Rthe engine is left running in neutral for at least
30 seconds before switching off
This applies when checking the oil level using
the oil dipstick or on-board computer.
Checking the oil level using the oil dip-
stick
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
It is only possible to correctly measure the oil
level with the oil dipstick when the engine is at
normal operating temperature and in a period of
2 to minutes after the engine has been switched
off.
XPull oil dipstick :out of the dipstick guide
tube.
XWipe off oil dipstick :.
228Engine compartment
Maintenance and care
XSlowly slide oil dipstick:into the guide tube
to the stop, and take it out again.
If the level is between MIN mark =and MAX
mark ;, the oil level is correct.
XIf the oil level has dropped to MIN mark =or
below, add 1.1 US qt (1.0 liter) engine oil.
Engine compartment229
Maintenance and care
Z
Checking the oil level using the on-board computer
XSelect key position2with the Start/Stop button.
XUse ò on the steering wheel to call up the list of menus.
XPress the :or9 button on the steering wheel to select the Servicemenu.
XConfirm by pressingaon the steering wheel.
XUse: or9 to select the Engine Oil Levelsubmenu.
XPressato confirm the selection.
The Measuring Engine Oil Level Accurate Only When Vehicle Is Levelmessage
appears in the multifunction display.
The measurement takes a few seconds. You will see one of the following messages in the multi-
function display:
Display messagesPossible causes/consequences and MSolutions
Engine Oil Level OKThe oil level is correct.
Check Engine OilLevel (Add 1 Liter)
The oil level is too low.
XAdd 1.1 US qt (1.0 liter) of engine oil.
Reduce Engine OilLevel
The engine oil level is too high.
XHave excess engine oil siphoned off.
For Engine OilLevelIgnitionMustBe On
The ignition is switched off.
XSelect key position2with the Start/Stop button.
Need More Time toCheck Engine OilLevel
The required waiting period was not observed.
XThe engine must be at regular operating temperature.
It is only possible to make a correct measurement within the first 4
minutes after the engine has been switched off.
Engine Oil LevelNotMeasurablewithEngine Running
The engine is running; oil level measurement is not possible.
XSwitch off the engine.
XRepeat the measurement. Observe the required waiting period.
Engine Oil LevelCorrectMeasurementOnly if Vehicle Ison Level Ground
The vehicle is not parked on a level surface.
XPark the vehicle on a level surface.
Engine oil levelcannot be measured.
The oil level measurement with the oil dipstick is possible. The meas-
uring system is malfunctioning.
XVisit a qualified specialist workshop.
Adding engine oil
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
230Engine compartment
Maintenance and care