Mercedes-Benz B-Class 2011 Owner's Manual page 169

Driving systems
166
Problems with PARKTRONIC
Problem
Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds,
and the indicator lamp
in the PARKTRONIC
button lights up.
Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds.
Active Parking Assist
General notes
Active Parking Assist is an electronic parking
aid with ultrasound. Ultrasound is used to
measure the road on both sides of the vehicle.
A suitable parking space is indicated by the
parking symbol. Active steering intervention
can assist you during parking.
You may also use PARKTRONIC
( page 163). When PARKTRONIC is switched
Y
off, Active Parking Assist is also unavailable.
Use Active Parking Assist for parking spaces:
that are parallel to the direction of travel
R
that are on straight roads, not bends
R
that are on the same level as the road, e.g.
R
not on the pavement
Possible causes/consequences and M Solutions
PARKTRONIC has malfunctioned and has switched off.
If problems persist, have PARKTRONIC checked at a qualified
X
specialist workshop.
The PARKTRONIC sensors are dirty or there is interference.
Clean the PARKTRONIC sensors (
X
Switch the ignition back on.
X
The problem may be caused by an external source of radio or
ultrasound waves.
See if PARKTRONIC functions in a different location.
X
page 270).
Y
Important safety notes
G WARNING
Active Parking Assist is merely an aid and may
sometimes recommend parking spaces that
are not suitable for parking. For example,
these might be spaces where parking is pro-
hibited, driveways, unsuitable surfaces, etc.
Active Parking Assist measures the parking
space as you drive past it. Any later changes
to the parking space are not taken into
account. For instance, this may be the case
when the vehicle parked in front of or behind
the space changes its position or when an
obstacle is moved into the parking space.
Active Parking Assist does not relieve you of
the responsibility of paying attention. If you
rely solely on Active Parking Assist, you could
cause an accident and injure yourself and oth-
ers.