Page 145 of 373

B
To switch between Distronic Plus and var-
iable Speedtronic
C To deactivate Distronic Plus
Selecting Distronic Plus X
Check whether LIM indicator lamp =is off.
If it is off, Distronic Plus is already selected.
If it is not, press the cruise control lever in
the direction of arrow B.
LIM indicator lamp =in the cruise control
lever goes off. Distronic Plus is selected.
Switching on Distronic, storing the cur-
rent speed and maintaining it G
Risk of accident
The vehicle can be braked when Distronic Plus
is activated. For this reason, deactivate Dis-
tronic Plus if the vehicle is to be set in motion
by other means (e.g. in a car wash or by tow-
ing).
You can activate Distronic Plus in the follow-
ing circumstances:
R after the engine has been running for about
two minutes
R if the parking brake is not applied
R if ESP ®
is activated
R if the automatic transmission* is in position
D
R if the bonnet is closed
R if the driver's door is closed and you switch
from Pto Dor your seat belt is fastened.
R if the front-passenger door and the rear
doors are closed
Activating while driving
When driving at speeds below 30 km/h, you
can only activate Distronic Plus if the vehicle
in front has been detected and is shown in the
multi-function display. If the vehicle in front is
not shown in the multi-function display and is
no longer being detected, because it has changed lanes, for example, Distronic Plus is
deactivated and a tone sounds.
X
Briefly pull the cruise control lever towards
you ?or press it up :or down Ato the
pressure point.
Distronic Plus is selected.
X Keep the cruise control lever pressed
up : or down Auntil the desired speed
is set.
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 stored
speed.
i If you do not fully release the accelerator
pedal, the DISTRONIC PLUS suspended
message appears in the multi-function dis-
play. The set distance to a slower-moving
vehicle in front will then not be maintained.
You will be driving at the speed you deter-
mine by the position of the accelerator
pedal.
Activating when driving towards a sta-
tionary vehicle
If the vehicle in front of you is stationary, you
can only activate Distronic Plus once your
vehicle is stationary as well.
X Briefly pull the cruise control lever towards
you ?.
Distronic Plus is selected.
i Distronic Plus can only be activated at
under 30 km/hi f a vehicle in front has been
detected. Therefore, the Distronic Plus dis-
tance display in the instrument cluster
should be activated.
X Keep the cruise control lever pressed
up : or down Auntil the desired speed
is set.
i You can use the cruise control lever to set
the stored speed and the thumbwheel on
the cruise control lever to set the specified
minimum distance (Y page 145).142
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Page 146 of 373

