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Driver assistance systems
Traffic Jam Assist is designed only for use on
mot
or
w
ays and wide roads. Therefore, never
use it in city traffic.
Switching Traffic Jam Assist on and off
If Lane Assist is on, ››› page 217 Traffic Jam
Assist is switched on and off in the infotain-
ment system using the
button and the
S
ETUP
and
Driv
er a
s
sistance
function buttons
›
›
›
page 27.
It is activated by switching on Lane Assist
and the lane centring guide in the infotain-
ment system. If the lane centring guide is not
active, the Traffic Jam Assist system is not ac-
tive
Traffic Jam Assist may be disconnected using
the button for driver assistance systems to-
gether with Lane Assist ›››
page 31.
Technical requirements for using Traffic Jam
Assist
●
Lane Assist must be activated ››› page 217,
Lane Assist system*.
●
Adaptive Cruise Control (ACC) must be con-
nected and active ››› page 201.
●
The selector lever must be in the D/S posi-
tion or in the Tiptronic selection track.
●
The speed must be below 60 km/h
(38 mph).
●
The lane centring guide must be active
››› page 219.
Traffic Jam Assist is not active (the Lane As-
sist control light turns yellow)
●
If any of the conditions mentioned on
page 221, Technical requirements for using
Traffic Jam Assist are no longer met.
●
If any of the conditions required for opera-
tion of the Lane Assist are not met
››› page 217.
●
If any of the conditions necessary for the
adaptive cruise control (ACC) to work are no
longer fulfilled ››› page 201.
Situations in which Traffic Jam Assist must
be switched off
Due to the limitations of the system, Traffic
Jam Assist must always be switched off in the
following situations:
●
When more attention is required by the
driver.
●
When driving in a very sporty style.
●
In adverse weather conditions, e.g. in case
of snow or heavy rain.
●
When driving on roads in poor condition.
●
In sections with roadworks.
●
In city journeys.
WARNING
The smart technology incorporated into Traf-
fic Jam Ass
ist cannot defy the laws of phys-
ics; it only works within the limits of the sys-
tem. Accidents and severe injury may occur if
Traffic
Jam Assist is used negligently or invol-
untarily. The system is not a replacement for
driver awareness.
●
Adapt your speed and safe distance to the
vehicle in front of you at all times to suit the
visibility, weather, road and traffic condi-
tions.
●
Do not use Traffic Jam Assist in city jour-
neys.
●
Do not use Traffic Jam Assist if there is poor
visibility, for example, in case of snow, ice,
rain or loose gravel, or on steep or slippery
sections or flooded roads.
●
Do not use Traffic Jam Assist offroad or on
roads where the surface is not firm. Traffic
Jam Assist has been designed for use on
paved roads only.
●
Traffic Jam Assist does not react to people
or animals or vehicles crossing your path or
that approach you head-on down the same
lane.
●
If Traffic Jam Assist does not reduce speed
sufficiently, brake the vehicle immediately by
applying the pedal.
●
If the vehicle continues to move when you
wish it to stop after a driver intervention
prompt, brake the vehicle by applying the
pedal.
●
If driver intervention is requested on the
dash panel display, immediately resume con-
trol of the vehicle.
●
Keep your hands on the wheel at all times
to be ready to intervene in the steering at any
»
221
Technical dataAdviceOperationEmergenciesSafety
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