2016 MERCEDES-BENZ SL ROADSTER engine

Setting a 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 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.
The last speed stored is increased or reduced.
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.
The last speed stored is increased or reduced.
i The speed indicated in the speedometer
may differ slightly from the speed stored.
i Cruise control is not deactivated if you
depress the accelerator pedal. For example, if you accelerate briefly to overtake, cruise con-
trol adjusts the vehicle's speed to the last
speed stored after you have finished overtak-
ing.
Deactivating cruise control There are several ways to deactivate cruise con-
trol:
X Briefly press the cruise control lever forwards
=.
or
X Brake. or
X Briefly press the cruise control lever in the
direction of arrow ;.
The variable limiter is selected. LIM indicator lamp :in the cruise control lever lights up.
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 ®
intervenes or you deactivate ESP ®
R Brake Assist intervenes
R you shift from transmission position D.
If cruise control is deactivated, you will hear a
warning tone. You will see the Cruise con‐
Cruise con‐
trol off trol off message in the multifunction display
for approximately five seconds.
i The last speed stored is cleared when you
switch off the engine. Distance Pilot DISTRONIC
General notes Distance Pilot DISTRONIC regulates the speed
and automatically helps you maintain the dis-
tance to the vehicle detected in front. Vehicles
are detected with the aid of the radar sensor
system. Distance Pilot DISTRONIC brakes auto-
matically to avoid exceeding the set speed or to
maintain the designated distance from the vehi- cle in front.
You must select a lower gear in good time on
long and steep downhill gradients, especially if
the vehicle is laden. 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.
If Distance Pilot DISTRONIC detects that there is a risk of a collision, you will be warned visually
and acoustically. Without your intervention, Dis-tance Pilot DISTRONIC cannot prevent a colli-
sion. 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 Distance Pilot DISTRONIC to assist you
when driving, the radar sensor system must be
operational. Driving systems
161Driving and parking Z

Cruise control lever
Cruise control lever
:
To store the current speed or a higher speed
; To set the specified minimum distance
= LIM indicator lamp
? To store the current speed or call up the last
stored speed
A To store the current speed or a lower speed
B To switch between Distance Pilot
DISTRONIC and variable limiter
C To deactivate Distance Pilot DISTRONIC
You can operate Distance Pilot DISTRONIC and
the variable limiter with the cruise control lever.
LIM indicator lamp =on the cruise control lever
indicates which system you have selected:
R LIM indicator lamp =
= off: Distance Pilot
DISTRONIC is selected.
R LIM indicator lamp = =on: variable limiter is
selected.
Selecting Distance Pilot DISTRONIC X
Check whether LIM indicator lamp =is off.
If it is off, Distance Pilot DISTRONIC 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 out. Distance Pilot DISTRONIC is
selected. Activating Distance Pilot DISTRONIC
and storing, maintaining and calling up
a speed Important safety notes
! When Distance Pilot DISTRONIC or the
HOLD function is activated, the vehicle
brakes automatically in certain situations.
To avoid damage to the vehicle, deactivate
Distance Pilot DISTRONIC and the HOLD
function in the following or similar situations:
R when towing away
R in a car wash
To activate Distance Pilot DISTRONIC, the fol-
lowing conditions must be fulfilled:
R the engine must be running. It may take up to
two minutes of driving before Distance Pilot
DISTRONIC is ready for use.
R the electric parking brake must be released.
R ESP ®
must be switched on, but not interven-
ing.
R Active Parking Assist must not be activated.
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 must be closed.
R the vehicle must not be skidding.
Activating
X Briefly pull the cruise control lever towards
you ?, up :or down A.
Distance Pilot DISTRONIC is activated.
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 desired
stored speed.
i If you do not fully release the accelerator
pedal, the Distance Pilot passive Distance Pilot passive 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 Distance Pilot DISTRONIC when stationary. The lowest speed that can be
set is 30 km/h. Driving systems
163Driving and parking Z

