
Quality (diesel)
............................... 408
Refueling ........................................ 169
Tank content/reserve fuel .............407
Fuel filler flap
Emergency release ........................ 171
Opening/closing ............................ 170
Fuel filter (display message) ............260
Fuel level Calling up the range (on-board
computer) ...................................... 231
Fuel tank
Capacity ........................................ 407
Problem (malfunction) ...................172
Fuse allocation chart (vehicle tool
kit) ...................................................... 342
Fuses Allocation chart ............................. 357
Before changing ............................. 357
Fuse box in the cargo
compartment ................................. 358
Fuse box in the engine
compartment ................................. 358
Fuse box in the trunk ..................... 358
Important safety notes .................. 357G
Garage door opener Clearing the memory
.....................323
Important safety notes .................. 320
Opening/closing the garage door ..323
Programming (button in the rear-
view mirror) ................................... 321
Gear indicator (on-board
computer) .......................................... 242
Genuine Mercedes-Benz parts ......... 404
Glove box ........................................... 289H
Handbrake see Parking brake
Hazard warning lamps ......................125
Head bags Display message ............................ 251
Headlamps
Adding fluid to cleaning system .....332
Cleaning system (capacity) ............ 413Cleaning system (function) ............
125
Cleaning system (notes) ................413
Fogging up ..................................... 128
see Automatic headlamp mode
Head restraints
Adjusting ....................................... 105
Adjusting (angle) ............................ 105
Adjusting (electrically) ...................105
Adjusting (rear) .............................. 105
Installing/removing (rear) .............. 106
Luxury ............................................ 105
Heating
see Climate control
High-beam headlamps
Changing bulbs .............................. 131
Display message ............................ 255
Switching Adaptive Highbeam
Assist on/off ................................. 127
Switching on/off ........................... 124
Hill start assist .................................. 156
HOLD function Display message ............................ 262
Function/notes ............................. 196
Hood
Closing ........................................... 329
Display message ............................ 272
Opening ......................................... 328
Hydroplaning ..................................... 182 I
Ignition lock see Key positions
Immobilizer .......................................... 74
Indicator lamps see Warning and indicator lamps
Infrared lamps (changing bulbs) ......132
Insect protection on the radiator .... 329
Instrument cluster Overview .................................. 31, 227
Settings ......................................... 238
Warning and indicator
lamps ....................................... 32, 275
Instrument cluster lighting .............. 227
Interior lighting ................................. 128
Automatic control .......................... 129
Delayed switch-off (on-board
computer) ...................................... 240 Index
11

G
WARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
BAS operates in emergency braking
situations. If you depress the brake pedal
quickly,
BAS automatically boosts the braking
force, thus shortening the stopping distance.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated. BAS PLUS (Brake Assist System Plus)
i Observe the "Important safety notes"
section ( Y page 67).
BAS PLUS is only available in vehicles
equipped with DISTRONIC PLUS.
BAS PLUS provides braking assistance in
hazardous situations at speeds greater than
4 mph (7 km/h) and uses radar sensor
technology to assess the traffic situation.
With
the help of the radar sensor system, BAS
PLUS can detect obstacles that are in the
path of your vehicle for an extended period of
time.
BAS PLUS can also react to stationary
obstacles, e.g. stopped or parked vehicles, at
speeds of up to approximately 40 mph
(70 km/h).
To prevent a front-end collision, BAS PLUS
calculates the brake force necessary if:
R you approach an obstacle, and
R BAS PLUS has detected a risk of collision
For speeds above 20 mph (30 km/h): if you
apply the brakes forcefully, BAS PLUS
automatically increases the braking force to
a level suitable for the traffic conditions.
For speeds below 20 mph (30 km/h): if you
apply the brakes, BAS PLUS is activated.
Braking is performed as late as possible. If BAS PLUS demands particularly high
braking force, preventative passenger
protection measures (PRE-SAFE
®
) are
activated simultaneously.
X Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
BAS PLUS is deactivated and the brakes
function as usual, if:
R you release the brake pedal.
R there
is no longer any danger of a rear-end
collision.
R no obstacle is detected in front of your
vehicle.
For BAS PLUS to assist you when driving, the
radar sensor system must be:
R switched on (Y page 241)
R operational ( Y page 262)
If the radar sensor system is malfunctioning,
BAS PLUS will not be available. The brake
system is still available with complete brake
boosting effect and BAS. G
WARNING
BAS PLUS cannot always clearly identify
objects and complex traffic situations. BAS
PLUS cannot intervene in these cases. There
is a risk of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else
covering the sensors
R snow or heavy rain
R interference by other radar sources
R the possibility of strong radar reflections,
for example in parking garages
R a narrow vehicle traveling in front, e.g. a
motorbike
R a
vehicle traveling in front on a different line
relative to the center of your vehicle 68
Driving safety systems
Safety

