5
CD player/CD changer
Operation (on-board computer) . . .126
Central locking
Automatic locking (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .134
Key . . . . . . . . . . . . . . . . . . . . . . . . . .68
KEYLESS GO . . . . . . . . . . . . . . .70, 71
Central locking/unlocking button . ..75
Central unlocking Key . . . . . . . . . . . . . . . . . . . . . . . . . .68
KEYLESS GO . . . . . . . . . . . . . . .70, 71
Centre console
2nd row of seats . . . . . . . . . . . . . .195
Changing a wheel
see Flat tyre
Child-proof locks
Rear doors . . . . . . . . . . . . . . . . . . . .57
Side windows (rear) . . . . . . . . . . . . .57
Children
in the vehicle . . . . . . . . . . . . . . . . . .47
Restraint systems . . . . . . . . . . . . . .48
Child seat
Automatic recognition . . . . . . . . . . .50
Automatic recognition (malfunc-
tion) . . . . . . . . . . . . . . . . . . . . . . . .280
Child seat lock . . . . . . . . . . . . . . . .54
ISOFIX . . . . . . . . . . . . . . . . . . . . . . .54
On the front-passenger seat . . . . . .49
Recommendation s.. . . . . . . . . . . . .53Suitable positions . . . . . . . . . . . . .
.51
TopTether . . . . . . . . . . . . . . . . . . . . .56
Child seat lock . . . . . . . . . . . . . . . . . . .54
Cigarette lighter . . . . . . . . . . . . . . . .206
Cockpit Overview . . . . . . . . . . . . . . . . . . . . .22
COMAND . . . . . . . . . . . . . . . . . . . . . . .123
On-board computer . . . . . . . . . . . .123
see separate Operating Instructions
Compass . . . . . . . . . . . . . . . . . . . . . . .212
Display message . . . . . . . . . . . . . .260
Constant headlamp mode
Setting (on-board computer) . . . . .132
Consumption statistics (on-board
computer) . . . . . . . . . . . . . . . . . . . . . .137
Convenience closing . . . . . . . . . . . ..108
Coolant . . . . . . . . . . . . . . . . . . . . . . . .223
Checking the level . . . . . . . . . . . . .223
Display message . . . . . .265, 269, 270
Mixture ratio . . . . . . . . . . . . . . . . .360
Temperature gauge . . . . . . . . . . . .125
Cornering light
Display message . . . . . . . . . . . . . .270
Cruise control . . . . . . . . . . . . . . . . . .140
Display message . . . . . . . . . .263, 264
Cup holder . . . . . . . . . . . . . . . . . . . . .183 D
Dashboard see Cockpit
see Instrument cluster
Date
Setting (on-board computer) . . . . .131
Daytime driving lights
see Constant headlamp mode
Delayed switch-off
Exterior lighting (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .133
Interior lighting (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .133
Diesel
Low outside temperatures . . . . . . .220
Diesel engine
Winter driving . . . . . . . . . . . . . . . . .220
Digital speedometer . . . . . . . . . . . ..125
Setting the unit (on-board com-
puter) . . . . . . . . . . . . . . . . . . . . . . .131
Dipped-beam headlamps
Display message . . . . . . . . . . . . . .270
Symmetrical . . . . . . . . . . . . . . . . . .235
Display message . . . . . . . . . . . . . . ..255
Service indicator . . . . . . . . . . . . . .242
Symbol messages . . . . . . . . . . . . .264
Text messages . . . . . . . . . . . . . . . .256 Index
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On-board computer
124 Function
1 Basic display
menu (Ypage 125)
R Tyre pressure loss warning system
(Y page 227) or tyre pressure mon-
itor* (Y page 228)
R Coolant temperature (Y page 125)
R Digital speedometer 19
or outside
temperature (Y page 125).
R ASSYST PLUS service interval dis-
play (Y page 242) 2
Audio/TV*/DVD*
menu
(Y page 126)
R Radio station ( Ypage 126)
R Audio drive or media*
(Y page 126)
R TV* (Y page 127)
R DVD video* (Y page 127) 3
Navigation*
menu (Ypage 127) Function
4
AIRMATIC*/compass*
menu
(Y page 128)
R Level control* (Y page 152)
R Compass display *(Y page 212) 5
Distronic
* menu (distance display)
(Y page 128) 6
Message memory
menu20
(fault and
warning messages) (Y page 128) 7 Settings
menu (Ypage 129)
R Resetting to factory settings
(Y page 129)
R Selecting a submenu (Y page 129) 8
Additional functions*
menu
(Y page 136)
R Distance warning sys-
tem* (Y page 136)
R Tow-away protec-
tion* (Y page 136)
R Interior motion sen-
sor* (Y page 137) Function
9 Trip computer
menu (Ypage 137)
R Consumption statistics
(Y page 137)
R Range (Y page 138) a Telephone
menu (Ypage 138) This is what the displays look like when you
scroll through the menus.
The generic terms in the table overview are
intended to help you navigate through the
menus. The terms themselves are not always
displayed in the multi-function display.
Depending on the audio system fitted, the
Audio,
Navigation* and Telephonemenus
are slightly different. The examples given in
this Owner's Manual apply to vehicles equip-
ped with COMAND APS*.
19 Vehicles for the United Kingdom: the outside temperature is always displayed.
20 This menu is only visible if there is a display message available. Controls
* optional
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Engine compartment
223H
Environmental note
When topping up the oil, take care not to
spill any. Oil must not be allowed to escape
into the soil or waterways. You would oth-
erwise be damaging the environment. Coolant
G
Risk of injury
The cooling system is pressurised. There-
fore, only unscrew the cap once the engine
has cooled down. The coolant temperature
gauge must display less than 70 °C. You
could otherwise be scalded by escaping hot
coolant.