Pulling away
X
If the vehicle in front pulls away: 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.
Driving
If there is no vehicle in front, Distronic Plus
operates in the same way as cruise control.
If a slower-moving vehicle is detected in front,
Distronic Plus causes your vehicle to brake
and maintain a preset distance to the vehicle
in front.
If Distronic Plus detects a faster-moving vehi-
cle in front, it increases the driving speed, but
only up to the stored speed. G
Risk of accident
If you depress the brake, Distronic Plus is
deactivated unless your vehicle is stationary.
Distronic Plus then no longer brakes your
vehicle. The driver is fully responsible for the
vehicle's distance from other vehicles, its
speed and for braking in good time.
Stopping G
Risk of accident
The Distronic Plus braking effect is cancelled
and the vehicle can start moving if:
R Distronic Plus is deactivated using the
cruise control lever
R you accelerate
R the system or the power supply is disrup-
ted, e.g. due to battery failure
R the electrical system in the engine com-
partment or the fuses have been tampered
with
R the battery is disconnected G
Risk of accident
Never get out of the vehicle when Distronic
Plus is activated.
Distronic Plus must never be operated or
deactivated by a passenger or from outside
the vehicle.
Distronic Plus does not replace the parking
brake and must not be used for parking.
If you wish to leave the vehicle or park it,
deactivate Distronic Plus and secure the vehi-
cle 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
stationary and you do not need to depress the
brake.
i Depending on the specified minimum dis-
tance, your vehicle will come to a standstill
at a sufficient distance behind the vehicle
in front. The specified minimum distance is
set using the thumbwheel on the cruise-
control lever.
Vehicles with automatic transmission
with selector lever
When Distronic Plus is activated and the vehi-
cle is at a standstill, a warning message
appears in the multi-function display if:
R the driver's door is opened and you release
the seat belt.
R the engine is switched off, unless it is auto-
matically switched off by the ECO Start/
Stop function.
R the bonnet is opened.
Select Park (P)
X Move the selector lever to Pto prevent the
vehicle from rolling away.
Distronic Plus is deactivated. The warning
message in the multi-function display dis-
appears. Driving systems
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The horn will also sound at regular intervals if
Distronic Plus is activated and you:
R
switch off the engine, open the driver's
door and remove your seat belt.
R open the bonnet.
The sounding of the horn alerts you to the fact
that the vehicle has been parked while Dis-
tronic Plus is still activated. The sound
becomes louder if you attempt to lock the
vehicle. The vehicle is not locked until Dis-
tronic Plus is deactivated.
i If the ignition has been switched off, the
engine cannot be started again until Dis-
tronic Plus has been deactivated.
If Distronic Plus is activated and a fault occurs
in the system or there is a disruption in the
power supply while the vehicle is stationary,
the Brake immediately message is shown
in the multi-function display. Immediately
depress the brake firmly until the warning
message in the multi-function display goes
out or move the selector lever to P. Distronic
Plus is deactivated.
Vehicles with automatic transmission
with the DIRECT SELECT lever*
When the vehicle is stationary and Distronic
Plus is switched on, Pis automatically selec-
ted if:
R the driver's door is opened and you release
the seat belt.
R the engine is switched off, unless it is auto-
matically switched off by the ECO Start/
Stop function.
R the bonnet is opened.
R a system fault occurs.
R the power supply is not sufficient. Setting a speed X
Press the cruise control lever to the pres-
sure point, 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.
Making adjustments in 1 km/h incre-
ments X
Briefly press the cruise control lever to the
pressure point, up :for a higher speed or
down Afor a lower speed.
The last speed stored is increased or
reduced.
Making adjustments in 10 km/h incre-
ments X
Briefly press the cruise control lever
beyond the pressure point, up :for a
higher speed or down Afor a lower speed.
The last speed stored is increased or
reduced.
Storing the current speed or calling up
the last stored speed G
Risk of accident
Only select a stored speed if you know what
that speed is and whether it is suitable for the
current situation. Otherwise, sudden acceler-
ation or braking could endanger you or others.
X Briefly pull the cruise control lever towards
you ?.
X Remove your foot from the accelerator
pedal.
Distronic Plus is activated. The first time it
is activated, the current speed is stored.
Otherwise, it sets the vehicle cruise speed
to the previously stored value. 144
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Page 148 of 373

