
As a
result, Dis tance Pilot DISTRONIC may
nei ther give warnings nor inter vene in su ch
situations. #
Alw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times. &
WARNING Risk of accident due tolimi‐
te d de tectability of road users and traf fic
situations
Dis tance Pilot DISTRONIC cannot al ways
clear lyidentify other road users and complex
traf fic situations.
In these conditions, Dis tance Pil ot
DISTRONIC may:
R give an unnecessary warning and then
brake theve hicle
R neither give a warning nor inter vene
R accele rate or brake unexpectedly #
Continue driving with care and be ready
to brake, particular lyif Dis tance Pilot
DISTRONIC warnsyo u. &
WARNING Risk of accident due toinsuf‐
fi cient decele ration byDis tance Pilot
DISTRONIC
Dis tance Pilot DISTRONIC brakes your vehi‐
cle with up to50% of the maximum possible
braking po wer.If th is decele ration is not suf‐
fi cient, Dis tance Pilot DISTRONIC alerts you
with a visual and acoustic warning. #
Apply the brakes yourself in these situa‐
tions and try totake evasive action. &
WARNING Risk of accident due toDis‐
ta nce Pilot DISTRONIC still being activa‐
te d when you lea vethe driver's seat
If yo u lea vethe driver's seat while theve hicle
is being braked byDis tance Pilot DISTRONIC
only, it can rollaw ay inthefo llowing situa‐
tions:
R Ifth ere is a malfunction in the sy stem or
in the po wer supp ly. R
If Dis tance Pilot DISTRONIC is deacti va‐
te d with the cruise control le ver,e.g. by a
ve hicle occupant or from outside the
ve hicle.
R Ifth e electrics in the engine compart‐
ment, the battery or the fuses are tam‐
pered with.
R Ifth e battery is disconnected.
R Ifth eve hicle is accelerated, e.g. by a
ve hicle occupant. #
Alw ays deactivate Dis tance Pilot
DISTRONIC and secu retheve hicle to
pr eve nt it from rolling away before you
lea vethe driver's seat. &
WARNING Risk of accident due to
unknown stored speed
If yo u call up thestored speed and this is
lo we rth an your cur rent speed, theve hicle
decelerates.
If yo u do not kn owthestored speed, the
ve hicle could decelerate unexpectedl y. Driving and pa
rking 187

#
Take into account the tra ffic situation
before calling up thestored speed. #
Ifth estored speed is not known, store
th e desired speed again. &
WARNING Risk of accident due tounex‐
pec ted acceleration byDis tance Pilot
DISTRONIC
If Dis tance Pilot DISTRONIC no longer
de tects a vehicle in front, it may unexpect‐
edly accelerate tothe speed stored.
R This speed may be too high for a filter
lane or a slip road.
R If driving in theright lane, this speed may
be so high that you pass vehicles driving
on the left (in count ries where traf fic
drives on theright).
R If driving in the left lane, this speed may
be so high that you pass vehicles driving
on theright (in countri es where traffic
drives on the left). Alw
ays carefully obser vethe traf fic condi‐
tions and be ready tobrake at all times. &
WARNING Risk of accident due toDis‐
ta nce Pilot DISTRONIC pulling away auto‐
matically
If Dis tance Pilot DISTRONIC pe rforms an
automatic driving-off procedure, theve hicle
may accelerate unexpectedly.
Where necessar y,brake theve hicle yourself
and take evasive action. &
WARNING Risk of accident due toSpeed
Limit Pilot adapting theve hicle's speed
The speed adop tedby the Speed Limit Pilot
may be too high or incor rect in some individ‐
ual cases, su chas:
R inthewe t or in fog
R when towing a trailer
Ensure that the driven speed complies with
traf fic re gulations. Re
quirements:
R The vehicle has been star ted.
R The elect ric pa rking brake is released.
R Parking Pilot is not being used topark the
ve hicle or toexit from a parking space.
R ESP ®
is activated, but is not inter vening.
R The transmission is in position h.
R The driver's door, front passenger door and
there ar doors are closed.
R The engine bonnet is closed. 18 8
Driving and pa rking

