Light MERCEDES-BENZ S-Class 2008 W221 Comand Manual

716 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, contact an authorized
Mercedes-Benz Center.
Have the LEDs and bulbs for the following
lamps replaced by an authorized
Mercedes-Benz Center:


the Bi-Xenon lamps


the front turn signal lamps


the front fog lamps


the additional turn signal lamps in the
exterior rear view mirrors


the parking and standing lamps


the front side marker lamps


the high mounted brake lamps


the brake, tail and rear standing lamps


the rear side marker lamps


the rear fog lamp


the rear turn signal lamps


the rear side marker lamps


the license plate lamps
Warning!
G
Bulbs and bulb sockets can be very hot. Al-
low the lamp to cool down before changing
a bulb.
Keep bulbs out of reach of children.
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.
!
Do not replace the LEDs yourself. You could
otherwise damage the LEDs or parts of the vehi-
cle. Only have the LEDs replaced by an autho-
rized Mercedes-Benz Center.
i
Have the headlamp adjustment checked
regularly.

726 Practical hintsFlat tireRemoving the wheel
1Alignment bolt
Unscrew upper-most wheel bolt and
remove.

Replace this wheel bolt with alignment
bolt1 supplied in the tool kit.

Remove the remaining bolts.

Remove the wheel.Attaching the spare wheel
1Wheel bolt for light alloy rims and
Minispare wheel with light alloy rim
2Wheel bolt for Minispare wheel with
steel rim (located in trunk with spare
wheel)
!
Do not place wheel bolts in sand or dirt. This
could result in damage to the bolt and wheel hub
threads.
Warning!
G
Always replace wheel bolts that are dam-
aged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be re-
paired immediately. Do not continue to drive
under these circumstances! Contact an au-
thorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect wheel bolts or improperly tight-
ened wheel bolts can cause the wheel to
come off. This could cause an accident.
Make sure you are using the correct wheel
bolts.
Warning!
G
Only use Genuine Mercedes-Benz wheel
bolts. Other wheel bolts may come loose.
Do not tighten the wheel bolts when the ve-
hicle is raised. Otherwise the vehicle could
fall off the jack.

727 Practical hints
Flat tire

Clean contact surfaces of wheel and
wheel hub.

Guide the spare wheel onto the align-
ment bolt and push it on.

Insert wheel bolts and tighten them
slightly.

Unscrew the alignment bolt, install the
last wheel bolt and tighten slightly.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
!
Wheel bolts2 must be used when mount-
ing a Minispare wheel with steel rim. The use of
any wheel bolts other than wheel bolts2 for a
Minispare wheel with steel rim will physically
damage the vehicle’s brakes.
Wheel bolts1 must be used when mounting a
Minispare wheel with light alloy rim. The use of
any wheel bolts other than wheel bolts1 for
a Minispare wheel with light alloy rim will physi-
cally damage the vehicle’s brakes.
Warning!
G
Make sure to use the original length wheel
bolts when remounting the original wheel
after it has been repaired.
!
To avoid paint damage, place wheel flat
against hub and hold it there while installing first
wheel bolt.

735 Practical hints
Jump starting
Jump starting should only be performed on
the starter battery. The starter battery is
located in the engine compartment on the
passenger side (
page 731).

Make sure the two vehicles do not
touch.

Secure vehicle in place with electronic
parking brake (
page 422).

Shift the automatic transmission to
park positionP (
page 426).

Turn off all electrical consumers, ex-
cept hazard warning flashers or work
lights.

Open the hood (
page 573).

Start the engine of the vehicle with the
charged battery and run at idle speed.1Positive terminal of your vehicle’s
battery
2Positive terminal of other vehicle’s
battery
3Negative terminal of other vehicle’s
battery
4Negative clamp
Warning!
G
Keep flames or sparks away from battery.
Do not smoke.
Observe all safety instructions and precau-
tions when handling automotive batteries
(page 729).
i
Vehicles with KEYLESS-GO*: remove the
KEYLESS-GO button (
page 371) and use the
SmartKey with KEYLESS-GO like a normal
SmartKey.


755 Technical data
Rims and tires
Same size tiresModel
S 450 4MATIC
S 550
S 550 4MATIC
S 450 4MATIC*
S 550 4MATIC*
S600
S550 (Sport Package*)
S600 (Sport Package*)
Rims (light alloy)
8.5 J x18 H2
8.5 J x 19 H2
8.5 J x18 H2
Wheel offset
1.69 in (43 mm)
1.69 in (43 mm)
1.69 in (43 mm)
Summer tires
1
1Radial-ply tires.
–
255/40 R19 96Y
–

756 Technical dataRims and tiresModel
S63AMG
S 63 AMG (Performance Package*)
S65AMG
Rims (light alloy)
8.5 J x19 H2
Wheel offset
1.69 in (43 mm)
Winter tires
1,2,3

1Radial-ply tires.2For use with snow chains contact an authorized Mercedes-Benz Center.3Not available as factory equipment.
255/40 R19 100V XL (Extra Load) M+S.

