open gas tank MERCEDES-BENZ S-Class 2011 W221 Owner's Manual

F
Favorites (COMAND) ......................... 118
First-aid kit ......................................... 462
First list entry Accepting ...................................... 129
Flat tire
Changing a wheel/mounting the
spare wheel ................................... 463
MOExtended run-flat system .........467
Preparing the vehicle .....................463
Raising the vehicle .........................464
Floormat ............................................. 442
Freeway information ......................... 185
Frequency input Manual ........................................... 209
Front fog lamp (display message) ... 395
Front multicontour seat
(COMAND) .......................................... 266
Front-passenger seat Adjusting from the driver's seat ..... 103
Adjusting from the rear
compartment ................................. 103
Fuel
Additives ........................................ 513
Notes ............................................. 512
Premium-grade unleaded gasoline . 512
Refueling ........................................ 313
Specifications ................................ 512
Tank content/reserve fuel .............511
Troubleshooting ............................. 316
Fuel consumption
Current (on-board computer) .........368
Notes ............................................. 319
Fuel filler cap (display message) ..... 400
Fuel filler flap Opening/closing ....... 314
Fuel level Calling up the range (on-board
computer) ...................................... 368
Fuel tank
Filling capacity ............................... 511
Function buttons (COMAND) ............ 117
Function restrictions Video DVD mode ........................... 237
Fuse allocation chart (vehicle tool
kit) ...................................................... 462Fuses
Dashboard fuse box .......................476
Engine emergency stop .................477
Fuse allocation chart .....................475
Fuse box in the engine
compartment ................................. 476
Fuse box in the rear compartment . 476
Notes ............................................. 475
G
Garage door opener Clearing the memory .....................442
Notes ............................................. 439
Opening/closing the garage door ..441
Programming the remote control ...440
Gear indicator (on-board
computer) .......................................... 371
Gear or selector lever (cleaning
guidelines) ......................................... 458
Genuine Mercedes-Benz parts ......... 508
Genuine wood trim and trim strips
(cleaning instructions) ...................... 458
Glove box ........................................... 422
Gracenote Media Database .............. 222
H
Hands-free microphone Switching on/off ........................... 198
harman/kardon ®
Logic 7 ®
Surround Sound system ................... 134
Hazard warning lamps ...................... 276
HD Radio™ ......................................... 212
Headlamp cleaning system .............. 276
Adding washer fluid .......................450
Notes ............................................. 515
Headlamp mode (daytime driving)
see Daytime running lamps
Headlamps
Cleaning ......................................... 456
Misting up ...................................... 277
Head restraint
NECK-PRO ..................................... 104
NECK-PRO luxury ........................... 104
Index11

GWarning
Hybrid vehicles: ensure that you read the
"HYBRID" supplement. You may otherwise fail
to recognize dangers.
! Do not use diesel to refuel vehicles with a
gasoline engine. Even small amounts of the
wrong fuel result in damage to the fuel
system and engine.
! Do not switch on the ignition if you
accidentally refuel with the wrong fuel.
Otherwise, the fuel will enter the fuel lines.
Notify a qualified specialist workshop and
have the fuel tank and fuel lines drained
completely.
Gasoline
Fuel grade
! You should only refuel with unleaded
premium-grade gasoline as this avoids
damaging the catalytic converter.
If engine running problems are apparent,
have the cause checked immediately and
repaired. Excess unburned fuel can
otherwise enter the catalytic converter,
leading to overheating and possibly
causing a fire.
iOnly refuel with unleaded premium-grade
gasoline with a specified minimum octane
number of 91 (average value of 96 RON/
86 MON).
Usually you will find information about the
fuel grade on the pump. If you cannot find
the label on the gasoline pump, ask the gas
station staff.
You can find further information under
"Fuel" (Y page 512), by consulting an
authorized Mercedes-Benz Center or
visiting http://www.mbusa.com (USA
only).
Refueling
Fuel filler flap
The fuel filler flap is unlocked or locked
automatically when you open or close the
vehicle with the key or using KEYLESS-GO.
The fuel filler flap is located to the rear on the
right. The position of the fuel filler cap is
displayed in the instrument cluster 8. The
arrow next to the filling pump indicates the
side of the vehicle.
:To open the fuel filler flap;To insert the fuel filler cap=Tire pressure table?Fuel type
Opening
XSwitch off the engine.
iWhen the engine is running and the fuel
filler flap is open, the ; engine
diagnostics warning lamp may light up.
For further information on warning and
indicator lamps in the instrument cluster,
see (Y page 418).
XRemove the SmartKey from the ignition
lock.
KEYLESS-GO: open the driver's door. This
returns the ignition to position 0, which
corresponds to the SmartKey being
314RefuelingDriving and parking