2008 MERCEDES-BENZ S550 4MATIC starting battery

Contents
Where will I find ...? ........................... 668
First aid kit ................................... 668
Vehicle jack, vehicle tool kit,
luggage bowl, Minispare wheel .... 668
Unlocking/locking in an emergency .. 671
Unlocking the vehicle ................... 671
Locking the vehicle ...................... 672
Mechanically releasing the
electronic parking brake .............. 673
Opening/closing in an emergency..... 674
Power tilt/sliding sunroof or
panorama roof with
power tilt/sliding panel*.............. 674
Resetting activated head restraints ... 675
Replacing SmartKey batteries ........... 676
Replacing bulbs ................................. 678
Bulbs ............................................ 679
Replacing bulbs for front lamps ... 680
Replacing wiper blades ...................... 684
Placing wiper arms in vertical
position ........................................ 684
Removing wiper blades ................ 685
Installing wiper blades................. 685
Flat tire .............................................. 686
Preparing the vehicle ................... 686
Mounting the spare wheel............ 686Batteries ............................................. 692
Disconnecting starter battery ....... 694
Removing starter battery .............. 695
Charging battery ........................... 695
Reinstalling starter battery ........... 696
Reconnecting starter battery ........ 696
Jump starting ...................................... 697
Towing the vehicle .............................. 700
Installing towing eye bolt .............. 703
Fuses .................................................. 704
Fuse boxes in engine
compartment ................................ 705
Fuse boxes in passenger
compartment ................................ 706
Emergency engine shut-down ....... 707
Technical data.................................. 709
Parts service....................................... 710
Warranty coverage ............................. 711
Loss of Service and Warranty
Information Booklet ...................... 711
Identification labels ............................ 712
Layout of poly-V-belt drive .................. 714
S 550 ............................................ 714
S 63 AMG ..................................... 714S 600 and S 65 AMG .................... 714
Engine ................................................ 715
Rims and tires .................................... 718
Same size tires ............................. 719
Mixed size tires ............................. 720
Spare wheel .................................. 721
Electrical system ................................ 722
Main dimensions and weights ............ 723
Main dimensions........................... 723
Weights......................................... 723
Fuels, coolants, lubricants, etc. .......... 724
Capacities ..................................... 724
Engine oils .................................... 728
Engine oil additives ....................... 728
Air conditioning refrigerant ........... 728
Brake fluid .................................... 728
Premium unleaded gasoline.......... 729
Fuel requirements......................... 729
Gasoline additives......................... 730
Coolants ....................................... 730
Windshield washer system and
headlamp cleaning system ........... 733
Index................................................. 735

81 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
With the SmartKey: Remove the
SmartKey from the starter switch.
With the KEYLESS-GO*: Turn off the
engine (
page 346) and open the driv-
er’s door.
Deactivating
Switch on the ignition (page 344).
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens:

a door

the trunk

the hood
The alarm will stay on even if the activating
element (a door, for example) is immedi-
ately closed.
The alarm system will also be triggered
when

the vehicle is opened with the
mechanical key

a door is opened from the inside
To cancel the alarm after it has been trig-
gered, see “Canceling the alarm”
(
page 82).1Indicator lamp
Arming: Lock your vehicle with the
SmartKey or KEYLESS-GO*.
The turn signal lamps flash three times
to indicate that the vehicle is locked.
The indicator lamp1 flashes to indi-
cate that the alarm system is armed.
iStarting the engine will also deactivate the
immobilizer.
In case the engine cannot be started (yet the ve-
hicle’s battery is charged), the system is not op-
erational. Contact an authorized Mercedes-Benz
Center or call 1-800-FOR-MERCedes (in the
USA), or 1-800-387-0100 (in Canada).
iIf the alarm stays on for more than
30 seconds, a call to the Response Center is ini-
tiated automatically by the Tele Aid system
(
page 510) provided Tele Aid service was sub-
scribed to and properly activated, and that nec-
essary mobile phone, power supply and GPS
coverage are available.


344 Controls in detail
Starter switch positions
SmartKey
Starter switch
0For removing SmartKey
1Power supply for some electrical con-
sumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position.
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary.
If a lamp in the instrument cluster re-
mains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 598).
3Starting positionFor information on starting the engine us-
ing the SmartKey, see “Starting with the
SmartKey” (
page 390).
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.
iWhen you switch on the ignition, the indica-
tor and warning lamps (except high beam head-
lamp indicator lamp and turn signal indicator
lamps unless activated) in the instrument cluster
come on. The indicator and warning lamps (ex-
cept high beam headlamp indicator lamp and
turn signal indicator lamps if activated) should go
out when the engine is running. This indicates
that the respective systems are operational.
iWhen the SmartKey is removed from the
starter switch and the automatic transmission is
in a position other thanP, the automatic trans-
mission automatically shifts to P.
!If the SmartKey cannot be turned in the
starter switch, the battery may not be sufficient-
ly charged.

Check the battery and charge it if necessary
(
page 692).

Get a jump start (page 697).
To prevent accelerated battery discharge or a
completely discharged battery, always remove
the SmartKey from the starter switch when the
engine is not in operation.

