or
X
Briefly press the cruise control lever in the
direction of arrow =.
Variable SPEEDTRONIC is selected. LIM
indicator lamp ;in the cruise control lever
lights up.
If you deactivate DISTRONIC PLUS, the DIS‐TRONIC PLUS off message is shown in the
multifunction display for approximately five
seconds.
i The last speed stored remains stored until
you switch off the engine.
i DISTRONIC PLUS is not deactivated if you
depress the accelerator pedal. If you accel-
erate to overtake, DISTRONIC PLUS
adjusts the vehicle's speed to the last
speed stored after you have finished over-
taking.
DISTRONIC PLUS is automatically deactiva-
ted if:
R you apply the parking brake.
R you are driving slower than 25 km/ha nd
there is no vehicle in front,orift he vehicle
in front is no longer detected.
R ESP ®
intervenes or if you deactivate ESP ®
.
R the transmission is in the P,Ror Nposition.
R the vehicle is near aradio telescope facility
(Y page 345).
R you switch off the radar sensor system
(Y page 229).
R you pull the cruise control lever towards
you in order to pull away and the front-
passenger door is open.
R the vehicle has skidded.
If DISTRONIC PLUS is deactivated, you will
hear awarning tone. The DISTRONIC PLUS off message is shown in the multifunction
display for approximately five seconds.
If the vehicle has been stopped by DISTRONIC
PLUS and afault occurs in the system, the
Brake immediately message appears in the
multifunction. Depress the brake pedal
immediately so that the vehicle does not roll away.D
ISTRONIC PLUS is then deactivated,
and the messag edisappears.
Tips for driving with DISTRONIC PLUS General notes
The following contains descriptions of certain
road and traffic conditions in which you must
be particularly attentive. In such situations,
brake if necessary .DISTRONIC PLUS is then
deactivated.
Cornering, going into and comingo ut of a
bend The ability of DISTRONIC PLUS to detect vehi-
cles when cornering is limited. Yourv
ehicle
may brake unexpectedly or late.
Vehicles travelling on adifferent line DISTRONIC PLUS may not detec
tvehicles
travelling on adifferent line. The distance to
the vehicle in fron twill be too short. Driving systems
179Driving and parking Z
Other vehicles changing lane
DISTRONIC PLUS has not detected the vehi-
cle cutting in yet. The distanc
etothis vehicle
will be too short.
Narrow vehicles DISTRONIC PLUS has not yet detected the
vehicle in fron
tonthe edge of the carriage-
way,b ecause of its narrow width. The dis-
tance to the vehicle in front will be too short.
Obstructions and stationary vehicles DISTRONIC PLUS does not brake for obsta-
cles or stationary vehicles. If, for example, the detected vehicle turns
acorner and reveals
an obstacle or stationary vehicle, DISTRONIC
PLUS will not brake for these.
Crossing vehicles DISTRONIC PLUS may detect vehicles that
are crossing your lane by mistake. Activating
DISTRONIC PLUS at traffic lights with cross-
ing traffic, for example, could cause your vehi-
cle to pull away unintentionally.
SPEEDTRONIC
Important safety notes SPEEDTRONIC brakes automatically so that
you do not exceed the set speed. On long and
steep downhill gradients, especiallyift
he
vehicle is laden or towing atrailer, you must
shift to alower gear in good time or select
shift range 1,2or 3on vehicles with auto-
matic transmission. By doing so, you will
make use of the braking effect of the engine,
which relieves the load on the brake system
and prevents the brakes from overheating
and wearing too quickly. If you need addi-
tional braking, depress the brake pedal
repeatedly rather than continuously. G
WARNING
Never depress the brake pedal continuously
while the vehicle is in motion, e.g. never cause
the brakes to rub by applying constant slight
pedal pressure. This causes the brake system
to overheat, increases the braking distance
and can lead to the brakes failing completely. 180
Driving systemsDriving and parking
G
WARNING
Do not change downf or additional engine
braking on aslippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid.
You can set avariable or permanent limit
speed:
R variable for speed limits, e.g. in built-up
areas
R permanent for long-term speed restric-
tions, e.g. when driving with winter tyres
fitted (Y page 183) G
WARNING
Speedtronic is only an aid designed to assist
driving. You are responsible for the vehicle's
speed and for braking in good time.
i The speed indicated in the speedometer
may differ slightly from the limit speed
stored.
Variable SPEEDTRONIC General notes
With the cruise control lever, you can operate
cruise control or DISTRONIC PLUS and vari-
able SPEEDTRONIC.
The LIM indicator lamp on the cruise control
lever indicates which system you have selec-
ted:
R LIM indicator lamp off: cruise control or
DISTRONIC PLUS is selected.
