Page 467 of 498

466 Technical dataFuels, coolants, lubricants etc.In areas where carbon deposits may be
encountered due to lack of availability of
gasolines 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 costs 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 Fac-
tory Approved Service Products pamphlet
are not covered by the Mercedes-Benz
Limited Warranty.
Fuel requirements
Only use premium unleaded gasoline
meeting ASTM standard D 439.
The octane number (posted at the pump)
m u s t b e 9 1 m i n . I t i s a n a v e r a g e o f b o t h t h e
Research (R) Octane Number and the Mo-
tor (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.
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.
Page 492 of 498

491 Index
Rear passenger compartment
Air vents 210
Rear storage compartment in the rear
center console 253
Rear view mirrors auto-dimming 191
Rear view mirrors see Mirrors
Rear window defroster 195
Rear window sunshade* 194
Recommended tire inflation
pressure 333
Regular checks 291
Releasing seat belts 60
Remote control
SmartKey 98
Remote controls
SmartKey with KEYLESS-GO* 103
Remote door unlock (Tele Aid) 269
Replacing bulbs
Front lamps 414
High beam headlamps 415
License plate lamps 416
Low beam headlamps 414
Parking lamps 415
Tail lamps 416
Turn signal lamp 415Reporting safety defects 18
Reserve fuel
Message in display 384
Reset button in the instrument
cluster 158
Reset tool
Despositori 407
Resetting
Maintenance service indicator 341
Restraint system see Infant and child
restraint systems
Rims 333
Roadside assistance 12, 265
RON 291
RON (Research Octane Number) 476
Roof rack* 246
Rotating tires 335
Rubber parts, cleaning 349
Run Flat Indicator* 314S
Safety
Driving safety systems 84
Occupant 64
Reporting defects 18
Safety belts see Seat belts
Seat belt force limiter 73
Seat belts 70
Cleaning 350
Fastening 46
Messages in display 392
Proper use of 48, 72
Safety guidelines 68
Telltale 358
Seat cushion depth
Adjusting 126
Seat heating*
Switching off 129
Switching on 129
Seat ventilation*
Switching off 130
Switching on 130
Seating capacity 306
Page 495 of 498

494 IndexTele Aid System 477
Telematics* 477
Telephone* 26, 260
Answering a call 173
Ending a call 174
Hands-free microphone 29
Messages in the display 396
Operation 172
Phone book 174
Redialing 175
Tightening torque, Wheel bolts 429, 477
Time 162
Synchronizing 162
TIN 334
Tire and Loading Information
Placard 305
Terminology 332
Tire inflation pressure 421
Checking 311
Tire inflation pressure see the placard on
the fuel filler flap
TIREFIT*
Instructions for use 419Tires
Care and maintenance 302
Cleaning 303
Collapsible (Spare wheel) 472
Direction of rotation, Spinning 304
Driving instructions 282
Inflation pressure 311, 313
Inspection 302
Load rating 334
Low tire pressure telltale*
(Canada only) 360
Messages in display 370, 395
MOExtended system* 321, 429
Ply composition and material
used 334
Retreads 301
Rims and tires 449
Rotation 335
Service life 302
Speed rating 324, 334
Temperature 312, 331
Terminology 332Tire Identification Number see TIN
TPMS malfunction telltale 360
Traction 284
Tread 334
Tread depth 303, 336
Treadwear indicators 334
Vehicle maximum load on 334
Wear pattern 335
Winter 336
Tools 399
Tow-away alarm 95
Towing eye bolt 439
Towing the vehicle 437
Tow-start 435, 437
Traction 182, 334
Transmission fluid level 297
Tread 334
Tread depth 303
Tread depth (tires) 336
Treadwear indicators 334
Trip computer 171
Trip odometer 146