757 Technical data
Rims and tires
Mixed size tiresModel
S550*
S600
S550*
S600*
Front axle:
Rims (light alloy)
8.5 J x 18 H2
8.5 J x 19 H2
Wheel offset
1.69 in (43 mm)
1.69 in (43 mm)
Summer tires
1
1Radial-ply tires.
255/45 R18 99V
255/40 R19 96Y
Rear axle:
Rims (light alloy)
9.5 J x 18 H2
9.5 J x 19 H2
Wheel offset
1.69 in (43 mm)
1.69 in (43 mm)
Summer tires
1
275/45 R18 103V
275/40 R19 101Y

758 Technical dataRims and tiresModel
S550 (SportPackage*)
S600 (SportPackage*)
S63AMG*
S65AMG*
S 63 AMG (Performance Package*)
Front axle:
AMG rims (light alloy)
8.5 J x 19 H2
8.5 J x 20 H2
Wheel offset
1.69 in (43 mm)
1.69 in (43 mm)
Summer tires
1
1Radial-ply tires.
255/40 R19 96Y
255/35 ZR20 XL (Extra Load)
Rear axle:
AMG rims (light alloy)
9.5 J x 19 H2
9.5 J x 20 H2
Wheel offset
1.69 in (43 mm)
1.69 in (43 mm)
Summer tires
1
275/40 R19 101Y
275/35 ZR20 XL (Extra Load)
2
2Must not be used with snow chains.

759 Technical data
Rims and tires
Spare wheelModel
S 450 4MATIC
S 550
S 550 4MATIC
S 600
S 550 (Sport Package*)
S 600 (Sport Package*)
S63AMG
S 63 AMG (Performance Package*)
S65AMG
Rim (steel)
4.5 B x 19 H2
4.5 B x 19 H2
–
Rim (light alloy)
–
–
4.5 B x 19 H2
Wheel offset
1.38 in (35 mm)
1.38 in (35 mm)
1.38 in (35 mm)
Minispare tire
1
1Must not be used with snow chains.
T 155/70 R19 113M
T 155/70 R19 113M
T 155/70 R19 113M
Recommended tire inflation pressure
61 psi (4.2 bar)
61 psi (4.2 bar)
61 psi (4.2 bar)
!
Please compare the recommended tire
inflation pressure for your vehicle with the tire
inflation pressure on the yellow label located on
the spare wheel rim.
If the tire inflation pressure on the yellow label
on the spare wheel rim differs from the values
given in this Operator’s Manual, inflate the spare
wheel tire to the recommended tire inflation
pressure given on the yellow label on the spare
wheel rim.
i
Please note that the tire inflation pressure of
the spare tire differs from the tire inflation pres-
sure of the road tires.

770 Technical dataFuels, coolants, lubricants, etc.Premium unleaded gasoline
Fuel requirements
Only use premium unleaded fuel:

The octane number (posted at the
pump) must be 91 min. It is an average
of both the Research Octane Number
(RON) and the Motor Octane Number
(MON): (RON+MON)/2. This is also
known as the ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not exceed
10%; MTBE must not exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional co-solvents.
Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains
10% ethanol and 90% unleaded gasoline,
can be used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc.
Warning!
G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious per-
sonal injury.
Never allow sparks, flame or smoking mate-
rials near gasoline!
Turn off the engine before refueling.
Whenever you are around gasoline, avoid in-
haling fumes and skin or clothing contact,
extinguish all smoking materials.
Direct skin contact with fuels and the inha-
lation of fuel vapors are damaging to your
health.
!
To maintain the engine’s durability and per-
formance, premium unleaded gasoline must be
used. If premium unleaded gasoline is not avail-
able and low octane fuel is used, follow these
precautions:


Have the fuel tank only partially filled with
unleaded regular gasoline and fill up with
premium unleaded gasoline as soon as
possible.


Avoid full throttle driving and abrupt acceler-
ation.


Do not exceed an engine speed of 3 000 rpm
if the vehicle is loaded with a light load such
as two persons and no luggage.


Do not exceed
2/3 of maximum accelerator
pedal position if the vehicle is fully loaded or
operating in mountainous terrain.