Page 276 of 384
276 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
F
CHIP CARD
CHECK BATTERY
KEYLESS-GO*card batteries are dis-
charged.
Change the batteries (
page 299).
CHIP CARD
NOT RECOGNIZED!
KEYLESS-GO*card is not recognized while
the engine is running because
the card is not in the vehicle
there is strong radio-frequency interfer-
ence
Stop the vehicle as soon as it is safe
to do so.
Search for the card.
Otherwise the vehicle cannot be central-
ly locked nor can the engine be started
again after it has been stopped.
KEYLESS-GO*card is momentarily not rec-
ognized.
Change the position of the card in
the vehicle.
Operate the vehicle with the key in
the starter switch if necessary.
CHIP CARD
DETECTED IN VEHICLE
KEYLESS-GO*card left in the vehicle was
recognized while locking the vehicle from
the outside.
Take the card out of the vehicle.
CHIP CARD
VISIT WORKSHOP!
The KEYLESS-GO* system is malfunction-
ing.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 277 of 384
277 Practical hints
What to do if …?
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F
CHIP CARD
DO NOT FORGET
This display appears (for a maximum of
60 seconds) if the driver’s door is opened
with the engine shut off and no key in the
starter switch.
Message is only a reminder.
Insert key in the starter switch.
Take the KEYLESS-GO*card with you
when leaving the vehicle.
B
COOLANT
CHECK LEVEL!
The coolant level is too low.
Add coolant (
page 242).
If you have to add coolant frequently,
have the cooling system checked by
an authorized Mercedes-Benz Cen-
ter.
Warning!
G
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. You can be seriously burned.
!Do not ignore the low engine coolant
level warning. Extended driving with
the message and symbol displayed
may cause serious engine damage not
covered by the Mercedes-Benz Limited
Warranty.
Do not drive without a sufficient
amount of coolant in the cooling sys-
tem. The engine will overheat, causing
major engine damage.
Page 278 of 384
278 Practical hintsWhat to do if …?
During severe operating conditions and
stop-and-go city traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Display
Possible cause
Possible solution
Ï
COOLANT
STOP, ENGINE OFF!
The coolant is too hot.
Stop the vehicle and turn off the en-
gine.
Only start the engine again after the
message disappears. You could oth-
erwise damage the engine.
Warning!
G
Driving when your engine is badly overheat-
ed can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously burned.
Steam from an overheated engine can cause
serious burns and can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until it
cools down.
!The engine should not be operated with
the coolant temperature above 248°F
(120°C). Doing so may cause serious
engine damage which is not covered by
the Mercedes-Benz Limited Warranty.
Page 279 of 384
279 Practical hints
What to do if …?
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Ï
COOLANT
STOP, ENGINE OFF!
The poly-V-belt could be broken.
Stop immediately and check the
poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise
the engine will overheat due to an in-
operative water pump which may re-
sult in damage to the engine. Notify
an authorized Mercedes-Benz
Center.
If it is intact:
Do not continue to drive the vehicle
with this message displayed. Doing
so could result in serious engine
damage that is not covered by the
Mercedes-Benz Limited Warranty.
Ï
COOLANT
VISIT WORKSHOP!
The cooling fan for the coolant is malfunc-
tioning.
Observe the coolant temperature
display.
Have the fan replaced as soon as
possible.
Page 280 of 384
280 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
G
DISPLAY MALFUNCTION
VISIT WORKSHOP!
The instrument cluster display is malfunc-
tioning.
Continue driving with added caution.
Visit an authorized Mercedes-Benz
Center as soon as possible.
DISTRONIC
EXTERNAL INTERFERENCE
REACTIVATE!
Distronic* is switched off and is temporari-
ly unavailable.
Try activating Distronic* again later.
CLEAN SENSOR!
SEE OPERATOR'S MAN.
Distronic* is switched off because the Dis-
tronic* cover in the radiator grille is dirty.
Clean the Distronic* cover in the ra-
diator grille (
page 259).
Restart the vehicle.
VISIT WORKSHOP!
Distronic* is malfunctioning or the display
is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
J
DOOR OPEN!
You are attempting to drive with one or
more doors open.
Close the doors.
P
SHIFT
TO P
You have turned off the engine with the
KEYLESS-GO* start/stop button and
opened the driver’s door.
Place the selector lever in positionP.
?
VISIT WORKSHOP!
There may be a malfunction in the:
Fuel injection system
Ignition system
Exhaust system
Fuel system
Visit an authorized Mercedes-Benz
Center as soon as possible.
Page 281 of 384
281 Practical hints
What to do if …?
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:
ENGINE OIL LEVEL
STOP, ENGINE OFF!
There is no oil in the engine. There is a dan-
ger of engine damage.
Carefully bring the vehicle to a halt
as soon as possible.
Turn off the engine.
Add engine oil.
ENGINE OIL LEVEL
REDUCE OIL LEVEL
You have added too much engine oil. There
is a risk of damaging the engine or the cat-
alytic converter.
Have oil siphoned. Observe all legal
requirements with respect to its dis-
posal.
ENGINE OIL
VISIT WORKSHOP!
The engine oil has dropped to a critical lev-
el.
Check the engine oil level
(page 238) and add oil as required.
If you must add engine oil frequently,
have the engine checked for possible
leaks.
There is water in the oil.
Have the oil checked.
Page 282 of 384
282 Practical hintsWhat to do if …?When the
ENGINE OIL LEVEL – CHECK LEV-
EL!
message appears while the engine is
running and at operating temperature, the
engine oil level has dropped to approxi-
mately the minimum mark on the dipstick.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 “full”
mark on the dipstick with an approved oil.
Display
Possible cause
Possible solution
:
ENGINE OIL LEVEL
VISIT WORKSHOP!
The measuring system is malfunctioning.
Have the measuring system checked
by an authorized Mercedes-Benz
Center.
ENGINE OIL LEVEL
CHECK LEVEL!
The engine oil level is too low.
Check the engine oil level
(page 238) and add oil as required.
!The engine oil level warnings should
not be ignored. Extended driving with
the symbol displayed could result in se-
rious engine damage that is not cov-
ered by the Mercedes-Benz Limited
Warranty.
Page 283 of 384
283 Practical hints
What to do if …?
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ESP
MALFUNCTION!
VISIT WORKSHOP!
The ESP has detected a malfunction and
switched off.
The ABS may still be operational.
Continue driving with added caution.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions in-
creases the risk of an accident.
DISPLAY MALFUNCTION
VISIT WORKSHOP!
The ESP or the ESP display is malfunction-
ing.
Continue driving with added caution.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions in-
creases the risk of an accident.
NOT AVAILABLE!
SEE OPER. MANUAL
The ESP was deactivated because the pow-
er supply has been interrupted. The ABS is
still operational.
With the vehicle stationary and the
engine running, turn the steering
wheel completely to the left and then
to the right to synchronize the ESP.
If the ESP message does not go out:
Continue driving with added caution.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions in-
creases the risk of an accident.