R LIM indicator lamp on: variable SPEED-
TRONIC is selected.
You can use the cruise control lever to limit
the speed to any speed above 30 km/hw hile
the engine is running. :
To store the current speed or ahigher
speed
; LIM indicator lamp
= To store the current speed or to call up
the last stored speed
? To store the current speed or alower
speed
A To switch between cruise control or DIS-
TRONIC PLUS and variable SPEEDTRONIC
B To deactivate variable SPEEDTRONIC
Selecting variable SPEEDTRONIC
X Check whether LIM indicator lamp ;is on.
If it is on, variable SPEEDTRONIC is already
selected.
If it is not, press the cruise control lever in
the direction of arrow A.
LIM indicator lamp ;in the cruise control
lever lights up. VariableS PEEDTRONIC is
selected. G
WARNING
If there is achange of drivers, advise the new
driver of the limit speed stored.
Only use variable SPEEDTRONIC if you will not
have to accelerate suddenly to aspeed above
that stored as the limit speed. You could oth-
erwise cause an accident.
You can only exceed the limit speed stored if
you deactivate variable SPEEDTRONIC:
R using the cruise control lever
R by depressing the accelerator pedal
beyond the pressure point (kickdown) Driving systems
181Driving and parking
Z
It is not possible to deactivate variable
SPEEDTRONIC by braking.
Storing the current speed
You can use the cruise control lever to limit
the speed to any speed above 30 km/h while
the engine is running.
X Briefly press the cruise control lever
up : or down ?to the pressure point.
The current speed is stored and shown in
the multifunction display.
The segments in the multifunction display
lightupf rom the start of the scale up to the
stored speed.
Storing the current speed or calling up the
last stored speed G
WARNING
Only select astored speed if you know what
that speed is and whether it is suitable for the
curren tdrivin gand traffic situation .Other-
wise, sudden brakin gcould endanger you or
others.
X Briefly pull the cruise contro llever towards
you =.
Making adjustments in 10 km/h incre-
ments
X Briefly press the cruise contro llever
beyond the pressure point ,up:for a
higher speed or down ?for alower speed.
or
X Keep the cruise contro llever pressed
beyond the pressure point until the desired
speed is set. Press the cruise contro llever
up : for ahigher speed or down ?for a
lower speed. Making adjustments in
1km/h incre-
ments
X Briefly press the cruise contro llever to the
pressure point ,up:for ahigher speed or
down ?for alower speed.
or
X Keep the cruise contro llever pressed to the
pressure point until the desired speed is
set. Press the cruise contro llever up :for
ah igher speed or down ?for alower
speed.
Deactivating variable SPEEDTRONIC
There are several ways to deactivate variable
SPEEDTRONIC:
X Briefly press the cruise contro llever for-
wards B.
or
X Briefly press the cruise contro llever in the
direction of arrow A.
LIM indicator lamp ;in the cruise control
lever goes out. Variable SPEEDTRONIC is
deactivated.
Cruise contro lorDISTRONIC PLUS is selec-
ted.
Variable SPEEDTRONIC is automatically
deactivated:
R when you depress the accelerator pedal
beyond the pressure point (kickdown), but
only if your curren tspeed does not differ by
more than 20 km/ hfrom the stored speed.
You willh earawarningtoneift hisist he
case.
R on vehicles with manual transmission ,if
you shif ttoahigher gear and as aresult the
engine speed is too low. G
WARNING
It is not possible to deactivate variable Speed-
tronic by braking.
i The last speed stored is cleared when you
switch off the engine. 182
Driving systemsDriving and parking
Permanent SPEEDTRONIC
You can use the on-board computer to limit
the speed permanently to avalue between
16 0k m/ h(e.g. for driving on winter tyres)
and th emaximum spee d(Ypage 228).
Shortly before th estoreds peed is reached, it
appears in the multifunction display.
Permanent SPEEDTRONIC remains active,
even if variable SPEEDTRONIC is deactivated.
You cannot exceed the stored limit speed,
even if you depress the accelerator pedal
beyond the pressure point (kickdown). Dynamic handling package with
sports mode
General notes The most important part of the dynamic han-
dling package with sport smode is the adjust-
able suspension system. This automatically
controls and adapts the suspension to the
respective drivin gsituation.
The calibration of the suspension depends
on:
R your drivin gstyle
R the road surface conditions
R your individual selection; see the following
description
If your vehicle is equipped with automatic
transmission ,the dynamic handling package
with sport smode also includes steering
wheel gearshift paddles (Y page 157)with a
manual drive program (Y page 158). Example: position of dynamic handling package
with sport smode button
X Start the engine.