i
The following function is not operational in
all countries.
Distance Pilot DISTRONIC uses additional infor- mation from your navigation system so that it
can adapt to certain traffic situations. This is the
case if, while following a vehicle, Distance Pilot
DISTRONIC is active and you:
R approach or drive around a roundabout
R approach a T-junction
R turn off at a motorway exit
Even if the vehicle in front leaves the detection
range, Distance Pilot DISTRONIC temporarily
maintains the current driving speed and does
not accelerate. This is based on the current map
data in the navigation system.
Afterwards, the vehicle accelerates back to the
speed you set.
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 If Distance Pilot DISTRONIC 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.
The electric parking brake secures the vehicle
automatically if Distance Pilot DISTRONIC is
activated and:
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 R
a system fault occurs
R the power supply is insufficient
If a malfunction in the electric parking brake
occurs, then the transmission may also be shif-
ted into position Pautomatically.
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 or press the cruise
control lever repeatedly until the desired
speed is reached.
X Release the cruise control lever.
The new speed is stored. Distance Pilot
DISTRONIC is activated and adjusts the vehi-
cle'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 : to the pressure point for a higher speed
or down Afor a lower speed.
The last speed stored is increased or reduced.
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 Afor a lower speed.
The last speed stored is increased or reduced.
Setting the specified minimum distance You can set the specified minimum distance for
Distance Pilot DISTRONIC by varying the time
span between one and two seconds. With this
function you can set the minimum distance that Distance Pilot DISTRONIC maintains to the vehi-
cle in front, dependent on vehicle speed. You
can see this distance in the multifunction dis-
play (Y page 166).
The specified minimum distance can be
changed when Distance Pilot DISTRONIC is acti- vated or deactivated.
Make sure that you maintain a sufficient and
safe distance from the vehicle in front. Adjust
the distance to the vehicle in front if necessary. Driving systems
165Driving and parking Z

Deactivating Distance Pilot DISTRONIC
Cruise control lever
There are several ways to deactivate Distance
Pilot DISTRONIC:
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 =.
The variable limiter is selected. LIM indicator lamp ;in the cruise control lever lights up.
When you deactivate Distance Pilot DISTRONIC,
the Distance Pilot off
Distance Pilot off message will appear
in the multifunction display for approximately
five seconds.
i The last speed stored remains stored until
you switch off the engine.
i Distance Pilot DISTRONIC is not deactivated
if you depress the accelerator pedal. If you
accelerate to overtake, Distance Pilot
DISTRONIC adjusts the vehicle's speed to the last speed stored after you have finished over-
taking.
Distance Pilot DISTRONIC is automatically deac- tivated if:
R you apply the electric parking brake or if the
vehicle is automatically secured with the elec-
tric parking brake
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 is open
R the vehicle has skidded If Distance Pilot DISTRONIC is automatically
deactivated, you will hear a warning tone. The
Distance Pilot off
Distance Pilot off message will appear in
the multifunction display for approximately five
seconds.
Tips for driving with Distance Pilot
DISTRONIC 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. Distance Pilot DISTRONIC will then
be deactivated.
Cornering, entering and exiting a bend The ability of Distance Pilot DISTRONIC to
detect vehicles when cornering is limited. Your
vehicle may brake unexpectedly or late.
Vehicles which are not driving in the mid-
dle of their lane Distance Pilot DISTRONIC may not detect vehi-
cles which are not driving in the middle of their
lane. The distance to the vehicle in front will be
too short. Driving syste
ms
167Driving an d parking Z

