fuel cap MERCEDES-BENZ M-Class 2014 W166 Owner's Manual

Exhaus
tcheck ............................... 182
Fuel ................................................ 182
General .......................................... 182
Hydroplaning ................................. 186
Icy road surfaces ........................... 187
Limited braking efficiency on
salted road s................................... 184
Off-road driving .............................. 188
Off-road fording ............................. 186
Snow chains .................................. 401
Symmetrical low bea m.................. 120
Tire ruts ......................................... 190
Towing atrailer .............................. 253
Traveling uphill ............................... 190
Wet road surface ........................... 184
DSR (Downhill Spee dRegulation)
Display message ............................ 304
Function/notes ............................. 246
DVD audio
Operating (on-board computer) .....270
DVD video
Operating (on-board computer) .....270 E
EASY-ENTRY feature Activating/deactivating .................277
Function/notes ............................. 113
EASY-EXIT feature
Crash-responsive ........................... 114
Function/notes ............................. 113
Switching on/off ........................... 277
EASY-PACK load-securing kit ...........340
EBD (electronic brake force
distribution)
Display message ............................ 285
Function/notes ................................ 74
ECO display
Function/notes ............................. 183
On-board computer .......................267
ECO start/stop function
Automatic engine start ..................162
Automatic engine switch-off ..........162
Deactivating/activating .................163
General information .......................161
Important safety notes ..................161
Introduction ................................... 161Electronic Stability Program
see ESP ®
(Electroni cStability Program)
Emergenc yrelease
Driver's door .................................... 88
Vehicle ............................................. 88
Emergency spare wheel
General notes ................................ 436
Important safety notes ..................436
Removing ....................................... 436
Storage location ............................ 436
Technical data ............................... 438
Emergency Tensioning Devices
Function .......................................... .59
Safety guideline s............................. 43
Emergency unlocking
Tailgate ............................................ 93
Emissions control
Service and warranty information ....24
Engine
Check Engine warning lamp ........... 325
Display message ............................ 298
ECO start/stop function ................161
Engine number ............................... 443
Irregularr unning............................ 164
Jump-starting ................................. 389
Starting problems ..........................164
Starting the engine with the
SmartKey ....................................... 159
Starting with KEYLESS-GO .............160
Switching off .................................. 180
Tow-starting (vehicle) ..................... 394
Engine electronics
Problem (malfunction) ...................164
Engine oil
Adding ........................................... 366
Additives ........................................ 449
Checking the oil level ..................... 365
Checking the oil level using the
dipstick .......................................... 365
Display message ............................ 300
Filling capacity ............................... 449
Notes about oil grades ................... 448
Notes on oil level/consumption ....365
Temperature (on-board computer) .278
Viscosity ........................................ 44910
Index

ESP
®
(Electronic Stability
Program) AMG menu (on-board computer) ...279
Deactivating/activating ...................72
Display message ............................ 283
ETS/4ETS ........................................ 71
Function/notes ................................ 71
General notes .................................. 71
Important safety information ...........72
Trailer stabilization ........................... 73
Warning lamp ................................. 321
ETS/4ETS (Electronic Traction
System) ................................................ 71
Exhaus tcheck ................................... 182
Exhaus tpipe (cleaning instructions) 374
Exterior lighting see Lights
Exterior mirrors
Adjustin g....................................... 114
Dipping (automatic) .......................115
Folding in/ou t(automatically) .......115
Folding in/ou t(electrically) ...........115
Folding in whe nlocking (on-board
computer) ...................................... 277
Out of position (troubleshooting) ...115
Setting ........................................... 115
Storing settings (memory function) 117
Storing the parking position ..........116
Eyeglasses compartment .................334 F
Fille rcap
see Fuel filler flap
First-aid kit ......................................... 380
Flat tire MOExtended tires ..........................382
Preparing the vehicle .....................381
TIREFIT kit ...................................... 383
see Emergency spare wheel
Floormats ........................................... 362
Folding the rear bench seat
forwards/back .................................. 335
Fording Off-road ......................................... 186
On flooded road s........................... 186Fuel
Additives ........................................ 446
Consumption statistics ..................266
Displaying the current
consumption .................................. 267
Displaying the range ......................267
Driving tips .................................... 182
Flexible fuel vehicles ......................447
Fuel gauge ............................... 33, 263
Grade (gasoline) ............................ 445
Important safety notes ..................444
Low outside temperatures .............446
Premium-grade unleaded gasoline .445
Problem (malfunction) ...................176
Quality (diesel )............................... 446
Refueling ........................................ 173
Tank content/reserve fuel .............445
Fuel filler flap
Opening/closing ............................ 174
Fuel filte r(display message) ............301
Fuel level Calling up the range (on-board
computer) ...................................... 267
Fuel tank
Capacity ........................................ 445
Problem (malfunction) ...................176
Fuses
Allocation chart ............................. 395
Before changing ............................. 395
Dashboard fuse box .......................395
Fuse box in the engine
compartment ................................. 395
Fuse box unde rrear bench seat ....396
Important safety notes ..................394 G
Garage door opener Clearing the memory .....................361
Important safety notes ..................359
Opening/closing the garage door ..361
Programming (button in the rear-
view mirror) ................................... 359
Gear indicator (on-board computer) 278
Genuine parts ...................................... 23
Glove box ........................................... 333
GTW (Gross Trailer Weight)
(definition) ......................................... 419 Index
11

