Page 259 of 434

258 OperationEngine compartment
Add engine oil as required. Be careful
not to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.
Screw filler cap1 back on filler neck.
For more information on engine oil, see the
“Technical data” section (
page 386) and
(
page 388).
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 automatic transmission. Oil level in the ABC system
The oil level in the ABC system does not
need to be checked. If there is visible oil
loss or if malfunction messages appear in
the display, have an authorized
Mercedes-Benz Center check the ABC
system.
Coolant
!Excess oil must be siphoned or drained
off. It could cause damage to the
engine and catalytic converter not
covered by the Mercedes-Benz Limited
Warranty.
Warning!
G
In order to avoid any possibly serious burns:
Use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system,
or if the coolant temperature gauge indi-
cates that the coolant is overheated.
Do not remove pressure cap on coolant
reservoir if engine temperature is above
158°F (70°C). Allow engine to cool
down before removing cap. The coolant
reservoir contains hot fluid and is under
pressure.
Using a rag, slowly open the cap approx-
imately
1/2 turn to relieve excess pres-
sure. If opened immediately, scalding
hot fluid and steam will be blown out un-
der pressure.
Do not spill antifreeze on hot engine
parts. Antifreeze contains ethylene gly-
col which may burn if it comes into con-
tact with hot engine parts.
Page 273 of 434

272 OperationMaintenanceService term exceeded
If you have exceeded the suggested ser-
vice term, you will see the following mes-
sage in the right multifunction display:Service A exceeded by xx days
Service A exceeded by xx miles (km)An acoustic signal will also sound.
The Mercedes-Benz Center will reset the
service indicator following a completed
service.
Calling up the service indicator
Switch on ignition.
The standard display of the control sys-
tem appears (
page 127).
Press button k or j on the
multifunction steering wheel until the
FSS indicator service symbol 9 or
´ appears in the left multifunction
display and the service deadline ap-
pears in the right multifunction display.
Resetting the service indicator
In the event that the service on your vehi-
cle is not carried out by an authorized
Mercedes-Benz Center, you can reset the
service indicator yourself.
Switch on ignition.
The standard display of the control sys-
tem appears (
page 127).
Press button k or j on the
multifunction steering wheel until the
FSS indicator service symbol 9 or
´ appears in the left multifunction
display and the service deadline ap-
pears in the right multifunction display.
Press the reset button for about four
seconds.
The following message appears in the
tachometer:Service Interval...
Reset:
R-Button 3 Sec.
iIf the battery supplying the vehicle’s
electrical consumers is disconnected,
the days of disconnection will not be in-
cluded in the count shown by the ser-
vice indicator. To arrive at the true
service deadline, you will need to sub-
tract these days from the days shown
in the service indicator.
Do not confuse the service indicator
with the engine oil level indicator :.
Page 293 of 434
292 Practical hintsWhat to do if …Text messagesLeft display
Right display
Possible cause
Possible solution
ABC
Drive carefully!
The capability of the ABC system is
restricted. This can impair handling.
Do not exceed a speed of 50 mph (80 km/h).
Visit an authorized Mercedes-Benz Center as
soon as possible.
The vehicle is losing oil.
Stop your vehicle as soon as it is safe to do so.
Stop,
car too low
The car is parked on an extremely
uneven surface.
Press the vehicle level control button to select
level 2 (
page 209).
ABC is malfunctioning.
Stop and press the ABC button to select a
higher vehicle level (
page 209).
Do not turn steering wheel too far to avoid
damaging the front fenders.
Listen for scraping noises.
Do not exceed a speed of 50 mph (80 km/h).
Visit an authorized Mercedes-Benz Center as
soon as possible.
Page 308 of 434
307 Practical hints
What to do if …
Left display
Right display
Possible cause
Suggested solution
:
USA only:Add 1 qt engine oil
at next refuelingCanada only:Add 1 l engine oil
at next refueling
The engine oil level is too low.
Add engine oil (
page 257) and check the
engine oil level (page 255).
Engine oil level
Stop, engine off!
There is no oil in the engine. There
is a danger of engine damage.
Carefully bring the vehicle to a halt as soon as
possible.
Turn off the engine.
Add engine oil (
page 257) and check the
engine oil level (page 255).
Engine oil level
Reduce oil level!
You have added too much engine
oil. There is a risk of damaging the
engine or the catalytic converter.
Have excess oil siphoned or drained off. Ob-
serve all legal requirements with respect to its
disposal.
Page 309 of 434

308 Practical hintsWhat to do if …When the message
Add 1 qt engine oil
at next refueling (Canada:
1l
) appears
while the engine is running and at
operating temperature, the engine oil level
has dropped to approximately the
minimum level.When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.
If no oil leaks are noted, continue to drive
to the nearest service station where the
engine oil should be topped to the required
level with an approved oil.
Left display
Right display
Possible cause
Suggested solution
:
Engine oil
Visit workshop!
It may be that there is water in the
engine oil.
Have the engine oil checked.
Engine oil level
Visit workshop!
The engine oil has dropped to a crit-
ical level.
Check the engine oil level (
page 255) and
add oil as required (
page 257).
If you must add engine oil frequently, have the
engine checked for possible leaks.
The measuring system is malfunc-
tioning.
Have the measuring system checked by an
authorized Mercedes-Benz Center.
!The engine oil level warnings should
not be ignored. Extended driving with
the symbol displayed could result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Page 392 of 434

