2012 MERCEDES-BENZ S-CLASS SEDAN open gas tank

ETS/4ETS (Electronic Traction
System) ................................................ 76
Exhaust check ................................... 331
Exhaust tail pipe (cleaning
instructions) ...................................... 470
Exterior lighting see Exterior lighting
Exterior mirror parking position
Adjusting (COMAND) .....................266
Exterior mirrors
Adjusting ....................................... 116
Dipping (automatic) .......................117
Folding in/out (automatically) .......116
Folding in/out (electrically) ...........116
Out of position (troubleshooting) ...116
Storing settings (memory
function) ........................................ 118
Storing the parking position ..........117
Eyeglasses compartment ................. 435
F
Factory setting (reset function) ....... 154
Fader, setting .................................... 139
Fast forward Audio mode (CD, DVD, MP3) .........230
Rear Seat Entertainment System ...260
Video DVD ..................................... 247
Fast rewind
Audio mode (CD, DVD, MP3) .........230
Rear Seat Entertainment System ...260
Video DVD ..................................... 247
Favorites (COMAND) ......................... 124
Filler cap see Fuel filler flap
First-aid kit ......................................... 474
Flat tire Changing a wheel/mounting the
spare wheel ................................... 475
MOExtended run-flat system .........480
Preparing the vehicle .....................475
Raising the vehicle .........................476
Floormat ............................................. 455
Freeway information ......................... 191
Front fog lamps ................................. 282
Display message ............................ 404
Switching on/off ........................... 282
Front-passenger seat
Adjusting from the driver's seat ..... 109
Adjusting from the rear
compartment ................................. 109
Front windshield
see Windshield
Fuel
Additives ........................................ 526
Displaying the current
consumption .................................. 378
Displaying the range ......................378
Driving tips .................................... 330
Fuel gauge ....................................... 37
Grade (gasoline) ............................ 525
Important safety notes ..................525
Premium-grade unleaded gasoline . 525
Problem (malfunction) ...................324
Quality (diesel) ............................... 526
Refueling ........................................ 321
Tank content/reserve fuel .............525
Fuel filler flap, opening/closing ....... 322
Fuel filter (display message) ............ 409
Fuel level Calling up the range (on-board
computer) ...................................... 378
Fuel tank
Capacity ........................................ 525
Problem (malfunction) ...................324
Function buttons (COMAND) ............ 123
Fuses Allocation chart ............................. 488
Before changing ............................. 488
Dashboard fuse box .......................488
Engine emergency stop .................490
Fuse box in the engine
compartment ................................. 489
Fuse box in the rear compartment . 488
Important safety notes ..................487
G
Garage door opener Clearing the memory .....................455
Notes ............................................. 452
12Index

pump nozzle, which could cause personal
injury.GWARNING
Hybrid vehicles: be sure to read the "HYBRID"
supplement. Otherwise, you could fail to
recognize dangers.
GWARNING
Do not fill diesel tanks with gasoline. Do not
mix diesel fuel with gasoline. Otherwise the
fuel system and engine could be damaged. In
addition, the vehicle could catch fire.
! Do not use gasoline to refuel vehicles with
a diesel engine. Do not use diesel to refuel
vehicles with a gasoline engine. Even a
small quantity of the wrong fuel will
damage 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.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use a filter when refueling from a fuel can.
Otherwise, the fuel lines and/or injection
system could be blocked by particles from
the fuel can.
Further information on fuel and on fuel grades
can be found in the "Fuel" section
( Y page 525).
Refueling
Fuel filler flap:To open the fuel filler flap;To insert the fuel filler cap=Tire pressure table?Fuel type
The fuel filler flap is unlocked or locked
automatically when you open or close the
vehicle with the SmartKey or with KEYLESS-
GO.
The position of the fuel filler cap 8 is
displayed in the instrument cluster. The arrow
next to the filling pump indicates the side of
the vehicle.
Opening
XSwitch off the engine.XRemove the SmartKey from the ignition
lock.XKEYLESS-GO: open the driver’s door.
This corresponds to SmartKey position 0:
"SmartKey removed".
The driver’s door can be closed again.XPress the fuel filler flap in the direction of
arrow :.
The fuel filler flap opens slightly.XOpen the fuel filler flap fully.XTurn the fuel filler flap counter-clockwise
and remove it.XInsert the fuel filler cap into the holder
bracket on the inside of filler flap ;.322RefuelingDriving and parking