Limiting the opening angle
...............93
Opening/closing (automatically
from inside) ...................................... 92
Opening/closing (automatically
from outside) ................................... 91
Opening/closing (from outside) .......90
Opening dimensions ......................452
Power closing .................................. 88
Tail lamps
Display message ............................ 296
Tank content
Fuel gauge ............................... 33, 263
Technical data
Capacities ...................................... 444
Emergency spare wheel .................438
Information .................................... 442
Tires/wheels ................................. 426
Trailer loads ................................... 456
Vehicle data ................................... 452
TELEAID
Call priority .................................... 354
Downloading destinations
(COMAND) ..................................... 354
Downloading route s....................... 358
Emergency call .............................. 351
Geo fencing ................................... 358
Locating astolen vehicl e............... 357
MB info call button ........................353
Remote vehicle locking ..................356
Roadside Assistance button ..........353
Search &Send ............................... 355
Self-test ......................................... 351
Speed alert .................................... 358
System .......................................... 351
Triggering the vehicle alarm ........... 359
Vehicle remote malfunction
diagnosi s....................................... 357
Vehicle remote unlocking ..............356
Tele Aid
General notes ................................ 350
Telephone
Accepting acall............................. 271
Display message ............................ 314
Menu (on-board computer) ............270
Number from the phone book ....... .271
Redialing ........................................ 271
Rejecting/ending acall................. 271Telescopic rod (EASY-PACK load-
securing kit)
....................................... 341
Temperature Coolant .......................................... 263
Coolant (on-board computer) ......... 278
Engine oil (on-board computer) ...... 278
Outside temperature ..................... .264
Setting (climate control) ................147
Theft deterrent systems
ATA (Anti-Theft Alarm system) .........76
Immobilize r...................................... 76
Through-loading ................................ 335
Time see separate operating instructions
Timing (RACETIMER) .........................279
TIREFIT kit .......................................... 383
Tire pressure Calling up (on-board computer) .....406
Checking manually ........................405
Display message ............................ 310
Important safety notes ..................406
Maximum ....................................... 404
Notes ............................................. 403
Not reached (TIREFIT) ....................384
Reached (TIREFIT) ..........................384
Recommended ............................... 402
Tire pressure loss warning
system
Important safety notes ..................405
Restarting ...................................... 406
Tire pressure monitoring system
Checking the tire pressure
electronically ................................. 408
Function/notes ............................. 406
General notes ................................ 406
Important safety notes ..................407
Restarting ...................................... 409
Warning lamp ................................. 329
Warning message .......................... 408
Tires
Aspect ratio (definition) .................420
Average weight of the vehicle
occupants (definition) ....................419
Bar (definition) ............................... 418
Changing awheel .......................... 421
Characteristics .............................. 418
Checking ........................................ 399
Definition of terms .........................418 Index
19