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 Pilot and
Stop&Go Pilot then switch to passive mode. Dis-
tance Pilot DISTRONIC remains active.
Activating Steering Pilot and Stop&Go
Pilot
X Activate Distance Pilot DISTRONIC with
Steering Pilot and Stop&Go Pilot function
using the on-board computer (Y page 207).
The Steering
Steering Pilot Piloton
onmessage appears in
the multifunctional display. The Steering Pilot and Stop&Go Pilot are switched on.
Information in the multifunction display If Steering Pilot and Stop&Go Pilot are activated
but not ready for a steering intervention, steer-
ing wheel symbol :appears in grey. If the sys-
tem provides you with support by means of
steering interventions, symbol :is shown in
green.
Deactivating Steering Pilot and Stop&Go
PilotX Deactivate Distance Pilot DISTRONIC with
Steering Pilot and Stop&Go Pilot function
using the on-board computer (Y page 207).
The Steering Pilot off
Steering Pilot off message appears
in the multifunction display. Steering Pilot and Stop&Go Pilot are deactivated.
When the Distance Pilot is deactivated or not
available, Steering Pilot and Stop&Go Pilot are
deactivated automatically. Speed limiter
General notes The limiter brakes automatically so that you do
not exceed the set speed. On long and steep
downhill gradients, especially if the vehicle is
laden, you must select a lower gear in good time.
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
overheating and wearing too quickly.
You can set a variable or permanent limit speed:
R variable for maximum permissible speeds,
e.g. in built-up areas
R permanent for long-term speed restrictions,
e.g. when driving with winter tyres fitted
(Y page 172)
i The speed indicated in the speedometer
may differ slightly from the speed stored.
Important safety notes If you fail to adapt your driving style, the limiter
can neither reduce the risk of an accident nor
override the laws of physics. The limiter cannot take into account road, weather or traffic con-
ditions. The limiter is only an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed and for braking in good
time.
If there is a change of drivers, advise the new
driver of the speed stored.
Variable speed limiter Cruise control lever
Cruise control lever
:
To store the current speed or a higher speed
; LIM indicator lamp
= To store the current speed or call up the last
stored speed
? To store the current speed or a lower speed
A To switch between cruise control or Dis-
tance Pilot DISTRONIC and variable limiter
B To deactivate the variable limiter 170
Driving systemsDriving and parking

You can operate cruise control or Distance Pilot
DISTRONIC and the variable limiter with the
cruise control lever.
LIM indicator lamp ;on the cruise control lever
indicates which system you have selected:
R LIM indicator lamp ; ;off: cruise control or
Distance Pilot DISTRONIC is selected.
R LIM indicator lamp ;
; on: variable limiter 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.
Selecting the variable speed limiter
X Check whether LIM indicator lamp ;is on.
If it is on, the variable limiter is already selec-
ted.
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. The variable limiter is selected.
Storing the current speed
X Briefly press the cruise control lever up :or
down ?.
The current speed is stored. You will see the
stored speed for five seconds in the multi-
function display.
Vehicles with cruise control: the stored speed
is permanently displayed in the status indica-
tor.
Vehicles with Distance Pilot DISTRONIC: the
segments from the start of the scale up to the
stored speed light up in the speedometer.
You can use the cruise control lever to limit the
speed to any speed above 30 km/h while the
engine is running.
Storing the current speed or calling 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 in 10 km/h incre-
ments: briefly press the cruise control lever
up : past 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 the speed limiter to passive
If you depress the accelerator pedal beyond the pressure point (kickdown), the limiter is
switched to passive mode. The following mes-
sage appears in the multifunction display: Lim‐
Lim‐
iter passive iter passive.
You can then exceed the stored speed. The lim-
iter 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 Limiter passive Limiter passive message in the multi-
function display disappears. Driving systems
171Driving and parking Z