391 Technical data
Fuels, coolants, lubricants, etc.
Coolants
The engine coolant is a mixture of water
and anticorrosion / antifreeze, which pro-
vides:
corrosion protection
freeze protection
boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximately -22°F (-30°C) and corro-
sion protection.
If the antifreeze mixture is effective to
-22°F (-30°C), the boiling point of the cool-
ant in the pressurized cooling system is
reached at approximately 266°F (130°C).
The coolant solution must be used year
round to provide the necessary corrosion
protection and increase in the boil-over
protection. Refer to Service Booklet for re-
placement interval.Coolant system design and coolant used
stipulate the replacement interval. The re-
placement interval published in the
Service Booklet is only applicable if
MB 325.0 anticorrosion/antifreeze solu-
tion or other Mercedes-Benz approved
products of equal specification (see Facto-
ry Approved Service Products pamphlet)
are used to renew the coolant concentra-
tion or bring it back up to the proper level.
To provide important corrosion protection,
the solution must be at least 45% anticor-
rosion/antifreeze (equivalent to freeze
protection to approx. - 22°F [-30°C]). If
you use a solution that is more than 55%
anticorrosion/antifreeze (freeze protec-
tion to approx. - 49°F [-45°C]), the engine
temperature will increase due to the lower
heat transfer capability of the solution.
Therefore, do not use more than this
amount of anticorrosion/antifreeze.If the coolant level is low, water and
MB 325.0 Anticorrosion /Antifreeze
should be used to bring it up to the proper
level (have cooling system checked for
signs of leakage). Please make sure the
mixture is in accordance with label instruc-
tions.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water. If you
are not sure about the water quality, con-
sult an authorized Mercedes-Benz Center.
Page 404 of 434

403 Index
A
ABC 207, 397
Messages in display 292
Oil level 258
Setting vehicle level 208
ABC switch 26
ABS 75, 76, 397
Messages in display 293
Warning lamp 23, 283
ABS/ESP
Warning lamp 23, 282
Accelerator position, automatic
transmission 162
Activating
Air circulation mode 175
Air conditioning (cooling) 180
Anti-theft alarm system 85
Central locking (control system) 146
Distance warning function* 204
Distronic* 200
Easy-entry/exit feature 148Electric air pump 355
ESP 80
Exterior lamps 117
Exterior rear view mirror parking
position 167
Hazard warning flasher 121
High beams 121
Ignition 31
Immobilizer 53
Parktronic* 212
Rear window defroster 177
Residual heat 178
Seat heating 110, 111
Seat ventilation* 113
Tow-away alarm 87
Windshield wipers 48
Active Body Control (ABC) switch 26
Active Body Control see ABC
Adding
Engine oil 257Adjusting
Air distribution 174
Air volume 173
Backrest tilt 35, 36
Exterior rear view mirrors 38
Head restraint height 36
Head restraint tilt 36
Interior rear view mirror 38
Lumbar support 108
Mirrors 38
Multicontour backrest* 109
Seat cushion depth 36
Seat cushion tilt 36
Seat height 36
Seat in the lumbar region 109
Seat in the shoulder region 109
Seats 34
Steering column in/out 37
Steering column up/down 37
Steering wheel 37
Air conditioner refrigerant 388
Page 407 of 434

406 IndexCentral locking
Automatic 105
Central locking switch 105
Switching on/off (control
system) 146
Unlocking from inside 105
Central locking switch 25
Central unlocking switch 25
Changing
Batteries (SmartKey with
KEYLESS-GO*) 329
Batteries (SmartKey) 328
SmartKey setting 91
SmartKey with KEYLESS-GO*
settings 96
Vehicle level 209
Charging
Vehicle batteries 361
CHECK ENGINE
Messages in display 303
CHECK ENGINE malfunction indicator
lamp 23, 285Checking
Coolant level 258
Oil level 252, 255
Tire inflate pressure 252
Vehicle lighting 252
Child safety
Airbags 60
Automatic child seat recognition 72
Infant and child restraint systems 58
Cigarette lighter 25, 219
Cleaning
Cup holder 279
Gear selector lever 279
Hard plastic trim items 279
Headlamps 168
Headliner 279
Leather upholstery 280
Plastic and rubber parts 280
Seat belts 279
Steering wheel 279
Upholstery 280
Windshield 47
Wood trims 280Clock 21
Closing
Hood 254
Power window with
KEYLESS-GO* 183
Retractable hardtop (SmartKey) 189
Retractable hardtop (switch) 186
Side windows 182
Sunshade 192
Trunk lid 102
Windows 181
Windows with KEYLESS-GO* 183
Cockpit 398
Collapsible tire 398
COMAND 25, 398
COMAND, radio and telephone 247
Combination switch 21, 47, 120, 121
Comfort driving
Transmission program mode 161
Consumer information 394