2005 MERCEDES-BENZ ML500 parking sensors

156 Controls in detailDriving systemsParktronic* system (Parking assist)
The Parktronic system is an electronic and
designed to assist the driver during park-
ing maneuvers. It visually and audibly indi-
cates the relative distance between the
vehicle and an obstacle.
The Parktronic system is automatically
activated when you switch on the ignition.
The Parktronic system deactivates at
speeds over approximately 10 mph
(15 km / h). At lower speeds the Parktronic
system turns on again.The Parktronic system monitors the sur-
roundings of your vehicle with six sensors
in the front bumper and four sensors in the
rear bumper.
1Sensors located in front bumperWarning!
G
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 rests with the driver.
Special attention must be paid to objects
with smooth surfaces or low silhouettes
(e.g. trailer couplings, painted posts, or road
curbs). Such objects may not be detected by
the system and can damage the vehicle.
The operational function of the Parktronic
system can be affected by dirty sensors, es-
pecially at times of snow and ice. See
“Cleaning the Parktronic system sensors”
(page 243).
Interference caused by other ultrasonic sig-
nals (e.g. working jackhammers, car wash,
or the air brakes of trucks) can cause the
system to send erratic indications, and
should be taken into consideration.
Warning!
G
Make sure that no persons or animals are in
the area in which you are maneuvering. You
could otherwise injure them.

157 Controls in detail
Driving systems
Range of the sensors
To function properly, the sensors must be
free of dirt, ice, snow and slush. Clean the
sensors regularly, being careful not to
scratch or damaging the sensors.Front sensors
Rear sensorsMinimum distance
When an obstacle is located in this area, all
warning displays will light up and a warning
tone will sound. If the vehicle moves closer
than the minimum distance to an object,
the distance may no longer be displayed.
Center
approx. 39.4 in (100 cm)
Corners
approx. 23.6 in (60 cm)
Center
approx. 47.2 in (120 cm)
Corners
approx. 31.5 in (80 cm)
!During parking maneuvers, pay special
attention to objects located above or
below the height of the sensors (e.g.
planters or trailer hitches). The Park-
tronic system will not detect such ob-
jects at close range and damage to
your vehicle or the object may result.
Ultrasonic signals from outside sourc-
es (e.g. truck air brakes or jackham-
mers) may impair the operation of the
Parktronic system.
Center
approx. 8 in (20 cm)
Corners
approx. 6 in (15 cm)

342 IndexOpening and closing
Side windows 146
Operating
Garage door opener 188
Integrated remote control 188
Radio transmitters 216
Vehicle outside the USA or
Canada 13
Operating safety 17
Operator’s Manual 10
Ornamental moldings 242
Outside temperature indicator 119
Overdue service 238
Overhead control panel 29
P
Paintwork 241
Panic alarm 75
Panic button on remote control 75
Parking 200
Parking and locking 54
Parking brake 48, 54
Engaging 54
Releasing 48
Parking lamps
Switching on 107Parking, standing lamp
Replacing bulbs 274
Parktronic (Parking assist)* 326
Parktronic system*
Switching off 159
Switching on 159
Parktronic* 156
Cleaning system sensor 243
Range of the sensors 157
Sensor cover 243
Switching off 159
Switching on 159
Warning indicators 158
Partition net* 162
Engaging 162
Removing 164
Tightening 163
Parts see Parts service
Parts service 302
Passenger compartment 215
Interior lighting 114
Passenger footwell
Fuse box in 299
Passenger safety see Occupant safety
Pedals 197Plastic and rubber parts
Cleaning 245
Poly-V-belt drive 326
Layout 305
Positions (Memory function*)
Recalling from memory 106
Storing into memory 106
Power assistance 197
Power seat*
Adjusting backrest tilt 39
Adjusting head restraint height 39
Adjusting seat cushion tilt 39
Adjusting seat height 39
Seat fore and aft adjustment 38
Power tilt/sliding sunroof* 150
Closing 271
Opening 271
Power train 326
Power washer 241
Power windows
Blocking of rear door window
operation 74
Side windows 146
Synchronizing 148