Page 379 of 481
378 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
H
TIRE PRESSURE
PLEASE CORRECT
The pressure is too low in one or more
tires.
Check and correct tire inflation pressure
as required (
page 308).
TIRE PRESSURE
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 403).
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 380 of 481
379 Practical hints
What to do if …?
Display
Possible cause
Possible solution
H
TIRE PRESSURE
CHECK TIRES
The pressure has fallen significantly in
one or more tires.
Carefully bring the vehicle to a halt, avoid-
ing abrupt steering and braking maneu-
vers. Observe the traffic situation around
you.
Check the tires. If no damage visible,
check and correct tire inflation pressure
as required.
Change the damaged wheel
(page 403).
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 381 of 481
380 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
H
TIRE PRESSURE, 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 403).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
TIRE PRESSURE, LF
CHECK TIRES
The left front tire inflation pressure is low.
Carefully bring the vehicle to a halt.
Check the tires. If no damage visible,
check and correct tire inflation pressure
as required (
page 308).
If necessary, change the wheel
(page 403).
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 382 of 481
381 Practical hints
What to do if …?
Display
Possible cause
Possible solution
H
TIRE PRESSURE, 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 403).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
TIRE PRESSURE, RF
CHECK TIRES
The right front tire inflation pressure is
low.
Carefully bring the vehicle to a halt.
Check the tires. If no damage visible,
check and correct tire inflation pressure
as required (
page 308).
If necessary, change the wheel
(page 403).
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 383 of 481
382 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
H
TIRE PRESSURE, 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 403).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
TIRE PRESSURE, LR
CHECK TIRES
The left rear tire inflation pressure is low.
Carefully bring the vehicle to a halt.
Check the tires. If no damage visible,
check and correct tire inflation pressure
as required (
page 308).
If necessary, change the wheel
(page 403).
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 384 of 481
383 Practical hints
What to do if …?
Display
Possible cause
Possible solution
H
TIRE PRESSURE, 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 403).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
TIRE PRESSURE, RR
CHECK TIRES
The right rear tire inflation pressure is
low.
Carefully bring the vehicle to a halt.
Check the tires. If no damage visible,
check and correct tire inflation pressure
as required (
page 308).
If necessary, change the wheel
(page 403).
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 388 of 481

387 Practical hints
Where will I find ...?
Spare wheel S55AMG, S65AMG and
vehicles with 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 426).
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,
ensure proper tire inflation pressure and do
not exceed vehicle speed of 50 mph
(80 km/h).
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.
Page 404 of 481

403 Practical hints
Flat tire
Flat tire
Preparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.
Turn on the hazard warning flashers.
Turn the steering wheel so that the
front wheels are in a straight ahead
position.
Set the parking brake.
Move the gear selector lever toP.
Vehicles with SmartKey:
Turn off the engine (
page 57).
Remove the SmartKey from the starter
switch.
Vehicles with SmartKey with
KEYLESS-GO*:
Turn off the engine by pressing the
KEYLESS-GO* button on the gear se-
lector lever once (
page 57).
Open the driver’s door (this puts the
starter switch in position0, same as
with the SmartKey removed from the
starter switch). The driver’s door then
can be closed again.
Vehicles with SmartKey:
Have any passenger exit the vehicle at
a safe distance from the roadway.
Mounting the spare wheel
iOpen the door only when conditions
are safe to do so.Warning!
G
Never operate the vehicle with more than
one spare wheel mounted.
When driving with spare wheel mounted,
ensure proper tire inflation pressure.
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.
Additional information for S 55 AMG,
S 65 AMG and vehicles with Sport Pack-
age*:
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.
The spare wheel is for temporary use only.
When driving with spare wheel mounted, do
not exceed vehicle speed of 50 mph
(80 km/h).