stored speed to the end of the scale or to a per-
manently set speed limit light up.
Selecting cruise control X
Check whether LIM indicator lamp ;is off.
If it is off, cruise control 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 goes out. Cruise control is selected.
Storing and maintaining the current
speed You can store the current speed if you are driv-
ing faster than 30 km/h.
X Accelerate the vehicle to the desired speed.
X Briefly press the cruise control lever up :or
down ?.
X Remove your foot from the accelerator pedal.
Cruise control is activated. The vehicle auto-
matically maintains the speed.
i Cruise control may be unable to maintain
the stored speed on uphill gradients. The
stored speed is resumed when the gradient
evens out. Cruise control maintains the
stored speed on downhill gradients by auto-
matically braking the vehicle.
To store the current speed or call up the
last stored speed G
WARNING
If you call up the stored speed and it is lower
than the current speed, the vehicle deceler-
ates. If you do not know the stored speed, the vehicle could decelerate unexpectedly. There
is a risk of an accident.
Pay attention to the road and traffic condi-
tions before calling up the stored speed. If you do not know the stored speed, store the
desired speed again.
X Briefly pull the cruise control lever towards
you =.
X Remove your foot from the accelerator pedal.
The first time cruise control is activated, it
stores the current speed or regulates the speed of the vehicle to the previously stored
speed.
Setting a speed Bear in mind that it may take a brief moment
until the vehicle has accelerated or braked to
the set speed.
X Press the cruise control lever up :for a
higher speed or down ?for a lower speed.
X Keep the cruise control lever pressed until the
desired speed is reached.
X Release the cruise control lever.
The new speed is stored.
X To adjust the set speed in1 km/hincre-
ments:
briefly press the cruise control lever
up : or down ?to the pressure point.
The last stored speed increases or decreases
in 1 km/h increments.
X To adjust the set speed in10 km/hincre-
ments: briefly press the cruise control lever
up : or down ?beyond the pressure point.
The last stored speed increases or decreases
in 10 km/h increments.
i Cruise control is not deactivated if you
depress the accelerator pedal. If you acceler-
ate to overtake, cruise control adjusts the
vehicle's speed to the last speed stored after
you have finished overtaking.
Deactivating cruise control There are several ways to deactivate cruise con-
trol:
X Briefly press the cruise control lever forwards
B.
or
X Brake.
or
X Briefly move the cruise control lever in the
direction of arrow A.
Variable SPEEDTRONIC is selected. LIM indi-
cator lamp ;in the cruise control lever is on.
Cruise control is automatically deactivated if: R you apply the electric parking brake
R you are driving at less than 30 km/h
R ESP ®
engages or you deactivate ESP ®
R you shift the transmission to position Nwhile
driving Driving systems
175Driving and parking Z
If cruise control is deactivated, a warning tone
sounds. You will see the Cruise control off
Cruise control off
message on the multifunction display for
approximately five seconds. The message on
the multifunction display disappears and the
segments on the speedometer go out.
i The last speed stored is cleared when you
switch off the engine. SPEEDTRONIC
General notes SPEEDTRONIC is used to set a speed limit for
your vehicle. If the vehicle speed exceeds the
set speed limit, SPEEDTRONIC brakes automat- ically. Shift to a lower gear in good time on long
and steep downhill gradients. Take particular
note of this when driving a laden vehicle and
when towing a trailer. By doing so, you will make use of the braking effect of the engine. This
relieves the load on the brake system and pre-
vents the brakes from overheating and wearing too quickly.
Important safety notes SPEEDTRONIC can neither reduce the risk of an
accident if you fail to adapt your driving style nor override the laws of physics. SPEEDTRONIC
cannot take into account road, weather or traffic
conditions. SPEEDTRONIC is only an aid. You
are responsible for maintaining a safe distance
from the vehicle in front, for vehicle speed, for
braking in good time and for staying in lane.
If there is a change of drivers, advise the new
driver of the speed stored.
You can set a variable or permanent limit speed:
R variable for speed limits, e.g. in built-up areas
R permanent for long-term speed restrictions,
e.g. when driving with winter tyres fitted
(Y page 177)
i The speed indicated in the speedometer
may differ slightly from the limit speed stored. Variable SPEEDTRONIC General notes
:
To store the current speed or a higher speed
; LIM indicator lamp
= To store the current speed or calling up the
last stored speed
? To store the current speed or a lower speed
A To switch between cruise control or
DISTRONIC PLUS and variable SPEED-
TRONIC
B Deactivating variable SPEEDTRONIC
With the cruise control lever, you can operate
cruise control or DISTRONIC PLUS and variable SPEEDTRONIC.
