warning light MERCEDES-BENZ V-CLASS 2021 Owner's Guide

Err
Err
or mode of t
or mode of t he digit
he digital r
al rear
ear vie
view mirr
w mirr or
or
If a system er ror occurs, e.g. if the camera fails, a
crossed-out camera will appear at theto p leT of
th e display and no camera image will be visible in
th e mir ror. #
Switch tothe standard rearview mir ror if there
is a system er ror. A
A
ut
ut omatic anti-dazzle mirr
omatic anti-dazzle mirr or
ors function
s function &
W
WARNING
ARNING Risk of acid burns and poison-
ing due tothe anti-dazzle mir ror electro-
ly te
Electrolyte may escape if the glass in an auto-
matic anti-dazzle mir ror breaks.
The electrolyte is hazardous tohealth and cau-
ses ir rita tion. It must not come into contact
with your skin, eyes, respiratory or gans or
clo thing or be swallo wed. #
Ifyo u come into contact with electrolyte,
obser vethefo llowing:
R Immediate lyrinse the electrolyte
from your skin with water and seek
medical attention.
R If electrolyte comes into contact with
your eyes, immediately rinse them
th oroughly with clean water and seek
medical attention.
R Ifth e electrolyte is swallo wed, imme-
diately rinse your mouth out thor-
oughl y.Do not induce vomiting. Seek
medical attention immediatel y.
R Immediately change out of clo thing
which has been contaminated with
electrolyte.
R If an allergic reaction occurs, seek
medical attention immediatel y.The inside
rearview mir ror and the outside mir ror
on the driver's side will automatically go into anti-
dazzle mode if light from a headlamp hits the sen-
sor on the inside rearview mir ror.
Syst
Syst em limits em limits
The system will not go into anti-dazzle mode if:
R theve hicle is switched o.
R reve rsege ar is engaged.
R the interior lighting is switched on.
R the incident light from the headlamps is
bloc kedby objects in the load compartment, fo
rex ample, and does not hit the sensor on
th e inside rearview mir ror. Oper
Oper
ating sun visors
ating sun visors #
Glar
Glar e fr
e from fr
om fr ont
ont::Fo ldthe sun visor 1down-
wa rds. #
Glar
Glar e fr
e from t
om t he side:
he side: Swivelth e sun visor 1to
th e side. 122
122
Light and vision

th
e "Cooling with air dehumidi/cation" function
is switched on. Conv
Conv
enience opening/closing
enience opening/closing &
W
WARNING
ARNING Risk of entrapment due tonot
paying attention during con venience clos-
ing
When the con venience closing feature is oper-
ating, parts of the body could become trapped
in the closing area of the side windo ws. #
When the con venience closing feature is
operating, moni torth e entire closing
process and make sure that no body
parts are in the closing area. &
W
WARNING
ARNING Risk of entrapment when open-
ing a side window
When opening a side windo w,parts of the body
could be dr awn in or become trapped between
th e side window and window frame. #
When opening, make sure that nobody is
to uching the side windo w. #
Release the button immediately if some-
body becomes trapped. #
Conv
Conv enience closing wit
enience closing wit h t
h the air
he air -r
-r ecir
ecir culation
culation
r
r ock
ock er switc
er switc h:
h:press and hold theg rock er
switch up or down until the side windo ws auto-
matically close.
The indicator lamp overth eg rock er switch
lights up. The initial position of the side win-
do ws is stored. Air-recirculation mode is acti-
va ted.
If yo u open the side windo wsmanually aTer
using con venience closing, they /rst open
au tomatically tothe initial position before con-
ve nience closing. #
T To int
o int err
errup
upt conv
t conv enience closing:
enience closing: release the
g rock er switch. #
Conv
Conv enience opening wit
enience opening wit h t
h the air
he air -r
-recir
ecir culation
culation
r
r ock
ock er switc
er switc h:
h:press and hold theg rock er
switch up or down until the side windo ws auto-
matically open.
The indicator lamp overth eg rock er switch
goes out. Air-recirculation mode is deactivated. #
T To int
o int err
errup
upt conv
t conv enience opening:
enience opening: release the
g rock er switch. #
Pr
Pre-entr
e-entr y climat
y climat e contr
e control and conv
ol and conv enience
enience
opening wit
opening wit h t
h t he key
he key :
:press and hold the%
button on thekey.