DEF (BlueTEC vehicles only)
Important notes on use
To function properly, BlueTEC exhaust gas
aftertreatment must be operated with the
reducing agent DEF. Adding DEF is one of the
tasks performed during maintenance. Under
normal operating conditions, a tank of DEF
lasts until the next service due date.
When the DEF level is too low, the Check
Additive See Operator's Manual
message is shown in the multifunction
display.
When the DEF supply sinks to a minimum
level, the Remaining Starts: 16 message
is shown in the multifunction display.
When the Remaining Starts: 16 message
is shown in the multifunction display, you can
start the engine 16 more times. If DEF is not
added, it will then not be possible to restart
the engine. Fill the DEF tank with about 1 gal
(3.8l) of DEF or have the DEF tank refilled at
a qualified specialist workshop.
Use the special DEF refill bottle when filling
between maintenance intervals. Contact an
authorized Mercedes-Benz Center with any
questions or, if necessary, contact Roadside
Assistance ( Y page 29).
If the outside temperature is lower than 12 ‡
( Ò 11†) , damage may occur when adding DEF.
If DEF is frozen and there is an active warning
indicator, adding may not be possible. Park
the vehicle in a warmer place, e.g. in a garage,
until DEF has become fluid again. It will then
be possible to add DEF again. Alternatively,
have the DEF tank refilled at a qualified
specialist workshop.
Further information about BlueTEC exhaust
gas aftertreatment and DEF is available at any
authorized Mercedes-Benz Center.
Adding DEFGWARNING
Make sure
R DEF does not come into contact with skin,
eyes, or clothing
R to keep DEF out of the reach of children
If you and/or others have come into contact
with DEF:
R If DEF has gotten into contact with eyes,
flush with plenty of water immediately and
seek medical help.
R Clean affected skin immediately with plenty
of water.
R If DEF was swallowed, rinse mouth
immediately with plenty of water and drink
plenty of water. Consult a physician.
GWARNING
If you open the DEF tank cap, small amounts
of ammonia vapor may be released. This
depends in particular upon the age of the DEF.
Ammonia vapors have a pungent odor and are
particularly irritating to:
R skin
R mucous membranes
R eyes
You may experience a burning sensation in
your eyes, nose and throat, as well as
coughing and watering of the eyes.
Do not inhale any ammonia vapors that may
be released. Fill the DEF tank only in well-
ventilated areas.
! Only use DEF in accordance with
ISO 22241. Do not mix any additives with
DEF, and do not dilute DEF with water. This
may destroy the BlueTEC exhaust gas
aftertreatment system.
! Rinse surfaces that have come into
contact with DEF immediately with water or
remove DEF using a damp cloth and cold
water. If the DEF has already crystallized,
use a sponge and cold water to clean it. DEF
Refueling325Driving and parkingZ

engine and could result in the vehicle catching
fire.
! Only use commercially available vehicular
ULTRA-LOW SULFUR DIESEL FUEL (ULSD,
15 ppm maximum sulfur content) that
meets the ASTM D975 standard. If you do
not refuel with ULSD, you may damage the
BlueTEC exhaust gas aftertreatment
system of the vehicle.
! Do not use gasoline to refuel vehicles with
a diesel engine. Do not mix diesel fuel with
gasoline, kerosene or paraffin. This may
otherwise result in damage to the fuel
system and engine.
You will usually find information about the fuel
grade on the pump. If you cannot find the
label on the pump, ask the staff for
assistance.
i For further information, consult a
qualified specialist workshop or on the
Internet at http://www.mbusa.com (USA
only).
Information on refueling ( Y page 321).
Bio-diesel - FAME (fatty acid methyl ester)
Mercedes-Benz USA approves the use of bio-
diesel B5 for all BlueTEC diesel engines. The
concentration of bio-diesel in the ULSD may
not exceed 5 % by volume.
Pure biodiesel and diesel fuel with a higher
percentage of biodiesel, such as B20, can
damage the engine and the fuel system. For
this reason, they are not approved.
For more information, consult the gas station
staff. The bio-diesel B5 label on the gasoline
pump must clearly state that the standard for
ULSD has been fulfilled. If the label is not
clear, do not refuel the vehicle.
Do not refuel your vehicle with fuels unless
they have been approved by Mercedes-Benz.
Information on refueling ( Y page 321).Low outside temperatures
i Diesel fuel with improved cold flow
properties is available during the winter
months. Further information about fuel
properties can be obtained from oil
companies, e.g. at gas stations.
Flow improver
To improve the low-temperature resistance of
diesel fuel, a flow improver can be attached.
The effectiveness of a flow improver is not
guaranteed for every fuel.
Only use flow improvers tested and approved
by Mercedes-Benz. During use, please
observe the information on operation.
Correct dosage and sufficient mixing are
decisive in improving low-temperature
resistance with the flow improver.
Overdosage can potentially even decrease
low-temperature resistance and must
therefore be avoided. Follow the
manufacturer's guidelines on dosage.
Mix the additive into the diesel in good time,
before the flow characteristics of the diesel
become insufficient. Otherwise, malfunctions
can arise through heating the fuel system,
e.g. through parking in a heated garage.
More information about recommended flow
improvers can be obtained from any qualified
specialist workshop.
DEF
Please bear the following in mind
DEF is a non-flammable, non-toxic, colorless,
odorless and water-soluble fluid.
High outside temperatures
GWARNING
If you open the DEF tank cap, small amounts
of ammonia vapor may be released. This
depends in particular upon the age of the DEF.
Service products and filling capacities527Technical dataZ