
Folding in/out (automatically
)....... 123
Folding in/out (electrically). ..........123
Folding in when locking (on-board
computer) ...................................... 286
Out of position (troubleshooting) ...123
Setting ........................................... 123
Storing settings (memory function) 125
Storing the parking position ..........124
Eyeglasses compartment .................342 F
Filler cap see Fuel filler flap
Flat tire
MOExtended tires ..........................387
Preparing the vehicle .....................387
TIREFIT kit ...................................... 388
see Emergency spare wheel
Floormats ........................................... 367
Folding the rear bench seat
forwards/back .................................. 344
Fording Off-road ......................................... 195
On flooded roads ........................... 195
Front windshield
see Windshield
Fuel
Additives ........................................ 447
Consumption statistics ..................275
Displaying the current
consumption .................................. 276
Displaying the range ......................276
Driving tips .................................... 192
Fuel gauge ....................................... 33
Grade (gasoline) ............................ 446
Important safety notes ..................446
Low outside temperatures .............448
Premium-grade unleaded gasoline .446
Problem (malfunction) ...................185
Quality (diesel )............................... 447
Refueling ........................................ 182
Tank content/reserve fuel .............446
Fuel filler flap
Opening ......................................... 184
Fuel filter (display message) ............309Fuel level
Calling up the range (on-board
computer) ...................................... 276
Fuel tank
Capacity ........................................ 446
Problem (malfunction) ...................185
Fuses
Allocation chart ............................. 400
Before changing ............................. 400
Dashboard fuse box .......................401
Fuse box in the engine
compartment ................................. 401
Fuse box under rear bench seat ....402
Important safety notes ..................400 G
Garage door opener Clearing the memory .....................367
General notes ................................ 364
Important safety notes ..................364
Opening/closing the garage door ..367
Programming (button in the rear-
view mirror) ................................... 364
Gear indicator (on-board computer) 287
Genuine parts ...................................... 23
Glove box ........................................... 341
GTW (Gross Trailer Weight)
(definition) ......................................... 425 H
Handbrake see Parking brake
Hazard warning lamps ......................132
Headlamps Fogging up ..................................... 135
see Automatic headlamp mode
Head restraints
Adjusting ....................................... 108
Adjusting (electrically) ...................109
Adjusting (manually). .....................109
Adjusting (rear) .............................. 110
Installing/removing (rear) ..............110
Luxury ............................................ 109
Heating
see Climate control Index
11

Recognition by the radar sensor system is
also impaired in the event of:
R dirt on the sensors or anything else
covering the sensors
R there is interference by other radar sources
R there are 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
Following damage to the front end of the
vehicle, have the configuration and operation
of the radar sensors checked at a qualified
specialist workshop. This also applies to
collisions at low speeds where there is no
visible damage to the front of the vehicle.
Function X
To activate/deactivate: activate or
deactivate PRE-SAFE ®
Brake in the on-
board computer (Y page 281).
If the PRE-SAFE ®
Brake is not activated, the
æ symbol appears in the multifunction
display.
Starting at a speed of around 4 mph
(7 km/h), this function warns you if you
rapidly approach a vehicle in front. An
intermittent warning tone will then sound and
the · distance warning lamp will light up
in the instrument cluster.
X Brake immediately to defuse the situation.
or
X Take evasive action provided it is safe to do
so.
PRE-SAFE ®
Brake can also brake the vehicle
automatically under the following conditions:
R the driver and front-passenger have their
seat belts fastened
and
R the vehicle speed is between
approximately 4 mph (7 km/h) and
124 mph (200 km/h) At speeds of up to approximately 40 mph
(70 km/h) PRE-SAFE ®
Brake can also detect
stationary objects. Examples of stationary
objects are stopped or parked vehicles.
i If there is an increased risk of collision,
preventive passenger protection measures
(PRE-SAFE ®
) are activated.
If the risk of collision with the vehicle in front
remains and you do not brake, take evasive
action or accelerate significantly, the vehicle
may perform automatic emergency braking,
up to the point of full brake application.
Automatic emergency braking is not
performed until immediately prior to an
imminent accident.
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 collision.
R there is no longer an obstacle detected in
front of your vehicle.
If you have activated DSR (Y page 256), PRE-
SAFE ®
Brake is deactivated. STEER CONTROL
General information STEER CONTROL helps you by transmitting a
noticeable steering force to the steering
wheel in the direction required for vehicle
stabilization.
This steering assistance is provided in
particular if:
R both right wheels or both left wheels are on
a wet or slippery road surface when you
brake.
R the vehicle starts to skid. 76
Driving safety systemsSafety