The side wind ows are automatically opened
and the climate control blo wer is activated. #
T
To int
o int err
errup
upt conv
t conv enience opening:
enience opening: release the
% button. Switc
Switc
hing t
hing t he r
he rear windo
ear windo w heat
w heater
er on/o.
on/o. The
rear wind owheater consumes a lot of elect ric-
ity. You should therefore switch o. there ar win-
dow heater as soon as there ar wind owis clear. #
Switch on theve hicle. #
Press theto p or bottom of the¤ rock er
switch.
If th e indicator lamp abo vethe¤ rock er
switch lights up, there ar wind owheater is
switched on.
The rear wind owheater will switch o. automati-
cally aTer a fewminutes. Switc Switc
hing t
hing t he r
he residual heat utilisation
esidual heat utilisation on/o.
on/o. When
theve hicle is switched o., it is possible to
make use of there sidual heat of the engine toheat
or ventila tetheve hicle interior for appr oximately
30 minutes. The heating or ventilation time
depends on the set vehicle interior temp erature. #
Switch o. theve hicle or remo vethekey. #
T
To switc
o switc h on:
h on:press theto p or bottom section
of the! rock er switch or press Á.
When residual heat utilisation is switched on,
th e indicator lamp abo vethe! rock er
switch or theÁ button will light up.
The blo wer will run at a low speed rega rdless
of the air0ow setting.
If th e "Residual heat" function is switched on at
high outside temp eratures, only the stationary
ve ntilation will be switched on. The blo wer will
th en run at medium speed. #
T
To switc
o switc h
ho.:
o.: press theto p or bottom section
of the! rock er switch or press Áagain.
The indicator lamp abo vethe! rock er
switch or theÁ button goes out.
Re sidual heat utilisation will switch o. automati-
cally in thefo llowing cases:
R aTer a running time of app roximately
30 minutes
R ifth e star ter battery's charge status is too low 128
128
Climate control

*
N NO OTE
TE Damage totheve hicle due tonot
observing the maximum permitted head-
ro om clearance If
th eve hicle height is greater than the maxi-
mum permitted headroom clearance, thero of
and other parts of theve hicle may be dam-
aged. #
Obser vethe signposted headroom clear-
ance. #
Ifth eve hicle height is greater than the
permitted headroom clearance, do not
enter. #
Obser vethech anged vehicle height with
add-on roof equipment. N No
ot
tes on shor
es on shor t-dist
t-distance tr
ance tr ips
ips
If th eve hicle is predominantly used in short-dis-
ta nce driving, a fault in the automatic cleaning
function of the diesel particulate /lter can occur.
Due tothis, fuel may also accumulate inthe engine
oil and cause engine failure.
During automatic cleaning, extremely hot exhaust
ga ses escape from theex haust pipe. Main tain a
distance of at least 1 m toother objects, e.g.
par kedve hicles, in order toavo id material damage.
If yo u mainly drive short distances, you should
drive on a mo torw ay or go for a country drive for
20 minutes every 500 km. This facilitates the
re ge neration of the diesel particulate /lter.
Inf
Inf or
ormation about tr
mation about tr anspor
ansport b
t by r
y rail
ail
Tr ansporting your vehicle byrail may be subject to
cer tain restrictions or requ ire special measures to
be take n in some countries due tovarying tunnel
heights and loading standards.
Yo u can obtain information about this from a
Mercedes-Benz Service Centre.
Inf
Inf or ormation on br
mation on br ak
ak es
es &
W
WARNING
ARNING Risk of accident due tothe
brake system overheating
If yo u lea veyour foot on the brake pedal when
driving, the brake system may overheat.
This increases the braking distance and the
brake system can even fail. #
Never use the brake pedal as a foot re st. #
Do not depress the brake pedal and the
accelerator pedal at the same time while
driving. *
N NOOTE TE Causing wearto the brake linings by
permanently depressing the brake pedal #
Do not permanently depress the brake
pedal while driving. #
Touse braking e.ect of the engine, shiT
to a lo werge ar in good time. Do
Do
wnhill gr
wnhill gradients
adients
On long and steep downhill gradients you should
obser vethefo llowing inst ructions:
R invehicles with an automatic transmission,
shiT down toshiT ranges 2 2or 1 1in good time
so that the engine is running at a medium to
high engine speed (/ page 143).
R invehicles with a manual transmission, shiT
down toa lo werge ar in good time, so that the
engine is running at a medium tohigh engine
speed.
% Change the shiT range in good time when
cruise control or the limiter are activated.
Obser vethe driving tips (/ page 137).
