Page 9 of 473
ContentsFuels, coolants, lubricants, etc. ......... 444
Capacities .................................... 444
Engine oils .................................... 446
Engine oil additives ...................... 446
Air conditioning refrigerant .......... 446
Brake fluid .................................... 447
Premium unleaded gasoline ......... 447
Fuel requirements ........................ 448
Gasoline additives ........................ 448
Coolants ....................................... 449
Windshield and headlamp
washer system ............................. 452Index................................................. 453
Page 447 of 473

446 Technical dataFuels, coolants, lubricants, etc.Engine oils
Engine oils are specifically tested for their
suitability in our engines and durability for
our service intervals. Therefore, only use
approved engine oils and oil filters re-
quired for vehicles with Maintenance
System (U.S. vehicles) or FSS (Canada
vehicles). For a listing of approved engine
oils and oil filters, refer to the Factory Ap-
proved Service Products pamphlet, or con-
tact an authorized Mercedes-Benz Center.
Engine oil additives
Do not blend oil additives with engine oil.
They may damage the engine.
Damage or malfunctions resulting from
blending oil additives are not covered by
the Mercedes-Benz Limited Warranty.Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil are used in the air condition-
er system.
Never use R-12 (CFC) or mineral-based
lubricating oil. Otherwise damage to the
system will occur.
Model
Capacity
Fuels, coolants, lubricants, etc.
Air conditioning system
R-134a refrigerant and special PAG lu-
bricant oil (never R-12)
Hydraulic system for retractable hardtop
0.42 US qt (0.4 l)
MB Hydraulic Fluid
Windshield washer and headlamp cleaning system
7.4 US qt (7 l)
MB Windshield Washer Concentrate
1
1Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing or MB Windshield Washer Concentrate “S” and commercially available pre-
mixed windshield washer solvent/antifreeze for temperatures below freezing. Follow suggested mixing ratios (page 452).
!
Using engine oils and oil filters of specifica-
tion other than those expressly required for the
Maintenance System (U.S. vehicles) or FSS
(Canada vehicles), or changing oil and oil filter at
change intervals longer than those called for by
the Maintenance System (U.S. vehicles) or FSS
(Canada vehicles) will result in engine or emis-
sion control system damage not covered by the
Mercedes-Benz Limited Warranty.
Please follow Maintenance System
(U.S. vehicles) or FSS (Canada vehicles) recom-
mendations for scheduled oil changes. Failure to
do so could result in engine or emission control
system damage not covered by the
Mercedes-Benz Limited Warranty.
Page 449 of 473

448 Technical dataFuels, coolants, lubricants, etc.Fuel requirements
Only use premium unleaded fuel:
The octane number (posted at the
pump) must be 91 min. It is an average
of both the Research (R) octane num-
ber and the Motor (M) octane number:
(R+M)/2). This is also known as the
ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not exceed
10%; MTBE must not exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains
10% ethanol and 90% unleaded gasoline,
can be used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, 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 engine performance problems such as:
Warm-up hesitation
Unstable idle
Knocking/pinging
Misfire
Power loss
Page 450 of 473

449 Technical data
Fuels, coolants, lubricants, etc.
In areas where carbon deposits may be en-
countered due to lack of availability of gas-
olines which contain these additives,
Mercedes-Benz recommends the use of
additives approved by us for use on
Mercedes-Benz vehicles. Refer to Factory
Approved Service Products pamphlet for a
listing of approved product(s). Follow di-
rections on product label.
Do not blend other fuel additives with fuel.
This only results in unnecessary cost and
may be harmful to the engine operation.
Damage or malfunction resulting from
poor fuel quality or from blending addition-
al fuel additives other than those tested
and approved by us for use on
Mercedes-Benz vehicles listed in the
Factory Approved Service Products pam-
phlet 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 -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.
!
Add premixed coolant solution only. Adding
water and MB 325.0 Anticorrosion/Antifreeze
separately from each other, could cause engine
damage not covered by the Mercedes-Benz
Limited Warranty.
Page 459 of 473

458 IndexF
Filler neck, Engine oil 278, 279
First aid kit 388
Flat tire 405
Preparing the vehicle 405
Spare wheel 388, 405
Flexible Service System see FSS
Fluids
Automatic climate control
system 444
Automatic transmission 279, 444
Brake system 272, 444, 447
Capacities 444
Engine coolant 280, 444, 449
Engine oil 275, 444, 446
Power steering 444
Retractable hardtop, Hydraulics 444
Windshield washer and headlamp
cleaning system 444
Fog lamps 131
Messages in the multifunction
display 380, 382
Replacing bulbs 398
Front air bags 71
Front lamps see HeadlampsFront passenger front air bag
Messages in the multifunction
display 356–359
Front passenger front air bag off indicator
lamp 76, 345
FSS (Canada only) 319
Fuel 271
Additives 448
Capacity, Fuel tank 444
Consumption statistics 163
Filler flap 271
Fuel reserve warning lamp 29, 339
Gasoline additives 448
Gauge 29
Premium unleaded gasoline 272,
445, 447
Refueling 271
Requirements 448
Fuel filler flap
Opening 271
Fuels, coolants, lubricants etc.
Capacities 444
Functions (control system) 141
Fuse chart see Vehicle tool kit
Fuses 424G
Garage door opener 251
Gasoline see Fuel
GAWR 312
Gear range
Automatic transmission 172
Canceling limit 175
Indicator 29
Limiting 172
Shifting into optimal 175
Gear selector lever 32, 168
Cleaning 328
Lock 52
Position 168, 170
Global locking/unlocking see Key
Glove box 233
Good visibility 180
Gross Axle Weight Rating see GAWR
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GVW 312
GVWR 313