Sports tuning The firmer setting of the suspension tunin
gin
sport smode ensures even better contact
with the road. Select this mode when employ-
ing asport ydrivin gstyle, e.g. on winding
country roads.
Your selection remains stored until you
switc hoff the engine.
X Press button ;.
Indicator lamp :lights up. Sport ssuspen-
sion tunin gisselected. Depending on the
engin eoutput, the accelerator pedal is
more responsive. On vehicles with auto-
matic transmission ,drive program Sis
selected.
Comfor ttuning In comfort mode, the drivin
gcharacteristics
of your vehicle are more comfortable. Select
this mode if you prefer amore comfortable
drivin gstyle, but also when drivin gfast on
straight roads, e.g. motorways.
X Press button ;.
Indicator lamp :goes out. Comfortable
suspension tunin gisselected. On vehicles
with automatic transmission ,drive pro-
gram Eis selected. Driving systems
183Driving and parking Z
PARKTRONIC is activated automatically when
you:
R switch on the ignition
R shift to position D,Ror Non vehicles with
automatic transmission
R release the parking brake
PARKTRONIC is deactivated at speeds above
18 km/h. It is reactivated at lower speeds.
PARKTRONIC monitors the area around your
vehicle using six sensors in the frontb umper
and four sensor sintherear bumper. :
Sensors in th efront bumper, left-hand
side (example)
Range of th esensors General notes
The sensor
smust be free of dirt ,ice and
slush ;otherwise, they may no tfunction cor-
rectly. Clean th esensor sregularly, taking
care not to scratch or damage them
(Y page 290). Example: side view (Coupé) Example; top view (Coupé)
Front sensors
Centre approximately 100 cm
Corners approximately 60 cm
Rear sensors
Centre approximately 120 cm
Corners approximately 80 cm
!
When parking, pay particular attention to
objects above or below the sensors, such
as flower pots or trailer drawbars. PARK-
TRONIC does not detec tsuch objects when
they are in th eimmediat evicinity of the
vehicle. You could damage the vehicle or
the objects.
The sensors may not detect sno wand
object swhich absorb ultrasonic sources.
Ultrasonic sources, such as an automatic
car wash, alorry's compressed-air brakes
or ap neumatic drill, could cause PARK-
TRONI Ctom alfunction.
PARKTRONI Cmay not function correctly on
uneven terrain.
Minimum distance Centre approximately 20 cm
Corners approximately 15 cm
If there is an obstacle within this range, the
relevant warnin
gdisplays light up and awarn-
ing ton esounds. If the distanc efalls below 186
Driving systemsDriving and parking
the minimum
,the distance ma ynolongerbe
shown.
Warning displays The warning displays show the distance
between the sensors and the obstacle. The
warning displayf or the front area is located
on the dashboard above the centre air vents.
The warning displayf or the rear area in the
Coupéisl ocated on the roof lining in the rear
compartment;int he Cabriolet, it is between
the rear seats. Warning displayf
or the front area
: Segmentsont he left-hand side of the
vehicle
; Segmentsont he right-hand side of the
vehicle
= Segmentss howing operational readiness
The warning displayf or each side of the vehi-
cle is divided into five yellow and two red seg-
ments. PARKTRONIC is operational if yellow
segments showing operational readiness =
light up.
The gear lever position or the transmission
position of the automatic transmission deter-
mines which warning displayisa ctive when
the engine is running. Manual transmission: Gear lever posi-
tion Warning display
Forwards gear
or
Neutral
Front area activated
Reverse gear
Rear and front areas
activated
Automatic transmission:
Transmission
position Warning display
D
Front area activated
R
or N Rear and front areas
activated
P
No areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle.
From the:
R
sixth segment onwards, you will hear an
intermittent warning tone for approx-
imately two seconds.
R seventh segment onwards, you will hear a
warning tone for approximately two sec-
onds. This indicates that you have now
reached the minimum distance. Driving systems
187Driving and parking Z
Deactivating/activating PARKTRONIC
:
Indicator lamp
; To deactivate/activat ePARKTRONIC
If indicator lamp :lights up, PARKTRONIC is
deactivated. Parking Guidance is also deacti-
vated.
i PARKTRONIC is automatically activated
when you turn th ekeyto position 2in the
ignition lock.
Trailer towing PARKTRONIC is deactivated fo
rthe rear area
when you establish an electrical connection
between your vehicle and atrailer.
! Fold in the ball coupling if the trailer tow
hitch is not required. PARKTRONIC meas-
ures the minimum detection range to an
obstacle from the bumper, not the ball cou-
pling. 188
Driving systemsDriving and parking