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 387 of 481

386 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 wheel4 in 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 S350, S430, S500 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.
For more information, see “Rims and tires”
(
page 426).
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.
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.
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 393 of 481

392 Practical hintsReplacing SmartKey batteriesIf the batteries in the SmartKey or the
SmartKey with KEYLESS-GO* are dis-
charged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an autho-
rized Mercedes-Benz Center.
Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.
SmartKey
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove the mechanical key out of the
SmartKey (
page 388).1Mechanical key
2Slide
3Battery compartment
Insert mechanical key1 in the direc-
tion of arrow in side opening.
Using mechanical key1, push gray
slide 2 to unlatch battery compart-
ment 3.
Pull battery compartment3 out of the
housing in the direction of arrow.
Warning!
G
Batteries contain poisonous and corrosive
substances. Therefore keep the batteries
out of reach of children.
If a battery is swallowed, seek medical help
immediately.
iWhen inserting the batteries, make
sure they are clean and free of lint.iThe required replacement batteries are
available at any authorized
Mercedes-Benz Center.iWhen changing batteries, always re-
place both batteries.
Page 397 of 481

396 Practical hintsReplacing bulbsNotes on bulb replacement
Only use 12-volt-bulbs of the same
type and with the specified watt rating.
Switch lights off before changing a bulb
to prevent short circuits.
Always use a clean lint-free cloth when
handling bulbs.
Your hands should be dry and free of oil
and grease.
If the newly installed bulb does not
come on, visit an authorized
Mercedes-Benz Center.Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Center.
Additional turn signal lamps in the exte-
rior rear view mirrors
Bi-Xenon lamps*
High mounted brake lamp
Brake lamps
Rear side marker lamps
Rear parking lamps
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Halogen lamps contain pressurized gas. A
bulb can explode if you:
touch or move it when hot
drop the bulb
scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is
dangerous to replace the bulb or repair the
lamp and its components. We recommend
that you have such work done by a qualified
technician.
iHave the headlamp adjustment
checked regularly.
Page 398 of 481
397 Practical hints
Replacing bulbs
Replacing bulbs for front lamps
Before you start to replace a bulb for a
front lamp, do the following first:
Turn the exterior lamp switch to M
(page 50).
Open the hood (
page 287) (except
for side marker lamps).
1Headlamp cover for fog lamp
2Headlamp cover for high beam halogen
headlamp bulb, parking and standing
lamp
3Headlamp cover for Bi-Xenon* (low and
high beam) or halogen (low beam)
headlamp bulb4Bulb socket for fog lamp
5Bulb socket for parking and standing
lamp
6Electrical connector for high beam
halogen headlamp bulb
7Electrical connector for low beam
headlamp bulb
8Bulb socket for turn signal lampReplacing low beam bulbs
Bi-Xenon* headlamp
Warning!
G
Do not remove the cover for the Bi-Xenon
headlamp. Because of high voltage in Xenon
lamps, it is dangerous to replace the bulb or
repair the lamp and its components. We rec-
ommend that you have such work done by a
qualified technician.
Page 402 of 481
401 Practical hints
Replacing wiper blades
Replacing wiper blades
Wiper blades in vertical position
Removing wiper blades
Turn SmartKey in starter switch
position1.
Turn combination switch to wiper
settingII (
page 52).
With wiper arm in vertical position, turn
SmartKey in starter switch to
position0.
Fold the wiper arm forward until it
snaps into place.
Turn the wiper blade at a right angle to
wiper arm (arrow 1).
Slide the wiper blade sideways out of
the retainer in the direction of
arrow2.
!To avoid damage to the hood, the wiper
arms should only be folded forward
when in the vertical position.
Warning!
G
For safety reasons, switch off wipers and re-
move SmartKey from starter switch (vehi-
cles with KEYLESS-GO*: Make sure the
vehicle’s on-board electronics have
status0) before replacing a wiper blade.
Otherwise, the wiper motor could suddenly
turn on and cause injury.
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).