If the driver and front passenger have their
seat
belt fastened, PRE-SAFE ®
Brake can also
brake the vehicle automatically at speeds
from approximately 4 mph (7 km/h) to
approximately 124 mph (200 km/h).
Due to the nature of the system, particularly
complicated driving conditions may cause
unnecessary warnings or the unnecessary
intervention of PRE-SAFE ®
Brake.
You can prevent the intervention of the PRE-
SAFE ®
Brake at any time by:
R depressing the accelerator pedal further
R activating kickdown
R releasing the brake pedal.
The braking action of PRE-SAFE ®
Brake is
ended automatically if:
R you maneuver to avoid the obstacle.
R there is no longer any danger of a rear-end
collision.
R there is no longer an obstacle detected in
front of your vehicle.
With the help of the radar sensor system,
PRE-SAFE ®
Brake can detect obstacles that
are in front of your vehicle for an extended
period of time.
At speeds of up to 40 mph (70 km/h), PRE-
SAFE ®
Brake can also detect stationary
obstacles, for example, stopped or parked
vehicles.
If you approach an obstacle and PRE-SAFE ®
Brake detects a risk of a collision, the system
will alert you both visually and acoustically. If
you do not brake or take evasive action, the
system will warn you by automatically braking
the vehicle gently. If there is an increased risk
of collision, preventive passenger protection
measures (PRE-SAFE ®
) are activated
(Y page 54). If, at speeds over 20 mph
(30 km/h), a risk of collision remains and you
do not brake, take evasive action or
significantly accelerate, automatic braking
may be performed up to the level of
emergency braking. Automatic emergency
braking is not performed until immediately prior to an accident that can no longer be
avoided. G
WARNING
PRE-SAFE ®
Brake will initially brake your
vehicle by a partial application of the brakes
if
a danger of collision is detected. There may
be a collision unless you also brake.
Automatic emergency braking cannot prevent
a collision. There is a risk of an accident.
Always apply the brakes yourself and try to
take evasive action. G
WARNING
PRE-SAFE ®
Brake cannot always clearly
identify objects and complex traffic
conditions.
In these cases, PRE-SAFE ®
Brake may:
R give an unnecessary warning and then
brake the vehicle
R not give a warning or intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and be ready to brake, especially if
PRE-SAFE ®
Brake warns you. Terminate the
intervention
in a non-critical driving situation.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else
covering the sensors
R snow or heavy rain
R interference by other radar sources
R the possibility of strong radar reflections,
for example in parking garages
R a narrow vehicle traveling in front, e.g. a
motorbike
R a vehicle traveling in front on a different line
relative to the center of your vehicle G
WARNING
PRE-SAFE ®
Brake does not react:
R to people or animals
R to oncoming vehicles Driving safety systems
73
Safety
Z

make sure that there is sufficient clearance
above and behind the trunk lid/tailgate.
Do
not leave the SmartKey in the trunk/cargo
compartment. You could otherwise lock
yourself out.
Sedan without trunk lid remote closing
feature: the trunk lid can be:
R opened and closed manually from outside
R opened automatically from outside
R opened automatically from inside
R locked separately
R opened with the emergency release button
R unlocked with the mechanical key
Sedan with trunk lid remote closing
feature: the trunk lid can be:
R opened and closed manually from outside
R opened and closed automatically from
outside
R opened and closed automatically from
inside
R locked separately
R opened with the emergency release button
R unlocked with the mechanical key
Wagon: you can:
R open and close the tailgate manually from
outside
R open the tailgate manually from inside
(Wagon with a folding bench seat)
R open and close the tailgate automatically
from outside
R open and close the tailgate automatically
from inside
R limit the opening angle of the tailgate
R unlock the tailgate using the mechanical
key Opening/closing from outside
Opening Handle (example: Sedan)
X
Press the % button on the SmartKey.
X Sedan: pull handle :.
X Raise the trunk lid.
Wagon: if you pull handle : and keep it in
this position, you can open the tailgate
manually. If you release the handle, the
tailgate opens automatically.
Closing G
WARNING
To prevent possible personal injury, always
keep hands and fingers away from the cargo
compartment opening when closing the
tailgate. Be especially careful when small
children are around. Recess (example: Sedan)88
Trunk/cargo compartment
Opening/closing

