2004 MERCEDES-BENZ S430 Tire pressure monitor

335 Practical hints
What to do if …?
Tire pressure monitor messages
(vehicles produced up to approximately
October 2003)Display symbol
Display message
Possible cause
Possible solution
H
TIRE PRES.

DISPLAY AFTER DRIVING
A FEW MINS. REACTIVATE
USING R-BUTTON
The tire pressure is being checked.
TIRE PRES. MONITOR
NOT ACTIVE
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 tempera-
tures.


a nearby radio interference source.


unrecognized wheel sensors mount-
ed.

Check the tire pressure at the next ser-
vice 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.

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.

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.

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.

365 Practical hints
Flat tire
Lowering the vehicle
Lower vehicle by turning crank coun-
terclockwise until vehicle is resting ful-
ly on its own weight.

Remove the jack.
1 - 5 Wheel bolts

Tighten the five wheel bolts evenly, fol-
lowing the diagonal sequence illustrat-
ed (1 to 5), until all bolts are tight.
Observe a tightening torque of
110 lb-ft (150 Nm).

Before storing the jack in the trunk, it
should be fully collapsed, with handle
folded in.

Place the wheel bolt wrench, alignment
bolt and jack back in the vehicle tool kit
in the trunk and close the covering lid.Replacing jack support tube cover

Slide tongue of cover under the upper
edge of the tube opening.

Applying even pressure, press cover
until it snaps into place. Be careful not
to damage the locking tabs or clamp
the plastic retaining strap.
Warning!
G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
110 lb-ft. (150 Nm).
!You can also screw the faulty wheel
down into the spare wheel well in the
trunk.
Do not activate the tire inflation pres-
sure monitor* until the depressurized
tire is no longer in the vehicle.

429 Index
Symbol (Distronic*)
Distance warning function* 147
Synchronizing
ESP 316
Power windows 198
Sliding/pop-up roof 202
T
Tachometer 133
Overspeed range 133
Tail lamps
Cleaning 298
Replacing bulbs 354, 358
Tar stains 297
Tele Aid
Information 247
Initiating an emergency call
manually 245
Roadside assistance 246
Tele Aid System 242
Tele Aid button 27
Tele Aid System 405
Tele Aid* 242
Emergency calls 244
Remote door unlock 249Stolen vehicle tracking services 250
System self-check 243
Upgrade signals 248
TeleAid
Messages in display 334
Telematics* 405
Telephone holder*
Storage compartment in front of
armrest 234
Telephone* 241
Answering a call 145
Dialing a number from the phone
book 145
Ending a call 145
Hands-free microphone 27
Loading phone book* 146
Messages in display 334
Operating 144
Redialing 146
Temperature
Display mode 154
Setting interior temperature 183
Setting units in display 154
Tires 284
Tie-down hooks (Trunk) 230Tightening torque 405
Tightening torque (Wheel bolts) 365
Time
Setting digital clock 23
Tire inflation pressure
Checking 271, 283
Tire inflation pressure see the placard on
the fuel filler flap
Tire speed rating 263, 406
Tire traction 263
Tires 282, 399
Direction of rotation 283
Driving instructions 262
Messages in display 336, 339
Retreads 282
Service life 283
Temperature 284
Tire pressure monitor warning
lamp* 309
Tread depth 292
Wear pattern 291
Winter 292
Tools 344