If you or others come into contact with fuel,
observe the following:
R
Wash away fuel from skin immediately
using soap and water.
R If fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medica lassistance
without delay.
R If fuel is swallowed, seek medical
assistance without delay.Don ot induce
vomiting.
R Immediately change out of clothing which
has come into contact with fuel. G
WARNING
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. G
WARNING
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 gasoline to refuel vehicles with
a diesel engine. Do not use diesel to refuel
vehicles with a gasoline engine. Do not
switch on the ignition 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.
i Flexible Fuel vehicles can be recognized
by the Ethanol up to E85 sticker on the
inside of the fuel filler flap.
For further information on fuel and fuel quality
(Y page 444). Refueling
Opening/closing the fuel filler flap Pay attention to the important safety notes
(Y
page 173). 0002
To open the fuel filler flap
0003 To insert the fuel filler cap
0023 Fuel type to be used
0022 Tire pressure table
The fuel filler flap is unlocked or locked
automatically when you open or close the 174
RefuelingDriving and parking

vehicle with the SmartKey or with KEYLESS-
GO.
The position of the fuel filler cap is displayed
0012 in the instrument cluster. The arrow
next to the filling pump indicates the side of
the vehicle.
Opening the fuel filler flap 0002
To open the fuel filler flap
0003 To insert the fuel filler cap
0023 Fuel type to be used
0022 Tire pressure table
X Switch the engine off.
X Remove the SmartKey from the ignition
lock.
X KEYLESS-GO: open the driver’s door.
This corresponds to key position 0: "key
removed".
The driver’s door can be closed again.
X Press the fuel filler flap in the direction of
arrow 0002.
The fuel filler flap swings up.
X Turn the fuel filler flap counter-clockwise
and remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap 0003.
X Completely insert the filler neck of the fuel
pump nozzle into the tank, hook in place
and refuel.
X Only fill the tank until the pump nozzle
switches off. i
Do not add any more fuel after the pump
stops filling for the first time. Otherwise,
fuel may leako ut.
Closing the fuel filler flap X
Replace the cap on the fille rneck and turn
clockwise until it engages audibly.
X Close the fuel filler flap.
i Close the fuel filler flap before locking the
vehicle.
i If you are driving with the fuel filler cap
open, the 0012reserve fuel warning lamp
flashes.
In addition, the 0010Check Engine warning
lamp may light up (Y page 325).
Am essage appears in the multifunction
display (Y page 300).
For further information on warning and
indicator lamps in the instrument cluster,
see (Y page 325). Refueling
175Driving and parking Z

is not permitted if the vehicle is not parked
on a level surface. There is a danger of
overfilling, which could result in damage to
components of the BlueTE
Cexhaus tgas
aftertreatment.
! Rinse surfaces that have come into
contact with DE Fimmediately 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 clea nit. DEF
residues crystallize after time and
contaminate the affected surfaces.
! DEF is not a fuel additive and must not be
added to the fuel tank. If DEF is added to
the fuel tank, this can lead to engine
damage.
For further information on DEF, see
(Y page 447).
Opening the DEF filler cap The fuel filler flap is unlocked or locked
automatically when you open or close the
vehicle with the SmartKey or with KEYLESS-
GO.
X
Switch the ignition off.
X Press the fuel filler flap in the directio nof
arrow 0002.
The fuel fille rflap swings up.
X Turn blue DE Ffiller cap 0003counter-
clockwise and remove it.
DEF filler cap 0003is secured with a plastic
strip. DEF refill bottle !
Only screw on the DE Frefill bottle hand-
tight .Itcould otherwise be damaged. X
Unscrew the protective cap from DEF refill
bottle 0002.
X Place DEFr efill bottle0002on the filler neck
as shown and screw it on clockwise until
hand-tight.
X Press DEFr efill bottle0002towards the filler
neck.
The DEFt ank is filled. This may take up to
one minute.
i When DE Frefill bottle 0002is no longer
pressed, filling stops and the bottle may be
taken off again after being only partially
emptied.
X Release DEFr efill bottle0002.
X Turn DEFr efill bottle 0002counter-clockwise
and remove it.
X Screw the protective cap onto DEF refill
bottle 0002again.
DEFr efill bottles can be obtained at many gas
stations or at an authorized Mercedes-Benz
Center .Refill bottles without a threaded cap
do not provide overfill protection. DEF may
leak if overfilled. Mercedes Benzo ffers
special refill bottles with a threaded seal.
These are available at any authorized
Mercedes-Benz Center. 178
RefuelingDriving and parking