Yo uth ereby make use of the braking e.ect of the
engine and do not ha vetobrake as oTen tomain-
ta in the speed. This relie vesth e load on the
service brake and pr events the brakes from over-
heating and wearing tooqu ickl y.
Hea
Hea vy and light loads
vy and light loads
If th e brakes ha vebeen subjected toa heavy load,
do not stop theve hicle immediatel y.Drive on for a
short while. The brakes cool down more quickly in
th e air0o w.
If th e brakes ha vebeen used only moderatel y,you
should occasionally test their e.ectiveness. Todo
th is, brake more /rmly from a higher speed while
paying attention tothe tra1c conditions. The
brakes will grip better as a result.
We
We t r
t road surf
oad surf aces
aces
If yo u ha vebeen driving for a long time in heavy
ra in without braking, there may be a dela yed
re sponse when you /rst apply the brakes. This may
also occur aTer driving thro ugh a car wash or deep
wa ter. Yo u must depress the brake pedal more
/rml y.Maintain a greater distance totheve hicle in
front.
While paying attention tothe tra1c conditions, you
should brake theve hicle /rml yaTer driving on a
we tro ad sur face or thro ugh a car wash. This heats
th e brake disks so that they dry more quickl y,
which pr otects them against cor rosion. 138 138
Driving and parking

Emerg
Emerg
ency br
ency br aking
aking
If, in exceptional cases, the service brake fails, you
can use the parking brake toper form emer gency
braking. The braking distance is then considerably
gr eater. #
While driving, press switch 1ofthe electric
parking brake.
The vehicle is braked as long as youke ep
switch 1ofthe electric parking brake
depressed.
The vehicle's brake lights light up.
The lon ger electric parking brake switch 1is
depressed, thegr eater the braking forc e.
During the braking procedure, you will receive the
fo llowing feedback from theve hicle:
R Awa rning tone sounds.
R The Release parking brake messageappears
in the inst rument cluster.
R The red! indicator lamp 0ashes in the
inst rument cluster.
When theve hicle has been braked toa standstill,
th e electric parking brake is applied. P P
ar
ar king up t
king up t he v
he vehicle
ehicle P
P
ar
ar king up t
king up t he v
he vehicle f
ehicle f or long
or longer t
er than f
han f our w
our w eeks
eeks #
Connect the star ter battery toa trickle charger
via a jump-start connection (/ page 240).
or #
Disconnect all bat teries (/ page 242).
P
P ar
ar king up t
king up t he v
he vehicle f
ehicle f or long
or longer t
er than six w
han six w eeks
eeks #
Contact a quali/ed specialist workshop and
seek advice.
The vehicle can otherwise su.er damage as a
re sult of lack of use. Dr Dr
iving and dr
iving and dr iving safe
iving safe ty syst
ty systems
ems N
No
ot
t es on dr
es on dr iving syst
iving syst ems and y
ems and y our r
our responsibility
esponsibility Yo
ur vehicle is equipped with driving systems
which assist you in driving, parking and manoeu-
vring theve hicle. The driving systems are only
aids. They are not a substitute foryo u paying
attention toyour sur roundings and do not relie ve
yo u of your responsibility per taining toroad tra1c
la w. The driver is alw aysre sponsible for maintain-
ing a safe distance totheve hicle in front, forve hi-
cle speed, for braking in good time and for st aying
in lane. Alw ays pay attention tothe tra1c and inter
vene if necessar y.Be awa reofthe limitations
re ga rding the safe use of these systems.
Driving systems can neither reduce therisk of
accident if youfa ilto adapt your driving style nor
ove rride the la wsof ph ysics. They cannot alw ays
ta ke into account road, weather or tra1c condi-
tions. Inf
Inf
or
ormation on v
mation on v ehicle sensor
ehicle sensor s and camer
s and cameras
as Some driving and driving saf
ety systems use cam-
eras and radar or ultrasonic sensors tomonitor the
area in front of, behind or next totheve hicle. 1
Cameras in the outside mir rors
2 Multifunction camera
3 Front camera
4 Ultrasonic sensors
5 Reversing camera
% Depending on theve hicle's equipment, the
ra dar sensors are integ rated on the side of the
re ar bumpers and/or behind the Mercedes
star in thera diator grille. &
W
WARNING
ARNING Risk of accident due torestric-
te d de tection per form ance of vehicle sen-
sors and cameras
If th e area around vehicle senso rsor cameras
is co vered, damaged or dirty, cer tain driving
and saf ety systems cann otfunction co rrectl y.
