Page 339 of 435

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.
Page 340 of 435

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.
Page 341 of 435
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.
Page 342 of 435
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.
Page 343 of 435

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.
Page 346 of 435
345 Practical hints
Where will I find ...?
The vehicle tool kit includes:
One interchangeable slot/Phillips
screwdriver
One towing eye bolt
One wheel bolt wrench with socket
wrench
One alignment bolt
One pair of gloves
One fuse extractor
One fuse chart for the main fuse box
Spare fusesVehicle jack
To prepare the vehicle jack for use
Remove the vehicle jack from the spare
wheel well under the trunk floor.
Push the crank handle up.
Turn the crank handle clockwise until it
engages (operational position).Storing the vehicle jack in the trunk
Retract the vehicle jack arm to the
base of the vehicle jack.
Push the crank handle up.
Turn the crank handle counterclock-
wise to the end of the stop (storage po-
sition).
!To prevent damage, always disengage
trunk floor handle from trunk lid and
lower trunk floor before closing the
trunk lid.
Page 347 of 435

346 Practical hintsWhere will I find ...?
Spare wheel
Removing the spare wheel
Take out the vehicle tool kit tray2.
Loosen the luggage bowl3. To do so,
turn the luggage bowl counterclock-
wise
Remove the spare wheel4.
Storing the spare wheel
Place spare wheel4in wheel well.
Secure the spare wheel. To do so, turn
the luggage bowl3 clockwise to its
stop.
Place vehicle tool kit tray2 in luggage
bowl.Spare wheel S 430, S 500 and S 600
(except Sport Package*)
The spare wheel rim is mounted with a full
sized tire of the same type as on the vehi-
cle, and it is fully functional.
However, that spare wheel rim is weight
optimized and has a limited service life of
12 000 miles (20 000 km) use before a
standard wheel rim must replace it.
In case of flat tire, you may temporarily use
the spare wheel.
Do not operate vehicle with more than one
spare wheel mounted.
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use, es-
pecially on hills. Always try to use the jack
on level surface. Make sure the jack arm is
fully seated in the jack take-up bracket. Al-
ways lower the vehicle onto sufficient ca-
pacity jackstands before working under the
vehicle.
Page 348 of 435

347 Practical hints
Where will I find ...?
For more information, see “Rims and tires”
(page 384).Spare wheel S 55 AMG and Sport
Package*
In case of a flat tire, you may temporarily
use the spare wheel when observing the
following restrictions:
Do not exceed a vehicle speed of
50 mph (80 km/h).
Drive to the nearest tire repair facility
to have the flat tire repaired or re-
placed as appropriate.
Do not operate vehicle with more than
one spare wheel mounted.
For more information, see “Rims and tires”
(
page 384).
Warning!
G
Never operate the vehicle with more than
one spare wheel mounted.
The spare wheel rim is for temporary use
only. Use for over a total of 12 000 miles
(20 000 km) (aggregate of all uses) may
cause wheel rim failure leading to an acci-
dent and possible injuries.
The spare wheel should only be used tempo-
rarily and replaced with a regular road wheel
as quickly as possible.
Warning!
G
The dimensions of the spare wheel are dif-
ferent from those of the road wheels. As a
result, the vehicle handling characteristics
change when driving with a mounted spare
wheel. Adapt your driving style accordingly.
Never operate the vehicle with more than
one spare wheel mounted.
The spare wheel is for temporary use only.
When driving with spare wheel mounted, en-
sure proper tire pressure and do not exceed
vehicle speed of 50 mph (80 km).
The spare wheel rim is for temporary use
only. Use for over a total of 12 000 miles
(20 000 km) (aggregate of all uses) may
cause wheel rim failure leading to an acci-
dent and possible injuries.
The spare wheel should only be used tempo-
rarily and replaced with a regular road wheel
as quickly as possible.