Stopping
G
WARNING
When leaving the vehicle, even if it is braked
only by DISTRONIC PLUS, it could roll away if:
R there is a malfunction in the system or in
the voltage supply.
R DISTRONIC PLUS has been deactivated
with the cruise control lever, e.g. by a
vehicle occupant or from outside the
vehicle.
R the electrical system in the engine
compartment, the battery or the fuses have
been tampered with.
R the battery is disconnected.
R the accelerator pedal has been depressed,
e.g. by a vehicle occupant.
There is a risk of an accident.
If you wish to exit the vehicle, always turn off
DISTRONIC PLUS and secure the vehicle
against rolling away.
If DISTRONIC PLUS detects that the vehicle
in front is stopping, it brakes your vehicle until
it is stationary.
Once your vehicle is stationary, it remains
stationary and you do not need to depress the
brake.
After a time, the electric parking brake
secures the vehicle and relieves the service
brake.
Depending on the specified minimum
distance, your vehicle will come to a standstill
at a sufficient distance behind the vehicle in
front. The specified minimum distance is set
using the control on the cruise control lever.
The electric parking brake automatically
secures the vehicle if DISTRONIC PLUS is
activated and:
R the driver's door is open and the driver's
seat belt is unfastened.
R the engine is switched off, unless it is
automatically switched off by the ECO
start/stop function. R
a system malfunction occurs.
R the power supply is not sufficient.
On steep uphill or downhill inclines or if there
is a malfunction, the transmission may also
automatically be shifted into position P.
Setting a speed Keep in mind that it may take a brief moment
until the vehicle has accelerated or braked to
the speed set.
X Press the cruise control lever up :for a
higher speed or down ;for a lower speed.
X To adjust the set speed in 1 mph
increments (1 km/h increments): briefly
press the cruise control lever up :or
down ;to the pressure point.
Every time the cruise control lever is
pressed up :or down ;the last speed
stored is increased or reduced.
X To adjust the set speed in 5 mph
increments (10 km/h increments):
briefly press the cruise control lever
up : or down ;to the pressure point.
Every time the cruise control lever is
pressed up :or down ;, the last speed
stored is increased or reduced.
i If you accelerate to overtake, DISTRONIC
PLUS adjusts the vehicle's speed to the last
speed stored after you have finished
overtaking. 208
Driving systemsDriving and parking

You will see a message in the multifunction
display, for example: Lowering
Lowering . HOLD function
General notes The HOLD function can assist the driver in the
following situations:
R when pulling away, especially on steep
slopes
R when maneuvering on steep slopes
R when waiting in traffic
The vehicle is kept stationary without the
driver having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
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 function cannot hold the vehicle
on such surfaces.
Important safety notes G
WARNING
When leaving the vehicle, it can still roll away
despite being braked by the HOLD function if:
R there is a malfunction in the system or in
the voltage supply.
R the HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant.
R the electrical system in the engine
compartment, the battery or the fuses have
been tampered with.
R the battery is disconnected
There is a risk of an accident.
If you wish to exit the vehicle, always turn off
the HOLD function and secure the vehicle
against rolling away. !
If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes
automatically in certain situations. To
prevent damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or other similar situations:
R when towing the vehicle
R in the car wash
Deactivating the HOLD function
(Y page 217).
Activation conditions You can activate the HOLD function if:
R
the vehicle is stationary
R the engine is running
R the driver's door is closed or your seat belt
is fastened
R the electric parking brake is released
R the transmission is in position D,Ror N
R DISTRONIC PLUS is deactivated
Activating the HOLD function X
Make sure that the activation conditions
are met.
X Depress the brake pedal.
X Quickly depress the brake pedal further
until :appears in the multifunction
display.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake pedal the first
time does not activate the HOLD function,
wait briefly and then try again. 216
Driving systemsDriving and parking