363 Operation
Maintenance
Resetting the maintenance service indicator
In the event that the maintenance service
on your vehicle is not carried out by an
authorized Mercedes-Benz Center, you can
have the maintenance service indicator
reset. The automotive maintenance facility
carrying out the maintenance service will
find the information for resetting the
maintenance service indicator in the
maintenance-relevant information for your
vehicle. Such information is available from
either your authorized Mercedes-Benz
Center or directly from Mercedes-Benz.
iIf the battery is disconnected, the days
of disconnection will not be included in
the count shown by the maintenance
service indicator. To arrive at the true
maintenance service deadline, you will
need to subtract these days from the
days shown in the maintenance service
indicator message or maintenance ser-
vice indicator display.
Do not confuse the maintenance
service indicator with the engine oil
level indicator:.
iIf the maintenance service indicator
was inadvertently reset, have an
authorized Mercedes-Benz Center
correct it.
Only reset if the proper maintenance
service has been performed. Resetting
the system without performing the
proper service as called for by the
maintenance service indicator will
result in engine damage and/or other
vehicle damage not covered by the
Mercedes-Benz Limited Warranty.
401 Practical hints
What to do if …?
Display symbol
Display message
Possible cause/consequence
Possible solution
:
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 325) and check
the engine oil level (
page 323).
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 oil siphoned or drained off. Ob-
serve all legal requirements with re-
spect to its disposal.
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 325) and check
the engine oil level (
page 323).
402 Practical hintsWhat to do if …?When the message
Add 1 qt. engine oil
at next refueling (Canada:
1 liter
) ap-
pears 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.
Visually check for oil leaks. If no obvious oil
leaks are noted, drive to the nearest ser-
vice station where the engine oil should be
topped to the required level with an
approved oil specified in the Factory
Approved Service Products pamphlet.
Display symbol
Display message
Possible cause/consequence
Possible solution
:
Engine oil level
Visit workshop
The engine oil has dropped to a critical
level.
Check the engine oil level
(page 323) and add oil as required
(page 325).
If you must add engine oil frequently,
have the engine checked for possible
leaks.
The measuring system is malfunctioning.
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.
410 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause/consequence
Possible solution
K
Lock top
The soft top is not properly locked.
Lock the soft top again (
page 259).
Top being opened
The soft top is not completely open or
closed. The hydraulics are losing pres-
sure.
Open or close the soft top all the way.
Top
Visit workshop
The soft top is malfunctioning.
Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Start engine to
operate top
The on-board voltage is too low.
Start the engine.
Top locked
as vehicle is moving
You have attempted to open or close the
soft top while driving.
Pull over to the side of the road and re-
peat soft top operation while the vehi-
cle is stationary.
_
Steering oil
Visit workshop
The steering gear oil level is too low. There
is a danger of steering gear damage.
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 an authorized Mercedes-Benz
Center as soon as possible.
484 Technical dataFuels, coolants, lubricants, etc.Coolants
The engine coolant is a mixture of water
and anticorrosion / antifreeze, which
provides:
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
corrosion protection.
If the antifreeze mixture is effective
to -22°F (-30°C), the boiling point of the
coolant in the pressurized cooling system
is reached at approx. 266°F (130°C).The coolant solution must be used
year-round to provide the necessary corro-
sion protection and increase boil-over pro-
tection. 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 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% anti-
corrosion/antifreeze (freeze protection to
approx. -49°F [-45°C]), the engine temper-
ature will increase due to the lower heat
transfer capability of the solution. There-
fore, 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 the mixture is in accor-
dance 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,
consult an authorized Mercedes-Benz
Center.
488 Technical termsCruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.
Curb weight
(
page 355)
DOT
(Department O
f Transportation)
(
page 355)
Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced.
Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.ESP
®(Electronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.
ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the sys-
tem's threshold to tighten the seat
belts.
->SRS
FSS (Canada vehicles)
(F
lexible S
ervice S
ystem)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. FSS evaluates en-
gine temperature, oil level, vehicle
speed, engine speed, distance driven
and the time elapsed since your last
maintenance service, and calls for the
next maintenance service accordingly.GAWR
(G
ross A
xle W
eight R
ating)
(
page 355)
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the gear selector le-
ver.
