DRIVER SUPPORT
}}
287
3.
Press the (2) button on the steering
wheel keypad again.
>
Another function will be activated.
Related information
Speed limiter (p. 283) Cruise Control limitations
On steep downgrades, the Speed limiter's brak-
ing capacity may not be sufficient and the set
maximum speed may be exceeded. If this hap-
pens,
Speed limit exceeded will be displayed in
the instrument panel to alert the driver.
NOTE A text message on exceeded max. speed is
activated if the speed is exceeded by at least
3 km/h (ca 2 mph).
Related information
Speed limiter (p. 283) Automatic Speed Limiter
The Automatic Speed Limiter (ASL) function
helps the driver adapt the vehicle's maximum
speed to the posted speed limits.
The Speed Limiter (SL 18
) function can be
switched to Automatic Speed Limiter (ASL).
The Automatic Speed Limiter function uses
speed information from the Road Sign Informa-
tion function (RSI) to automatically adapt the
vehicle's maximum speed. 18
Speed Limiter
||DRIVER SUPPORT
288
WARNING
The ASL function is supplementary driver
support intended to facilitate driving and
help make it safer – it cannot handle all
situations in all traffic, weather and road
conditions.
Even if the driver can clearly see the
speed limit sign, the speed information
from the Road Sign Information (RSI)
function to ASL may be incorrect. In such
cases, the driver must intervene and
accelerate or brake to an appropriate
speed.
ASL is not a substitute for the driver's
attention and judgment. The driver is
always responsible for ensuring the vehi-
cle is driven in a safe manner, at the
appropriate speed, with an appropriate
distance to other vehicles, and in accord-
ance with current traffic rules and regula-
tions.
See also the heading "Road Sign Infor-
mation limitations".Is SL or ASL active?The symbols in the instrument panel indicate
which Speed Limiter function is active: Symbol
SLASL A
✓ ✓ Road sign symbol
B
after "70" = ASL is
activated. ✓ A
WHITE symbol: The function is active. GRAY symbol: Standby
mode.
B See "ASL symbol" below for an explanation of the symbol's dif-
ferent colors.
ASL symbol
The road sign symbol (next to the
stored speed ("70" here) in the center
of the speedometer) can be displayed
in three different colors, which are
explained in the following table: Road sign
symbol's color Explanation
Greenish-yel- low ASL is active
Gray
ASL is in standby mode
Amber/orange ASL is temporarily in standby mode, e.g. because
a speed limit sign could not
be read.
Related information
Speed limiter (p. 283)
Activating/deactivating Automatic Speed
Limiter (p. 289)
Changing Automatic Speed Limiter tolerance
(p. 290)
Automatic Speed Limiter limitations (p. 291)
DRIVER SUPPORT
289
Activating/deactivating Automatic
Speed Limiter
The Automatic Speed Limiter (ASL) is a supple-
ment to the Speed Limiter (SL) and can be acti-
vated/deactivated.
Activating ASLThe Speed Sign Assist but- ton is located in the center dis-
play's Function view. To activate the Automatic Speed Limiter:
1.
Tap the Speed Sign Assist button.
>
ASL will go into standby mode and a
green indicator light will illuminate. A road
sign symbol will be displayed in the center
of the speedometer in the instrument
panel.
2. Pressing the button on the steering
wheel keypad.
>
ASL will be activated and set to the vehi-
cle's current speed.
NOTE
If the Automatic Speed Limiter function is
activated, road sign information is shown
in the driver display even if RSI 19
is not
activated.
To remove road sign information from the
driver display, you must deactivate both
Automatic Speed Limiter and RSI.
When the Automatic Speed Limiter func-
tion is activated but RSI is deactivated, no
warnings are given from RSI. RSI must
also be activated for warnings to be pos-
sible.
Deactivating ASLTo deactivate the Automatic Speed Limiter:
–
Tap the
Speed Sign Assist button in Func-
tion view.
>
ASL will be deactivated, the indicator light
in the button will be GRAY and SL will be
activated instead.
WARNING The vehicle will no longer follow the posted
maximum speed after switching from ASL to
SL – it then only follows the maximum speed
stored in the memory.
Related information
Speed limiter (p. 283)
Automatic Speed Limiter (p. 287)
Activating/deactivating Road Sign Informa-
tion (p. 365) 19
Road Sign Information (RSI)
DRIVER SUPPORT
}}
293
30 km/h (20 mph) or higher. The lowest speed
that can be set is 30 km/h (20 mph).
To start Cruise Control:
– With the function displayed, press
(2) on the steering wheel keypad.
>
Cruise Control will be started and the
vehicle's current speed will be set.
NOTE Cruise control can then not be connected at
speeds below 30 km/h (20 mph).
Related information
Cruise control (p. 291) Managing Cruise Control speed
Cruise Control (CC 25
) can be set to various
speeds.
Setting/changing set speed Note: This illustration is general and details may vary
depending on model and market.
For vehicles with only CC
–
Change a set speed by pressing the (1)
or (3) buttons briefly or by pressing and
holding them:
Press briefly: Press briefly: each press
changes the speed in +/- 1 mph
(+/- 1 km/h) increments.
Press and hold: release the button when
the set speed indicator (4) has moved to
the desired speed.
The most recently set speed will be stored.
If speed is increased by depressing the accelera-
tor pedal while pressing the (1) button on
the steering wheel, the vehicle's speed when the
button is pressed will be stored as the set speed.