Coolant consists of water and antifreeze/cor-
rosion inhibitor. Only check the coolant level
when the vehicle is on a level surface and the
engine has cooled down. Checking the coolant level The expansion tank is located in the engine
compartment on the right-hand side of the
vehicle when viewed in the direction of travel.
1
Cap
2 Expansion tank
3 Marker bar
X Slowly turn cap 1by half a turn anti-clock-
wise to allow excess pressure to escape.
X Turn cap 1further anti-clockwise and
remove it.
There is sufficient coolant in expansion
tank 2if the coolant is level with the
marker bar 3in the filler neck when cold
or approximately 1.5 cm higher when hot. X
Top up the coolant if necessary.
X Replace cap 1and tighten all the way to
the stop.
You will find further information about coolant
in the "Technical data" section
(Y page 360). Windscreen washer system/head-
lamp cleaning system*
The washer fluid reservoir is located in the
engine compartment on the right when
viewed in the direction of travel. The head-
lamp cleaning system is also supplied from
the washer fluid reservoir. 1
Cap
2 Washer fluid reservoir Operation
* optional
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Display
messages 270 Display messages Possible cause/consequence Possible solution
B Top up coolant See
Owner's Manual The coolant level is too low. X
Top up the coolant, observing the warning
notes before doing so (Y page 223).
X Have the coolant system checked at a qualified
specialist workshop if the coolant needs top-
ping up more often than usual. . Left-hand Corner-
ing light
or
Right-hand Corner-
ing light The left-hand and/or right-hand cornering
lamp* is faulty. X
Replace the bulb (Y page 306).. Left-hand dipped
beam
or
Right-hand dipped
beam The right-hand or left-hand dipped-beam
headlamp is faulty. X
Halogen headlamp: replace the bulb
(Y page 306).
X Bi-xenon headlamp*: visit a qualified special-
ist workshop. . AUTO lights inop-
erative The light sensor is faulty. Constant head-
lamp mode is switched on. X
Switch the lights to manual control in the on-
board computer (Y page 132).
X Switch the lights on and off using the light
switch. . Trailer Left-hand
turn signal
or
Trailer Right-hand
turn signal There is a malfunction in the left- or right-
hand windowbag. X
Replace the bulb. Practical advi
ce
* optional
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Troubleshooting
291Problem Possible cause/consequence Suggested solutions
Vehicles with a petrol engine:
The engine is not running
smoothly and is misfiring. There is a malfunction in the
engine electronics or a mechani-
cal component of the engine con-
trol unit. X
Only depress the accelerator pedal slightly.
X Have the cause rectified immediately at a qualified specialist work-
shop.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it. A coolant temperature of over
120 °C is displayed. You also
hear a warning signal. The coolant level is too low. The
coolant is too hot and the engine
is no longer being cooled suffi-
ciently. X
Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 223). Observe the warning notes
as you do so and top up the coolant if necessary. If the coolant level is correct, the
radiator fan may be faulty. The
coolant is too hot and the engine
is no longer being cooled suffi-
ciently. X
If the coolant temperature is less than 120 °C, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving on
mountain roads and stop/start driving. The engine does not switch off. The ignition lock is faulty. X
Open the fuse box in the engine compartment ( Ypage 334).
X Remove fuse 120 using the fuse extractor.
The engine stops.
If you wish to start the engine again:
X Replace the fuse. Practical advice
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Service products and capacities
355Service products and capacities
Notes on service products and capaci-
ties
Service products are:
R fuels (e.g. petrol, diesel)
R lubricants (e.g. engine oil, transmission oil)
R coolant
R brake fluid
R windscreen washer fluid
Mercedes-Benz recommends that you only
use those products which have been tested
and specially approved by Mercedes-Benz for
your vehicle and are listed in the Mercedes-
Benz Owner's Manual in the relevant chapter
since:
R parts and service products are matched
R damage caused by the use of non-approved
service products is not covered by the war-
ranty
You can recognise service products approved
by Mercedes-Benz by the following inscrip-
tion 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 that
relate to a level of quality or a specification in
accordance with an MB Approval have not
necessarily been approved by Mercedes-
Benz.
You can obtain further information from any
Mercedes-Benz Service Centre. G
Risk of injury
When handling, storing and disposing of
any service products, please observe the
relevant regulations, as you could other-
wise endanger yourself and others.
Keep service products away from children.
To protect your health, do not allow service
products to come into contact with your
eyes or open wounds. See a doctor imme-
diately if any service product is swallowed. H
Environmental note
Dispose of service products in an environ-
mentally-responsible manner. Fuels
G
Risk of explosion
Fuel is highly flammable. Fire, naked flames
and smoking are therefore prohibited when
handling fuels.
Switch off the engine and the auxiliary heat-
ing* before refuelling. G
Risk of injury
Do not allow fuel to come into contact with
skin or clothing.
Allowing fuels to come into direct contact
with your skin or inhaling fuel vapours is
damaging to your health.
Tank capacity Total capacity 80 l
Of which reserve
fuel Approximately 13 l
!
Do not use petrol to refuel vehicles with a
diesel engine. Do not use diesel to refuel
vehicles with a petrol engine. Never mix
diesel with petrol. Even small amounts of
the wrong fuel result in damage to the
injection system. Damage resulting from Technical data
* optional
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