ESP MERCEDES-BENZ S-Class 2008 W221 Comand Manual

703 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Wheel Sensor(s)
Missing
One or more sensors malfunction (e.g. bat-
tery in one or more wheel sensor is empty).
One or more wheels without wheel sensors
mounted (e.g. spare tire).
No pressure value is shown on the multi-
function display for the tire in question.

Have the Advanced TPMS checked by an au-
thorized Mercedes-Benz Center.

Have the wheel sensors installed by an
authorized Mercedes-Benz Center.
The tire pressure for the respective tire is
shown in the multifunction display after a few
minutes of driving.
Tire Pressure
Please Rectify
The pressure is too low in one or more tires.
Or the tire pressures of the individual
wheels differ too radically from one anoth-
er.

Check and adjust tire inflation pressure as
required (
page 593).

706 Practical hintsWhere will I find ...?Vehicle jack
Storage position
Remove vehicle jack from its
compartment.

Turn crank handle in direction of arrow
as far as it will go.
Operational position
Turn crank handle clockwise.
Before storing the vehicle jack in its
compartment:


It should be fully collapsed.


The handle must be folded in (storage
position).
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 engage the electronic parking brake
and block wheels before raising vehicle with
jack.
Do not disengage electronic parking brake
while the vehicle is raised. Be certain that
the jack is always vertical (plumb line) when
in use, especially on hills. Always try to use
the jack on level surface. Make sure the jack
arm is fully seated in the jack take-up brack-
et. Always lower the vehicle onto sufficient
capacity jackstands before working under
the vehicle.

723 Practical hints
Flat tire
Flat tire
Preparing the vehicle
Park the vehicle in a safe distance from
moving traffic on a hard, flat surface
when possible.

Turn on the hazard warning flasher
(page 405).

Turn the steering wheel so that the
front wheels are in a straight ahead
position.

Shift the automatic transmission to
park positionP.

Engage the electronic parking brake.

Turn off the engine.

Have any passenger exit the vehicle at
a safe distance from the roadway.

Vehicles with SmartKey: Remove the
SmartKey from the starter switch.
Vehicles with KEYLESS-GO*: 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.
Remove the KEYLESS-GO*
start/stop button from the starter
switch.
Mounting the spare wheel
i
Open the door only when conditions are safe
to do so.
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 spare wheel
mounted. Adapt your driving style accord-
ingly.
The spare wheel is for temporary use only.
When driving with spare wheel mounted,
ensure proper tire inflation pressure and
do not exceed a vehicle speed
of 50 mph (80 km/h).
Contact the nearest Mercedes-Benz Center
as soon as possible to have the spare wheel
replaced with a regular road wheel.
Never operate the vehicle with more than
one spare wheel mounted.
Do not switch off the ESP
® when a spare
wheel is mounted.

724 Practical hintsFlat tirePreparing the vehicle
Prepare the vehicle as described
(page 723).

Take vehicle tool kit tray and vehicle
jack out of trunk (
page 705).

Take the spare wheel from the wheel
well under the trunk floor
(page 707).
Lifting the vehicle

Prevent the vehicle from rolling away
by blocking wheels with wheel chocks
or other sizeable objects.
One wheel chock is included with the
vehicle tool kit (
page 707).
When changing wheel on a level surface:

Place the wheel chock in front of and
another sizeable object behind the
wheel that is diagonally opposite to the
wheel being changed.Always try lifting the vehicle using the jack
on a level surface. However, should cir-
cumstances require you to do so on a hill,
place the wheel chock and another size-
able object as follows:

Place the wheel chock and another
sizeable object on the downhill side
blocking both wheels on the side of the
vehicle not being worked on.

Wheel wrench

On wheel to be changed, loosen but
do not yet remove the wheel bolts
(approximately one full turn with
wrench 1).
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 en-
gage the electronic parking brake and block
wheels before raising vehicle with jack.
Do not disengage electronic parking brake
while the vehicle is raised. Be certain that
the jack is always vertical (plumb line) when
in use, especially 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. Always lower the vehi-
cle onto sufficient capacity jackstands be-
fore working under the vehicle.

729 Practical hints
Batteries
Batteries
Your vehicle is equipped with two batter-
ies:

The starter battery, located in the en-
gine compartment


The battery for electrical consumers
(consumer battery), located in the
trunk
The batteries should always be sufficiently
charged in order to achieve its rated ser-
vice life. Refer to Maintenance Booklet for
battery maintenance intervals.
If you use your vehicle mostly for short-dis-
tance trips, you will need to have the bat-
tery charge checked more frequently.
When replacing the batteries, always use
batteries approved by Mercedes-Benz.
If you do not intend to operate your vehicle
for an extended period of time, consult an
authorized Mercedes-Benz Center about
steps you need to observe.Batteries contain materials that can harm
the environment if disposed of improperly.
Large 12-volt storage batteries contain
lead. Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.
!
Do not tow-start the vehicle.
Warning!
G
Observe all safety instructions and precau-
tions when handling automotive batteries.
Risk of explosion.
Fire, open flames and smoking
are prohibited when handling
batteries. Avoid creating sparks.
Battery acid is caustic. Do not
allow it to come into contact
with skin, eyes or clothing.
Wear suitable protective cloth-
ing, especially gloves, apron and
faceguard.
Wear eye protection.
Rinse any acid spills immediate-
ly with clear water. Contact a
physician if necessary.
Keep children away.
Follow the instructions in this
Operator’s Manual.

