All-Wheel Drive (4Matic); Parktronic System; System Sensors - Mercedes-Benz 2009 CL-Class Operator's Manual

Controls in detail
Driving systems

All-wheel drive (4MATIC)

G Warning!
If a drive wheel is spinning due to
insufficient traction:
While driving off, apply as little throttle as
R
possible.
While driving, ease up on the accelerator
R
pedal.
Adapt your speed and driving style to the
R
prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid.
The 4MATIC cannot prevent accidents
resulting from excessive speed.
! Do not tow with one axle raised. Doing so
could damage the transfer case, which is
not covered by the Mercedes-Benz Limited
Warranty. All wheels must be on or off the
ground. Observe instructions for towing the
vehicle with all wheels on the ground.
i
In winter operation, the maximum
effectiveness of the 4MATIC is only
achieved with winter tires ( Y
snow chains as required.
366

Parktronic system

The Parktronic system is an electronic
parking aid with ultrasonic sensors designed
to assist the driver during parking maneuvers.
It indicates the relative distance between the
vehicle and an obstacle visually and audibly.
The Parktronic system is activated
automatically when you
switch on the ignition
R
and
release the electronic parking brake
R
or
start the engine
R
and
shift the automatic transmission into drive
R
position D, reverse gear R, or neutral
position N
The Parktronic system deactivates at speeds
above approximately 11 mph (18 km/h). At
lower speeds, the Parktronic system switches
on again.
The Parktronic system also deactivates when
you shift the automatic transmission into
park position P or engage the electronic
page 452) or
parking brake and turn off the engine.
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 (Only visible
1
without DISTRONIC Plus)
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.
page 465).