Temporarily increasing speed using the accelera-
tor pedal, e.g. when passing another vehicle, will
not affect the setting. The vehicle will return to
the set speed when the accelerator pedal is
released. 24
Cruise Control
25 Cruise Control
DRIVER SUPPORT
* Option/accessory.
296 Switching off Cruise Control
Cruise control (Cruise Control - CC) can be
turned off. Function buttons and symbols
29
.
To turn off Cruise Control:
1. Press the button on the steering wheel
(2).
>
Cruise Control will go into standby mode.
2. Press the ◀ (1) or ▶ (3) buttons on the
steering wheel to select another function.
>
The Cruise Control symbol (4) in
the instrument panel will go out and the
set speed will be erased. 3.
Press the (2) button on the steering
wheel keypad again.
>
Another function will be activated.
NOTE In vehicles equipped with Adaptive Cruise
Control*, it is possible to switch between
cruise control and Adaptive Cruise Control –
see the heading "Switching between CC and
ACC".
Related information
Cruise control (p. 291)
Switching between Cruise Control and Adap-
tive Cruise Control (p. 313) Distance Alert*
30
The Distance Alert 31
function can help the driver
become aware if the time interval to the vehicle
in front is too short.
However, the vehicle must be equipped with a
head-up display in order to display the Distance
Alert, which will then be indicated by a symbol
on the windshield as long as the time interval to
the vehicle ahead is shorter than the set time
interval.
Distance Alert is active at speeds above 30 km/h
(20 mph) and only reacts for vehicles ahead mov-
ing in the same direction as your vehicle. No dis-
tance information is provided for oncoming, slow-
moving or stationary vehicles. 29
Note: This illustration is general and details may vary depending on mod\
el.
30 The Distance Alert function is only available in vehicles that can displ\
ay information on the windshield with a head-up display.
31 Distance Alert
DRIVER SUPPORT
}}
* Option/accessory. 297Distance Alert warning light on the windshield
32
.
A warning light will appear on the windshield and
glow steadily if the time interval to the vehicle
ahead is shorter than the set time interval.
NOTE Visual warnings on the windshield may be dif-
ficult to notice in cases of strong sunlight,
reflections, extreme light contrasts, or if the
driver is wearing sunglasses or is not looking
straight ahead.
NOTE
Distance Alert is only available in vehicles
that can display information on the wind-
shield with a head-up display.
Distance Alert is deactivated while Adap-
tive Cruise Control or Pilot Assist is
active.
WARNING Distance Alert only reacts of the time interval
to the vehicle ahead is shorter than the preset
value – vehicle speed is not affected.
Related information
Head-up display for Distance Alert (p. 297)
Activating/deactivating Distance Alert
(p. 298)
Setting a time interval for Distance Alert
(p. 298)
Distance Alert limitations (p. 299) Head-up display for Distance Alert
33
In vehicles equipped with a head-up display*, a
symbol will be displayed on the windshield as
long as the time interval to the vehicle ahead is
shorter than the set time interval. Distance Alert warning symbol on the windshield
34
.
For this to be possible, however, the
Show
Driver Support function must be activated
under Settings in the center display's menus (see
"Head-up display" for instructions). 32
Note: This illustration is general and details may vary depending on mod\
el.
33 The Distance Alert function is only available in vehicles that can displ\
ay information on the windshield with a head-up display.
34 Note: This illustration is general and details may vary depending on mod\
el.
||DRIVER SUPPORT
* Option/accessory.
298
NOTE Visual warnings on the windshield may be dif-
ficult to notice in cases of strong sunlight,
reflections, extreme light contrasts, or if the
driver is wearing sunglasses or is not looking
straight ahead.
Related information
Distance Alert* (p. 296)
Head-up display* (p. 142) Activating/deactivating Distance
Alert
35
Distance Alert can be turned off.
On/OffPress the Distance Alert but-
ton in the center display's
Function view.
GREEN button indicator light - Distance Alert
is on.
GRAY button indicator light - Distance Alert
is off.
Distance Alert is automatically activated each
time the engine is started.
Related information
Distance Alert* (p. 296) Setting a time interval for Distance
Alert
36
The Distance Alert function can be set to differ-
ent time intervals.
Different time intervals to the
vehicle ahead can be selected
and are shown in the instru-
ment panel as 1–5 horizontal
bars. The more bars, the longer
the time interval. One bar rep-
resents an interval of
approx. 1 second to the vehicle ahead. 5 bars
represents approx. 3 seconds. The same symbol appears when the Adaptive
Cruise Control function is activated.
35
The Distance Alert function is only available in vehicles that can displ\
ay information on the windshield with a head-up display.
36 The Distance Alert function is only available in vehicles that can displ\
ay information on the windshield with a head-up display.
DRIVER SUPPORT
}}
* Option/accessory. 299Controls for setting a time interval.
Reduce the time interval
Increase the time interval
Distance indicator
– Press the (1) or (2) button to decrease or
increase the time interval.
>
The distance indicator (3) shows the cur-
rent time interval.
NOTE
The greater the vehicles' speed, the
greater the distance between them for a
set time interval.
Only use the time intervals permitted by
local traffic regulations.
The set time interval is also used by the
Adaptive Cruise Control and Pilot Assist
functions.
WARNING
Only use a time interval suitable for the
current traffic conditions.
The driver should be aware that short
time intervals give them limited time to
react and act to any unforeseen traffic
situation.
Related information
Distance Alert* (p. 296) Distance Alert limitations
37
Distance Alert functionality may be reduced in
certain situations. 37
The Distance Alert function is only available in vehicles that can displ\
ay information on the windshield with a head-up display.