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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 in 10 km/h incre-
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 in 1 km/h incre-
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 following mes-
sage appears in the multifunction display:
SPEEDTRONIC passive
SPEEDTRONIC passive.
You can then exceed the stored speed. SPEED-
TRONIC 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 passive SPEEDTRONIC passive message in the
multifunction display disappears. Deactivating variable SPEEDTRONIC
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.
LIM indicator lamp ;in the cruise control
lever goes out. Variable SPEEDTRONIC is
deactivated.
Cruise control or DISTRONIC PLUS is selec-
ted.
It is not possible to deactivate variable SPEED-
TRONIC by braking.
i The last speed stored is cleared when you
switch off the engine.
Permanent SPEEDTRONIC
You can use the on-board computer to perma-
nently limit the speed to a value between
160 km/h(e.g. for driving on winter tyres) and
the maximum design speed (Y page 247).
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). 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.
You must select a lower gear in good time on
long and steep downhill gradients, especially if
the vehicle is laden or towing a trailer. By doing
so, you will make use of the braking effect of the engine. This relieves the load on the brake sys-
tem and prevents the brakes from overheating
and wearing too quickly.
If DISTRONIC PLUS detects that there is a risk of
a collision, you will be warned visually and
acoustically. Without your intervention, 182
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DISTRONIC PLUS cannot prevent a collision. 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 driving in
front, or take evasive action, provided it is safe
to do so.
For DISTRONIC PLUS to assist you, the radar
sensor system must be operational.
DISTRONIC PLUS operates in the 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
If you fail to adapt your driving style, DISTRONIC PLUS can neither reduce the risk of an accident
nor override the laws of physics. DISTRONIC
PLUS cannot take road and weather conditions
or traffic conditions into account. DISTRONIC
PLUS is only an aid. You are responsible for the distance to the vehicle in front, for vehicle
speed, for braking in good time and for staying in
lane.
Do not use DISTRONIC PLUS:
R in road and traffic conditions which do not
allow you to maintain a constant speed, e.g. in
heavy traffic 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.
In particular, the detection of obstacles can be
impaired in the case of:
R dirt on the sensors or obscured sensors
R snow or heavy rain
R interference by other radar sources
R the possibility of strong radar reflections, for
example, in multi-storey car parks
If DISTRONIC PLUS no longer detects a vehicle
in front, it may unexpectedly accelerate to the
speed stored. Driving systems
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This speed can:
R be too high for a filter lane or a slip road
R be so high in the right lane that you pass vehi-
cles driving on the left
R be so high in the left lane that you pass vehi-
cles driving on the right
If there is a change of drivers, advise the new
driver of the speed stored.
Cruise control lever :
To activate or increase speed
; To set the specified minimum distance
= LIM indicator lamp
? To activate at the current speed/last stored
speed
A To activate or reduce speed
B To switch between DISTRONIC PLUS and
variable SPEEDTRONIC
C To deactivate DISTRONIC PLUS
You can operate DISTRONIC PLUS and variable
SPEEDTRONIC with the cruise control lever.
LIM indicator lamp =on the cruise control lever
indicates which function you have selected:
R LIM indicator lamp = =off: DISTRONIC PLUS
is selected
R LIM indicator lamp =
= on: variable SPEED-
TRONIC is selected.
Selecting DISTRONIC PLUS X
Check whether LIM indicator lamp =is off.
If it is off, DISTRONIC PLUS is already selec-
ted.
If it is not, press the cruise control lever in the
direction of arrow B.
LIM indicator lamp =in the cruise control
lever goes out. DISTRONIC PLUS is selected. Activating DISTRONIC PLUS Activation conditions
To activate DISTRONIC PLUS, the following con-
ditions must be fulfilled:
R the engine must be running. It may take up to
two minutes of driving before DISTRONIC
PLUS is ready for use.
R the electric parking brake must be released.
R ESP ®
must be switched on, but not interven-
ing.
R the transmission must be in position D.
R the driver's door must be closed when you
shift from Pto Dor your seat belt must be
fastened.
R the front-passenger door and the rear doors
must be closed.
R DSR must be deactivated.
R the vehicle must not be skidding.
R the DISTRONIC PLUS function must be selec-
ted (Y page 184).
Activating
X Briefly pull the cruise control lever towards
you ?, up :or down A.
DISTRONIC PLUS is activated.
X Remove your foot from the accelerator pedal.
Your vehicle adapts its speed to that of the
vehicle in front, but only up to the desired
stored speed.
i If you do not fully release the accelerator
pedal, the DISTRONIC PLUS inactive DISTRONIC PLUS inactive mes-
sage appears in the multifunction display. The
set distance to a slower-moving vehicle in
front will then not be maintained. The position of the accelerator pedal will determine the
speed.
You can also activate DISTRONIC PLUS when
stationary. The lowest speed that can be set is
30 km/h. X Briefly pull the cruise control lever towards
you ?, up :or down A.
