Page 319 of 360

319 Technical data
Fuels, coolants, lubricants etc.
Gasoline additives
A major concern among engine manufac-
turers is carbon build-up caused by gaso-
line. Mercedes-Benz recommends only the
use of quality gasoline containing additives
that prevent the build up of carbon depos-
its.
After an extended period of using fuels
without such additives, carbon deposits
can build up especially on the intake valves
and in the combustion area, leading to en-
gine performance problems such as:
Warm-up hesitation
Unstable idle
Knocking/pinging
Misfire
Power loss
Do not blend other specific fuel additives
with fuel. This only results in unnecessary
cost and may be harmful to the engine op-
eration.Damage or malfunctions resulting from
poor fuel quality or from blending specific
fuel additives are not covered by the
Mercedes-Benz Limited Warranty.
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 -35°F (-37°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. You should have it replaced
every 3 years.
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
anticorrosion /antifreeze should be used
to bring it up to the proper level (have cool-
ing system checked for signs of leakage).
Please make sure that the mixture is in ac-
cordance with label instructions.
The water in the cooling system must meet
minimum requirements, which are usually
satisfied by normal drinking water. If you
Page 331 of 360

331 Index
A
ABS 25, 71, 325
LOW RANGE mode 72
Malfunction indicator lamp 240
Messages in display 247
Warning lamp 240
Accelerator position, automatic
transmission 139
Accident
In case of 49
Activating
Air conditioning (cooling) 157
Air recirculation mode 154
Anti-theft alarm system 79
Central locking (control system) 128
Defrost 154
Easy-entry/exit feature 128
ESP 78
Exterior headlamps 46
Exterior lamps 101
Exterior rear view mirror parking
position 148
Hazard warning flasher 104
Headlamps 46
High beams 103
Ignition 33Rear fog lamp 101
Rear window defroster 155
Seat heater, front 95
Seat heater, rear 96
Windshield wipers 47
Adding
Coolant 221
Engine oil 220
Additional turn signals 279
Adjusting 34
Air distribution 153
Air volume 153
Backrest tilt 36
Exterior rear view mirror 38
Head restraint height 36
Head restraint tilt 36
Inside rear view mirror 38
Instrument cluster illumination 108
Mirrors 38
Multicontour seat* 94
Seat cushion length 94
Seat cushion tilt 36
Seat fore and aft adjustment 35
Seat height 36
Seats 34
Steering column height 37Steering column length 37
Steering wheel 37
Air conditioning (cooling)
Turning off 157
Turning on 157
Air conditioning refrigerant 317
Air distribution
Adjusting 153
Air pressure see Tire inflation pressure
Air recirculation mode 154
Activating 154
Deactivating 154
Air volume
Adjusting 153
AIRBAG OFF indicator lamp 244
Airbags 55
BabySmart
TM airbag deactivation
system 325
BabySmartTM deactivation system 65
Front 59
Safety guidelines 58
Alarm
Audible 70, 80
Canceling 80
Visual 79
Page 335 of 360

335 Index
Standard display menu 116
Submenus 113, 115
TEL menu 132
Trip computer menu 130
Vehicle submenu 127
Convenience feature 159
Convenience submenu 128
Activating easy-entry/exit feature 128
Setting key dependency 129
Setting parking position for exterior
rear view mirror 130
Coolant 220, 319
Adding 221
Anticorrosion/antifreeze quantity 319
Capacities 316
Checking level 220
Messages in display 251, 252
Temperature 212
Temperature display 108
Warning lamp 251
Coolant level
Checking 215, 220
Crossing obstacles 208
Cruise control 162, 326
Canceling 163
Driving downhill 163Driving uphill 163
Fine adjustment 164
Saving current speed 163
Setting 164
Setting speed 164
Cruise control lever 162
Cup holder
Cleaning 235
In rear passenger footwell 179
Cup holders 178
In front passenger footwell 178
Next to the armrest 178
Customer Assistance Center (CAC) 325
D
Daytime running lamp mode 102
Setting 124
Deactivating
Air conditioning (cooling) 157
Air recirculation mode 154
Alarm 80
Anti-theft alarm system 80
Central locking (control system) 128
Cruise control 163
Defrost 154
ESP 76
Exterior lamps 101Exterior lamps delayed switch-off 125
Front fog lamps 125
Hazard warning flasher 104
Headlamps 51
Immobilizer 79
Interior lighting delayed switch-off 126
Rear window defroster 155
Seat heater, front 95
Seat heater, rear 96
Tow-away alarm 81
Deep water see Standing water 203
Defogging
Windshield 153
Defrosting 154
Delayed switch-off
Exterior lamps 125
Interior lighting 126
Dialing
A number (telephone) 133
Differential locks 143, 326
Switching off 146
Switching on 145
Difficulties
While driving see Problems while
driving 49
With starting 44