X
Pull the trunk lid/tailgate down using
recess :.
X Wagon: allow the tailgate to drop into the
lock.
X If necessary, lock the vehicle with
the & button on the SmartKey
(Y page 79) or with KEYLESS-GO
(Y page 79).
i If a KEYLESS-GO key is detected in the
trunk/cargo compartment, the trunk lid/
tailgate will not lock.
Sedan: the trunk lid then opens again. Opening/closing automatically from
outside
Important safety notes G
WARNING
Ensure that the trunk lid/tailgate is closed
when the engine is running and the vehicle is
in motion. Among other dangers, deadly
carbon monoxide (CO) may enter the vehicle
interior and cause unconsciousness and even
death.
! The trunk lid/tailgate swings upwards
and to the rear when opened. Therefore,
make sure that there is sufficient clearance
above and behind the trunk lid/tailgate.
Opening You can open the trunk lid/tailgate
automatically using the SmartKey or the
handle in the trunk lid/tailgate.
X
Press and hold the F
button on the key
until the trunk lid/tailgate opens.
or
X If the trunk lid/tailgate is unlocked, pull the
handle
of the trunk lid/tailgate and let it go
again immediately ( Y page 88). Closing G
WARNING
Monitor the closing procedure carefully to
make sure no one is in danger of being
injured. To prevent possible personal injury,
always
keep hands and fingers away from the
trunk opening when closing the trunk lid. Be
especially careful when small children are
around. To stop the closing procedure, do one
of the following:
R Press button F on the SmartKey.
R Press the remote trunk opening/closing
switch (on the driver's door).
R Press the trunk closing switch.
R Press the KEYLESS-GO locking/closing
switch.
R Pull the trunk lid handle.
Even with the SmartKey removed from the
starter switch or the SmartKey with KEYLESS-
GO removed from the vehicle, the remote
trunk opening/closing switch can be
operated. Therefore, do not leave children
unattended in the vehicle, or with access to
an unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. Closing button and locking button (example:
Sedan)
:
Closing button
; Locking button
Sedan: on vehicles with the trunk lid remote
closing feature, you can close the trunk lid
automatically. On vehicles with trunk lid
remote
closing feature and KEYLESS-GO, you Trunk/cargo compartment
89
Opening/closing Z

can simultaneously close and lock the trunk
lid.
Wagon: on vehicles with KEYLESS-GO, you
can simultaneously close and lock the
tailgate.
X
To close: press closing button : in the
trunk lid/tailgate.
X To close and lock simultaneously:
Press closing button ; in the trunk lid/
tailgate.
i If you leave a KEYLESS-GO key in the
trunk/cargo compartment, the trunk lid/
tailgate will not lock. Opening/closing automatically from
inside
Important safety notes G
WARNING
Keep an eye on the area at the rear end of the
vehicle when operating the trunk lid/tailgate
with
the remote operating switch on the door.
Monitor the entire closing procedure to
ensure that there is no risk of injury to anyone
near the vehicle.
Release the switch on the door to interrupt
the closing procedure.
The remote operating switch can also be used
if the SmartKey has been removed from the
starter switch or the KEYLESS-GO key has
been removed from the vehicle. Never leave
children with no adult supervision in the
vehicle or with access to an unlocked vehicle.
If unsupervised children have access to a
vehicle, it could lead to an accident and/or
serious injury. G
WARNING
Ensure that the trunk lid/tailgate is closed
when
the engine is running and the vehicle is
in motion. Among other dangers, deadly
carbon monoxide (CO) may enter the vehicle
interior and cause unconsciousness and even
death. Opening/closing
X
To open: pull remote operating switch for
the
trunk lid/tailgate : until the trunk lid/
tailgate opens.
X To close (Sedan): press remote operating
switch for trunk lid : until the trunk lid is
closed.
X To close (Wagon): turn the SmartKey to
position 1 or 2 in the ignition lock.
X Press remote operating switch for
tailgate : until the tailgate is closed.
You can open and close the trunk lid/tailgate
from the driver's seat when the vehicle is
stationary and unlocked. Limiting the opening angle of the
tailgate (Wagon)
Important safety notes !
Make
sure there is sufficient clearance to
open the tailgate fully when setting the
opening angle. The tailgate could otherwise
be damaged. Ideally, set the opening angle
outside.
Arming You can limit the opening angle of the
tailgate. This is possible in the top half of its
opening range, up to approximately
8 in
(20 cm) before the stop. 90
Trunk/cargo compartment
Opening/closing