DISTRONIC PLUS is activated.
Activating at the current speed/last
stored speed G
WARNING
If you call up a stored speed and this is dif-
ferent from the current speed, the vehicle 184
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accelerates or brakes. If you do not know
what the stored speed is, the vehicle may
accelerate or brake unexpectedly. There is a
risk of an accident.
Take the traffic conditions into account
before calling up the stored speed. If you do
not know what the stored speed is, store the
desired speed again.
X Briefly pull the cruise control lever towards
you ?.
X Remove your foot from the accelerator pedal.
DISTRONIC PLUS is on and, when activated
for the first time, accepts the current speed or
it adjusts the vehicle's speed to the speed
stored.
Driving with DISTRONIC PLUS Pulling away and driving
X If you want to pull away with DISTRONIC
PLUS: remove your foot from the brake pedal.
X Briefly pull the cruise control lever towards
you ?.
or X Accelerate briefly.
Your vehicle pulls away and adapts its speed
to that of the vehicle in front. If no vehicle is
detected in front, your vehicle accelerates to the set speed.
The vehicle can also pull away when it is facing
an unidentified obstacle or is driving on a differ-
ent line from another vehicle. The vehicle then
brakes automatically.
If there is no vehicle in front, DISTRONIC PLUS
operates in the same way as cruise control.
If DISTRONIC PLUS detects that the vehicle in
front has slowed down, it brakes your vehicle. In
this way, the distance you have selected is main- tained.
If DISTRONIC PLUS detects a faster-moving
vehicle in front, it increases the driving speed.
However, the vehicle is only accelerated up to
the speed you have stored.
Selecting the drive program DISTRONIC PLUS supports a sporty driving style
if you have selected the SportorSport Plus
drive program (Y page 158). Acceleration
behind the vehicle in front or to the set speed is then noticeably more dynamic. If you have selected the
Comfortdrive program, the vehicle
accelerates more gently. This setting is recom-
mended in stop-start traffic.
Changing lanes If you change to the overtaking lane, DISTRONIC
PLUS supports you if:
R you are driving faster than 70 km/h
R you switch on the respective turn signal
R DISTRONIC PLUS does not detect a danger of
collision
If these conditions are met, your vehicle is accel- erated. Acceleration will be interrupted if chang-
ing lanes takes too long or if the distance
between your vehicle and the vehicle in front
becomes too small.
i Vehicles with COMAND Online:
when you
change lanes, DISTRONIC PLUS monitors the right lane in the case of left-side traffic or the
left lane in the case of right-side traffic.
Vehicles with Audio 20: when you change
lanes, DISTRONIC PLUS monitors the left lane on left-hand-drive vehicles or the right lane onright-hand-drive vehicles.
Vehicles with COMAND Online i
The following function is only available in
vehicles with the Driving Assistance Plus
package.
The function is not operational in all coun-
tries.
DISTRONIC PLUS uses additional information
from your navigation system so that it can adapt to certain traffic situations. This is the case if,
while following a vehicle, DISTRONIC PLUS is
active and you:
R approach or drive around a roundabout
R approach a T-junction Driving systems
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R
turn off at a motorway exit
R approach a tollgate
Even if the vehicle in front leaves the detection
range, DISTRONIC PLUS temporarily maintains
the current driving speed and does not acceler-
ate. This is based on the current map data in the navigation system.
Afterwards, the vehicle accelerates back to the
set speed you specified.
The system takes into account the fact that
overtaking on the right is not permitted on
motorways or high-speed major roads at speeds
above 80 km/h. The driving speed is adjusted to the speed of the queue of vehicles in the adja-
cent lane to the left.
i Prevention of overtaking on the right applies
to countries where traffic drives on the right.
In countries where traffic drives on the left,
overtaking on the left is prevented accord-
ingly.
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 vehi-
cle occupant or from outside the vehicle.
R the electrical system in the engine com-
partment, 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 sta-
tionary and you do not need to depress the
brake. After a short period, the vehicle is secured by
the electric parking brake, thus relieving the
service brake.
Depending on the specified minimum distance,
your vehicle will come to a standstill at a suffi-
cient distance behind the vehicle in front. The
specified minimum distance is set using the
control on the cruise control lever.
When the vehicle is stationary and DISTRONIC
PLUS is activated, position P is automatically
selected if:
R the driver's door is open and the driver's seat
belt is unfastened
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/stop
function
The electric parking brake secures the vehicle
automatically if DISTRONIC PLUS is activated
when the vehicle is stationary and:
R a system fault occurs
R the power supply is insufficient
On steep uphill or downhill inclines or if there is
a malfunction, the transmission may also be
automatically shifted into position P.
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 Afor 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. DISTRONIC PLUS is
activated and adjusts the vehicle's speed to
the new speed stored.
X To adjust the set speed in 1 km/h incre-
ments:
briefly press the cruise control lever
up : or down Ato the pressure point.
