Page 277 of 456

276 OperationEngine compartmentOther display messages
If the SmartKey or KEYLESS-GO*
start/stop button (
page 35) is not in po-
sition 2, the following message will appear:
FOR ENGINE OIL LEVEL
SWITCH IGNITION ON
Switch on the ignition (
page 34).
If you see the message:
PERF. SERV. ON TIME
If engine is at operating temperature,
wait 5 minutes before repeating check
procedure.
If engine is not at operating tempera-
ture yet, wait 30 minutes before re-
peating check procedure.If you see the message:
ENGINE OIL LEVEL
NOT WHEN ENGINE ON
Turn off the engine.
If the engine is at operating tempera-
ture, wait 5 minutes before checking
oil.
If the engine is not at operating temper-
ature yet, you must wait 30 minutes be-
fore checking oil.
If there is excess engine oil with the engine
at normal operating temperature, the fol-
lowing message will appear:
ENGINE OIL LEVEL
REDUCE OIL LEVEL
Have excess oil siphoned or drained
off. Contact an authorized
Mercedes-Benz Center.For more information on messages in the
multifunction display concerning engine
oil, see the “Practical hints” section
(
page 351).!Excess oil must be siphoned or drained
off. It could cause damage to the en-
gine and catalytic converter not cov-
ered by the Mercedes-Benz Limited
Warranty.iPerform the engine oil level check with
the dipstick (CL 500 and CL 55 AMG
only) if it cannot be completed with the
control system.
In this case we recommend that you
have the system checked at a
Mercedes-Benz Center.
Page 320 of 456

319 Operation
Vehicle care
We have selected car-care products and
compiled recommendations which are
specially matched to our vehicles and
which always reflect the latest technology.
You can obtain Mercedes-Benz approved
car-care products at an authorized
Mercedes-Benz Center.
Scratches, corrosive deposits, corrosion or
damage due to negligent or incorrect care
cannot always be removed or repaired with
the car-care products recommended here.
In such cases it is best to seek aid at an au-
thorized Mercedes-Benz Center.
The following topics deal with the cleaning
and care of your vehicle and give important
“how-to” information as well as references
to Mercedes-Benz approved car-care
products.Power washer Tar stains
Quickly remove tar stains before they dry
and become more difficult to remove. A tar
remover is recommended.
Paintwork, painted body components
Mercedes-Benz approved Paint Care
should be applied when water drops on the
paint surface do not “bead up”. This should
normally be done every 3 to 5 months, de-
pending on the climate and washing deter-
gent used.
Mercedes-Benz approved Paint Cleaner
should be applied if the paint surface
shows signs of embedded dirt (i.e. loss of
gloss).
Do not apply any of these products or wax
if your vehicle is parked in the sun or if the
hood is still hot.
!Follow the instructions provided by the
power washer manufacturer on main-
taining a distance between the vehicle
and the nozzle of the power washer.
Never use a round nozzle to
power-wash tires. The intense jet of
water can result in damage to the tire.
Always replace a damaged tire.
Always keep the jet of water moving
across the surface. Do not aim directly
at electrical parts, electrical connec-
tors, seals, or other rubber parts.iVehicles with KEYLESS-GO*:
If a door handle is hit by a strong jet of
water, and a SmartKey with
KEYLESS-GO* is in close proximity, i.e.
within approximately 3 ft. (approxi-
mately 1 m), the vehicle could be
inadvertently locked or unlocked.
!Affixing stickers, adhesive tape or sim-
ilar materials to painted body compo-
nents may damage the paintwork.
Page 321 of 456

320 OperationVehicle care
Use the appropriate MB-Touch-Up
Stick for quick and provisional repairs
of minor paint damage (i.e. chips from
stones, vehicle doors, etc.).
Engine cleaning
Prior to cleaning the engine compartment,
make sure to protect electrical compo-
nents and connectors from contact with
water and cleaning agents.
Corrosion protection, such as
MB Anticorrosion Wax, should be applied
to the engine compartment after every en-
gine cleaning. Before applying, all control
linkage bushings and joints should be lu-
bricated. The poly-V-belt and all pulleys
should be protected from any wax.
Vehicle washing
In the winter, thoroughly remove all traces
of road salt as soon as possible.
When washing the vehicle underbody, do
not forget to clean the inner sides of the
wheels.Hand-wash
Do not use hot water or wash your vehicle
in direct sunlight.
Only use a mild car wash detergent,
such as Mercedes-Benz approved Car
Shampoo.
Thoroughly spray the vehicle with a dif-
fused jet of water.
Direct only a very weak spray towards
the ventilation intake.
Use plenty of water and rinse the
sponge and chamois frequently.
Rinse with clean water and thoroughly
dry with a chamois.
Do not allow cleaning agents to dry on
the finish.
Automatic car wash
You can have your car washed in an auto-
matic car wash from the start. Automatic
car washes without brushes are prefera-
ble.
If the vehicle is very dirty, prewash it be-
fore running it through the automatic car
wash.
iVehicles with KEYLESS-GO*:
If a door handle is hit by a strong jet of
water, and a SmartKey with
KEYLESS-GO* is in close proximity, i.e.
within approximately 3 ft (approxi-
mately 1 m), the vehicle could be inad-
vertently locked or unlocked.
Page 324 of 456