GPS
(Global P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs CD digital maps for
navigation.
GVW
(G
ross V
ehicle W
eight)
(
page 355)
GVWR
(Gross V
ehicle W
eight R
ating)
(
page 356)
498 IndexEngine coolant see Coolant
Engine oil 322, 481
Adding 325, 481
Additives 481
Changing 325, 481
Checking level 320
Checking level (Dipstick) 324
Consumption 322
Filler cap 326
Filler neck 326
Messages in display 323, 401
Viscosity 488
Engine oil level 320, 323
ESP
®
25, 89, 488
Messages in display 387–388
Warning lamp 378
ETD 72, 488
Safety guidelines 66
Exterior rear view mirrors 43, 181
Parking position 161, 183F
Filler cap, Engine oil 326
Filler neck, Engine oil 326
First aid kit 413
Flat tire 446
Jacking up the vehicle 447
Lowering the vehicle 451
Minispare wheel 416
Mounting the spare wheel 447
Preparing the vehicle 446
Flexible Service System see FSS
(Canada vehicles)
Floormats* 287
Fluids
Brake fluid 320, 481
Engine coolant 327, 484
Engine oil 322, 481
Transmission fluid 326
Windshield washer and headlamp
cleaning* system 329, 486
Fog lamps 131, 439
Messages in display 405
Replacing bulbs 438, 439, 443
Front air bags 67
Front lamps see HeadlampsFront passenger front air bag 63, 67
Messages in display 389–392
Front passenger front
air bag off indicator lamp 27, 81, 381
FSS (Canada vehicles) 361, 488
Fuel 319, 479
Additives 483
Automatic transmission fluid 479
Brake fluid 479
Capacities 479
Capacities, Fuel tank 480
Engine coolant 480
Engine oil 479
Filling the tank 318
Fuel display 25
Fuel filler flap and cap 318, 421
Fuel filler flap and cap, Multifunction
display messages 400
Fuel reserve warning lamp 379
Power steering fluid 479
Premium
unleaded gasoline 319, 480, 482
Requirements, Octane rating 482
Technical data 479
Fuel cap
Message in display 376
504 IndexO
Occupant Classification System see OCS
Occupant distribution 356
Occupant safety 62
Active head restraints 73
Air bags 63
Children and air bags 64
Children in the vehicle 75
ETD 72
Fastening the seat belts 45
Front air bags 67
Front passenger front
air bag off indicator lamp 81, 381
Head-thorax air bags 68
Infant and child restraint systems 75
LATCH-type child seat anchors 83
OCS 78
Rear side-impact air bags* 68
Roll bars 74
Safety guidelines,
Seat belts, Air bag, ETD 66
Seat belts 45, 69
SRS 62
OCS 78, 490
Self-test 82
Odometer 25Oil level see Engine oil, checking level
Oil see Engine oil
One-touch gearshifting 173
Operating safety 209
Operating the vehicle
outside the USA or Canada 13
Ornamental moldings, cleaning 368
Outside temperature see Displays
Overdue maintenance service 362
Overhead control panel 29
Overspeed range, Engine 490
P
Paintwork, Cleaning 365
Panic alarm 86
Parcel net
Front passenger footwell 280
Parking 57, 310
On hills 57, 310
Over combustible materials 57, 310
Parking assist* see
Parktronic system* (Canada only)
Parking brake 50, 57
Message in display 396
Warning sounds 51Parking lamps 127
Message in display 406
Replacing bulbs 438, 439, 441, 442
Parking position
Exterior
rear view mirrors 126, 161, 183
Parktronic system* (Canada only) 269
Cleaning system sensors 369
Malfunction 272
Range of the sensors 270
Switching on/off 272
Warning indicators 271
Warning sounds 271, 272
Parts service 466
PASS AIR BAG OFF indicator lamp see
Front passenger front
air bag off indicator lamp
Passenger compartment 314
Electrical outlet 287
Interior lighting 134
Interior rear view mirror 43
Main fuse box 463
Parcel net in
front passenger footwell 280
Storage bags,
rear side of the front seats 280