four wheel drive MERCEDES-BENZ S-Class 2008 W221 Comand Manual

Contents
Introduction....................................... 13
Product information ............................. 13
Operator’s Manual ............................... 14
Service and warranty information .. 14
Important notice for California
retail buyers and lessees of
Mercedes-Benz automobiles .......... 15
Maintenance .................................. 15
Roadside Assistance ...................... 15
Change of address or ownership.... 16
Operating your vehicle outside the
USA or Canada............................... 16
Where to find it .................................... 17
Symbols ............................................... 18
Operating safety .................................. 19
Proper use of the vehicle ............... 19
Problems with your vehicle .................. 20
Reporting safety defects...................... 21
Reporting safety defects ................ 21
Vehicle data recording......................... 22
Information regarding electronic
recording devices........................... 22
At a glance.......................................... 23
Exterior view ......................................... 24
Cockpit ................................................. 26
Instrument cluster ................................ 28
Control systems ................................... 30
Center console ..................................... 32
Upper part ...................................... 32
Overhead control panel ........................ 33
Driver’s door control panel ................... 34
Rear door control panel ........................ 35
Storage compartments ......................... 36
Rear passenger compartment .............. 38Safety and Security............................ 39
Occupant safety ................................... 40
Air bags........................................... 42
Occupant Classification System ..... 47
Seat belts........................................ 52
Active head restraints ..................... 56
Preventive occupant safety
(PRE-SAFE
®).................................... 57
Children in the vehicle .................... 58
Override switch for rear passenger
compartment .................................. 64Panic alarm .......................................... 66
Activating........................................ 66
Deactivating.................................... 66
Driving safety systems ......................... 67
ABS ................................................. 67
Adaptive Brake ............................... 68
Adaptive Brake Lights
(S 600 and S 65 AMG, USA only).... 69
BAS ................................................. 69
BAS Plus* ....................................... 70
EBP ................................................. 72
ESP
®............................................... 72
Four wheel electronic traction
system (4MATIC) with the ESP
®..... 76
PRE-SAFE
® Brake* (vehicles with
DISTRONIC Plus* only) ................... 77
Anti-theft systems ................................ 82
Immobilizer ..................................... 82
Anti-theft alarm system .................. 82
Canceling the alarm ........................ 83

73 Safety and Security
Driving safety systems
For more information, see “Practical hints”
section (
page 634) and (
page 642).Electronic traction system
The electronic traction system is a compo-
nent of ESP
®.
The electronic traction system improves
the vehicle’s ability to utilize available trac-
tion, especially under slippery road condi-
tions by applying the brakes to a spinning
wheel.
When you switch off the ESP
®, the elec-
tronic traction system is still enabled.
Warning!
G
The ESP
® cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase the traction afforded. The ESP
®
cannot prevent accidents, including those
resulting from excessive speed in turns, or
hydroplaning. Only a safe, attentive, and
skillful driver can prevent accidents. The ca-
pabilities of an ESP
® equipped vehicle must
never be exploited in a reckless or danger-
ous manner which could jeopardize the us-
er’s safety or the safety of others.
i
DISTRONIC Plus* and cruise control are
switched off when the ESP
® engages.
i
The ESP
® will only function properly if you
use wheels of the recommended tire size
(
page 754).
!
Vehicles without 4MATIC:
Because the ESP
® operates automatically, the
engine and ignition must be shut off (SmartKey
in starter switch position0 or1 or KEYLESS-GO
start/stop button* in position0 or1) when


the electronic parking brake is being tested
on a brake test dynamometer


the vehicle is being towed with the
front/rear axle raised
Active braking action through the ESP
® may oth-
erwise seriously damage the brake system.
For information on vehicles with 4MATIC, see
“Four wheel electronic traction system (4MATIC)
with the ESP
®” (page 76).
Warning!
G
If you are driving too fast, the electronic
traction system cannot reduce the risk of an
accident.
The electronic traction system cannot pre-
vent the natural laws of physics from acting
on the vehicle.

76 Safety and SecurityDriving safety systems1ESP
® off/on

With the engine running, press ESP
®
switch1 until the ESP
® warning
lampv in the instrument cluster
comes on.
The ESP
® is switched off.Switching on the ESP
®

Press ESP
® switch1.
The ESP
® warning lampv in the in-
strument cluster goes out.
You are now again in normal driving
mode with the ESP
® switched on.
Four wheel electronic traction system
(4MATIC) with the ESP
®
Models with all-wheel-drive only.
The 4MATIC improves the vehicle’s ability
to use available traction, e.g. during winter
operation in mountains under snowy
conditions, by applying power to all four
wheels.
i
When the ESP
® is switched off and one or
more drive wheels are spinning, the ESP
® warn-
ing lamp v in the instrument cluster flashes.
However, the ESP
® will then not stabilize the
vehicle.
Warning!
G
When the ESP
® warning lamp v is
illuminated continuously, the ESP
® is
switched off or is not operational due to a
malfunction. Vehicle stability in standard
driving maneuvers reduces.
Adapt your speed and driving to the prevail-
ing road conditions and to the non-operating
status of the ESP
®.
!
Avoid spinning of a drive wheel for an ex-
tended period with the ESP
® switched off. This
may cause serious damage to the drivetrain
which is not covered by the Mercedes-Benz
Limited Warranty.

