Activating/deactivating (on-
board computer, except AMG
vehicles) ........................................ 190
AMG menu (on-board computer) ... 190
Characteristics ................................. 81
Deactivating/activating (button
in AMG vehicles) .............................. 82
Deactivating/activating (except
AMG vehicles) ................................ 190
Display message ............................ 192
ETS/4ETS ........................................ 81
Function/notes ................................ 80
General notes .................................. 80
Important safety information ........... 81
Trailer stabilization ........................... 84
Warning lamp ................................. 206
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 81
Exhaust check ................................... 154
Exhaust tail pipe (cleaning instruc-
tions) .................................................. 268
Exterior lighting
Setting options .............................. 120
see Lights
Exterior mirrors
Adjusting ....................................... 117
Dipping (automatic) ....................... 117
Folding in when locking (on-board
computer) ...................................... 190
Folding in/out (automatically) ....... 117
Folding in/out (electrically) ........... 117
Setting ........................................... 117
Storing settings (memory func-
tion) ............................................... 117
Storing the parking position .......... 117
Eyeglasses compartment ................. 239
F
Favorites
Adding ........................................... 223
Deleting ......................................... 224
Displaying and calling up ............... 223
Moving ........................................... 224
Overview ........................................ 223
Renaming ....................................... 224
Filler cap
see Fuel filler flap Flat tire
MOExtended tires .......................... 272
Preparing the vehicle ..................... 271
TIREFIT kit ...................................... 273
see Emergency spare wheel
Floormats ........................................... 259
Frequencies
Mobile phone ................................. 334
Two-way radio ................................ 334
Front fog lamps
Display message ............................ 191
Fuel
Additives ........................................ 339
Consumption statistics .................. 190
Displaying the current consump-
tion ................................................ 190
Displaying the range ...................... 190
Driving tips .................................... 153
Flexible fuel vehicles ...................... 340
Fuel gauge ....................................... 37
Grade (gasoline) ............................ 338
Important safety notes .................. 337
Premium-grade unleaded gaso-
line ................................................. 338
Problem (malfunction) ................... 149
Quality (diesel) ............................... 339
Refueling ........................................ 145
Tank content/reserve fuel ............. 338
Fuel filler flap
Emergency release ........................ 147
Opening ......................................... 146
Fuel level
Calling up the range (on-board
computer) ...................................... 190
Fuel tank
Capacity ........................................ 338
Problem (malfunction) ................... 149
Fuse allocation chart (vehicle tool
kit) ...................................................... 270
Fuses
Allocation chart ............................. 284
Before changing ............................. 284
Fuse box in the cargo compart-
ment .............................................. 285
Fuse box in the engine compart-
ment .............................................. 285
Fuse box in the trunk ..................... 285
Important safety notes .................. 284
Index11
RIf fuel is swallowed, seek medical assis-
tance without delay. Do not induce vomit-
ing.
RImmediately change out of clothing which
has come into contact with fuel.
GWARNING
Electrostatic buildup can create sparks and
ignite fuel vapors. There is a risk of fire and
explosion.
Always touch the vehicle body before opening
the fuel filler flap or touching the fuel pump
nozzle. Any existing electrostatic buildup is
thereby discharged.
GWARNING
Vehicles with a diesel engine:
If you mix diesel fuel with gasoline, the flash
point is lower than that of pure diesel fuel.
When the engine is running, exhaust system
components could overheat without being
noticed. There is a risk of fire.
Never refuel with gasoline. Never mix gasoline with diesel fuel.
!Do not use diesel to refuel vehicles with a
gasoline engine. Do not switch on the igni-
tion if you accidentally refuel with the
wrong fuel. Otherwise, the fuel will enter
the fuel system. Even small amounts of the wrong fuel could result in damage to the
fuel system and the engine. Notify a quali-
fied specialist workshop and have the fuel
tank and fuel lines drained completely.
!Do not use gasoline to refuel vehicles with
a diesel engine. Do not switch on the igni-
tion if you accidentally refuel with the
wrong fuel. Otherwise, the fuel will enter
the fuel system. Even small amounts of the
wrong fuel could result in damage to the
fuel system and the engine. The repair
costs are high. 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.
Do not get into the vehicle again during the
refueling process. Otherwise, electrostatic
charge could build up again.
If you overfill the fuel tank, fuel could spray
out when the fuel pump nozzle is removed.
iFlexible Fuel vehicles can be recognized
by the Ethanol up to E85 sticker on the
inside of the fuel filler flap.
