2002 MERCEDES-BENZ ML320 sensor

234 Parking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
All yellow and one or both red segments light up.
Additionally, there is an acoustic warning lasting
approximately 3 seconds.
The obstacle may not be recognized if outside the
shaded sensor field, and no longer be indicated when
approaching it any closer (warning indicators go out).
Parktronic malfunction
All red segments of the warning indicators light up, and
a warning sounds for 3 seconds, if Parktronic does not
function properly.
A dirty sensor or other ultrasonic signals could be the
reason. See page 301 for instructions on cleaning the
sensors in the bumpers.
After cleaning the sensors, turn electronic key in
steering lock to position 2. If a malfunction continues to
be displayed, have the system checked at your
authorized Mercedes-Benz Center.Parktronic switch
The switch is located on the center console.
1Parktronic switched off
2Parktronic switched on
3Indicator lamp – comes on when Parktronic is
switched off
The parktronic system is switched on again when
turning the electronic key in steering lock position 2.3

297 Contents - Car care
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar careIndex
Vehicle careCleaning and care of the vehicle .298
Power washer ..............................299
Tar stains .....................................299
Paintwork, painted body
components .................................299
Engine cleaning ..........................300
Vehicle washing .........................300
Ornamental moldings ................300
Headlamps, taillamps,
turn signal lenses ......................300
Cleaning the parktronic
system sensors ........................... 301Window cleaning ....................... 301
Wiper blades .............................. 301
Light alloy wheels ..................... 302
Instrument cluster ..................... 302
Steering wheel and
gear selector lever ..................... 302
Cup holder .................................. 302
Seat belts ..................................... 302
Headliner .................................... 302
Upholstery .................................. 303
Hard plastic trim items ............. 303
Plastic and rubber parts ........... 303

301 Cleaning and care of the vehicle
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar careIndex Cleaning the parktronic system sensors
Use a mild car wash detergent, such as Mercedes-Benz
approved Car Shampoo, with plenty of water.
When using a steam cleaner or power washer, aim
nozzle only briefly from a minimum distance of 4 in.
(10 cm) at sensors (1).
To prevent scratches, never apply strong force and use
only a soft, non-scratchy cloth when cleaning the
sensors. Do not attempt to wipe dirty sensors with a dry
cloth or sponge.Window cleaning
Use a window cleaning solution on all glass surfaces. An
automotive glass cleaner is recommended.
Note:
For safety reasons, switch off wipers and remove key
from steering lock before cleaning the windshield,
otherwise the wiper motor can suddenly turn on and
cause injury.
Wiper blades
Clean the wiper blade inserts with a clean cloth and
detergent solution.
Note:
For safety reasons, switch off wipers and remove key
from steering lock before cleaning the wiper blades,
otherwise the wiper motor can suddenly turn on and
cause injury.
1
1
1P54.65-2366-26

327 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex Fuel reserve warning ....................................................242
Fuels, coolants, lubricants etc. - Capacities .............. 314
Fuse boxes ....................................................................... 251
Fuses, electrical ............................................................. 250
GGarage door opener ....................................................... 158
Gasoline
Additives .................................................................... 318
Fuel requirements .................................................... 317
Premium unleaded ................................................... 317
General notes on the central locking system .............. 25
Glass breakage sensor .................................................... 37
Glove box ......................................................................... 133HHazard warning flasher switch ................................... 104
Head restraints
Adjusting ...................................................................... 45
Front ............................................................................. 45
Front, removal ............................................................. 45
Rear ............................................................................. 143
Removal ............................................................... 45, 143Headlamp aim, adjusting ............................................. 290
Headlamp assembly
BiXenon ..................................................................... 284
Halogen ...................................................................... 283
Headlamp cleaning system ........................................... 104
Headlamp mode ................................................................99
Headlights ......................................................................... 97
Heated seats ......................................................................46
High beam
See Exterior lamp switch ...........................................97
Hood ................................................................................ 253
Hooks ............................................................................... 151
IIdentification labels ...................................................... 307
Illuminated vanity mirrors ........................................... 131
Indicator lamps in the instrument cluster ...................84
Infant and child restraint system
Installation ................................................................... 70
Infant and child restraint systems ................................68
Child seat mounts - LATCH type ..............................72
Inflating the space-saver tire ....................................... 271
Information call
See Tele Aid ............................................................... 166

330 Index
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
OObtaining replacement keys .......................................... 25
Odometer/Trip odometer ................................................ 86
Off-Road driving ............................................................. 202
On-board diagnostic system .........................................240
Operator’s manual ............................................................. 8
Outside temperature indicator ...................................... 88
Overhead control panel ................................................... 21PPanic button ...................................................................... 28
Parking ............................................................................ 195
Parking assist (Parktronic) .......................................... 230
Malfunction ............................................................... 234
Parktronic switch ......................................................234
Sensors ....................................................................... 231
Warning indicators ................................................... 232
Parking brake ........................137, 191, 193, 195, 241, 267
Partition net .................................................................... 151
Poly-V-belt
Layout .........................................................................308
Power assistance ............................................................ 193
Power seats, front ............................................................ 41Memory function .........................................................43
Recalling positions from memory ............................ 44
Storing positions into memory ................................. 43
Power windows ............................................................... 122
Blocking of rear door windows ............................... 124
Express opening and closing .................................. 123
Synchronizing power windows ............................... 124
Problems with your vehicle ............................................ 15
Product information .......................................................... 7
RRadio transmitters ......................................................... 164
Rain sensor
See windshield wiper/washer switch .................... 105
Rear passenger compartment
adjustable air outlets ................................................120
Rear passenger compartment
climate control ........................................................... 119
Rear quarter windows ................................................... 125
Rear seat bench .............................................................. 139
Easy entry/exit feature ............................................ 142
Head restraints .......................................................... 143