There is a risk of an accident. #
Keep the area around vehicle senso rsor
cameras clear of any obstructions and
clean. #
Have damage tothe bumper, radiator
gr ille or stone chipping in the area of the 152 152
Driving and parking

front and
rear wind owsre paired at a
qu ali/ed specialist workshop. Ke
ep the areas of the cameras and sensors free of
dirt, ice and slush (/ page 232). The sensors and
cameras must not be co vered and the de tection
ra nges around them must be kept free. Do not
attach additional license pla tebrac kets, advertise-
ments, stic kers,fo ils or foils toprotect against
stone chippings in the de tection range of the sen-
sors and cameras. Make sure that there are no
ove rhanging loads pr otru ding into the de tection
ra nge.
In theev ent of damage, or following a se vere
impact, ha vethe function of the sensors checked
at a quali/ed specialist workshop. Ha vedamage or
stone chipping in the area of the cameras repaired
at a quali/ed specialist workshop. Ov
Ov
er
ervie
vie w of dr
w of dr iving syst
iving syst ems and dr
ems and dr iving safe
iving safety sy
ty sys-
s-
t
t ems
ems In
this section, you will /nd information about the
fo llowing driving systems and driving saf ety sys-
te ms:
R ABS (A Anti-lock B Braking S System) (/ page 153)
R BAS (BB ra ke A Assist S System) (/ page 153)
R ESP ®
(EElectronic S Stability P Program)
(/ page 153)
R EBD (E Electronic B Brakeforc e DDistribution)
(/ page 155)
R Active Brake Assist (/ page 155)
R Adaptive brake lights (/ page 157)
R Cruise cont rol (/ page 157) and limiter
(/ page 157)
R Active Distance Assist DISTRONIC
(/ page 161)
R Hill start assist (/ page 164)
R HOLD function (/ page 164)
R Parking Assist PARKTRONIC (/ page 165)
R Reversing camera (/ page 166)
R 360° Camera (/ page 168)
R Active Parking Assist (/ page 170)
R ATTENTION ASSIST (/ page 173)
R Tra1c Sign Assist (/ page 174)
R Blind Spot Assist (/ page 174)
R Lane Keeping Assist (/ page 176) F
F
unction of ABS (Anti-loc
unction of ABS (Anti-loc k Br
k Braking Syst
aking Syst em)
em) ABS controls
the brake pressure in critical situa-
tions:
R the wheels are pr evented from locking during
braking, forex ample at maximum full-stop
braking or when there is insu1cient tyre trac-
tion
R the steerability of theve hicle in term s of ph ysi-
cal possibilities is ensured when braking
If ABS inter venes, you will feel pulsations in the
brake pedal. The pulsating brake pedal may be an
indication of hazardous road conditions and func-
tions as a reminder totake extra care while driving. F
F
unction of B
unction of B AS (Br
AS (Brak
ake Assis
e Assist Syst t System)
em) BAS
supports you with additional braking forc e in
an emer gency braking situation.
If yo u depress the brake pedal quickl y,BAS is acti-
va ted:
R BAS automatically boosts the braking forc e of
th e brakes
R BAS can shor tenth e braking distance
R ABS pr events the wheels from locking
When youre lease the brake pedal, the brakes
function as usual again. BASis deactivated. F
F
unction of ESP
unction of ESP ®
®
(Electr
(Electr onicSt
onic Stability Pr
ability Pr ogr
ogram)
am) &
W
WARNING
ARNING Risk of skidding if ESP ®
is deac-
tivated
If yo u deactivate ESP ®
, ESP ®
cannot car ryout
ve hicle stabilisation. #
ESP ®
should only be deacti vated in the
fo llowing situations. ESP
®
can, within ph ysical limits, monitor and
impr ovedriving stability and traction in thefo llo w-
ing situations:
R when driving and pulling away on wet or slip-
pery road sur faces
R when braking Driving and parking
153
153

If
th eve hicle is deviating from the direction
desired bythe driver, ESP ®
can stabilise theve hi-
cle byper form ing thefo llowing actions:
R one or more wheels are braked
R the engine output is adap ted according tothe
situation
% Only use wheels with there commended tyre
sizes. Only then will ESP ®
function proper ly.