Refueling
General information
Pay attention to the important safety notes
(
Ypage 145).
The fuel filler flap is unlocked or locked auto-
matically when you unlock or lock the vehicle
with the key or using KEYLESS-GO.
The position of the fuel filler cap is displayed
8 in the instrument cluster. The arrow
next to the filling pump indicates the side of
the vehicle.
Opening the fuel filler flap
Opening the fuel filler flap (example: Sedan)
:
To open the fuel filler flap
;To insert the fuel filler cap
146Refueling
Driving and parking
Problems with fuel and the fuel tank
This section provides descriptions of and solutions to safety-relevant problems. Descriptions
of and solutions to further problems can be found in the Digital Operator's Manual.
ProblemPossible causes/consequences and MSolutions
Fuel is leaking from the
vehicle.GWARNING
The fuel line or the fuel tank is faulty.
Risk of explosion or fire.
XApply the electric parking brake.
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, on vehicles with KEYLESS‑GO:
XOpen the driver's door.
The on-board electronics now have status 0. This is the same as
the SmartKey having been removed.
XDo not restart the engine under any circumstances.
XConsult a qualified specialist workshop.
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 supply of DEF is almost used up, the
Check
AdditiveSeeOperator'sManual
message is shown in the multifunction dis-
play.
When the DEF supply drops to a minimum, the
Remaining Starts: 16
message is shown
in the multifunction display.
If the Remaining Starts: 16
message
appears in the multifunction display, you can
start the engine another 16 times. If DEF is
not refilled, you will subsequently be unable
to start the engine.
XAdd at least 1 gal (3.8 l)of DEF.
XSwitch on the ignition for at least 60 sec-
onds.
XStart the engine.
iHave the DEF tank refilled at a qualified
specialist workshop.
Use the special DEF refill bottle when adding
DEF between maintenance intervals. Contact
an authorized Mercedes-Benz Center with
any questions or, if necessary, contact Road-
side Assistance (
Ypage 29).
If the outside temperature is below 12 ‡
(Ò11 †) it may be difficult to top up. If DEF is frozen and there is an active warning indica-
tor, it may not be possible to add DEF. 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 spe-
cialist workshop.
Further information about BlueTEC exhaust
gas aftertreatment and DEF is available at any
authorized Mercedes-Benz Center.
Refueling149
Driving and parking
Z
Important notes on topping up
DEFisa water-soluble fluid for the exhaust
gas aftertreatment of diesel engines. Itis:
Rnot pois onous
Rcolorless and odorless
Rnot flammable
When you open the DEF container, small
amounts of ammonia vapor may be released. Ammon iavapors have a pungent odor and are
particularly irr itating to the skin, to mucous
membranes and to the eyes. You may expe-
rience a burning sensation in your eyes, nose and throat. Coughing and watering of the
eyes are possible.
Do not inhale ammonia vapors. Fill the DEF
tank only in well- ventilated areas.
DEF must not come into contact with your
skin, eyes or clothing and must not beswal-
lowed. Keep DEF away from children.
If you or other persons come into contact with
DEF, observe the fol lowing:
RRinse DEF from your skin immediatelywith
soap and water.
RIf DEF comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance with-
out delay.
RIf DEF has been swallowed,rinse your
mouth out immediately. Drink plenty of
water. Seek medical assistance without
delay.
RChange out of clothing contaminated with
DEF immediately.
!Only use DEF in accordance with
IS O 22241. Do not mix any additives with
DEF, and donot dilute DEF with water. This
may destroy th e B
lueTEC exhaust gas after-
treatment system.
!Rins e surfaces that have come into con-
tact with DEF immediately with water or
remove DEF using a damp cloth and co ld
water. Ifthe DEF has already crystallized,
use a sponge and co ldwater to clean it. DEF residues crystallize after time and contam-
inate the affected surfaces.
!DEF
isnot a fuel additive and must not be
added to the fuel tank. IfDEF isadded to
the fuel tank, th iscan lead to engine dam-
age.
!Only screw on the DEF ref illbottle hand-
tight. Itcould otherwise bedamaged.
The DEF filler neck isunder the trunk floor.
XSwi tch the ignit ion off.
XOpen the trunk.
XLift up the trunk floor (Ypage 248).
XTurn DEF cap :counter-clock wiseand
remove it.
XTurn DEF filler cap ;counter-clockwise
and open it.
Filler cap ;issecured with a plastic strip.
150Refueling
Driving and parking