The LIM indicator lamp on the cruise control
lever indicates which system you have selected:
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/h while the
engine is running. If you have set a permanent
limit speed, you can variably limit the speed up
to the fixed limit speed (Y page 177).
Selecting variable SPEEDTRONIC
If there is a change of drivers, advise the new
driver of the limit speed stored. 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 is on. Variable SPEEDTRONIC is selec-
ted. 176
Driving systemsDriving and parking
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 ?.
The current speed is stored and shown in the
multifunction display.
Speedometer with segments: the seg-
ments light up from the start of the scale up to
the stored speed limit.
To store the current speed or call up the
last stored speed G
WARNING
If you call up the stored speed and it is lower
than the current speed, the vehicle deceler-
ates. If you do not know the stored speed, the vehicle could decelerate unexpectedly. There
is a risk of an accident.
Pay attention to the road and traffic condi-
tions before calling up the stored speed. If you do not know the stored speed, store the
desired speed again.
X Briefly pull the cruise control lever towards
you =.
Setting a speed
X To adjust the set speed in10 km/hincre-
ments:briefly press the cruise control lever
up : beyond the pressure point for a higher
speed, or down ?for a lower speed.
or
X Keep the cruise control lever pressed beyond
the pressure point until the desired speed is
set. Press the cruise control lever up :for a
higher speed or down ?for a lower speed.
X To adjust the set speed in1 km/hincre-
ments:briefly press the cruise control lever
up
: to the pressure point for a higher speed
or down ?for a lower speed.
or X Keep the cruise control lever pressed to the
pressure point until the desired speed is set.
Press the cruise control lever up :for a
higher speed or down ?for a lower speed. Switching SPEEDTRONIC to passive
If you depress the accelerator pedal beyond the
pressure point (kickdown), SPEEDTRONIC is
switched to passive mode. The multifunction
display shows the SPEEDTRONIC suspended
SPEEDTRONIC suspended
message and you are able to exceed the stored speed. If SPEEDTRONIC is switched to passive
mode, SPEEDTRONIC will not brake automati-
cally until it is activated again.
SPEEDTRONIC is activated again if you:
R drive slower than the stored speed without
kickdown
R set a new speed or
R call up the last speed stored again
The SPEEDTRONIC suspended SPEEDTRONIC suspended message on the
multifunction display then disappears.
To deactivate variable SPEEDTRONIC
It is not possible to deactivate variable SPEED-
TRONIC by braking.
There are several ways to deactivate variable
SPEEDTRONIC:
X Briefly press the cruise control lever forwards
B.
or X Briefly press the cruise control lever in the
direction of arrow A.
Cruise control or DISTRONIC PLUS is selec-
ted. LIM indicator lamp ;in the cruise con-
trol lever goes out.
i The last speed stored is cleared when you
switch off the engine.
Permanent SPEEDTRONIC You can use the on-board computer to limit the
speed permanently to a value between
160 km/h (e.g. when driving on winter tyres)
and 240 km/h(Y page 244).
Shortly before the stored speed 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). Driving systems
177Driving and parking Z
DISTRONIC PLUS
General notes DISTRONIC PLUS regulates the speed and auto-
matically helps you maintain the distance to the
vehicle detected in front. Vehicles are detected with the aid of the radar sensor system.
DISTRONIC PLUS brakes automatically so that
the set speed is not exceeded.
Change into a lower gear in good time on long
and steep downhill gradients. Take particular
note of this when driving a laden vehicle. By
doing so, you will make use of the braking effect
of the engine. This relieves the load on the brake
system and prevents the brakes from overheat- ing and wearing too quickly.
If DISTRONIC PLUS detects that there is a risk of
collision with the vehicle in front, you will be
warned visually and audibly. Without your inter- vention, DISTRONIC PLUS cannot prevent a col-
lision. An intermittent warning tone will then
sound and the distance warning lamp will light
up in the instrument cluster. Brake immediately to increase the distance to the vehicle in front,
or take evasive action, provided it is safe to do
so.
DISTRONIC PLUS operates in the speed range
between 0 km/h and 200 km/h.
Do not use DISTRONIC PLUS while driving on
roads with steep gradients.
Important safety notes G
WARNING
DISTRONIC PLUS does not react to:
R people or animals
R stationary obstacles on the road, e.g. stop-
ped or parked vehicles
R oncoming and crossing traffic
As a result, DISTRONIC PLUS may neither give
warnings nor intervene in such situations.
There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. G
WARNING
DISTRONIC PLUS cannot always clearly rec-
ognise other road users and complex traffic
conditions. In such cases, DISTRONIC PLUS may:
R give an unnecessary warning and then
brake the vehicle
R neither give a warning nor intervene
R accelerate or brake unexpectedly
There is a risk of an accident.