The last stored speed increases or decreases in 1 km/h increments.
X To adjust the set speed in 10 km/
hincre-
ments: briefly press the cruise control lever
up : or down Abeyond the pressure point.
The last stored speed increases or decreases
in 10 km/h increments.
i If you accelerate to overtake, DISTRONIC
PLUS adjusts the vehicle's speed to the last 186
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speed stored after you have finished overtak-
ing.
Setting the specified minimum distance You can set the specified minimum distance for
DISTRONIC PLUS by varying the time span
between one and two seconds. With this func-
tion, you can set the minimum distance that
DISTRONIC PLUS maintains to the vehicle in
front, dependent on vehicle speed. You can see
this distance in the multifunction display
(Y page 188).
X To increase: turn control;in direction =.
DISTRONIC PLUS then maintains a greater
distance between your vehicle and the vehicle
in front.
X To decrease: turn control;in direction :.
DISTRONIC PLUS then maintains a shorter
distance between your vehicle and the vehicle
in front.
i Make sure that you maintain a sufficient and
safe distance from the vehicle in front. Adjust the distance to the vehicle in front if neces-
sary.
Deactivating DISTRONIC PLUS There are several ways to deactivate
DISTRONIC PLUS:
X Briefly press the cruise control lever for-
wards :.
or X Brake, unless the vehicle is stationary.
or X Briefly press the cruise control lever in the
direction of arrow =.
Variable SPEEDTRONIC is selected. LIM indi-
cator lamp ;in the cruise control lever is on.
If you deactivate DISTRONIC PLUS, the
DISTRONIC PLUS off DISTRONIC PLUS off message appears in the
multifunction display for approximately five sec-
onds.
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 acceler- ate to overtake, DISTRONIC PLUS adjusts the
vehicle's speed to the last speed stored after
you have finished overtaking.
DISTRONIC PLUS is automatically deactivated
if: R you apply the electric parking brake or if the
vehicle is automatically secured with the elec-
tric parking brake
R you are driving slower than 25 km/h and
there is no vehicle in front, or if the vehicle in
front is no longer detected
R ESP ®
intervenes 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 you activate DSR
R the vehicle has skidded
If DISTRONIC PLUS is deactivated, you will hear
a warning tone. The DISTRONIC DISTRONICPLUS
PLUSoff
offmes-
sage appears in the multifunction display for
approximately five seconds. Driving systems
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Displays in the instrument cluster
Displays in the speedometer
Example: DISTRONIC PLUS displays in the speed-
ometer
When DISTRONIC PLUS is activated, one or two segments ;in the set speed range light up.
If DISTRONIC PLUS detects a vehicle in front,
segments ;between speed of the vehicle in
front =and stored speed :light up.
i For design reasons, the speed displayed in
the speedometer may differ slightly from the
speed set for DISTRONIC PLUS.
Assistance graphic display when
DISTRONIC PLUS is deactivated :
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
X Select the Assistance graphic Assistance graphic function
using the on-board computer (Y page 243).Assistance graphic display when
DISTRONIC PLUS is activated
:
Vehicle in front, if detected
; Specified minimum distance to the vehicle
in front; adjustable
= Own vehicle
? DISTRONIC PLUS activated
X Select the Assistance graphic Assistance graphic function
using the on-board computer (Y page 243).
You will see the stored speed for approximately five seconds when you activate DISTRONIC
PLUS.
Tips for driving with DISTRONIC PLUS General notes
Pay particular attention in the following traffic
situations:
R Cornering, going into and coming out of a
bend
R Vehicles which are not driving in the middle of
their lane
R Other vehicles changing lane
R Narrow vehicles
R Obstructions and stationary vehicles
R Crossing vehicles
In such situations, brake if necessary.
DISTRONIC PLUS is then deactivated. 188
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Cornering, going into and coming out of a
bend The ability of DISTRONIC PLUS to detect vehi-
cles when cornering is limited. Your vehicle may
brake unexpectedly or late.
Vehicles which are not driving in the mid-
dle of their lane DISTRONIC PLUS may not detect vehicles which
are not driving in the middle of their lane. The
distance to the vehicle in front will be too short.
Other vehicles changing lane DISTRONIC PLUS has not detected the vehicle
cutting in yet. The distance to this vehicle will be too short. Narrow vehicles
DISTRONIC PLUS has not yet detected the vehi-
cle in front on the edge of the carriageway,
because of its narrow width. The distance to thevehicle in front will be too short.
Obstructions and stationary vehicles DISTRONIC PLUS does not brake for obstacles
or stationary vehicles. If, for example, the detec-
ted vehicle turns a corner and reveals an obsta- cle or stationary vehicle, DISTRONIC PLUS will
not brake for these.
Crossing vehicles DISTRONIC PLUS may mistakenly detect vehi-
cles that are crossing your lane. Activating Driving systems
189Driving and parking Z