R
Activating or deacti vating Steering Pilot or
Dis tance Pilot DISTRONIC
The driver mu stbe ready totake control of the
ve hicle at any time. Information on Hill
Start Assist Hill
Start Assist holds theve hicle when pulling
aw ay on a hill under thefo llowing conditions:
R Vehicles with automatic transmission:
The transmission is in position hork.
R The electric parking brake is released. &
WARNING Risk of accident and inju ry
caused bytheve hicle rolling away
Af ter a short time, Hill Start Assist no lon ger
holds theve hicle and it can rollaw ay. #
Therefore, swiftly mo veyour foot from
th e brake pedal tothe accelerator
pedal. Ne ver attem pttolea vetheve hi‐
cle if it is being held byHill Start Assist. HOLD function
HOLD function
The HOLD function holds
theve hicle at a stand‐
st ill without requ iring youto depress the brake
pedal, such as when pulling away on steep
slopes.
Sy stem limits
The incline must not be greaterth an 30%.
Ac tivating/deactivating the HOLD function &
WARNING Risk of an accident due tothe
HOLD function being active when you
lea vetheve hicle
If yo u lea vetheve hicle while only the HOLD
function is braking theve hicle, theve hicle
can rollaw ay inthefo llowing situations:
R Ifth ere is a malfunction in the sy stem or
in the po wer supp ly.
R Ifth e HOLD function is deactivated by
depressing the accelera tor pedal or the
brake pedal, e.g. byave hicle occupant. R
Ifth e electrics in the engine compart‐
ment, the battery or the fuses are tam‐
pered with.
R Ifth e battery is disconnected. #
Alw ays deactivate the HOLD function
and secure theve hicle against rolling
aw ay before leaving theve hicle. *
NO
TEDama gefrom auto matic braking If
Ac tive Brake Assi st, Dis tance Pilot
DISTRONIC or the HOLD function is activa‐
te d, theve hicle brakes automatically in cer‐
ta in situations.
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations: #
During towing #
In a car wash Re
quirements:
R The vehicle is stationar y. Driving and pa
rking 19 3

R
The driver's door is closed or the seat belt on
th e driver's side is fastened.
R The engine is running or has been au tomati‐
cally switched off bythe ECO start/ stop
function.
R The electric parking brake is released.
R Distan ce Pil otDISTRONIC is not acti vated.
R Vehicles with automatic transmission:
The transmission is in position h,kori.
Ac tivating the HOLD function #
Dep ress the brake pedal and af ter a short
time depress fur ther until theë display
appears in the multifunction displa y.#
Release the brake pedal.
Deactivating the HOLD function #
Depress the accelerator pedal topull away.
or #
Depress the brake pedal until theë dis‐
play disappears from the multifunction dis‐
pla y. The HOLD function is deactivated in
thefo llow‐
ing situations:
R If Dis tance Pilot DISTRONIC has been acti va‐
te d.
R Vehicles with automatic transmission:
When transmission position jis selected.
R When theve hicle is secured with the electric
parking brake.
In thefo llowing situations, theve hicle is held by
th e transmission position jorby the electric
parking brake:
R When the seat belt is unfas tened and the
driver's door is opened.
R When the engine is switched off.
R When there is a malfunction in the sy stem or
if th e po wer supp lyis insuf ficient.
Ve hicles with manual transmission:
The Brake immediately message may also
appear in the multifunction displa y: #
Immedia tely depress the brake pedal firm ly
until thewa rning message disappears.
The HOLD function is deactivated. A horn sounds at
regular inter vals if you turn off
th e engine, remo veyour seat belt and open the
driver's door while the HOLD function is activa‐
te d. If you attem pttolock theve hicle, the horn
to ne becomes louder. The vehicle cannot be
loc ked until you ha vedeactivated the HOLD
function.
% Once you ha veswitched off the engine, you
cannot restart the engine until you ha ve
deactivated the HOLD function. DY
NA MIC BODY CONT ROL DY
NA MIC BODY CONTROL has thefo llowing
ch aracteristics:
R Variable damping characteristics
R Continual adjustment of the damping forc es
The damping characteristics adapt tothe cur rent
operating and driving situation.
The da mping is tuned individually for each wheel
and is af fected bythefo llowing factors:
R The road sur face conditions
R The drive program selected 194
Driving and pa rking

#
When leaving theve hicle, make sure
th at nobody is in the vicinity of the
wheel ar ches or the underbody. Re
quirements:
R The vehicle's engine or must be switched on.
R The vehicle must not be moving fasterthan
60 km/h. Ra
ising the vehicle #
Press button 1.
Indica tor lamp 2lights up.
The vehicle is raised by25 mm compared
with the normal le vel.
Yo ur selection is sa ved. The
vehicle is lo wered again in thefo llowing sit‐
uations:
R When driving fasterthan 80 km/h.
R When driving between 60 km/h and
80 km/h for appro ximately thre e minutes.
R After selecting a drive program using the
DY NA MIC SELECT switch.
The vehicle is adjus tedto the height of the last
active drive program.
Lo weri ngtheve hicle #
Press button 1.
Indica tor lamp 2goes out. The vehicle is
adjus tedto the height of the last active drive
program. Driving and parking
197