323 Operation
Vehicle care
Cleaning the windows and the wiper
blades
Switch on the ignition (
page 34).
Turn combination switch to wiper
settingII (
page 54).
With wiper arms in vertical position,
switch off the ignition (
page 384).
Fold the wiper arms forward until they
snap into place.
Clean the wiper blade inserts with a
clean cloth and detergent solution.
Use a soft, clean cloth and a mild win-
dow cleaning solution on all outside
and inside glass surfaces.
An automotive glass cleaner is recom-
mended.
!The windshield wipers must be in a ver-
tical position before folding them away
from the windshield. They could other-
wise damage the hood.
Never open the hood when the wiper
arms are folded forward.
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.
!Fold the windshield wiper arms back
onto the windshield before turning the
SmartKey in the starter switch or
pressing the KEYLESS-GO* start/stop
button (vehicles with KEYLESS-GO*).
Hold on to the wiper when folding the
wiper arm back. If released, the force
of the impact from the tensioning
spring could crack the windshield.!To clean the window interior, do not
use a dry cloth, abrasives, solvents or
cleaners containing solvents. Do not
touch the inside of the front, rear or
side windows with hard objects such as
an ice scraper or ring. Doing so may
damage the windows.
Page 345 of 456
344 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
MOVE SELECTOR LEVER
TO PARK
You have tried to turn off the engine with
the KEYLESS-GO* start/stop button
(page 35) with the gear selector lever not
inP.
Place the gear selector lever in positionP.
Page 354 of 456

353 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
_
ENTRY POSITION
DO NOT DRIVE
Seat, exterior mirrors and steering wheel
have not yet moved to their preset driving
positions.
Wait until the seat, exterior mirrors and
steering wheel have moved to their driv-
ing positions.
The message will disappear.
Y
HOOD OPEN
You are driving with the hood open.
Close the hood (
page 274).
I
REMOVE KEY
You have forgotten to remove the
SmartKey.
Remove the SmartKey from the starter
switch.
REPLACE KEY
DRIVE TO WORKSHOP
The SmartKey is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
AUTOMATIC LIGHT ON
REMOVE KEY
SmartKey in starter switch position
1or2.
Remove the SmartKey from the starter
switch.
KEY
CHECK BATTERY
The battery in the SmartKey with
KEYLESS-GO* is discharged.
Replace the battery (
page 377).
KEY
NOT RECOGNIZED
SmartKey with KEYLESS-GO* is not rec-
ognized while the engine is running be-
cause
the SmartKey is not in the vehicle
there is strong radio-frequency inter-
ference
Stop the vehicle in a safe location as soon
as it is safe to do so.
Search for the SmartKey.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started again
after it has been stopped.
Page 355 of 456
354 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
F
KEY
NOT RECOGNIZED
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.
Change the position of the SmartKey with
KEYLESS-GO* in the vehicle.
Operate the vehicle with the SmartKey in
the starter switch if necessary.
KEY
STILL IN VEHICLE
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.
Take the SmartKey with KEYLESS-GO*
out of the vehicle.
KEYLESS-GO
DRIVE TO WORKSHOP
The KEYLESS-GO* system is malfunction-
ing.
Visit an authorized Mercedes-Benz
Center as soon as possible.
.
3RD BRAKE LIGHT
CHECK LIGHT
The high mounted brake lamp is malfunc-
tioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
STOP LAMP
VISIT WORKSHOP
Brake lamp illumination is delayed or
lamp is permanently on.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 359 of 456

358 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
.
TURN OFF LIGHTS
You have removed the SmartKey from the
starter switch and opened the driver’s
door or removed the SmartKey with
KEYLESS-GO* from the vehicle and left
the headlamps on.
Turn the exterior lamp switch to M
(page 52).
FRONT TURN SIGNAL, L
CHECK LIGHT
The left front turn signal lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
FRONT TURN SIGNAL, R
CHECK LIGHT
The right front turn signal lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
REAR TURN SIGNAL, L
SUBSTITUTE LAMP ON
The left rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.
Replace the bulb as soon as possible.
REAR TURN SIGNAL, R
SUBSTITUTE LAMP ON
The right rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.
Replace the bulb as soon as possible.
MIRROR TURN SIG., L
CHECK LIGHT
The left turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz
Center as soon as possible.
MIRROR TURN SIG., R
CHECK LIGHT
The right turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz
Center as soon as possible.