Page 329 of 409
328 Practical hintsWhat to do if ...Left display
Right display
Possible cause/
consequence
Possible solution
±
Engine
Service
There may be a malfunction in
the
fuel injection system
ignition system
exhaust system
fuel system
Have the engine checked by an authorized
Mercedes-Benz Center immediately.
:
Engine oil pressure
Visit
workshop
There is no oil in the engine.
There is a danger of engine
damage.
Stop your vehicle immediately in a safe location.
Switch off the engine.
Notify an authorized Mercedes-Benz Center
immediately.
!The engine oil level warning should not
be ignored. Extended driving with the
symbol displayed could result in seri-
ous engine damage that is not covered
by the Mercedes-Benz Limited
Warranty.
Page 382 of 409

381 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 Maintenance Booklet
for replacement interval.Coolant system design and coolant used
determine the replacement interval. The
replacement interval published in the
Maintenance Booklet is only applicable if
MB 325.0 anticorrosion/antifreeze solu-
tion or other Mercedes-Benz approved
products of equal specification (see
Factory Approved Service Products pam-
phlet) are used to renew the coolant con-
centration 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 approximately
- 22°F [-30°C]). If you use a solution that is
more than 55% anticorrosion/antifreeze
(freeze protection to approximately
- 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 anticorro-
sion/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 instructions.
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 397 of 409

396 IndexEngine oil 247, 378
Adding 249, 377
Additives 247, 378
Checking level 248
Consumption 247
Filler neck 248
Message in the multifunction
display 328
Recommended engine oils and oil
filter 378
Temperature 29
Oil temperature indicator 303
Viscosity 386
ESP
®
79, 81, 386
Resetting 311
Warning lamp 81, 298
Messages in the multifunction
display 310
ETD 72, 386
Safety guidelines 67
Exterior lamp switch 52, 105
Exterior rear view mirrors 44F
Filler neck, Engine oil 248
First aid kit 342
Flat tire 351
Preparing the vehicle 351
TIREFIT kit 351
Floormats 223
Fluids
Automatic transmission fluid 249,
377
Brake fluid 242, 377, 379
Capacities 377
Engine coolant 250, 377, 381
Engine oil 247, 377, 378
Power steering fluid 377
Windshield washer and headlamp
cleaning system 252, 377
Fog lamps 108, 349
Message in the multifunction
display 330
Front airbags 68
Front lamps see HeadlampsFuel 241
Additives 380
Capacity, Fuel tank 377
Consumption statistics 138
Filler flap 241
Filling the tank 241
Fuel reserve warning lamp 29, 303
Gauge 29
Premium unleaded gasoline 241,
379
Requirements, Octane rating 377,
380
Fuel cap
Messages in the multifunction
display 301, 329
Fuel filler flap
Locking/unlocking 241
Fuel reserve
Message in the multifunction
display 329
Fuel reserve warning lamp 29
Fuel system
Message in the multifunction
display 329
Page 401 of 409

400 IndexMultifunction display messages
ABS 309
ACL malfunction 312
Airbrake 315
Battery, Vehicle 315
Brake pads 318
Coolant 323
Cruise control 310
Differential 326
Display 327
Doors 327
Electrohydraulic brake system 319
Engine 328
Engine oil 328
ESP
®
310
Fuel system 329
Hood 329
Lamps 330
Parking brake 322
Reserve fuel 329
Seat belt 334
Service brake 322
SmartKey 329
Telephone 329
Tires 335
Trunk lid 341Washer fluid 341
Multifunction steering wheel 30, 118,
387
Button operation 118
Gearshift control, Automatic
transmission 174
N
Net, parcel 201
New vehicle break-in 230
Night security illumination 108, 134
Normal occupant weight 282
Number, Vehicle Identification
(VIN) 368, 389
O
Occupant distribution 282
Occupant safety
Airbags 63
BabySmart
TM airbag deactivation
system 75
Children and airbags 64
Children in the vehicle 72
Fastening the seat belts 46
Infant and child restraint systems 73
Seat belts 69
Octane number 388Odometer
Main 117
Trip 115
Oil level see Engine oil, Checking level
Oil see Engine oil
One-touch gearshifting, Automatic
transmission 168
Operating safety
Audio system 143
Vehicle 20
Operator’s manual 342
Outside temperature see Displays
Overdue maintenance service 290
Overhead control panel 33
Overspeed range, Engine 115, 388
P
Panic alarm 78
Parcel net in trunk 201
Parking 57, 234
Parking brake 32
Engaging 57
Message in the multifunction
display 322
Releasing 50