321 Operation
Vehicle care
Vehicle care
Cleaning and care of the vehicle
While in operation, even while parked, your
vehicle is subjected to varying external in-
fluences which, if gone unchecked, can at-
tack the paintwork as well as the
underbody and cause lasting damage.Such damage is caused not only by ex-
treme and varying climatic conditions, but
also by:
Air pollution
Road salt
Tar
Gravel and stone chipping
To avoid paint damage, you should imme-
diately remove:
Grease and oil
Fuel
Coolant
Brake fluid
Bird droppings
Insects
Tree resins, etc.
Frequent washing reduces and/or elimi-
nates the aggressiveness and potency of
the above adverse influences.More frequent washings are necessary to
deal with unfavorable conditions:
near the ocean
in industrial areas (smoke, exhaust
emissions)
during winter operation
You should check your vehicle from time to
time for stone chipping or other damage.
Any damage should be repaired as soon as
possible to prevent corrosion.
In doing so, do not neglect the underbody
of the vehicle. A prerequisite for a thor-
ough check is a washing of the underbody
followed by a thorough inspection. Dam-
aged areas need to be re-undercoated.
Your vehicle has been treated at the facto-
ry with a wax-base rustproofing in the body
cavities which will last for the lifetime of
the vehicle. Post-production treatment is
neither necessary nor recommended by
Mercedes-Benz because of the possibility
of incompatibility between materials used
in the production process and others ap-
plied later.
Warning!
G
Many cleaning products can be hazardous.
Some are poisonous, others are flammable.
Always follow the instructions on the partic-
ular container. Always open your vehicle’s
doors or windows when cleaning the inside.
Never use fluids or solvents that are not de-
signed for cleaning your vehicle.
Always lock away cleaning products and
keep them out of reach of children.
369 Practical hints
What to do if …
Left display
Right display
Possible cause/consequence
Possible solution
J
Door open
You are attempting to drive with
one or more doors open.
Close the doors.
_
Entry position
Do not drive
The steering wheel has not yet
moved into its preset driving posi-
tion.
Wait until the steering wheel has moved to its
driving positions.
The message disappears.
N
USA only:Add 1 qt. engine oil
at next refuelingCanada only:Add 1 liter
engine oil
at next refueling
The engine oil level is too low.
Add engine oil (
page 276) and check the
engine oil level (page 274).
Engine oil level
Stop, put 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 276) and check the
engine oil level (page 274).
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.
370 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 specified in the
Factory Approved Service Products pam-
phlet.
Left display
Right display
Possible cause/consequence
Possible solution
N
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 274) and
add oil as required (
page 276).
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.
393 Practical hints
Replacing bulbs
Notes on bulb replacement
Only use 12-volt bulbs of the same type
and with the specified watt rating.
Switch the lights off before changing a
bulb to prevent short circuits.
Always use a clean lint-free cloth when
handling bulbs.
Your hands should be dry and free of oil
and grease.
If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Center:
the additional turn signals in the exteri-
or rear view mirrors
the high mounted brake lamp
the brake lamps
the parking lamps and the side marker
lamps in the tail lamp unit
the rear fog lamps
the low beam (Xenon or Bi-Xenon*)
lamps
the front fog lamps
the front side marker lamps
Warning!
G
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Keep bulbs out of reach of children.
Halogen lamps contain pressurized gas. A
bulb can explode if you:
touch or move it when hot
drop the bulb
scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
iHave the headlamp adjustment
checked regularly.
450 Technical dataFuels, 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
stipulate the replacement interval. The re-
placement 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 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.
466 IndexEngine oil 274, 447
Adding 276, 445
Additives 447
Checking level 274
Consumption 274
Filler neck 276
Messages in the multifunction
display 275, 369
Recommended engine oils and
filters 447
ESP
®
82, 85, 455
Switch 30
Switching off 86
Switching on 87
Synchronizing 354
Warning lamp 25, 332
ETD 74, 455
Safety guidelines 69
Warning and indictor lamps 341
Exterior lamp switch 123
Exterior rear view mirrors 44, 177
F
Filler neck, Engine oil 276
First aid kit 383Flat tire 399
Preparing the vehicle 399
Spare wheel 383, 404
TIREFIT kit 384, 399
Flexible Service System see FSS
Fluids
Automatic climate control
system 445
Automatic transmission 277, 445
Brake system 271, 445, 447
Capacities 445
Engine coolant 278, 445, 450
Engine oil 274, 445, 447
Power steering 445
Retractable hardtop, Hydraulics 445
Windshield washer and headlamp
cleaning system 445
Fog lamps 126
Messages in the multifunction
display 375, 377
Replacing bulbs 392
Front airbags 70
Front lamps see Headlamps
Front passenger front airbag off indicator
lamp 78
FSS (Canada only) 318, 455Fuel 269
Additives 449
Capacity, Fuel tank 445
Consumption statistics 157
Filler flap 269
Fuel reserve warning lamp 27, 338
Gasoline additives 449
Gauge 27
Premium unleaded gasoline 270,
446, 448
Refuelling 269
Requirements 448
Fuel cap
Messages in the multifunction
display 371
Fuels, coolants, lubricants etc.
Capacities 445
Functions (control system) 137
Fuse chart see Vehicle tool kit
Fuses 425
G
Garage door opener 247
Gasoline see Fuel
GAWR 311, 455
470 IndexMassage function 117
Maximum cooling MAXCOOL 186
Maximum inflation pressure 311
Maximum load rating 311, 456
Maximum loaded vehicle weight 311,
456
Maximum tire inflation pressure 456
Memory function 456
Menus 137
AUDIO 141
Distronic* 143
NAV 143
Standard display 140
TEL* 159
Trip computer 157
Vehicle status message memory 144
Menus see Control system menus
Microphone
Hands-free microphone 31
Miles/kilometers in speedometer 149
Minimum distance (Parktronic*) 225
Mirrors 44, 177
Adjusting interior rear view mirror 44
Exterior rear view mirrors 44
Misfiring 56
MOE tires see MOExtended system*MOExtended system* 411
MOExtended tires 440
MON 270, 456
Mph or km/h in speedometer 149
Multifunction display 135, 456
Displaying gear range 167
Left display field 25
Right display field 27
Selecting language 150
Standard display 135
Multifunction display messages
ABC 347
ABS 349
Battery 359, 360
Brake pads 360
Brake system 364
CHECK ENGINE 365
Coolant 366
Coolant level 365, 368
Display malfunction 368
Doors 369
Easy-entry/exit feature 369
Electro-hydraulic brake system 361,
362
Hood 372
Luggage cover 382Retractable hardtop 371
Roll bar 379
Seat belts 379
SmartKey 372
SmartKey with KEYLESS-GO* 373
Tele Aid 379
Telephone* 379
Tires 380
Trunk 382
Washer fluid 382
Multifunction steering wheel 28, 136,
456
Buttons 136
N
Navigation system
Operating 143
Night security illumination 154
Normal occupant weight 311, 456
O
Occupant distribution 311
Octane number 458
Odometer, main 25
Oil
Adding 276
Consumption 274