Page 271 of 376
271 Practical hints
What to do if …
Left display
Right display
Possible cause
Possible solution
F
KEYLESS GO
Check system
The KEYLESS-GO* system is mal-
functioning.
Visit an authorized Mercedes-Benz Center as
soon as possible.
Key
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 SmartKey with KEYLESS-GO* with
you when leaving the vehicle.
_
Entry position
Do not drive!
Seat, mirrors and steering wheel
have not yet moved into their preset
driving positions.
Wait until the seat, mirrors and steering
wheel have moved to their driving positions.
The message disappears.
Except Canada:;Canada only:!
Release
parking brake!
You are driving with the parking
brake set.
Release the parking brake (
page 41).
Page 272 of 376

272 Practical hintsWhat to do if …Left display
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Possible cause
Possible solution
<
Seat belt system
Visit workshop!
The seat belt system is malfunction-
ing.
Visit an authorized Mercedes-Benz Center
as soon as possible.
Ê
Close
trunk lid!
This message will appear whenever
the trunk lid is open.
Close the trunk lid.
Close
trunk separator!
You are trying to open or close the
roof even though the luggage cover
in the trunk is not pulled out.
Pull out the luggage cover and secure it
(page 160).
B
Coolant
Check level!
The coolant level is too low.
Add coolant (
page 230).
If you have to add coolant frequently, have
the cooling system checked by an autho-
rized Mercedes-Benz Center.
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
this message and symbol displayed
may cause serious engine damage not
covered by the Mercedes-Benz Limited
Warranty.
Do not drive without sufficient amount
of coolant in the cooling system. The
engine will overheat, causing major en-
gine damage.
Page 279 of 376
279 Practical hints
What to do if …
Left display
Right display
Possible cause
Possible solution
.
Light sensor
Visit workshop!
The light sensor is malfunctioning.
The headlamps switch on automati-
cally.
In the control system, set lamp operation to
manual (
page 124).
Switch on headlamps using the exterior lamp
switch.
?
Visit workshop!
There may be a malfunction in the
fuel injection system
ignition system
exhaust system
fuel system
H a v e t h e e n g i n e c h e c k e d a s s o o n a s p o s s i b l e
by an authorized Mercedes-Benz Center
(page 256).
O
Close hood!
You are driving with the hood open.
Close the hood (
page 228).
:
Engine oil level
Stop, engine off!
There is no oil in the engine. There is
a danger of engine damage.
Carefully bring the vehicle to a halt as soon
as possible.
Turn off the engine.
Add engine oil.
Page 280 of 376
280 Practical hintsWhat to do if …Left display
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Possible cause
Possible solution
:
Engine oil level
Check level!
The engine oil level is too low.
Check the engine oil level (
page 228) and
add oil as required.
Engine oil level
Reduce oil level!
You have added too much engine oil.
There is a risk of damaging the en-
gine or the catalytic converter.
Have oil siphoned. Observe all legal require-
ments with respect to its disposal.
Engine oil
Visit workshop!
The engine oil has dropped to a crit-
ical level.
There is water in the oil.
Check the engine oil level (
page 228) and
add oil as required.
If you must add engine oil frequently, have
the engine checked for possible leaks.
Have the oil checked.
Engine oil level
Visit workshop!
The measuring system is malfunc-
tioning.
Have the measuring system checked by an
authorized Mercedes-Benz Center.
Page 281 of 376
281 Practical hints
What to do if …
Left display
Right display
Possible cause
Possible solution
H
Tire pressure
Caution
tire defect!
One or more tires is rapidly deflat-
ing.
Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Change the wheel (
page 312).
Tire pressure
ChecK tires!
The tire pressure in one or more
tires is already below the minimum
value.
Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Change the wheel (
page 312).
The tire pressure in one or more
tires is low.
Check and correct tire pressure as required
(page 236).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle.
Continued driving with a flat tire will cause
excessive heat build-up and possibly a fire.
Page 282 of 376
282 Practical hintsWhat to do if …Left display
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Possible cause
Possible solution
Tire pressure
control activated!
Pressure display after
driving several mins.
The tire pressure is being checked.
H
Reactivate
tire press. monit
.
The tire inflation pressure monitor* is de-
activated.
Activate the tire inflation pressure
monitor* (
page 237).
Tire press. monit.
currently inactive
The tire inflation pressure monitor* is un-
able to monitor the tire pressure due to:
the presence of several wheel sensors
in the vehicle
excessive wheel sensor temperatures
a nearby radio interference source
unrecognized wheel sensors mounted
Check the tire pressure at the next
service station.
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
Page 283 of 376
283 Practical hints
What to do if …
Left display
Right display
Possible cause
Possible solution
H
Tire press. monit.
Visit workshop!
The tire inflation pressure monitor is
malfunctioning.
A wheel without proper sensor was
installed.
Have the tire inflation pressure monitor
checked by an authorized Mercedes-Benz
Center.
Change the wheel.
Tire pressure, RL
Caution
tire defect!
The left rear tire is rapidly deflating.
Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Change the wheel (
page 312).
Tire pressure, RL
Check tires!
The left rear tire pressure is low.
Carefully bring the vehicle to a halt.
Check the tire pressure.
Change the wheel (
page 312).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle.
Continued driving with a flat tire will cause
excessive heat build-up and possibly a fire.
Page 284 of 376
284 Practical hintsWhat to do if …Left display
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Possible cause
Possible solution
H
Tire pressure, RR
Caution
tire defect!
The right rear tire is rapidly deflat-
ing.
Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Change the wheel (
page 312).
Tire pressure, RR
Check tires!
The right rear tire pressure is low.
Carefully bring the vehicle to a halt.
Check the tire pressure.
Change the wheel (
page 312).
Tire pressure, FL
Caution
tire defect!
The left front tire is rapidly deflat-
ing.
Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
Change the wheel (
page 312).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.