Ve
hicles with 360° Camera
1 Parking Assist PARKTRONIC is on ly opera‐
tional in the front and rear
2 Parking Assist PARKTRONIC is operational
and can also warnthe driver about obs tacles
at the side of theve hicle
3 Obstacle de tected at the front right (orange)
and rear (red)
When you swit choff the ignition, thestored
obs tacles are del eted. Af terth e engine is restar‐
te d, obs tacles must be de tected again, before a
new warning can be issued. Sy
stem limitations
The sy stem limitations forPa rking Assist
PA RKTRONIC apply for passive side impact pro‐
te ction.
Objects placed next totheve hicle, or pedes‐
trians who approach the side of theve hicle will
not be de tected.
Deacti vating/acti vating PARKTRONIC
* NO
TERisk of an accident from objects
at close range Pa
rking Assist PARKTRONIC may not de tect
cer tain objects at close range. #
When pa rking theve hicle, pay particular
attention toany objects which are
abo veor below the sensors, e.g. flowe r‐
pots or dr awbars. The vehicle or other
objects could otherwise be damaged. If indicator lamp
1is not lit, Parking Assist
PA RKTRONIC is active. If the indicator lamp is lit
or theé symbol appears in the multifunction
displa y,Pa rking Assist PARKTRONIC is not
active. #
Press but ton2.
% Depending on theve hicle's equipment, the
button may also be located in the cent re
console.
% Parking Assist PARKTRONIC is automatical ly
activated when theve hicle is star ted. 200
Driving and parking

Ac
tivating/deactivating manoeuv ring assis‐
tance
Multimedia sy stem:
, Vehicle .
k Assistance .
Parking
Pilot .
Manoeuvring assist. #
Activate Oor deacti vate ª the function. AT
TENTION ASSI STFu
nction of ATTENTION ASSI ST
AT TENTION ASSIST assists you on long, mon oto‐
nous journe ys, e.g. on mo torw ays and trunk
ro ads. If ATTENTION ASSIST de tects indicators
of fatigue or increasing lapses in concentration
on the part of the driver, it suggests taking a
brea k.
AT TENTION ASSIST is only an aid. It cannot
alw ays de tect fatigue or lapses in concentration
until too late. The sy stem is not a substitute for a
we ll-res ted and attentive driver. On long jour‐
ne ys,tak ere gular breaks in good time that allow
fo r adequ aterecuperation.
Yo u can choose between two settings.
R Standard: normal sy stem sensitivity R
Sensitive: higher system sensitivity. The
driver is warned earlier and the attention
le ve l de tected byATTENTION ASSIST is adap‐
te d accordingly.
If dr owsiness or inc reasing lapses in concentra‐
tion are de tected, theATTENTION ASSIST: Take
a break! warning appears in the Instrument Dis‐
pla y.Yo u can ackn owledge the message and
ta ke a break where necessar y.Ifyo u do not take
a break and ATTENTION ASSIST continues to
de tect increasing lapses in concentration, you
will be warned again af ter a minimum of
15 minutes. Yo
u can ha vethefo llowing status information for
AT TENTION ASSIST displa yed in the assis tance
menu of the on-board computer:
R The length of the journey since the last
break.
R The attention le vel de term ined byATTENTION
ASSIS T.
if AT TENTION ASSIST is unable tocalculate the
attention le vel and cannot issue a warning, the
System suspended messageappears.
If a warning is given in the Instrument Displa y,
th e multimedia sy stem of fers to sear chfor a rest
area. You can select a rest area and start naviga‐
tion tothis rest area. This function can be activa‐
te d and deactivated in the multimedia sy stem.
If AT TENTION ASSIST is deactivated, theé
symbol appears in the assis tance graphic in the
Instrument Display when the engine is running.
AT TENTION ASSIST is activated automatically
when the engine is re-sta rted. The last selected
sensitivity le velre mains stored. 218
Driving and pa rking

Sy
stem limitations
AT TENTION ASSIST is active in the 60 km/h to
200 km/h speed range.
The functionality of ATTENTION ASSIST is
re stricted, and warnings may be dela yed or not
occur at all in thefo llowing situations:
R Ifyo u ha vebeen driving for less than 30
minutes.
R Ifth ero ad condition is poor (une venro ad
sur face or po tholes).
R Ifth ere is a strong side wind.
R Ifyo u adopt a sporty driving style (high cor‐
nering speeds or high rates of acceleration).
R Ifth eSt eering Pilot function of Dis tance Pil ot
DISTRONIC is acti ve.
R Ifth e time has been set incor rectly.
R In acti vedriving situations, if youch ange
lanes and vary your speed frequentl y.
The ATTENTION ASSIST tiredness or alertness
assessment is dele ted and restar ted when con‐
tinuing the journey in thefo llowing situations:
R Ifyo u swit choff the engine. R
Ifyo u unfas tenyo ur seat belt and open the
driver's door (e.g. change drivers or take a
break).
Ac tivating/deactivating ATTENTION ASSI ST
Multimedia sy stem:
, Vehicle .
k Assistance .
ATTEN-
TION ASSIST
Selection options #
Select Standard, SensitiveorOff. Tr
af fic Sign Assist Fu
nction of Traf fic Sign Assist Tr
af fic Sign Assi stdetects traf fic signs wi thmul‐
tifunction camera 1and assi stsyo uby display‐
ing de tected speed limits and overtaking restric‐
tions in the instrument clus ter.If th e sy stem
de tects that you are driving on toa section of
ro ad in the wrong direction, it triggers a warning. Driving and parking
219