Switching off the speed limiter
Cruise control lever
There are several ways to deactivate the varia-
ble limiter:
X Briefly press the cruise control lever forwards
=.
or
X Briefly press the cruise control lever in the
direction of arrow ;.
LIM indicator lamp :in the cruise control
lever goes out. The variable limiter is deacti-
vated.
Cruise control or Distance Pilot DISTRONIC is
selected.
It is not possible to deactivate the variable lim-
iter by braking.
i The last speed stored is cleared when you
switch off the engine.
Permanent limiter If you wish to restrict the maximum speed of the
vehicle for an extended period (e.g. when driving
with winter tyres), the desired maximum speed
can be set with the permanent limiter.
You can use the on-board computer to limit the speed to a value between 160 km/h and
240 km/h(Y page 211).
Shortly before the stored speed is reached, it
appears in the multifunction display. When you
confirm the message with aor%, display
messages no longer appear when switching off
the engine. The speed will only be displayed
again once the engine has been restarted.
The permanent limiter remains active even if the variable limiter is deactivated. The driven speed
will remain below the stored speed even in the
event of kickdown. HOLD function
General notes The HOLD function can assist the driver in the
following situations:
R when pulling away, especially on steep slopes
R when manoeuvring on steep slopes
R when waiting in traffic
The vehicle is kept stationary without the driver
having to depress the brake pedal.
The braking effect is cancelled and the HOLD
function is deactivated when you depress the
accelerator pedal to pull away.
Important safety notes G
WARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
R there is a malfunction in the system or in
the voltage supply
R the HOLD function is deactivated by the
accelerator pedal being depressed, e.g. by
a vehicle occupant
R the electrical system in the engine com-
partment, the battery or the fuses are tam-
pered with
R the battery is disconnected
There is a risk of an accident.
Before leaving the vehicle, always deactivate
the HOLD function and secure the vehicle
from rolling away.
! When Distance Pilot DISTRONIC or the
HOLD function is activated, the vehicle
brakes automatically in certain situations.
To avoid damage to the vehicle, deactivate
Distance Pilot DISTRONIC and the HOLD
function in the following or similar situations:
R when towing away
R in a car wash
Deactivating the HOLD function (Y page 173).172
Driving systemsDriving and parking

Activation conditions
You can activate the HOLD function if all of the
following conditions are fulfilled:
R the vehicle is stationary
R the engine is running or if it has been auto-
matically switched off by the ECO start/stop
function
R the driver's door is closed or your seat belt is
fastened
R the electric parking brake is released
R the transmission is in position D,Ror N
R Distance Pilot DISTRONIC is deactivated
Activating the HOLD function X
Make sure that the activation conditions are
met.
X Depress the brake pedal.
X Quickly depress the brake pedal further
until :appears in the multifunction display.
The HOLD function is activated. You can
release the brake pedal.
i If depressing the brake pedal the first time
does not activate the HOLD function, wait
briefly and then try again.
Deactivating the HOLD function The HOLD function is deactivated automatically
if:
R you depress the accelerator and the trans-
mission is in position Dor R.
R the transmission is in position P.
R you depress the brake pedal again with a cer-
tain amount of pressure until HOLD HOLDdisappears
from the multifunction display.
R you secure the vehicle using the electric park-
ing brake.
R you activate Distance Pilot DISTRONIC.
i After a short period, the vehicle is secured
by the electric parking brake, thus relieving
the service brake. When the HOLD function is activated, the trans-
mission is shifted automatically to position Pif:
R the driver's seat belt is not fastened and the
driver's door is open
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 the HOLD function is activated,
the vehicle is stationary and:
R a system fault occurs
R the power supply is insufficient
If a malfunction in the electric parking brake
occurs, then the transmission may also be shif-
ted into position P automatically. RACE START
Important safety notes i
RACE START must not be used on normal
roads. RACE START must only be activated
and used on dedicated road circuits, outside
of public road use.
i RACE START is only available in
Mercedes‑ AMG vehicles.
RACE START enables optimum acceleration
from a standing start. For this, a suitably high-
grip road surface is required, along with the
tyres and vehicle being in good condition. G
WARNING
If you use RACE START, individual tyres may
get into a spin and the vehicle could skid.
Depending on the selected ESP ®
mode, there
is an increased risk of skidding and having an accident. Make sure that no persons, animals
or obstacles are within range of the vehicle.
i Observe the safety notes on driving safety
systems (Y page 62).
Be sure to read the safety notes and informa-
tion on ESP ®
(Y page 67). Driving systems
173Driving and parking Z