2005 MERCEDES-BENZ SL55AMG engine oil

434 Technical dataFuels, coolants, lubricants, etc.Premium unleaded gasoline
Fuel requirements
Only use premium unleaded fuel:

The octane number (posted at the
pu mp ) m ust b e 91 m i n. It is an a ve ra ge
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.
!To maintain the engine’s durability and
performance, premium unleaded gaso-
line must be used. If premium unleaded
is not available and low octane fuel is
used, follow these precautions:

have the fuel tank only partially
filled with unleaded regular and fill
up with premium unleaded as soon
as possible


avoid full throttle driving and abrupt
acceleration


do not exceed an engine speed of
3000 rpm if the vehicle is loaded
with a light load such as two per-
sons and no luggage


do not exceed
2/3 of maximum ac-
celerator pedal position if the vehi-
cle is fully loaded or operating in
mountainous terrain

435 Technical data
Fuels, coolants, lubricants, 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 lossIn 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 specific fuel additives
with fuel. This only results in unnecessary
cost and may be harmful to the engine op-
eration.
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.

445 Index
A
ABC 220, 439
Messages in display 337
Oil level 275
Setting vehicle level 221
ABC switch 30
ABS 79, 80, 439
ABS control 80
Messages in display 338
Warning lamp 27, 325
ABS/ESP
Warning lamp 25, 324
Accelerator position, automatic
transmission 171
Accessory weight 305
Activating
Air circulation mode 187
Air conditioning (cooling) 192
Anti-theft alarm system 89
Central locking (control system) 156
Distance warning function* 217Distronic* 213
Easy-entry/exit feature 157
Electric air pump 398
ESP 84
Exterior lamps 123
Exterior rear view mirror parking
position 179
Hazard warning flasher 129
High beams 128
Ignition 36
Immobilizer 58
Parktronic* 226
Rear window defroster 189
Residual heat 190
Seat heating 117, 118
Seat ventilation* 119
Tow-away alarm 90
Windshield wipers 53
Active Body Control (ABC) switch 30
Active Body Control see ABC
Adding
Engine oil 274Adjusting
Air distribution 186
Air volume 185
Backrest tilt 40, 41
Exterior rear view mirrors 43
Head restraint height 41
Head restraint tilt 41
Interior rear view mirror 43
Lumbar support 115
Mirrors 43
Multicontour backrest* 116
Seat cushion depth 41
Seat cushion tilt 41
Seat height 41
Seat in the lumbar region 116
Seat in the shoulder region 116
Seats 39
Steering column in/out 42
Steering column up/down 42
Steering wheel 42

448 IndexCenter air vents 29
Center console
Lower part 30
Upper part 29
Centigrade
Setting temperature units 148
Central locking
Automatic 110
Central locking switch 111
Switching on/off (control
system) 156
Unlocking from inside 111
Central locking switch 29
Central unlocking switch 29
Changing
Batteries (SmartKey with
KEYLESS-GO*) 378
Batteries (SmartKey) 377
SmartKey setting 96
SmartKey with KEYLESS-GO*
settings 103
Vehicle level 222Charging
Vehicle batteries 404
CHECK ENGINE
Messages in display 351
CHECK ENGINE malfunction indicator
lamp 27, 327, 328
Checking
Coolant level 276
Oil level 269, 272
Tire inflate pressure 269
Vehicle lighting 269
Child safety
Airbags 64
Automatic child seat recognition 76
Infant and child restraint systems 62
Cigarette lighter 29, 233
Cleaning
Cup holder 320
Gear selector lever 320
Hard plastic trim items 320
Headlamps 178Headliner 320
Leather upholstery 321
Plastic and rubber parts 321
Seat belts 320
Steering wheel 320
Upholstery 321
Windshield 53
Wood trims 321
Cleaning tires 281
Clock 23
Closing
Hood 271
Power window with
KEYLESS-GO* 195
Retractable hardtop (SmartKey) 201
Retractable hardtop (switch) 198
Side windows 194, 195
Sunshade 204
Trunk lid 109
Windows 193
Windows with KEYLESS-GO* 195

452 IndexEmission control 265
Emission control label 418
Engine
Compartment 270
Starting with KEYLESS-GO* 49
Starting with the SmartKey 48
Turning off 58
Turning off with KEYLESS-GO* 59
Turning off with the SmartKey 58
Engine number 440
Engine oil 272, 433
Adding 274
Additives 433
Checking level 272
Consumption 272
Display messages 355
Filler neck 274
Messages in display 273
Engine oil level see Oil levelESP 79, 82, 440
Control switch 30
Switching off 83
Switching on 84
Synchronizing 341
Warning lamp 82
ESP/ABS warning lamp 25
ETD see Emergency Tensioning Device
Express-close front side windows 195
Express-open front side windows 194
F
Fahrenheit
Setting temperature units 148
Fastening the seat belts 45
Fine adjustment
Cruise control 208
First aid kit 372
Flat tire 388
Spare wheel 393
TIREFIT kit 388Flexible Service System (FSS), Canada
only 312, 441
Fluid level 275
Fog lamp, rear 127, 381
Replacing bulb 385
Fog lamps 127
Fog lamps, front 127
Replacing bulbs 381
Front airbags 68
Front lamps 381
Replacing bulbs 383
FSS (Flexible Service System, Canada
only) 312, 441
Fuel 267
Additives 435
Fuel reserve warning lamp 27, 330
Gasoline additives 435
Premium unleaded gasoline 268,
432, 434
Requirements 434
Fuel consumption statistics
After start 159
Since reset 160

457 Index
Multifunction display messages
ABC 337
ABS 338
Battery 345, 346
Brake pads 346
Brake system 350
CHECK ENGINE 351
Coolant 352
Coolant level 351, 353
Display malfunction 354
Doors 354
Easy-entry/exit feature 354
Fuel reserve tank 357
Hood 357
Luggage cover 371
Retractable hardtop 357
Roll bar 364
SBC brake system 347, 348
Seat belts 364
SmartKey 357
SmartKey with KEYLESS-GO* 359
Tele Aid 364
Telephone* 364Tires 365
Trunk 371
Washer fluid 371
Multifunction steering wheel 28, 135,
442
Buttons 135
N
Navigation system
Operating 142
Night security illumination 154
Normal occupant weight 306
O
Occupant distribution 306
Octane number 443
Odometer, main 25
Oil
Adding 274
Consumption 272
Filler neck 274
Oil level
Checking 269One-touch gearshifting 166
Canceling gear range limit 166
Downshifting 166
Upshifting 166
Opening
Doors from the inside 106
Fuel filler flap 267
Hood 270
Luggage cover 197
Retractable hardtop (SmartKey) 200
Retractable hardtop (switch) 197
Side windows 194
Storage compartment in the
armrest 230
Storage compartment in the center
console 230
Sunshade 204
Trunk from inside vehicle 108
Trunk lid 107
Windows 193