Setting the specified minimum dis-
tance for Distronic Plus 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 keeps to the vehicle in front,
dependent on vehicle speed. You can see this
distance in the multi-function display
(Y page 145). X
To increase: turn thumbwheel ;towards
=.
Then, Distronic Plus maintains a greater
distance between your vehicle and the
vehicle in front.
X To decrease: turn thumbwheel ;
towards :.
Then, Distronic Plus maintains a shorter
distance between your vehicle and the
vehicle in front.
i Make sure that you maintain the mini-
mum distance to the vehicle in front
required by law. Adjust the distance to the
vehicle in front if necessary. Distronic Plus displays in the speedom-
eter When Distronic Plus is activated, one or two
segments
;in the set speed range light up.
i For design reasons, the speed displayed
in the speedometer may differ slightly from
the speed set for Distronic Plus.
If Distronic Plus detects a vehicle in front,
segments ;between speed of the vehicle in
front :and stored speed =light up.
Distronic Plus displays in the multi-
function display In the Assistance menu (Y
page 130) of the
on-board computer, you can select the dis-
tance display and activate or deactivate the
PRE-SAFE ®
Brake*.
Display when Distronic Plus is switched
off
X Select the Distance display function
using the on-board computer
(Y page 130).
When Distronic Plus is deactivated, you will
see the following in the multi-function display: Driving systems
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* optional
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:
Symbol for activated PRE-SAFE ®
Brake
; Vehicle in front, if detected
= Distance indicator, displaying current dis-
tance to the vehicle in front
? Specified minimum distance to the vehi-
cle in front, adjustable
A Own vehicle
Display when Distronic Plus is switched
on
X Select the Distance display function
using the on-board computer
(Y page 130).
You will see the stored speed for about five
seconds when you activate Distronic Plus.
After this time you will see the following in the
multi-function display while Distronic Plus is
activated: :
Distronic Plus activated
; Own vehicle
= Specified minimum distance to the vehi-
cle in front, adjustable
? Vehicle in front, if detected Deactivating Distronic Plus
There are several ways to deactivate Dis-
tronic 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
lights up.
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 briefly to overtake, Distronic Plus
adjusts the vehicle's speed to the last
speed stored after you have finished over-
taking.
Distronic Plus is automatically deactivated if:
R you depress the parking brake.
R you are driving slower than 25 km/h and
there is no vehicle in front, or the vehicle in
front is no longer detected.
R ESP ®
intervenes or you deactivate ESP ®
.
R you shift the automatic transmission* to
N, Por R. 146
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Page 150 of 373

R
the vehicle is near a radio telescope facility
(Y page 362).
R you switch off the radar sensor system
(Y page 135).
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.
If Distronic Plus is deactivated, you will hear
a warning tone. You will see the DISTRONIC
PLUS off message in the multi-function dis-
play for approximately five seconds.
If the vehicle has been stopped by Distronic
Plus and a fault occurs in the system, the
Brake immediately message appears in the
multi-function display. Depress the brake
pedal immediately so that the vehicle does
not roll away. Distronic Plus is deactivated
and the message disappears.
Tips for driving with Distronic Plus 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, entering and exiting a bend
The ability of Distronic Plus to detect vehicles
when cornering is limited. Your vehicle may
brake unexpectedly or too late. Vehicles travelling on a different line
Distronic Plus may not detect vehicles trav-
elling on a different line. 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 does not detect the vehicle in
front on the edge of the carriageway, because Driving systems
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Page 151 of 373

of its narrow width. The distance to the vehi-
cle in front will be too short.
Obstructions and stationary vehicles Distronic Plus does not brake for obstacles or
stationary vehicles. For example, if the detec-
ted vehicle turns a corner 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 Dis-
tronic Plus at traffic lights with crossing traf-
fic, for example, could cause your vehicle to
pull away unintentionally. Speedtronic
Speedtronic brakes automatically so that you
do not exceed the set speed. On long and
steep downhill gradients, especially if the
vehicle is laden or towing a trailer, you must
shift to a lower 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
Risk of accident
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. G
Risk of accident
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid.
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 restric-
tions, e.g. for driving on winter tyres
(Y page 150) G
Risk of accident
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 With the cruise control lever, you can operate
cruise control, Distronic Plus* and variable
Speedtronic.148
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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 selec-
ted.
R LIM indicator lamp lit:
Variable Speedtronic 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 a higher
speed
; LIM indicator lamp
= To store the current speed or to call up
the last stored speed
? To store the current speed or a lower
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. Variable Speedtronic is
selected. G
Risk of accident
If there is a change of drivers, advise the new
driver of the limit speed stored.
Only use Speedtronic when you do not have
to accelerate suddenly to a speed higher than
the stored limit speed allows. 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)
It is not possible to deactivate variable Speed-
tronic 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 multi-function display.
The segments in the multi-function display
light up from the start of the scale up to the
stored speed.
Storing the current speed or calling up
the last stored speed G
Risk of accident
Only select a stored speed if you know what
that speed is and whether it is suitable for the
current driving and traffic situation. Other-
wise, sudden braking could endanger you or
others.
X Briefly pull the cruise control lever towards
you =. Driving systems
149Controls
* optional
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