Closing the DEF filler cap
X
Mount DEF filler cap 0003on the filler neck
and turn it clockwise.
X To close the fuel fille rflap, press it in the
direction of arrow 0002.
X Drive faster than 10 mph (16 km/h).
The Check Additive See Operator's Manual message goes out after
approximately one minute.
i If the Check Additive See Operator's Manual message continues
to be shown in the multifunction display,
you must add more DEF. Parking
Important safety notes
G
WARNING
If flammable materials such as leaves, grass
or twigs are exposed to prolonged contac tto
parts of the exhaust system that heat up, they
could ignite. There is a risk of fire.
Park the vehicle so that no flammable
materials come into contact with parts of the
vehicle which are hot. Take particular care not
to park on dry grassland or harvested grain
fields. G
WARNING
If you switch off the ignition while driving,
safety-relevant function sare only available
with limitations, or not at all.T his could affect,
for example, the power steering and the brake boosting effect.Y
ou will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving. G
WARNING
If you leave children unsupervised in the
vehicle, they could set it in motion by, for
example:
R releasing the parking brake
R shifting the automatic transmission out of
the parking position P
R starting the engine.
They could also operate the vehicle's
equipment. There is a risk of an accident and
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
! Always secure the vehicle correctly
against rolling away.O therwise, the vehicle
or its drivetrai ncould be damaged.
To ensure that the vehicle is secured against
rolling away unintentionally:
R the electric parking brake must be applied.
R the transmission must be in position Pand
the SmartKey must be removed from the
ignition lock.
R on steep uphill or downhill gradients, turn
the front wheels towards the curb.
R on steep uphill or downhill gradients, the
front axle of an empty vehicle must be
secured, for example with awheel chock.
R on steep uphill or downhill gradients, the
rear axle of a laden vehicle must be
additionally secured, for example with a
wheel chock. Parking
179Driving and parking Z

R
Do not jump with the vehicle as this will
interrupt the vehicle's propulsion.
R Always keep the engine running and in gear
when driving on a slope.
R Do not shift the automatic transmission to
transmission position N.
i Do not use the HOLD function when
driving off-road, on steep uphill or downhill
gradients or on slippery or loose surfaces.
The HOLD functio ncannot hold the vehicle
on such surfaces.
Checklist before driving off-road !
If the engine oil warning lamp lights up
while the vehicle is in motion, stop the
vehicle in a safe place as soon as possible.
Chec kthe engine oil level. The engine oil
warning lamp warning must not be ignored.
Continuing the journey while the symbol is
displayed could lead to engine damage.
X Engine oil level: check the engine oil level
and add oil if necessary.
When driving on steep gradients, the
engine oil level must be sufficiently high to
ensure a correct oil supply in the vehicle.
X DEF tank (BlueTEC vehicles): check the
level and top up if necessary (Y page 177).
X Tire-changing tool kit: check that the jack
is working and make sure you have the lug
wrench, a robust tow cable and a folding
spade in the vehicle.
X Wheels and tires: check the tire tread
depth and tire pressure.
X Check for damage and remove any foreign
objects, e.g. small stones, from the
wheels/tires.
X Replace any missing valve caps.
X Replace dented or damaged wheels.
X Rims: dented or bent rims can result in a
loss of tire pressure and damage the tire
bead. Therefore, check your rims before
driving off-road and replace them as
required. Checklist after driving off-road !
If you detect damage to the vehicle after
driving off-road, have the vehicle checked
immediately at a qualified specialist
workshop.
X Deactivate DSR (Y page 246).
X Vehicles with the AIRMATIC package:
lower the vehicle to a ride height suitable
for the road conditions, e.g. to the
highway/high-speed level.
X Cleant he headlamps and rear lights and
check for damage.
X Cleant he front and rear license plates.
X Cleant he wheels/tires with a water jet and
remove any foreign objects.
X Cleant he wheels, wheel housings and the
vehicle underside with a water jet; check
for any foreign objects and damage.
X Check whether twigs or other parts of
plants have become trapped. These
increase the risk of fire and can damage
fuel pipes, brake hoses or the rubber
bellows of the axle joints and propeller
shafts.
X After the trip, examine without fail the
entire undercarriage, wheels, tires, brakes,
bodywork structure, steering, chassis and
exhaust system for damage.
X After driving for extended periods across
sand, mud, gravel, water or in similarly dirty
conditions, have the brake discs, wheels,
brake pads/linings and axle joints checked
and cleaned.
X If you detect strong vibrations after off-road
travel, check for foreign objects in the
wheels and drive train and remove them if
necessary. Foreign objects can disturb the
balance and cause vibrations.
Driving over rough terrain places greater
demands on your vehicle than driving on
normal roads. After driving off-road, check
the vehicle. This allows you to detect damage
promptly and reduce the risk of an accident
to yourself and other road users. Driving tips
189Driving and parking Z

