2006 MERCEDES-BENZ CLS500 sensor

346 OperationVehicle careHeadlamps, tail lamps, side markers,
turn signal lenses
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Shampoo,
with plenty of water.Cleaning the Distronic* system sensor
cover
1Distronic system sensor cover

Switch off the ignition (
page 60).

Use a mild car wash detergent, such as
Mercedes-Benz approved Car Sham-
poo, with plenty of water and a
non-scratching cloth to clean sensor
cover1.

Restart the engine after cleaning sen-
sor cover1.
!Only use window cleaning solutions
that are suitable for plastic lamp lens-
es. Window cleaning solutions which
are not suitable may damage the plas-
tic lamp lenses of the headlamps.
Therefore, do not use abrasives, sol-
vents or cleaners that contain solvents.
Never apply strong force and only use a
soft, non-scratching cloth when clean-
ing the lenses. Do not attempt to wipe
dirty lenses with a dry cloth or sponge.
Otherwise you may scratch or damage
the lens surface.
!To prevent scratches or damage, never
apply strong force and only use a soft,
non-scratching cloth when cleaning the
sensor cover1. Do not attempt to
wipe dirty sensors with a dry cloth or
sponge.

347 Operation
Vehicle care
Cleaning the Parktronic system*
sensors
1Parktronic system* sensors in the front
bumper
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Sham-
poo, with plenty of water and a soft,
non-scratching cloth to clean
sensors1 on the bumpers.Cleaning the windows and the wiper
blades

Switch on the ignition (
page 36).

Turn combination switch to wiper
settingII (
page 54).

With wiper arms in vertical position,
switch off the ignition (
page 60).
!Do not apply strong pressure to the
sensor covers. Applying strong pres-
sure may damage the sensor covers.
Follow the instructions provided by the
power washer manufacturer on main-
taining a distance between the vehicle
and the nozzle of the power washer.!To prevent scratches, never apply
strong force and only use a soft,
non-scratching cloth when cleaning the
sensors. Do not attempt to wipe dirty
sensors with a dry cloth or sponge.
!The windshield wipers must be in a ver-
tical position before folding them away
from the windshield. They could other-
wise damage the hood.Warning!
G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch (vehi-
cles with KEYLESS-GO*: Make sure the
vehicle’s on-board electronics have
status0) before cleaning the windshield the
windshield and/or the wiper blades. Other-
wise, the wiper motor could suddenly turn
on and cause injury.


366 Practical hintsWhat to do if …Display message
Possible cause/consequence
Possible solution
Distronic
External interference
Reactivate
The Distronic* is switched off and is
temporarily unavailable.

Try activating the Distronic* again later.
Drive to workshop
The Distronic* is malfunctioning or
the display is malfunctioning.

Visit an authorized Mercedes-Benz Center as
soon as possible.
Currently unavailable
See Operator’s Manual
Distronic* is switched off if:

the Distronic* cover in the area
of the radiator grille is dirty


the functionality is impaired by
heavy rain or thick fog

If necessary, clean the Distronic* cover in the
area of the radiator grille (
page 346).

Restart the vehicle.
or
Distronic* becomes operational again without the
engine being restarted when:


dirt on the grille falls off while driving (e.g.
slush or snow)


the system recognizes full sensor availability
(due to lessening rain or the road surface dry-
ing)


the message in the multifunction display dis-
appears


the speed last stored flashes in the display for
5 seconds.
You can operate Distronic* as usual again.

367 Practical hints
What to do if …
Warning!
G
Distronic cannot take weather conditions
into account. Switch off Distronic or do not
turn it on if the sensor is dirty or visibility is
diminished as a result of snow, rain or fog.
The distance control may be impaired even
before the system is able to detect a dirty
sensor. The messageDistronic
Currently unavailable
See Operator’s Manualwill be displayed in the multifunction display
and Distronic will be turned off.

371 Practical hints
What to do if …
Display messages
Possible cause/consequence
Possible solution
Tire pressure

displayed only
after driving a
few minutes
The tire inflation pressure is being
checked.

Drive the vehicle for a few minutes.
Tire pres. monitor
currently unavailable
The Advanced TPMS* is unable to
monitor the tire pressure due to

a nearby radio interference
source.


excessive wheel sensor temper-
atures.

As soon as the causes for the malfunction are
no longer present, the Advanced TPMS* auto-
matically becomes active again after a few
minutes driving.
Tire pres. monitor
inoperative
The Advanced TPMS* is
malfunctioning.

Have the Advanced TPMS* checked by an au-
thorized Mercedes-Benz Center.

372 Practical hintsWhat to do if …Display messages
Possible cause/consequence
Possible solution
Tire pres. monitor
inoperative
No wheel sensors
There are wheels without wheel sen-
sors mounted (e.g. winter tires).

Have the Advanced TPMS* checked by an au-
thorized Mercedes-Benz Center.

Have the wheel sensors installed by an
authorized Mercedes-Benz Center.
Tire pres. monitor
Wheel sensor missing


One or more sensors malfunc-
tion (e.g. battery is empty).


One or more wheels without
wheel sensors mounted (e.g.
spare tire).
The tire inflation pressure for the re-
spective tire is not shown in the mul-
tifunction display.

Have the Advanced TPMS* checked by an au-
thorized Mercedes-Benz Center.

Have the wheel sensors installed by an
authorized Mercedes-Benz Center.

383 Practical hints
What to do if …
When the
Engine oil - Visit workshop

message appears while the engine is run-
ning and at operating temperature, the en-
gine oil level has dropped to approximately
the minimum level.
When this occurs, the warning will first
come on intermittently and then stay on if
the oil level drops further.If no oil leaks are noted, continue to drive
to the nearest service station where the
engine oil should be topped to the required
level with an approved oil specified in the
Factory Approved Service Products pam-
phlet.
Display symbol
Display messages
Possible cause/consequence
Possible solution
:
Engine oil level
Visit workshop
The engine oil has dropped to a critical
level.

Check the engine oil level
(page 295) and add oil as required
(page 296).

If you must add engine oil frequently,
have the engine checked for possible
leaks.
Change engine oil
Visit workshop
It may be that there is water in the engine
oil.

Have the engine oil checked.
Oil sensor malfunction
Visit workshop
The measuring system is malfunctioning.

Have the measuring system checked
by an authorized Mercedes-Benz
Center.!The engine oil level warnings should
not be ignored. Extended driving with
the symbol displayed could result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.

389 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
.
License plate lamp,
right

The right license plate lamp is malfunc-
tioning.

Replace the bulb as soon as possible.
Light sensor
Drive to workshop
The light sensor is malfunctioning. The
headlamps switch on automatically.

In the control system, set lamp opera-
tion to manual mode (
page 164).

Switch on headlamps using the exteri-
or lamp switch.
Low beam,
left
The left low beam lamp is malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:

Visit an authorized Mercedes-Benz
Center as soon as possible.
Low beam,
right
The right low beam lamp is malfunction-
ing.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:

Visit an authorized Mercedes-Benz
Center as soon as possible.