X
To open the tailgate: pull the handle on
the tailgate.
X To stop the opening procedure at the
desired
position: press the closing button
(Y page 89) in the tailgate or pull the handle
on the outside of the tailgate again.
X To store the position: press and hold the
closing
button in the tailgate until you hear
a short tone.
The opening angle limiter is activated. The
tailgate will now stop in the stored position
when opening.
Disarming X
Press and hold the closing button
(Y page 89) in the tailgate until you hear
two short tones. Opening the tailgate from inside the
vehicle (Wagon with a folding bench
seat)
General notes i
Opening dimensions of the trunk lid/
tailgate ( Y page 414).
Opening Inside of tailgate
X
To unlock the tailgate: slide locking
catch ; to the right.
X To open: pull the top of handle :.X
Swing the tailgate upwards.
X To lock the tailgate: slide locking
catch ; to the left. Locking the trunk separately (Sedan)
You
can lock the trunk separately. If you then
unlock the vehicle centrally, the trunk
remains locked and cannot be opened.
X Close the trunk lid.
X Take the mechanical key out of the
SmartKey (Y page 80). 1
Basic position
2 Locking
X Insert the mechanical key into the trunk lid
lock as far as the stop.
X Turn the mechanical key clockwise from
position 1 to position 2.
X Remove the mechanical key.
X Insert the mechanical key into the
SmartKey. Unlocking the trunk (Sedan)
! The trunk lid swings upwards when
opened.
Therefore, make sure that there is
sufficient clearance above the trunk lid.
If the trunk cannot be unlocked with the
SmartKey or KEYLESS-GO, use the
mechanical key.
If you use the mechanical key to unlock and
open the trunk lid, the anti-theft alarm system
will be triggered ( Y page 75). Trunk/cargo compartment
91
Opening/closing Z

X
Take the mechanical key out of the
SmartKey (Y page 80).
X Insert the mechanical key into the trunk lid
lock as far as the stop. 1
Neutral position.
2 To unlock
X Turn the mechanical key counter-clockwise
from position 1 as far as it will go to
position 2.
The trunk is unlocked.
X Turn the mechanical key back to position
1 and remove it.
X Insert the mechanical key into the
SmartKey. Trunk emergency release (Sedan)
You can open the trunk lid from inside the
vehicle with the emergency release button. X
Press emergency release button : briefly.
The trunk lid unlocks and opens. The trunk lid can be unlocked and opened
with the trunk lid emergency release when
the vehicle is stationary or while driving.
The trunk lid emergency release does not
open the trunk lid if the battery is
disconnected or discharged.
Trunk lid emergency release light:
R
emergency release button : flashes for
30 minutes after the trunk lid is opened
R emergency release button : flashes for
60 minutes after the trunk lid is closed Tailgate emergency release (Wagon)
Important safety notes !
The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that
there is sufficient clearance above and
behind the tailgate.
i Opening dimensions of the trunk lid/
tailgate ( Y page 414).
If the tailgate can no longer be opened from
outside the vehicle, use the emergency
release on the inside of the tailgate.
On vehicles with a folding bench seat, you can
use the handle to open the tailgate from
inside the vehicle ( Y page 88).
Opening 92
Trunk/cargo compartment
Opening/closing