2004 MERCEDES-BENZ S500 Owner's Manual

336 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
H
TIRE PRES. MONITOR
REACTIVATE!
The tire inflation pressure monitor* is de-
activated.

Activate the tire inflation pressure mon-
itor* (
page 286).
TIRE PRES. MONITOR
VISIT WORKSHOP!
The tire inflation pressure monitor* is
malfunctioning.

Have the tire inflation pressure moni-
tor* checked by an authorized
Mercedes-Benz Center.

Change the wheel (
page 361).
A wheel without proper sensor was in-
stalled.

Check and correct tire pressure as re-
quired (
page 283).
TIRE PRES.
CAUTION, TIRE DEFECT!
One or more tires are deflating.

Carefully bring the vehicle to a halt,
avoiding abrubt steering and braking
maneuvers.

Change the wheel (
page 361).
TIRE PRES.
CHECK TIRES!
The tire pressure in one or more tires is
already below the minimum value.
The tire pressure in one or more tires is
low.

Carefully bring the vehicle to a halt,
avoiding abrubt steering and braking
maneuvers.

Change the wheel (
page 361).
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.

337 Practical hints
What to do if …?
Display symbol
Display message
Possible cause
Possible solution
H
TIRE PRES., RF
CAUTION, TIRE DEFECT!
The right front tire is deflating.

Carefully bring the vehicle to a halt,
avoiding abrubt steering and braking
maneuvers.

Change the wheel (
page 361).
TIRE PRES., RF
CHECK TIRES!
The right front tire pressure is low.

Carefully bring the vehicle to a halt.

Check the tire pressure.

Change the wheel (
page 361).
TIRE PRES., LF
CAUTION, TIRE DEFECT!
The left front tire is deflating.

Carefully bring the vehicle to a halt,
avoiding abrupt steering and braking
maneuvers.

Change the wheel (
page 361).
TIRE PRES., LF
CHECK TIRES!
The left front tire pressure is low.

Carefully bring the vehicle to a halt.

Check the tire pressure.

Change the wheel (
page 361).
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.

338 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
H
TIRE PRES., RR
CAUTION, TIRE DEFECT!
The right rear tire is deflating.

Carefully bring the vehicle to a halt,
avoiding abrubt steering and braking
maneuvers.

Change the wheel (
page 361).
TIRE PRES., 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 361).
TIRE PRES., LR
CAUTION, TIRE DEFECT!
The left rear tire is deflating.

Carefully bring the vehicle to a halt,
avoiding abrupt steering and braking
maneuvers.

Change the wheel (
page 361).
TIRE PRES., LR
CHECK TIRES!
The left rear tire pressure is low.

Carefully bring the vehicle to a halt.

Check the tire pressure.

Change the wheel (
page 361).
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.

339 Practical hints
What to do if …?
Tire pressure monitor messages
(vehicles produced as of approximately
October 2003)Display symbol
Display message
Possible cause
Possible solution
H
TIRE PRES.
CAUTION, TIRE
DEFECT!
One or more tires are deflating.

Carefully bring the vehicle to a halt, avoid-
ing abrubt steering and braking maneu-
vers. Observe the traffic situation around
you

Repair or change the wheel (
page 361).
TIRE PRES.
CHECK TIRES!
The pressure has fallen significantly in
one or more tires.

Carefully bring the vehicle to a halt, avoid-
ing abrubt steering and braking maneu-
vers. Observe the traffic situation around
you.

Repair or change the wheel (
page 361).
TIRE PRES.
PLEASE CORRECT!
The pressure is too low in one or more
tires.

Check and correct tire pressure as re-
quired (
page 283).
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.

340 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
H
TIRE PRES., LF
CAUTION, TIRE
DEFECT!
The left front tire is deflating.

Bring the vehicle to a halt, avoiding
abrubt braking maneuvers. Observe the
traffic situation around you.

Repair or change the wheel (
page 361).
TIRE PRES., LF
CHECK TIRES!
The left front tire pressure is low.

Bring the vehicle to a halt. Observe the
traffic situation around you.

Check the tire.

Check and correct tire pressure as re-
quired.
TIRE PRES., RF
CAUTION, TIRE
DEFECT!
The right front tire is deflating.

Bring the vehicle to a halt, avoiding
abrubt braking maneuvers. Observe the
traffic situation around you.

Repair or change the wheel (
page 361).
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.

341 Practical hints
What to do if …?
Display symbol
Display message
Possible cause
Possible solution
H
TIRE PRES., RF
CHECK TIRES!
The right front tire pressure is low.

Bring the vehicle to a halt. Observe the
traffic situation around you.

Check the tire.

Check and correct tire pressure as re-
quired.
TIRE PRES., LR
CAUTION, TIRE
DEFECT!
The left rear tire is deflating.

Bring the vehicle to a halt, avoiding
abrubt braking maneuvers. Observe the
traffic situation around you.

Repair or change the wheel (
page 361).
TIRE PRES., LR
CHECK TIRES!
The left rear tire pressure is low.

Bring the vehicle to a halt. Observe the
traffic situation around you.

Check the tire.

Check and correct tire pressure as re-
quired.
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.

342 Practical hintsWhat to do if …?Display symbol
Display message
Possible cause
Possible solution
H
TIRE PRES., RR
CAUTION, TIRE
DEFECT!
The right rear tire is deflating.

Bring the vehicle to a halt, avoiding
abrubt braking maneuvers. Observe the
traffic situation around you.

Repair or change the wheel (
page 361).
TIRE PRES., RR
CHECK TIRES!
The right rear tire pressure is low.

Bring the vehicle to a halt. Observe the
traffic situation around you.

Check the tire.

Check and correct tire pressure as re-
quired.
TIRE PRES. MONITOR
REACTIVE AFTER
CORRECTING PRESSURE!
There was a tire pressure warning mes-
sage.
The yellow warning lamp for the tire pres-
sure monitor comes on and you have not
reactivated the system since the last tire
pressure check.

Activate the tire pressure monitor after
correcting the tire pressure values
(page 283).
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.

343 Practical hints
What to do if …?
Display symbol
Display message
Possible cause
Possible solution
H
TIRE PRES. MONITOR
REACTIVATED
The tire pressure monitor is using the cur-
rent pressure values as the basis for mon-
itoring.
TIRE PRES. MONITOR
CURRENTLY
UNAVAILABLE
The tire inflation pressure monitor* is un-
able to monitor the tire pressure due to:

the presence of several wheen sen-
sors in the vehicle


excessive wheel sensor temperatures


a nearby radio interference source


unrecognized wheel sensors installed

Remove any extra wheel sensors from the
vehicle
As soon as the causes of the malfunction
have been removed, the tire pressure moni-
tor automatically becomes active again.
TIRE PRES. MONITOR
NOT OPERATIONAL
DRIVE TO WORKSHOP
The tire pressure monitor or a wheel sen-
sor is malfunctioning.

Have the tire inflation pressure monitor
checked by an authorized Mercedes-Benz
Center.
A wheel without proper sensor was in-
stalled.

Have the wheels checked.
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.