2005 MERCEDES-BENZ CLK500 CABRIOLET fuel additives

ContentsTechnical data.................................. 439
Parts service ...................................... 440
Warranty coverage ............................. 441
Loss of Service and Warranty
Information Booklet...................... 441
Identification labels............................ 442
Layout of poly-V-belt drive ................. 443
CLK 320/CLK 500/CLK 55 AMG . 443
Engine ................................................ 444
Rims and tires .................................... 445
Same size tires ............................. 446
Mixed size tires ............................ 447
Minispare wheel ........................... 449
Electrical system................................ 450
Main dimensions................................ 451
Weights .............................................. 452Fuels, coolants, lubricants, etc. ......... 453
Capacities .................................... 453
Engine oils.................................... 455
Engine oil additives ...................... 455
Air conditioning refrigerant .......... 456
Brake fluid .................................... 456
Premium unleaded gasoline ......... 456
Fuel requirements ........................ 457
Gasoline additives ........................ 457
Coolants....................................... 458
Windshield washer system and
headlamp cleaning system* ......... 460
Technical terms............................... 461Index................................................. 467

455 Technical data
Fuels, 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
contact an authorized Mercedes-Benz
Center.
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 of oil and oil filter at change inter-
vals longer than those called for by the
Maintenance System (U.S. vehicles) or
FSS (Canada vehicles) will result in engine
damage not covered by the
Mercedes-Benz Limited Warranty. Please follow Maintenance System
(U.S. vehicles) or FSS (Canada vehicles)
recommendations for scheduled oil
changes. Failure to do so will result in
engine damage not covered by the
Mercedes-Benz Limited Warranty.
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.

457 Technical data
Fuels, 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 not to 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 en-
gine 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 any specific 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.

476 IndexF
Fahrenheit
Setting temperature units 145
Fastening the seat belts 43
Fine adjustment
Cruise control 259
First aid kit 391
Flat tire 422
Lowering the vehicle 426
Minispare wheel 394
Mounting the Minispare wheel 423
Preparing the vehicle 422
Flexible Service System (Canada vehicles)
see Maintenance service system
Floormates*
Installing 275
Removing 275
Floormats* 275
Fog lamp, rear 125, 415
Fog lamps
Replacing bulbs 414
Fog lamps, front
Messages in display 383
Replacing bulbs 415
Switching on 125
Front air bags 65Front lamps
Messages in display 383–385
Replacing bulbs 414, 416
Switching on 122
Front passenger front
air bag off indicator lamp 79, 361
Front seat head restraints
Installing 114
Power seat 114
Removing 114
Front seats
Seat heating* 117
Ventilation* 118
FSS (Canada vehicles) see
Maintenance service system
Fuel 303
Additives 457
Fuel reserve warning lamp 359
Gasoline additives 457
Premium
unleaded gasoline 303, 454, 456
Requirements 457
Reserve warning 25
Technical data 453
Fuel additives 457Fuel cap
Message in display 356
Fuel consumption statistics
After start 158
Since last reset 159
Fuel filler flap 302
Locking 302
Opening 399
Unlocking 302
Fuel requirements 457
Fuel reserve tank
Message in display 382
Fuel tank
Capacity 454
Filler flap 302
Fuels, coolants, lubricants etc.
Capacities 453
Functions (control system) 134, 137
Resetting 143
Fuse box 437
Fuse chart 436
Fuse extractor 436

477 Index
Fuses 436
Aids for changing fuses 436
Auxiliary fuse box in trunk 438
Fuse box in engine compartment 437
Fuse box
in passenger compartment 437
Fuse chart 436
Fuse extractor 436
Spare fuses 436G
Garage door opener 29, 284
Gasoline see Fuel
Gasoline additives 457
GAWR 336
Gear range 462
Automatic transmission 166
Limiting 166
Shifting into optimal 165
Gear range limit
Canceling 165
Gear selector lever 25, 163, 400
Cleaning 351
Position 25
Position
(Automatic transmission) 163, 167
Unlocking manually 400
Global
Locking 96
Locking with KEYLESS-GO* 102
Unlocking 96
Unlocking with KEYLESS-GO* 101Global Positioning System (GPS) 462
Glove box 23, 269
Closing 269
Opening 269
Good visibility 176
GPS 462
Gross Axle Weight Rating see GAWR
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GVW 336
GVWR 336

491 Index
Storing
Minispare wheel 395
station (satellite radio) 217
Storing (Memory function)
Positions into memory 120
Storing tires 315
Submenus
Convenience 156
For settings 135
In control system 137
Instrument cluster 145, 147
Lighting 151
Resetting functions
in Control system 143
Selecting 143
Settings menu 143
Vehicle 155
Substitute lamps
Bulbs 414
Sun visors 178
Supplemental Restraint System see SRSSwitching off
Audio system 204
Automatic central locking
(control system) 155
Engine 56
ESP 87
Hazard warning flasher 128
Headlamps 56
Parktronic system* 263
Switching on
Audio system 204
Automatic central locking
(control system) 155
ESP 88
Front fog lamps 125
Front lamps 122
Hazard warning flasher 128
Headlamps 50
High beams 126
Parking lamps 122
Parktronic system* 263
Rear fog lamp 125
Windshield wipers 52
Synchronizing
Power windows 243T
Tachometer 25, 132
Overspeed range 132
Tail lamps
Cleaning 348
Replacing bulbs 415, 420
Tar stains 346
Technical data 456
Brake fluid 456
Coolant 453
Coolants 458
Electrical system 450
Engine 444
Engine oil 455
Engine oil additives 455
Fuel requirements 457
Fuels 453
Gasoline additives 457
Lubricants 453
Main dimensions 451
Premium unleaded gasoline 456
Rims and tires 445
Weights 452
Windshield and headlamp
washer* system 454, 460