If th e÷ warning lamp 0ashes in the instrument
cluster, one or more wheels ha vereached their
traction limit:
R adapt your driving style tosuit the pr evailing
ro ad and weather conditions
R do not deacti vate ESP ®
under any circumstan-
ces
R only depress the accelerator pedal as far as is
necessary when pulling away
Deactivate ESP ®
in thefo llowing situations to
impr ovetraction:
R When using snow chains.
R In deep sno w.
R On sand or grav el.
% Spinning the wheels results in a cutting action,
which enhances traction.
If th e÷ warning lamp lights up continuousl y,
ESP ®
is not available due toa malfunction.
Obser vethe information on warning lamps and dis-
play message s (/page 304).
When ESP ®
is deacti vated, theå warning lamp
in the inst rument cluster lights up continuousl y.
Obser vethefo llowing points when ESP ®
is deacti-
va ted:
R vehicle stabilisation is dela yed and is signi/-
cant lyreduced in the lo wer speed range
R the drive wheels may start tospin
R traction cont rol is still active
% If ESP ®
is deactivated, ESP ®
will still support
yo u when braking. Deactiv
Deactiv
ating or activ
ating or activ ating ESP
ating ESP®
®
using t
using t he on-board
he on-board
com
com put
puter
er On-board computer:
4 ò 5
Settings 5
Assistance 5
ESP
Ad justing settings using the on-board computer is
only available on vehicles without theå button
on the centre console. #
T
To deactiv
o deactiv at
ate/activ
e/activ at
ate:
e: press thea button.
If ESP ®
is deactivated, theå warning lamp
in the inst rument cluster lights up.
% Obser vethe information on warning lamps and
display message s (/page 304). Deactiv
Deactiv
ating or activ
ating or activ ating ESP
ating ESP®
®
using t
using t he butt
he butt on
on #
Press button 1.
The å warning lamp in the instrument clus-
te r goes on when ESP ®
is deactivated.
% Obser vethe information on warning lamps and
display message s (/page 304). F
F
unction of ESP
unction of ESP ®
®
Cr
Cr osswind Assist
osswind Assist ESP
®
Crosswind Assist de tects sudden gusts of
side wind and helps the driver tokeep theve hicle
in the lane:
R ESP ®
Crosswind Assist is active at vehicle
speeds abo veappr ox. 80 km/h when driving
straight ahead or cornering slightl y.
R The vehicle is stabilised bymeans of individual
brake application on one side. The instrument
cluster displa ysa message with the tra1c sign
fo r a strong crosswind. 154 154
Driving and parking

ESP
®
Crosswind Assist does not react under the
fo llowing conditions:
R The vehicle is subjected tosevere jolts and
vibrations, e.g. as a result of une ven sur faces
or po tholes.
R The vehicle loses traction, e.g. on snow or ice
or when aquaplaning. F
F
unction of ESP
unction of ESP ®
®
tr
trailer st
ailer st abilisation
abilisation &
W
WARNING
ARNING Risk of accident in poor road
and weather conditions
In poor road and weather conditions, the trailer
stabilisation cannot pr event lur ching of the
ve hicle/trailer combination. Trailers with a high
cent reofgrav ity may tip over before ESP ®
de tects this. #
Always adapt your driving style tosuit the
cur rent road and weather conditions. When
you are driving with a trailer, ESP ®
trailer
stabilisation can stabilise your vehicle if it begins
to swer vefrom side toside:
R Ifth e system de tects the trailer, ESP ®
trailer
stabilisation is active at speeds abo veappr ox-
imately 65 km/h.
R Minor swerving is reduced byatarg eted, indi-
vidual brake application on one side.
R Intheev ent of se vere swerving, the engine
output is also reduced and all wheels are
braked. F
F
unction of EBD (Electr
unction of EBD (Electr onic Br
onic Brak
akef
efor
or ce Dis
ce Distr tribu-
ibu-
tion)
tion) EBD has
thefo llowing characteristics:
R moni toring and controlling the braking forc e on
th ere ar wheels
R impr oving driving stabilisation when braking,
especially on bends F
F
unction of A
unction of A ctiv
ctive Br
e Br ak
ake Assist
e Assist Ac
tive Brake Assist consists of thefo llowing func-
tions:
R Distance warning function
R Autonomous braking function
R Situation-dependent brake forc e boosting Ac
tive Brake Assist can help youto minimise the
ri sk of a collision with vehicles, cyclists or pedes-
trians, or reduce the e.ects of such a collision.
If Ac tive Brake Assist has de tected a risk of colli-
sion, a warning tone sounds and theL warning
lamp lights up in the instrument cluster.