plates and those for the towing vehicle under
"Technical data" (Y
page 456).
When towing a trailer, your vehicle's handling
characteristics will be differen tincomparison
with when driving without atrailer.
The vehicle/trailer combination:
R is heavier
R is restricted in its acceleration and
gradient-climbing capability
R has an increased braking distance
R is affected more by strong crosswinds
R demands more sensitive steering
R has a larger turning radius
This could impair the handling
characteristics.
When towing a trailer, always adjust your
speed to the current road and weather
conditions. Do not exceed the maximum
permissible speed for yourv ehicle/trailer
combination.
General notes R
Do not exceed the legally prescribed
maximum speed for vehicle/trailer
combinations in the relevant country.
This lowers the risk of an accident.
R Only install an approved trailer coupling on
your vehicle.
Further information on availability and on
installation is available from any authorized
Mercedes-Benz Center.
R The bumpers of your vehicle are not
suitable for installing detachable trailer
couplings.
R Do not install hired trailer couplings or
other detachable trailer couplings on the
bumpers of your vehicle.
R If you no longer need the ball coupling,
remove it from the ball coupling recess.
This will reduce the risk of damage to the
ball coupling.
i When towing a trailer, set the tire
pressure on the rear axle of the towing vehicle for a maximum load; see the tire
pressure table in the fuel filler flap
(Y
page 419).
Please note that when towing a trailer,
PARKTRONIC ( Ypage 213) and Blind Spot
Assist (Y page 233) are only available with
limitations, or not at all.
i On vehicles without level control, the
height of the ball coupling will alter
according to the load placed on the vehicle.
If necessary, use a trailer with a height-
adjustable drawbar.
You will find installing dimensions and loads
under "Technical data" (Y page 455).
Driving tips i
Observe the information on ESP ®
trailer
stabilization (Y page 73) and on pulling
away with a trailer (Y page 160).
The maximum permissible speed for vehicle/
trailer combinations depends on the type of
trailer. Before beginning the journey, check
the trailer's documents to see what the
maximum permissible speed is. Observe the
legally prescribed maximum speed in the
relevant country.
For certain Mercedes-Benzv ehicles, the
maximum permissible rear axle load is
increased when towing a trailer. See
"Technical data" to find out whether this
applies to your vehicle (Y page 456). If you
utilize any of the added maximum rear axle
load when towing a trailer, the vehicle/trailer
combination may not exceed a maximum
speed of 60 mph (100 km/h) for reasons
concerning the operating permit .This also
applies in countries in which the permissible
maximum speed for vehicle/trailer
combinations is above 60 mph (100 km/h).
When towing a trailer, your vehicle's handling
characteristics will be different in comparison
with when driving without atrailer.
Use the left-hand paddle shifter to shift into
a lower gearing ood time on long and steep
downhill gradients. 254
Towing
atrailerDriving an d parking

Display messages Possible causes/consequences and
0001 Solutions
0013
Check Engine Oil
At Next Refueling The engine oil level has dropped to the minimum level.
Aw
arning tone also sounds.
X Chec kthe oil level when next refueling, at the latest
(Y page 365).
X If necessary, add engine oil (Y page 366).
X Have the engine checked at a qualified specialist workshop if
engine oil needs to be added more often than usual.
! Avoid long journeys with too little engine oil. The engine will
otherwise be damaged.
Information on approved engine oils can be obtained from any
qualified specialist workshop or on the Internet at http://
bevo.mercedes-benz.com. 0013
Check Engine Oil
Level (Add 1 quart) AMG vehicles: the engine oil level is too low.
X
Check the oil level when next refueling, at the latest
(Y page 365).
X If necessary, add engine oil (Y page 366).
X Have the engine checked at a qualified specialist workshop if
engine oil needs to be added more often than usual.
! Avoid long journeys with too little engine oil. The engine will
otherwise be damaged.
Information on approved engine oils can be obtained from any
qualified specialist workshop or on the Internet at http://
bevo.mercedes-benz.com. 0012
Fuel Level Low The fuel level has dropped into the reserve range.
X
Refuel at the nearest gas station. 000A There is only a very small amount of fuel in the fuel tank.
X
Refuel at the nearest gas station without fail. 0012
Gas Cap Loose The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X
Check that the fuel filler cap is correctly closed.
If the fuel filler cap is not correctly closed:
X Close the fuel filler cap.
If the fuel filler cap is correctly closed:
X Visit a qualified specialist workshop. 300
Display messagesOn-board computer and displays