trunk MERCEDES-BENZ B-CLASS HATCHBACK 2011 Owners Manual

apply to objects that are at the same level
as the ball coupling.
X Reverse carefully, making sure that trailer
drawbar marke rassistant =points
approximately in the direction of trailer
drawbar ?.
X Reverse carefully until trailer drawbar ?
touches red guide line ;.
X Couple up the trailer (Y page 181).ATTENTION ASSIST
Introduction 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.
Important safety notes G
WARNING
ATTENTION ASSIST is only an aid and may
detect your tiredness or lapses in concentra-
tion too late or not at all. It is not asubstitute
for a well rested and attentive driver.
Fatigue may cause you to recognise hazard-
ous situations too late, misjudge a situation
or react slower. For this reason, make sure
you feel rested before you begin driving and
during your journey. Always take breaks in
good time and regularly, especially during
long journeys. Otherwise, you may fail to rec-
ognise dangers in time, cause an acciden tand
injure yoursel fand others. ATTENTIO
NASSIST 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 sid ewind
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 Example: vehicles with automatic transmission
X
Activate ATTENTION ASSIST using the on-
board computer (Y page 199).
Symbol :appears in the multifunction
display.
If ATTENTION ASSIST is active, it will not
warn you until at least 20 minutes after
your journey has begun. You the nhear an
intermittent warning tonet wice and the
Attention Assist: Drowsiness Driving systems
175Driving and parking Z

Use the Technical Specification
ISO/TS 21609
20
when retrofitting RF (radio
frequency) transmitters. Legal provisions for
fittings must be observed.
If your vehicle has fittings for two-way radio
equipment, use the power supply or aerial
connections intended for use with the basic
wiring. Be sure to observe the manufacturer's
additional instructions when installing.
Deviations with respect to wavebands, maxi-
mum transmission outputs or aerial positions
must be approved by Mercedes-Benz.
The maximum transmission output (PEAK) at
the base of the aerial must not exceed the
following values: Waveband Maximum
transmission
output
Short wave (f < 54 MHz) 100 W
4 m waveband 30 W
2 m waveband 50 W
Trunked radio/Tetra 35 W
70 cm waveband 35 W
GSM/DCS/PCS
850/900/1800/1900 10 W
UMTS/LTE 10 W
The following can be used in the vehicle with-
out restrictions:
R
RF transmitters with amaximum transmis-
sion output of up to 100 mW
R mobile phones (GSM/DCS/PCS/UMTS/
LTE)
There is no restriction for aerial positions in
the outer area of the vehicle for the following
wavebands:
R trunked radio/Tetra
R 70 cm waveband R
GSM/DCS/PCS
R UMTS/LTE Vehicle identification plates
Vehicle identification plate with vehi-
cle identification number (VIN) and
paint code number
X
Open the fron tright-hand door.
You will see vehicle identification plate :. Example: vehicle identification plate
:
Vehicle identification plate
; Vehicle manufacturer (Daimler AG)
= EU general operating permit number (only
for certain countries)
? Vehicle identification number (VIN)
A Maximum permissible gross weight (kg)
B Maximum permissible gross weight of
vehicle/trailer combination (kg)
C Maximum permissible front axle load (kg)
20 ISO/TS 21609 – Technical Specification for Road Vehicles – EMC guidelines for installation of aftermarket
radio frequency transmitting equipment. 310
Vehicle identification platesTechnical data