435 Controls in detail
Automatic transmission
The hill start assist system is inactive

when starting off on a level road or
downhill grades


with the transmission in neutral
position N


with the electronic parking brake set


if the ESP
® has switched off due to a
malfunction
Gear ranges
With the automatic transmission in drive
positionD and driving in program mode C
or S (
page 436), you can select a gear
range for the automatic transmission to
operate within.
You can limit the gear range by pressing
the left gearshift button or pulling the left
gearshift paddle on the steering wheel
gearshift control, and reverse the gear
range limit by pressing the right gearshift
button or pulling the right gearshift paddle
on the steering wheel gearshift control
(
page 438).The selected gear range appears in the
multifunction display.
1Current gear range
Effect
ï
The transmission shifts through
sixth gear only (applies to
vehicles with 7-speed automatic
transmission only).
î
The transmission shifts through
fifth gear only (applies to
vehicles with 7-speed automatic
transmission only).
é
The transmission shifts through
fourth gear only.

564 OperationDriving instructionsTire traction
The safe speed on a wet, snow covered or
icy road is always lower than on a dry road.
You should pay particular attention to the
condition of the road whenever the outside
temperatures are close to the freezing
point.Mercedes-Benz recommends winter tires
(
page 610) with a minimum tread depth
of approximately
1/6in (4 mm) on all four
wheels for the winter season to ensure
normal balanced handling characteristics.
On packed snow, they can reduce your
stopping distance compared to summer
tires.
Stopping distance, however, is still consid-
erably greater than when the road is not
covered with snow or ice. Exercise appro-
priate caution.
Tire speed rating
Regardless of the tire speed rating, local
speed limits should be obeyed. Use pru-
dent driving speeds appropriate to prevail-
ing conditions.
Warning!
G
If ice has formed on the road, tire traction
will be substantially reduced. Under such
weather conditions, drive, steer and brake
with extreme caution.
!
Avoid spinning of a drive wheel. This may
cause serious damage to the drivetrain which is
not covered by the Mercedes-Benz Limited War-
ranty.
Warning!
G
Even when permitted by law, never operate
a vehicle at speeds greater than the maxi-
mum speed rating of the tires.
Exceeding the maximum speed for which
tires are rated can lead to sudden tire fail-
ure, causing loss of vehicle control and pos-
sibly resulting in an accident and/or serious
personal injury and possible death, for you
and for others.

593 Operation
Tires and wheels

Install the valve cap.

Repeat this procedure for each tire.
Checking tire inflation pressure elec-
tronically with the Advanced Tire Pres-
sure Monitoring System
(Advanced TPMS)The TPMS only functions on wheels that
are equipped with the proper electronic
sensors. It monitors the tire inflation pres-
sure, as selected by the driver, in all four
tires. A warning is issued to alert you to a
decrease in pressure in one or more of the
tires.
Tire inflation pressure inquiries are made
using the multifunction display. The
present inflation pressures are displayed
only after a few minutes of travel time.
i
If you have overfilled the tire, release tire in-
flation pressure by pushing the metal stem of the
valve with e.g. a tip of a pen. Then recheck the
tire inflation pressure with the tire gauge.
i
The Advanced
Tire
Pressure
Monitoring
System (Advanced TPMS) is equipped with a
combination low tire pressure/TPMS malfunc-
tion telltale in the instrument cluster
(page 638). Depending on how the telltale illu-
minates, it indicates a low tire inflation pressure
condition or a malfunction in the TPMS system it-
self:


If the telltale illuminates continuously, one
or more of your tires is significantly under-in-
flated. There is no malfunction in the TPMS.


USA only:
If the telltale flashes for 60 seconds and
then stays illuminated, the TPMS system it-
self is not operating properly.
i
USA only:
This device complies with Part 15 of the FCC
Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interfer-
ence, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
i
Canada only:
This device complies with RSS-210 of Industry
Canada. Operation is subject to the following
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation of the device.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
i
Possible differences between the readings
of a tire inflation pressure gauge of an air hose,
e.g. gas station equipment, and the vehicle’s
control system can occur. Usually the readings
issued by the control system are more precise.
i
The menu overview can be found on
(
page 289).


596 OperationTires and wheelsReactivating Advanced TPMS
The TPMS must be reactivated when you
have adjusted the tire inflation pressure to
a new level (e.g. because of different load
or driving conditions). The TPMS is then
recalibrated to the current tire inflation
pressures.
Using the tire Tire and Loading Informa-
tion placard on the driver’s door B-pillar
(page 585) or, if available, the sup-
plemental tire inflation pressure
information on the inside of the fuel fill-
er flap (
page 570), make sure the tire
inflation pressure of all four tires is cor-
rect.

Switch on the ignition (
page 370).

Press( or& to select the menu
“Service”.

Press$ or% to select “Tire
Pressure”.