Continue to drive carefully and be prepared to
brake, particularly if DISTRONIC PLUS warns
you. G
WARNING
DISTRONIC PLUS brakes your vehicle with up to 50 %of the maximum possible deceleration.
If this deceleration is not sufficient,
DISTRONIC PLUS alerts you with a visual and
acoustic warning. There is a risk of an acci-
dent.
Apply the brakes yourself in these situations
and try to take evasive action.
! When DISTRONIC PLUS or the HOLD func-
tion is activated, the vehicle brakes automat- ically in certain situations.
To avoid damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or similar situations:
R when towing away
R in a car wash
DISTRONIC PLUS can neither reduce the risk of
an accident if you fail to adapt your driving style
nor override the laws of physics. DISTRONIC
PLUS cannot take into account road, weather or traffic conditions. DISTRONIC PLUS is only an
aid. You are responsible for maintaining a safe
distance, for vehicle speed, for braking in good
time and for staying in lane.
Do not use DISTRONIC PLUS:
R in traffic conditions that do not allow you to
maintain a constant speed, e.g. in heavy traf-
fic or on winding roads
R on smooth or slippery roads. Braking or accel-
erating can cause the drive wheels to lose
traction and the vehicle could then skid
R when there is poor visibility, e.g. due to fog,
heavy rain or snow
DISTRONIC PLUS may not detect narrow vehi-
cles driving in front, e.g. motorcycles, or vehi-
cles driving on a different line. 178
Driving systemsDriving and parking
Displays in the assistance graphic
Display when DISTRONIC PLUS is deac-
tivated
: Vehicle in front, if detected
; Distance indicator: current distance to the
vehicle in front
= Specified minimum distance to the vehicle
in front; adjustable
? Own vehicle Display when DISTRONIC PLUS is activa-
ted
: DISTRONIC PLUS active (text only appears
when the cruise control lever is actuated)
; Vehicle in front, if detected
= Specified minimum distance to the vehicle
in front; adjustable
? Own vehicle
X To call up the assistance graphic:select the
Assistance graphic
Assistance graphic function using the on-
board computer (Y page 239).
You will see the stored speed for approx-
imately five seconds when you activate
DISTRONIC PLUS. Deactivating DISTRONIC PLUS
DISTRONIC PLUS can be deactivated in a num-
ber of ways:
X Briefly press the cruise control lever forwards
=.
or X Brake, unless the vehicle is stationary.
or X Briefly push the cruise control lever in the
direction of arrow ;.
Variable SPEEDTRONIC is selected. LIM indi-
cator lamp :in the cruise control lever lights
up.
When you deactivate DISTRONIC PLUS, the DISTRONIC PLUS off DISTRONIC PLUS off message will appear on
the multifunction display for approximately five
seconds.
The last speed stored remains stored until you
switch off the engine.
DISTRONIC PLUS is not deactivated if you
depress the accelerator pedal.
DISTRONIC PLUS is automatically deactivated
in the following situations:
R You apply the electric parking brake or if the
vehicle is automatically secured with the elec-
tric parking brake
R ESP ®
engages or you deactivate ESP ®
R The transmission is in the P,Ror Nposition
R You pull the cruise control lever towards you
in order to pull away and the front-passenger
door or one of the rear doors is open
R The vehicle is skidding
R You activate Active Parking Assist
If DISTRONIC PLUS is deactivated, you will hear
a warning tone. The DISTRONIC DISTRONICPLUS
PLUSoff
offmes-
sage will be displayed on the multifunction dis-
play for approximately five seconds. Driving syste
ms
183Driving an d parking Z
towards the edge of the carriageway, your vehi-
cle could come into contact with the kerb or
other road boundaries. Be particularly aware of
other road users, e.g. cyclists, that are directly
next to your vehicle.
Obstacles such as traffic pylons on the lane or
projecting out into the lane are not detected.
An inappropriate steering intervention, e.g. after
you have intentionally driven over a lane mark-
ing, can be corrected at any time if you steer
slightly in the opposite direction.
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot cannot continuously keep your
vehicle in lane. In some cases, the steering
intervention is not sufficient to bring the vehicle back to the lane. In such cases, you must steer the vehicle yourself to ensure that it does not
leave the lane.