If yo u do not react tothewa rning, autonomous
braking can be initiated in critical situations. In
especially critical situations, Active Brake Assist
can initiate autonomous braking directl y.In this
case, thewa rning lamp and warning tone are acti-
va ted simultaneously with the braking application.
If yo u apply the brake yourself in a situation de tec-
te d as critical byActive Brake Assist, or app lythe
brake during autonomous braking, situation-
dependent brake forc e boosting occurs. The brake
pressure increases up tomaximum full-s top brak-
ing if necessar y.
If autonomous braking or a situation-dependent
braking boosting e.ect has occur red, theL
wa rning lamp 0ashes brie0y and then goes out.
V
V ehicles wit ehicles wit h PRE-S
h PRE-S AFE
AFE®
®
:
:if th e autonomous brak-
ing function or the situation-dependent brake force
boosting is triggered, additional pr eventive meas-
ures for occupant pr otection (PRE-SAFE) may also
be initiated (/ page 38). &
W
WARNING
ARNING Risk of an accident caused by
limited de tection per form ance of Active
Brake Assist
Ac tive Brake Assist cannot alw ays clear lyiden-
tify objects and complex tra1c situations.
In such cases, Active Brake Assist might:
R Give a warning or brake without reason
R Not give a warning or not brake
Ac tive Brake Assist is only an aid. The driver is
re sponsible for maintaining a su1ciently safe
distance totheve hicle in front, vehicle speed
and for braking in good time. #
Always pay careful attention tothe tra1c
situation; do not relyonActive Brake
Assist alone. #
Be prepared tobrake or swer veif neces-
sar y. Obser
vethe system limitations of Active Brake
Assist. Due tothe nature of the system, complex
but non-critical driving conditions may also cause
Ac tive Brake Assist tointer vene during braking. Driving and parking
155
155

The individual subfunctions ar
The individual subfunctions ar
eav
e av ailable in t
ailable in t he f
he fol-
ol-
lo
lo wing speed r
wing speed r ang
anges:
es:
Dist
Dist ance w
ance w ar
arning function
ning function
The dis tance warning function warnsyo u in thefo l-
lowing situations:
R From a speed of appr oximately 30 km/h, if
ove r se veral seconds the distance maintained
to theve hicle tr avelling in front is insu1cient
fo rth e driven speed. The Lwarning lamp in
th e inst rument cluster then lights up.
R From a speed of appr oximately 7 km/h, if your
ve hicle is critically close toave hicle or pedes-
trian. An intermittent warning tone sounds and
th eL warning lamp in the inst rument clus-
te rth en lights up.
Brake immediately or take evasive action, pr ovided
it is safe todo so and the tra1c situation allo ws
th is.
The distance warning function can aid you in the
fo llowing situations with an intermittent warning
to ne and a warning lamp:
R V
V ehicles tr av
ehicles tr avelling in fr
elling in fr ont
ont::up toappr oximately
250 km/h
R St
St ationar
ationar y v
y vehicles:
ehicles: uptoappr oximately
80 km/h
R Cr
Crossing v
ossing v ehicles:
ehicles: noreaction
R Mo
Moving pedes
ving pedes tr
trians/cy
ians/cy clis
clists ahead:
ts ahead: upto
appr oximately 80 km/h
R Cr
Crossing cy
ossing cy clists:
clists:uptoappr oximately
60 km/h
R St
Stationar
ationar y pedes
y pedes tr
trians:
ians: noreaction
A
A ut
ut onomous br
onomous br aking function
aking function
The autonomous braking function may inter vene at
speeds starting from app roximately 7 km/h in the
fo llowing situations:
R V
Vehicles tr av
ehicles tr avelling in fr
elling in fr ont
ont::up toappr oximately
200 km/h
R St
St ationar
ationar y v
y vehicles:
ehicles: uptoappr oximately
50 km/h
R Cr
Crossing v
ossing v ehicles:
ehicles: noreaction
R Cy
Cyclis
clis ts ahead:
ts ahead: uptoappr oximately 80 km/h
R Mo
Mo ving pedes
ving pedestr trians/cr
ians/cr ossing cy
ossing cy clis
clists:ts:upto
appr oximately 60 km/h
R St
St ationar
ationar y pedes
y pedes tr
trians:
ians: noreaction Situation-dependent br
Situation-dependent br
ak
ake f
e f or
orce boos
ce boos ting
ting
Situation-dependent brake forc e boosting may
inter vene at speeds starting from app roximately
7 km/h in thefo llowing situations:
R V
Vehicles tr av
ehicles tr avelling in fr
elling in fr ont
ont::up toappr oximately
250 km/h
R St
Stationar
ationar y v
y vehicles:
ehicles: uptoappr oximately
80 km/h
R Cr
Crossing v
ossing v ehicles:
ehicles: noreaction
R Cy
Cyclis
clis ts ahead:
ts ahead: uptoappr oximately 80 km/h
R Mo
Moving pedes
ving pedestr trians/cr
ians/cr ossing cy
ossing cy clis
clists:ts:upto
appr oximately 60 km/h
R St
Stationar
ationar y pedes
y pedes tr
trians:
ians: noreaction
Cancelling a br
Cancelling a br ak
ake application of A
e application of A ctiv
ctive Br
e Br ake
ake
Assist
Assist
Yo u can cancel a brake application of Active Brake
Assist at any time by:
R Fully depressing the accelerator pedal or with
kickdown.
