Mercedes-benz 2013 C Class Coupe User Manual download pdf (Page 200)

ATTENTION ASSIST

Important safety notes

ATTENTION ASSIST is only an aid. It cannot

always detect fatigue or lapses in concentra-

tion until too late or not at all. The system is

not a substitute for a well-rested and atten-

tive driver.

ATTENTION ASSIST helps you during long,

monotonous journeys such as on motorways

and trunk roads. It is active in the 80 km/h

to 180 km/h range.

If ATTENTION ASSIST detects typical indica-

tors of fatigue or increasing lapses in con-

centration on the part of the driver, it sug-

gests taking a break.

ATTENTION ASSIST assesses your level of

fatigue or lapses in concentration by taking

the following criteria into account:

R

your personal driving style, e.g. steering

characteristics

R

journey-related parameters, e.g. time of

day, length of journey

The functionality of ATTENTION ASSIST is

restricted, and warnings may be delayed or

not occur at all:

R

if the road condition is poor, e.g. if the sur-

face is uneven or if there are potholes

R

if there is a strong side wind

R

if you have adopted a sporty driving style

with high cornering speeds or high rates of

acceleration

R

if you are predominantly driving slower

than 80 km/h or faster than 180 km/h

R

if you are currently using COMAND Online

or making a telephone call with COMAND

Online

R

if the time has been set incorrectly

R

in active driving situations, such as when

you change lanes or change your speed

Warning and display messages in the

multifunction display

X

Activate ATTENTION ASSIST using the on-

board computer (Y page 229).

If ATTENTION ASSIST is active, you will be

warned no sooner than 20 minutes after your

journey has begun. You then hear an inter-

mittent warning tone twice and the Atten‐

tion Assist: Drowsiness detected mes-

sage appears in the multifunction display.

X

If necessary, take a break.

X

Press the a button to confirm the mes-

sage.

On long journeys, take regular breaks in good

time to allow yourself to rest properly. If you

do not take a break, you will be warned again

after 15 minutes at the earliest. This will only

happen if ATTENTION ASSIST still detects

typical indicators of fatigue or increasing lap-

ses in concentration.

ATTENTION ASSIST is reset and starts

assessing your tiredness again when you con-

tinue your journey if:

R

you switch off the engine

R

you take off your seat belt and open the

driver's door, e.g. for a change of drivers or

to take a break

The assistance graphic shows the é sym-

bol when ATTENTION ASSIST is deactivated

(Y page 228).

Speed Limit Assist

General notes

Speed Limit Assist shows you detected speed

limits in the multifunction display. Data from

the navigation system is also used for this

purpose. If a traffic sign indicating a speed

limit or the end of a speed limit is detected,

it is shown in the multifunction display. If

Speed Limit Assist does not detect any traffic

signs, the speed limit from the digital road

map is taken and shown in the display.

198

Driving systems

Driving and parking

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