Page 342 of 458
340 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
ESP UNAVAILABLE
SEE OPERATORS MANUAL
The ESP was deactivated the power supply
has been interrupted.
The ABS is still operational.
Synchronize the ESP. With the vehicle sta-
tionary 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.
Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases the
risk of an accident.
!When synchronizing the ESP, make
sure you can turn the steering wheel in
both directions as far as it will go with-
out the wheel hitting any objects, e.g.
aroad curb.
Page 352 of 458

350 Practical hintsWhat to do if …?Display
Possible cause
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 ignition.
REPLACE KEY
DRIVE TO WORKSHOP
The SmartKey is malfunctioning.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
AUTOMATIC LIGHT ON
REMOVE KEY
SmartKey in starter switch position 1
or2.
Remove the SmartKey from the starter
switch.
KEY
CHECK BATTERY
The battery in the SmartKey with KEY-
LESS-GO* is discharged.
Replace the battery (
page 371).
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 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 358 of 458

356 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
<
SEAT BELT SYSTEM
DRIVE TO WORKSHOP
The seat belt system is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
K
CLOSE
SUNROOF
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the tilt/sliding sunroof open.
Close the tilt/sliding sunroof
(page 203).
J
CLOSE
SUNROOF
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the tilt/sliding sunroof open.
Close the tilt/sliding sunroof
(page 203).
L
TELE AID
DRIVE TO WORKSHOP
One or more main functions of the Tele
Aid system are malfunctioning.
Have the Tele Aid system checked by an
authorized Mercedes-Benz Center.
TELE AID BATTERY
DRIVE TO WORKSHOP
The emergency power battery for the Tele
Aid system is malfunctioning. If the vehi-
cle battery is also discharged, Tele Aid
will not be operational.
Have the Tele Aid system checked by an
authorized Mercedes-Benz Center.
t
FUNCTION
UNAVAILABLE
This display appears if button t or
s on the multifunction steering wheel
is pressed and the vehicle is not equipped
with a telephone.
Page 360 of 458
358 Practical hintsWhat to do if …?Tire inflation pressure monitor
messagesDisplay
Possible cause
Possible solution
H
TIRE PRES.
CAUTION, TIRE PRES.
One or more tires are deflating.
Carefully bring the vehicle to a halt, avoid-
ing abrupt steering and braking maneu-
vers. Observe the traffic situation around
you
Change the damaged wheel
(page 381).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
TIRE PRES.
CHECK TIRES!
The pressure has fallen significantly in
one or more tires.
TIRE PRESSURE
PLEASE CORRECT
The pressure is too low in one or more
tires.
Check and correct tire inflation pressure
as required (
page 294).
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 361 of 458
359 Practical hints
What to do if …?
Display
Possible cause
Possible solution
H
TIRE PRES., LF
CAUTION, TIRE PRES.
The left front tire is deflating.
Bring the vehicle to a halt, avoiding
abrupt braking maneuvers. Observe the
traffic situation around you.
Change the wheel (
page 381).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
TIRE PRES., LF
CHECK TIRES!
The left front tire inflation pressure is low.
Carefully bring the vehicle to a halt.
Check and correct the tire inflation pres-
sure (
page 294).
If necessary, change the wheel
(page 381).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
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 362 of 458
360 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
H
TIRE PRES., RF
CAUTION, TIRE PRES.
The right front tire is deflating.
Bring the vehicle to a halt, avoiding
abrupt braking maneuvers. Observe the
traffic situation around you.
Change the wheel (
page 381).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
TIRE PRES., RF
CHECK TIRES!
The right front tire inflation pressure is
low.
Carefully bring the vehicle to a halt.
Check and correct the tire inflation pres-
sure (
page 294).
If necessary, change the wheel
(page 381).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
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 363 of 458
361 Practical hints
What to do if …?
Display
Possible cause
Possible solution
H
TIRE PRES., LR
CAUTION, TIRE PRES.
The left rear tire is deflating.
Bring the vehicle to a halt, avoiding
abrupt braking maneuvers. Observe the
traffic situation around you.
Change the wheel (
page 381).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
TIRE PRES., LR
CHECK TIRES!
The left rear tire inflation pressure is low.
Carefully bring the vehicle to a halt.
Check and correct the tire inflation pres-
sure (
page 294).
If necessary, change the wheel
(page 381).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
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 364 of 458
362 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
H
TIRE PRES., RR
CAUTION, TIRE PRES.
The right rear tire is deflating.
Bring the vehicle to a halt, avoiding
abrupt braking maneuvers. Observe the
traffic situation around you.
Change the wheel (
page 381).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
TIRE PRES., RR
CHECK TIRES!
The right rear tire inflation pressure is
low.
Carefully bring the vehicle to a halt.
Check and correct the tire inflation pres-
sure (
page 294).
If necessary, change the wheel
(page 381).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
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.