731 Technical data
Fuels, coolants, lubricants, etc.
The coolant solution must be used year
round to provide the necessary corrosion
protection and increase boil-over protec-
tion. Refer to Maintenance Booklet for re-
placement 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 are used to
renew the coolant concentration or bring it
back up to the proper level.
For information on other Mercedes-Benz
approved products of equal specification,
refer to the Factory Approved Service
Products pamphlet (USA only) or contact
an authorized Mercedes-Benz Center.
To provide important corrosion protection,
the solution must be at least 50% anticor-
rosion/antifreeze (equivalent to freeze
protection to approximately –35°F
[–37°C]).If you use a solution that is more than 55%
anticorrosion/antifreeze (freeze protec-
tion to approximately –49°F [–45°C]), the
engine temperature will increase due to
the lower heat transfer capability of the so-
lution. 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).
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.Anticorrosion/antifreeze
Your vehicle contains a number of alumi-
num parts. The use of aluminum compo-
nents in motor vehicle engines
necessitates that anticorrosion/antifreeze
coolant used in such engines be specifical-
ly formulated to protect the aluminum
parts. Failure to use such anticorrosion/
antifreeze coolant will result in a signifi-
cantly shortened service life.
Therefore, the following product is strongly
recommended for use in your vehicle:
Mercedes-Benz 325.0 Anticorrosion/
Antifreeze agent.
Before the start of the winter season (or
once a year in hot southern regions), you
should have the anticorrosion/antifreeze
concentration checked. The coolant is also
regularly checked each time you bring your
vehicle to an authorized Mercedes-Benz
Center for service.
749 Index
OCS 47
Self-test 51
Odometer 268
Oil
Filler neck 546
Oil level see Engine oil
One-touch gearshifting 411
Operating safety 19
Voice Control* 284
Ornamental moldings, Cleaning 588
Outside temperature indicator 29, 418
Overdue maintenance service 583
Overhead control panel 33
Override switch 63P
Paintwork, Cleaning 586
Panic alarm
Audible alarm and flashing exterior
lamps 65
Panic button 65
Panorama roof with power tilt/sliding
panel* 489
Opening/closing 490
Opening/closing in an
emergency 674
Synchronizing 492
Panorama roof with tilt/sliding panel*
Cleaning 593
Parcel net in front passenger
footwell 496
Park Assist* 448
Cleaning system sensors 590
Messages in display 622
System sensors 590
Warning indicators 29, 451
Parking 394, 530
Parking and standing lamps
Replacing bulbs 679Parking lamps
Messages in display 656
Parking position
Exterior rear view mirrors 364
Parktronic system* 444
Parktronic*
Cleaning system sensors 589
Malfunctioning 448
System sensors 589
Warning indicators 29, 446
Parts service 710
PASS AIR BAG OFF indicator lamp see
Front passenger front air bag off indica-
tor lamp
Passenger compartment 535
Passenger safety see Occupant safety
PCMCIA card
Ejecting (COMAND) 118
Loading (COMAND) 117
Pedals 527
Plastic parts, cleaning 593
POIs 196
Poly-V-belt drive 714
Layout 714
Potential problems associated with under-
inflated and overinflated tires 567