391 Controls in detail
Driving and parking
Press KEYLESS-GO start/stop button
once.
The engine starts if the SmartKey with
KEYLESS-GO is in the vehicle.
For information on turning off the engine
with KEYLESS-GO, see “Turning off the en-
gine” (
page 397).Starting difficulties
The engine does not start. You can hear
the starter.
There could be a malfunction

in the engine electronics, or

in the fuel supply system
Carry out the following steps:
If you are starting the engine with the
SmartKey: Turn SmartKey in starter
switch to position0 and repeat starting
procedure (
page 389).
If you are starting the engine with
KEYLESS-GO*: Close any doors that
may be open to allow for better detec-
tion of the SmartKey with
KEYLESS-GO*.
or
Remove the KEYLESS-GO* start/stop
button from starter switch.
Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO*.
Repeat the starting procedure
(
page 389).
If the engine does not start after several
starting attempts:
Contact an authorized Mercedes-Benz
Center or call Roadside Assistance.
The engine does not start. You cannot
hear the starter.
The battery may not be sufficiently
charged.
Get a jump start (page 697).
If the engine will not start despite a jump
start:
Contact an authorized Mercedes-Benz
Center or call Roadside Assistance.
iYou can also start the engine with the auto-
matic transmission set to N.
iIf you wish to start the vehicle with the
SmartKey instead of the KEYLESS-GO feature,
remove the KEYLESS-GO start/stop button from
the starter switch and proceed as described in
“Starting with the SmartKey” (
page 390).
!Remember that extended starting attempts
can drain the battery.

432 Controls in detail
Driving systems
Starting off
When the vehicle in front of you starts off:
Remove your foot from the brake
pedal.
Pull DISTRONIC Plus lever briefly in di-
rection of arrow4.
or
Briefly step on the accelerator pedal.
Your vehicle starts off and adapts its speed
to the vehicle in front of you.Driving
If no vehicle is driving ahead of you,
DISTRONIC Plus functions like the cruise
control (
page 419).
When DISTRONIC Plus detects that the ve-
hicle in front of you is driving more slowly,
it brakes the vehicle in order to keep the
distance specified by you.
When DISTRONIC Plus detects that the ve-
hicle in front of you is driving faster, the ve-
hicle accelerates up to the set speed.Stopping
iIf DISTRONIC Plus is switched off,
PRE-SAFE® Brake* (page 76) will warn of an
impending collision if this function has been ac-
tivated with the instrument cluster control sys-
tem (
page 279).
Warning!G
When you step on the brake pedal, you
switch off DISTRONIC Plus except when the
vehicle is at a standstill. DISTRONIC Plus will
no longer brake your vehicle. You are always
responsible for maintaining a distance from
other vehicles, observing road speeds and
braking well in advance.
Warning!G
DISTRONIC Plus’s braking effect is canceled
and the vehicle can start to roll if

DISTRONIC Plus is switched off using
the DISTRONIC Plus lever

you accelerate

the system or the power supply is mal-
functioning, e.g. due to battery failure

the electrical components in the engine
compartment or the fuses have been
manipulated

the battery is disconnected


697 Practical hints
Jump starting
Jump starting
If the starter battery is discharged, the en-
gine can be started with jumper cables and
the battery of another vehicle. Observe the
following:

Jump starting should only be performed
when the engine and catalytic convert-
er are cold.

Do not start the engine if the battery is
frozen. Let the battery thaw out first.

Only use 12-volt battery to jump start
your vehicle. Jump starting with a high-
er voltage battery could damage the ve-
hicle’s electrical system, which will not
be covered by the Mercedes-Benz Lim-
ited Warranty.

Only use jumper cables with sufficient
cross-section and insulated terminal
clamps.

Always make sure that the jumper ca-
bles are not on or near pulleys, fans or
other parts that move when an engine
is started or running.
Warning!G
Failure to follow these directions will cause
damage to the electronic components, and
can lead to a battery explosion and severe
injury or death.
Never lean over batteries while connecting
or jump starting, you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water, and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and very explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking, etc.
Attempting to jump start a frozen battery
can result in it exploding, causing personal
injury.
Read all instructions before proceeding.
!Do not tow-start the vehicle.
!Jump starting should only be performed on
the starter battery installed in the engine com-
partment.
Avoid repeated and lengthy starting attempts.
Do not attempt to start the engine using a bat-
tery quick charge unit.
If engine does not run after several unsuccessful
starting attempts, have it checked at the nearest
authorized Mercedes-Benz Center.
Excessive unburned fuel generated by repeated
failed starting attempts may damage the catalyt-
ic converter and may present a fire risk.
Make sure the jumper cables do not have loose
or missing insulation.
Make sure the cable clamps do not touch any
other metal part while the other end is still at-
tached to a battery.

698 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 694).
Make sure the two vehicles do not
touch.
Secure vehicle in place with electronic
parking brake (
page 395).
Shift the automatic transmission toP
(
page 399).
Turn off all electrical consumers, ex-
cept hazard warning flashers or work
lights.
Open the hood (page 541).
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 692).
iVehicles with KEYLESS-GO*: remove the
KEYLESS-GO button (
page 345) and use the
SmartKey with KEYLESS-GO like a normal
SmartKey.

699 Practical hints
Jump starting
Remove red cover from positive
terminal 1.
Connect positive terminal2 of the
charged battery with positive
terminal1 of the discharged battery
with the jumper cable. Clamp cable to
charged battery2 first.
Connect negative terminal3 of
charged battery to jumper cables and
attach other end4 to a suitable
ground point on the vehicle.
Get into vehicle and start engine within
30 seconds.
If the starting attempt does not suc-
ceed:
Turn the SmartKey in starter switch
to position 0.
Take out the SmartKey.
Turn off engine of donor vehicle, re-
start it and let it run at idle speed
for several minutes.
Disconnect the jumper cable during
this time.
Reconnect jumper cable as de-
scribed before.
Restart engine.
While the engine is running, switch off
several electrical consumers such as
the blower.
Disconnect jumper cables first from
ground point4 and negative
terminal3, then from positive
terminals1 and2.
Have the battery checked at the near-
est authorized Mercedes-Benz Center.!Never invert the terminal connections.