738 Practical hintsTowing the vehicleTowing with front wheels raised

Vehicles with KEYLESS-GO*: Remove
the KEYLESS-GO start/stop button
from the starter switch (
page 371).

Insert the SmartKey into the starter
switch.

Switch on the ignition.

Switch off the automatic central lock-
ing (
page 267).

Depress the brake pedal.

Shift the automatic transmission to
neutral positionN.

If engaged, manually release the
electronic parking brake.

Switch off the ignition and leave the
SmartKey in the starter switch.
!
Vehicles with 4MATIC:
Do not tow with one axle raised. Doing so could
damage the transfer case, which is not covered
by the Mercedes-Benz Limited Warranty.
All wheels must be on or off the ground. Observe
instructions for towing the vehicle with all
wheels on the ground (
page 739).
Warning!
G
When leaving the SmartKey or SmartKey
with KEYLESS-GO* in the starter switch, do
not leave children unattended in the vehicle.
It is possible for children to switch on the
ignition which could result in unsupervised
use of vehicle equipment. Unsupervised use
of vehicle equipment could result in an
accident and/or serious personal injury.
!
Keep in mind that it is important for the
SmartKey to be left in starter switch with the ig-
nition switched off. As soon as the SmartKey is
removed from the starter switch the automatic
transmission will shift to park positionP.
!
Make sure that the ignition is switched off.
If the starter switch is in position2, active brak-
ing action through the ESP
® may otherwise seri-
ously damage the brake system.
!
The vehicle may be towed only for distances
up to 30 miles (50 km) and at a speed not to ex-
ceed 30 mph (50 km/h).

743 Practical hintsFuses
Box on the front passenger sideExample illustration from S 5501Retaining lugs
2Cover
Opening
Press retaining lugs1.

Remove cover2.
Closing

Attach cover2.

Press cover2 down manually.
Fuse boxes in passenger compartment
Fuse boxes in dashboard
1Cover1Cover
Opening

Open the respective door.

Using your hands, pull cover1 in the
direction of the arrow and remove.
Closing

Hook cover1 into the opening at the
front.

Press cover1 back on until it
engages.
!
The cover must fit properly, as otherwise
moisture or dirt may impair the functionality of
the fuses.
!
Do not use sharp objects such as a screw
driver to open the fuse box cover in the dash-
board, as this could damage it.

744 Practical hintsFusesFuse box in the rear passenger
compartment
1CoverOpening

Swing down center armrest.

Open cover behind center armrest.

Pull cover1 forward in direction of ar-
row.
Closing

Press cover1 backward and engage.
Emergency engine shut-down
If the engine cannot be turned off as de-
scribed in the “Turning off the engine” sec-
tion (
page 424), you may use the
following emergency procedure.

Take the fuse chart and the fuse extrac-
tor from the vehicle tool kit
(page 705).

Find row “Emergency engine
shut-down” in the fuse chart table to
identify the fuses that have to removed
as well as their locations.

Remove the respective fuses.
!
Make sure that the seal in the cover is not
damaged during opening or closing.

751 Technical data
Engine
Engine
Model
S 450 4MATIC (221.184)
1,2
1The quoted data apply only to the standard vehicle. Contact an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equip-
ment.2Canada only
S 550 (221.171)
1
Engine
273
273
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
8
8
Bore
3.66 in (92.90 mm)
3.86 in (98.00 mm)
Stroke
3.39 in (86.00 mm)
3.56 in (90.50 mm)
Total piston displacement
284.6 cu in (4 663 cm
3)
333.3 cu in (5 461 cm
3)
Compression ratio
10.5:1
10.7:1
Output acc. to SAE J 1349
3
3Premium fuel required. Performance may vary with fuel octane rating.
335 hp/6 000 rpm
(250 kW/6 000 rpm)
382 hp/6 000 rpm
(285 kW/6 000 rpm)
Maximum torque
acc. to SAE J 1349
391 lb-ft/2 700 - 5 000 rpm
(460 Nm/2 700 - 5 000 rpm)
391 lb-ft/3 000 rpm
(530 Nm/3 000 rpm)
Maximum engine speed
6 500 rpm
6500 rpm
Firing order
1-5-4-2-6-3-7-8
1-5-4-2-6-3-7-8
Poly-V-belt
2 404 mm
2404 mm

752 Technical dataEngineModel
S 550 4MATIC (221.186)
1
S 600 (221.176)
1
1The quoted data apply only to the standard vehicle. Contact an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equip-
ment.Engine
273
275
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
8
12
Bore
3.86 in (98.00 mm)
3.23 in (82.00 mm)
Stroke
3.56 in (90.50 mm)
3.43 in (87.00 mm)
Total piston displacement
333.3 cu in (5 461 cm
3)
336.4 cu in (5 513 cm
3)
Compression ratio
10.5:1
9:1
Output acc. to SAE J 1349
2
2Premium fuel required. Performance may vary with fuel octane rating.
382 hp/6 000 rpm
(285 kW/6 000 rpm)
510 hp/5 000 rpm
(380 kW/5 000 rpm)
Maximum torque
acc. to SAE J 1349
391lb-ft/2800-4800rpm
(530 Nm/2 800 - 4 800 rpm)
612 lb-ft/1 800 - 3 500 rpm
(830 Nm/1 800 - 3 500 rpm)
Maximum engine speed
6500 rpm
5 950 rpm
Firing order
1-5-4-2-6-3-7-8
1-12-5-8-3-10-6-7-2-11-4-9
Poly-V-belt
2404 mm
2 370 mm