Press#.
You will see

the current inflation pressures for
each tire
or


the message
“Tire Pressures
Displayed After Driving
a Few Minutes”
appear in the multifunction display.

Press%.
The message
“Use Current
Pressures As New
Reference Values
Press "OK" to Confirm
Tire Press.”
appears in the multifunction display.
Warning!
G
It is the driver’s responsibility to calibrate
the TPMS on the recommended cold infla-
tion pressure. Underinflated tires affect the
ability to steer or brake the vehicle. You
might lose control over the vehicle.
i
Reactivate the TPMS after adjusting the tire
inflation pressure to the inflation pressure rec-
ommended for the vehicle operating condition.
Tire inflation pressure should only be adjusted
on cold tires. Observe the recommended tire in-
flation pressure on the Tire and Loading Informa-
tion placard on the driver’s door B-pillar
(
page 585). Some vehicles may have supple-
mental tire inflation pressure information for
driving at high speeds (
page 591) or for vehi-
cle loads less than the maximum loaded vehicle
condition. If such information is provided, it can
be found on the inside of the fuel filler flap
(
page 570).
i
After wheel rotation or sensor replacement,
the vehicle must be parked for 20 minutes be-
fore attempting to reactivate the TPMS.
i
The menu overview can be found on
(
page 289).

754 Technical dataRims and tires!
Only use tires which have been tested and
approved by Mercedes-Benz. Tires approved by
Mercedes-Benz are developed to provide best
possible performance in conjunction with the
driving safety systems on your vehicle such as
ABS or ESP
®. Tires specially developed for your
vehicle and tested and approved by
Mercedes-Benz can be identified by finding the
following on the tire’s sidewall:


MO = M
ercedes-Benz O
riginal equipment
tires
AMG vehicles:
Does not apply to all approved tires on AMG
vehicles. For information on tested and
approved tires for AMG vehicles, contact an
authorized Mercedes-Benz Center.
Using tires other than those approved by
Mercedes-Benz may result in damage that is not
covered by the Mercedes-Benz Limited
Warranty.
!
Using tires other than those approved by
Mercedes-Benz can have detrimental effects,
such as


poor handling characteristics


increased noise


increased fuel consumption
Moreover, tires and rims not approved by
Mercedes-Benz may, under load, exhibit dimen-
sional variations and different tire deformation
characteristics that could cause them to come
into contact with the vehicle body or axle parts.
Damage to the tires or the vehicle may be the
result.
i
Further information on tires and rims is
available at any authorized Mercedes-Benz
Center. A placard with the recommended tire in-
flation pressures is located on the driver’s door
B-pillar (
page 585). Some vehicles may have
supplemental tire inflation pressure information
for driving at high speeds (
page 591) or for ve-
hicle loads less than the maximum loaded
vehicle condition (
page 598). If such informa-
tion is provided, it can be found on the placard lo-
cated on the inside of the fuel filler flap. The tire inflation pressure should be checked
regularly and should only be adjusted on cold
tires. Follow tire manufacturer’s maintenance
recommendation included with vehicle.
i
The following pages also list the approved
wheel rim and tire sizes for equipping your vehi-
cles with winter tires. Winter tires are not avail-
able as standard or optional factory equipment,
but can be purchased from an authorized
Mercedes-Benz Center.
Depending on vehicle model and the standard or
optional factory-equipped wheel rim/tire config-
uration on your vehicle (Appearance Package,
Sport Package etc.), equipping your vehicle with
winter tires approved for your vehicle model may
also require the purchase of two or four wheel
rims of the recommended size for use with these
winter tires. Contact an authorized
Mercedes-Benz Center for more information.

782 IndexExterior lighting
Delayed switch-off (COMAND) 264
Locator lighting (COMAND) 265
Exterior rear view mirrors
Adjusting 388
Auto-dimming on the
driver’s side 390
Fold in automatically when locking
(COMAND) 266
Lower mirror when reversing
(COMAND) 266
Power folding 389F
Favorite button 263
First aid kit 705
Flat tire 723
Jacking up the vehicle 724
Lowering the vehicle 727
Mounting the spare wheel 723
Preparing the vehicle 723
Floormats* 538
Fluids
Automatic transmission fluid 765
Brake fluid 766, 769
Capacities 764
Engine coolant 579, 767, 771
Engine oil 578, 765, 769
Power steering fluid 766
Windshield washer system and head-
lamp cleaning system 768, 774
Fog lamps
Messages in display 690
Replacing bulbs 715
Four wheel electronic traction system with
ESP
® see 4MATIC
4MATIC 76
Front air bags 46Front lamps
Replacing bulbs 715, 717
Front lamps see headlamps
Front passenger front air bag 46
Messages in display 649
Front passenger front air bag off
indicator lamp 51, 640
Fuel 571, 767, 770
Additives 771
Capacity, Fuel tank 767
Filling the tank 570
Fuel filler flap and cap 570
Fuel reserve warning lamp 29
Gauge 29
Premium unleaded gasoline 571,
767, 770
Requirements, Octane rating 770
Fuel cap
Message in display 683
Fuel consumption statistics
Since last reset 291
Since start 291
Fuel filler flap 570
Locking/Unlocking 570