R Releasing the brake pedal.
Ac tive Brake Assist may cancel the brake applica-
tion when one of thefo llowing conditions is ful/l-
led:
R You manoeuvre toavo idthe obstacle.
R There is no longer a risk of collision.
R An obs tacle is no longer de tected in front of
yo ur vehicle.
Syst
Syst em limits em limits
Fu ll system per form ance is not yetav ailable for a
few seconds aTer switching on theve hicle or aTer
driving o..
The system may be impaired or may not function in
th efo llowing situations:
R In sno w,rain, fog or heavy spr ay
R Ifth e sensors are dirty, misted up, damaged or
co vered.
R Ifth e sensors are impaired due tointer fere nce
from other radar sources, e.g. strong radar
re 0ections in multi-s tore y car par ks.
R If a loss of tyre pressure or a defecti vetyre has
been de tected and displa yed.
R In complex tra1c situations where objects
cannot alw ays be clear lyidenti/ed.
R If pedestrians or vehicles mo vequickly into the
sensor de tection range.
R If pedestrians are hidden by other objects. 156 156
Driving and parking

R
Ifth e typical outline of a pedestrian cannot be
distinguished from the backg round.
R If a pedestrian is not de tected as such, e.g.
due tospecial clo thing or other objects.
R In bends with a nar row radius. A
A
ctiv
ctiv ating or deactiv
ating or deactiv ating A
ating Activ
ctive Br
e Br ak
ake Assist
e Assist On-board computer:
4 ò 5
Settings 5
Assistance
5 Active Brake Assist
% It isrecommended that Active Brake Assist is
alw ays leT activated. #
T
To activ
o activ at
ate/deactiv
e/deactiv at
ate:
e: press thea button.
The distance warning function and the autono-
mous braking function of Active Brake Assist
are deactivated or acti vated.
When the functions are deactivated, theæ
symbol appears in the assistance graphic in
th e inst rument cluster displa y.
The next time theve hicle is star ted, Ac tive Brake
Assist is automatically acti vated. F
F unction of A
unction of A dap
daptiv
tive Br
e Br ak
ake Lights
e Lights Ad
aptive brake lights warnfollowing tra1c in an
emer gency braking situation with thefo llowing sig-
nals:
R By 0ashing the brake lamps
R By activating the hazard warning lights
If th eve hicle is braked sharply from speeds abo ve
50 km/h, the brake lamps 0ash rapidl y.This pro-
vides tra1c tr avelling behind you with an even
more noticeable warning.
If th eve hicle is tr avelling at speeds of more than
70 km/h at the beginning of the brake application,
th e hazard warning lights switch on once theve hi-
cle is stationar y.When pulling away again, the haz-
ard warning lights switch o. automatically at
appr oximately 10 km/h.
Yo u can also switch o. the hazard warning lights
using the hazard warning button (/ page 108). Cr
Cr uise contr
uise contr ol and limit
ol and limit er
er F
F
unction of cr
unction of cr uise contr
uise control
ol
Cruise control accelerates and brakes theve hicle
automatically in order tomaintain a pr eviously
stored speed. If
yo u accelerate toove rtake, forex ample, the
stored speed is not dele ted. If youre mo veyour
fo ot from the accelerator pedal aTer overtaking,
cruise cont rol will resume speed regulation back to
th e stored speed.
Yo u operate cruise control using the cruise control
le ve r.Yo u can store any speed abo ve30 km/h.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 152).