The system may be impaired or may not function
in the following situations:
R poor visibility, e.g. due to insufficient illumi-
nation of the road, or due to snow, rain, fog or
spray
R glare, e.g. from oncoming traffic, the sun or
reflection from other vehicles (e.g. if the road
surface is wet)
R the windscreen is dirty, misted up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R no or several, unclear lane markings are pres-
ent for one lane, e.g. in a construction area
R the lane markings are worn away, dark or cov-
ered up, e.g. by dirt or snow
R the distance to the vehicle in front is so small
that the lane markings cannot be detected
R the lane markings change quickly, e.g. lanes
branch off, cross one another or merge
R the road is narrow and winding
R there are highly variable shade conditions on
the roadway
The system is switched to passive and no longer assists you by performing steering interventions
if:
R you actively change lane
R you switch on the turn signal
R you take your hands off the steering wheel or
do not steer for a prolonged period of time
After you have finished changing lanes, Steering Assist and Stop&Go Pilot are automatically
active again. Steering Assist and Stop&Go Pilot cannot pro-
vide assistance in the following situations:
R on very sharp corners
R when a loss of tyre pressure or a defective
tyre has been detected and displayed
Also observe the important safety notes for
DISTRONIC PLUS (Y page 178).
The steering interventions are carried out with a
limited steering moment. The system requires
the driver to keep his hands on the steering
wheel and to steer himself.
If you do not steer yourself or if you take your
hands off the steering wheel for a prolonged
period of time, the system will first alert you with a visual warning. A steering wheel symbol
appears on the multifunction display. If you have
still not started to steer and have not taken hold
of the steering wheel after five seconds at the
latest, a warning tone also sounds to remind you to take control of the vehicle. Steering Assist
and Stop&Go Pilot switch to passive mode.
DISTRONIC PLUS remains activated.
Activating Steering Assist and Stop&Go
Pilot X
Press button ;.
Indicator lamp :lights up. The DTR+: DTR+:
steering
steering assist.
assist.on
onmessage appears on
the multifunction display. Steering Assist and Stop&Go Pilot are activated. Driving systems
185Driving and parking Z
:
Approx. 60 cm (corners)
; Approx. 80 cm (corners)
= Approx. 120 cm (centre)
? Approx. 100 cm (centre)
The sensors must be free of dirt, ice and slush.
Otherwise, they may not function correctly.
Clean the sensors regularly, taking care not to
scratch or damage them (Y page 335).
Minimum distance Centre Approx. 20 cm
Corners Approx. 15 cm
If there is an obstacle within this range, the rel-
evant warning displays light up and a warning
tone sounds. If the distance falls below the min- imum, the distance may no longer be shown. Warning displays :
Segments on the left-hand side of the vehi-
cle
; Segments on the right-hand side of the vehi-
cle
= Segments showing operational readiness
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is in the instru- ment cluster. The warning display for the rear
area is located on the roof lining in the rear
compartment.
The warning display for each side of the vehicle
is divided into five yellow and two red segments.
PARKTRONIC is operational if operational read-
iness indicator =lights up.
The selected transmission position and the
direction in which the vehicle is rolling deter-
mine which warning display is active when the
engine is running. Transmission posi-
tion Warning display
D
Front area activated
R,
Nor the vehicle is
rolling backwards Rear and front areas
activated
P
No areas activated
One or more segments light up as the vehicle
approaches an obstacle, depending on the vehi-
cle's distance from the obstacle.
From the:
R sixth segment onwards, you will hear an inter-
mittent warning tone for approximately two
seconds.
R seventh segment onwards, you will hear a
warning tone for approximately two seconds. 192
Driving systemsDriving an
d parking
This indicates that you have now reached the
minimum distance.
Deactivates/activates PARKTRONIC d
Switch on the dashboard
e Switch in the centre console :
Deactivating/activating PARKTRONIC
; Indicator lamp
If indicator lamp ;lights up, PARKTRONIC is
deactivated. Active Parking Assist is then also
deactivated.
i PARKTRONIC is automatically activated
when you turn the key to position 2in the
ignition lock.
Problems with PARKTRONIC Problem
Possible causes/consequences and
M
MSolutions Only the red segments in
the PARKTRONIC warn-
ing displays are lit. You
also hear a warning tone
for approximately two
seconds.
PARKTRONIC is then
deactivated and the indi-
cator lamp on the
PARKTRONIC button
lights up. PARKTRONIC has malfunctioned and has been deactivated.
X If problems persist, have PARKTRONIC checked at a qualified spe-
cialist workshop. Only the red segments in
the PARKTRONIC warn-
ing displays are lit.
PARKTRONIC is then
deactivated. The PARKTRONIC sensors are dirty or there is interference.
X
Clean the PARKTRONIC sensors (Y page 335).
X Switch the ignition back on. The problem may be caused by an external source of radio or ultra-
sound waves.
X See whether PARKTRONIC functions in a different location. Driving systems
193Driving and parking Z