Page 262 of 399

262 OperationEngine compartment
Closing
Let the hood drop from a height of ap-
proximately 1 ft (30 cm).
The hood will lock audibly.
Check to make sure that the hood is
fully closed.
If you can raise the hood at a point
above the headlamps, then it is not
properly closed. Open it again and let it
drop with somewhat greater force.
Engine oil
The amount of oil your engine needs will
depend on a number of factors, including
driving style. Higher oil consumption can
occur when
the vehicle is new
the vehicle is driven frequently at high-
er engine speeds
Engine oil consumption checks should only
be made after the vehicle break-in period.
Checking engine oil level
When checking the oil level the vehicle
must
be parked on level ground
be at normal operating temperature
have been stationary for at least five
minutes with the engine turned off
Warning!
G
If you see flames or smoke coming from the
engine compartment, or if the coolant tem-
perature gauge indicates that the engine is
overheated, do not open the hood. Move
away from vehicle and do not open the hood
until the engine has cooled. If necessary,
call a fire department.Warning!
G
The engine is equipped with a transistorized
ignition system. Because of the high voltage
it is dangerous to touch any components (ig-
nition coils, spark plug sockets, diagnostic
socket) of the ignition system
with the engine running
while starting the engine
if ignition is "on" and the engine is
turned manually
Warning!
G
Be careful that you do not close the hood on
anyone.
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Page 264 of 399

264 OperationEngine compartmentOther display messages
If there is excessive engine oil with the en-
gine at normal operating temperature, the
following message will appear:Engine oil level Reduce oil level!
Have excess oil siphoned.
If the key is not turned to position 2 in the
starter switch:
Turn on ignition to see engine oil
level
!
Switch on the ignition.
If you see the message:
Observe waiting time
Wait five minutes before repeating
check procedure.If you see the message:
Engine oil level Not when engine on!
Turn off the engine. If engine is at nor-
mal operating temperature, wait five
minutes before checking oil. If the en-
gine is not yet at normal operating tem-
perature, you must wait 30 minutes
before checking oil.
See "Practical hints" (
page 299) if the
engine oil level indicator lights up in the
display while the engine is running.
More information on engine oil can be
found in the "Technical data"
(
page 368).
Transmission fluid level
The transmission fluid level does not need
to be checked. If you notice transmission
fluid loss or gear shifting malfunctions,
have an authorized Mercedes-Benz Center
check the transmission.Coolant level
The engine coolant is a mixture of water
and anticorrosion/antifreeze. To check
the coolant level, the vehicle must be
parked on level ground and the engine
must be cool.
The coolant expansion tank is located on
the driver’s side of the engine compart-
ment.
iIf you want to interrupt the checking
procedure, press the k or j but-
ton on the multifunction steering
wheel.
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Page 269 of 399

269 Operation
Tires and wheels
Life of tire
The service life of a tire is dependent upon
varying factors including but not limited to:
Driving style
Tire pressure
Distance driven
Direction of rotation
Unidirectional tires offer added advantag-
es, such as better aquaplaning perfor-
mance. To benefit, however, you must
ensure that the tires rotate in the direction
specified.
An arrow on the sidewall indicates the in-
tended direction of tire rotation.Checking tire inflation pressure
Regularly check your tire pressure at inter-
vals of no more than 14 days.
Correct the tire pressure only when tires
are cold.If the tires are warm you should only cor-
rect the tire pressure if it is too low for cur-
rent operating conditions.
A table on the fuel filler flap lists the spec-
ified tire inflation pressures for warm and
cold tires as well as for various operating
conditions.
Warning!
G
Tires and spare tire should be replaced after
six years, independently of the remaining
tread.!Keep unmounted tires in a cool, dry
place with as little exposure to light as
possible. Protect tires from contact
with oil, grease and gasoline.
Warning!
G
If the tire pressure repeatedly drops:
Check the tires for punctures from for-
eign objects
Check to see whether air is leaking from
the valves or from around the rim.
iThe pressures listed for light loads are
minimum values offering high driving
comfort.
Increased inflation pressures listed for
heavier loads may also be used for light
loads. These higher pressures produce
favorable handling characteristics. The
ride of the vehicle, however, will be
somewhat harder. Never exceed the
maximum values or inflate tires below
the minimum values listed in the fuel
filler flap.
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Page 318 of 399
318 Practical hintsWhat to do if …Display
Possible cause
Suggested solution
<
Front passenger seat
belt
Please fasten belt!
The display reminds you and your pas-
sengers to fasten seat belts.
Fasten the seat belts.
Driver‘s seat belt
Fasten seat belt!
The display reminds you and your pas-
sengers to fasten seat belts.
Fasten the seat belts.
_
Steering oil
Visit workshop!
The steering gear oil level is too low.
There is a danger of steering gear dam-
age.
Have the system checked by an autho-
rized Mercedes-Benz Center.
Warning!
G
If the level of steering gear oil in reservoir is
too low, the steering power assistance could
fail. Much greater effort will then be needed
to turn the steering wheel.
Do not add steering oil without checking the
steering system.
Do not drive the vehicle. Have the system
checked at your authorized Mercedes-Benz
Center as soon as possible.
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Page 386 of 399

386 IndexDoors
Message in display 323
Opening from inside vehicle 93
Opening from outside 87, 91
Downhill driving
Cruise control 195
Downshifting 152
Driving
General instructions 40
Problems 48
Safety systems 73
With Distronic* 206
Driving hints
SBC brake system 79
Driving safety systems
ABS 73
BAS 74
ESP 75, 376
SBC brake system 77
Driving systems 194
AIRMATIC DC 209
Cruise control 194
Distronic* 197
Driving safety systems 73
Vehicle level control 209
DTR see Distronic* 376Dual control
AIRMATIC DC 209
E
Easy-entry/exit
Message in display 310
Easy-entry/exit feature* 102
Activating 143
Interrupting movement 102, 143
Electrical fuses 352
Electrical system 363
Electronic Stability Program see ESP 75,
376
Emergency call system* 235
Emergency calls
Initiating an emergency call 237
With Tele Aid* 236
Emergency operation (Limp Home
Mode) 156
Emergency operations
Releasing trunk lid from inside 97
Remote door unlock 241
Sliding/pop-up roof* or panorama slid-
ing/pop-up roof* 331
Unlocking the vehicle 327Emergency tensioning device 377
Emergency tensioning device see
ETD 377
Ending
A call (telephone) 149
Engine 360
Starting 43
Starting with KEYLESS-GO* 44
Starting with the key 44
Turning off with the key 52
Engine number 376
Engine oil
Adding 263
Additives 368
Checking level 262
Display messages 299, 300
Filler neck 263
Messages in display 264, 300
Viscosity 376
ESP 75, 376
Switching off 76
Switching on 77
Warning lamp 288
ETD 377
Safety guidelines 59
Exterior lamp switch 112
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