Syst
Syst em limits
em limits
Cruise cont rol may be unable tomaintain the
stored speed on uphill gradients. The stored speed
is resumed if the uphill gradient evens out and the
ve hicle's speed does not fall below 30 km/h.
On long and steep downhill gradients, you should
ch ange down toa lo werge ar in good time. Take
particular no teof this when driving a laden vehicle.
By doing so, you will make use of the engine's
braking e.ect. This will take some of the strain o.
th e brake system and pr event the brakes from
ov erheating and wearing tooqu ickl y.
If yo uch ange wheel size on your vehicle, check it
is assigned tothe cor rect wheel size category
(/ page 260). If the category is changed without
re coding the control units in theve hicle, the func-
tioning of cruise control may be impaired.
Do not use cruise control in thefo llowing situa-
tions:
R in tra1c situations where frequent speed
changes are requi red, e.g. in heavy tra1c or on
winding roads
R o.-road or on construction sites
R on slippery or slick roads, as the drive wheels
can lose traction when accelerating and the
ve hicle can then skid
R ifth ere is poor visibility
F
F unction of t unction of t he limit
he limiter
er
The limiter restricts the speed of theve hicle. To
adjust tothe set speed quickl y,the limiter applies
th e brakes automaticall y.
Yo u can limit the speed as follo ws:
R Variable: for a short-term or medium-term
re striction of the highest permissible speed,
e.g. in built-up areas
R Perm anent: for a long-term restriction of the
highest permissible speed, e.g. in winter tyre
mode Driving and parking
157 157

Yo
u can operate theva riable limi ter with the cruise
control le ver.Yo u can store any speed abo ve
30 km/h. You can also per form settings while the
ve hicle is stationary if theve hicle has been star-
te d.
Obser vethe no tes on driving systems and your
re sponsibility. You may otherwise failto recognise
dangers (/ page 152).
If yo uch ange wheel size on your vehicle, check it
is assigned tothe cor rect wheel size category
(/ page 260). If the category is changed without
re coding the control units in theve hicle, the func-
tioning of the limiter may be impaired.
Kic
Kic kdo
kdo wn
wn
If yo u depress the accelerator pedal be yond the
pressure point (kickdown), the limiter switches to
passive mode.
The instrument cluster display sho ws theLimiter
passive message and you are able toexceed the
stored speed.
ATer completion of kickdown, theva riable limi ter
is activated again in thefo llowing situations:
R Ifth e driven speed drops below the stored
speed.
R Ifth e stored speed is called up.
R Ifyo u store a new speed.
Oper
Oper ating cr ating cr uise contr
uise contr ol or t
ol or the v
he var
ariable limit
iable limit er
er
R
R eq
eq uir
uir ements:
ements:
Cruise control
R Cruise control is selected.
R The parking brake has been released.
R ESP ®
is activated, but may not inter vene.
R The driving speed is at least 30 km/h.
R The clutch pedal is not dep ressed.
R The brake pedal is not depressed.
R
R eq
eq uir
uir ements:
ements:
Va riable limi ter
R The vehicle has been star ted.
R The variable limi ter is selected. Switc
Switc
hing be
hing be tw
tween cr
een cr uise contr
uise contr ol and t
ol and the v
he var
ariable
iable
limit
limit er
er #
Press button 5.
R LIM indicator lamp 2o.: cruise control is
selected.
R LIM indicator lamp 2lit:theva riable lim-
iter is selected.
S
S t
tor
or ing and maint
ing and maint aining t
aining the curr
he current speed
ent speed #
Brie0y press the cruise control le ver up 1or
down 4.
The cur rent speed is stored and theve hicle
maintains this speed (cruise control) or does
not exceed it (variable limiter).
When you activate cruise control, the stored speed
is brie0y shown in thete xt /eld of the inst rument
cluster displa y.The display also sh owsth e¯
symbol and the stored speed.
When you activate theva riable limi ter,th e inst ru-
ment cluster display brie0y sho ws the stored
speed. The display also sho ws theÈ symbol
and the stored speed.
% Forve hicles with Active Distance Assist
DISTRONIC, the segments between the start
of the scale and the stored speed light up in
th e speedome ter dial instead.
Calling up t
Calling up t he st
he stor
ored speed
ed speed &
W
WARNING
ARNING Risk of accident due tostored
speed
If yo u call up the stored speed and this is lo wer
th an your cur rent speed, theve hicle deceler-
ates. #
Take into account the tra1c situation
before calling up the stored speed. 158
158
Driving and parking