Range; System Sensors - Mercedes-Benz 2009 M-Class Operator's Manual

The Parktronic system also deactivates when
you shift the automatic transmission into
park position P or engage the parking brake.
The Parktronic system monitors the
surroundings of your vehicle with six sensors
in the front bumper and four sensors in the
rear bumper.
Sensors in the front bumper
1
To function properly, the sensors must be free
of dirt, ice, snow and slush. Clean the sensors
regularly, being careful not to scratch or
damage the sensors, see "Cleaning the
Parktronic system sensors" ( Y
G Warning!
The Parktronic is a supplemental system. It
is not intended to, nor does it replace, the
need for extreme care. The responsibility
during parking and other critical maneuvers
always remains with the driver.
G Warning!
Make sure no persons or animals are in or
near the area in which you are parking/
maneuvering. Otherwise, they could be
injured.
! Special attention must be paid to objects
with smooth surfaces or low silhouettes
(e.g. trailer couplings, painted posts,
elevated crossbars or road curbs). Such
objects may not be detected by the system
and can damage the vehicle.
During parking maneuvers, pay special
attention to objects located above or below
the height of the sensors (e.g. street curbs,
painted posts, or trailer hitches etc.). The
Parktronic system will not detect such
objects at close range and damage to your
vehicle or the object may result.
! Ultrasonic signals from outside sources
page 293).
(e.g. truck air brakes, car wash, or
jackhammers) may impair the operation of
the Parktronic system.
Controls in detail
Driving systems
Range of the sensors
Front sensors
Center approx. 40 in (100 cm)
Corners approx. 24 in (60 cm)
Z
175