brake 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

Contents
Parktronic system* ...................... 472
Park Assist* ................................. 476
Advanced Parking Guidance*....... 481
Rear View Camera*...................... 487
Night View Assist* ....................... 491
Blind Spot Assist* ........................ 495
Air vents ............................................ 498
Opening and closing air vents ...... 500
Ventilated storage compartment
(Canada only) ............................... 500
Automatic climate control ................. 501
Deactivating climate
control system ............................. 503
Operating climate control system
in automatic mode ....................... 503
Setting temperature ..................... 504
Adjusting air volume .................... 504
Front defroster ............................. 504
Rear window defroster ................. 506
Maximum cooling MAXCOOL
(USA only) .................................... 506
Air recirculation mode.................. 506
Residual engine heat and
ventilation .................................... 509
Rear passenger compartment
climate control* ........................... 509Trunk .................................................. 511
Opening trunk ............................... 511
Closing trunk ................................ 512
Trunk emergency release.............. 516
Valet locking ................................. 517
Power tilt/sliding sunroof................... 518
Opening and closing
power tilt/sliding sunroof ............. 518
Synchronizing ............................... 520
Panorama roof with power
tilt/sliding panel* ............................... 521
Roller sunblinds ............................ 521
Opening and closing panorama
roof with power tilt/sliding panel.. 522
Synchronizing ............................... 524
Loading and storing ............................ 525
Roof rack* .................................... 525
Loading instructions ..................... 525
Storage compartments ................. 526
Cupholders ................................... 530
Trunk ............................................ 532
Useful features ................................... 534
Sun visors ..................................... 534
Vanity mirror in rear...................... 534
Rear window sunshade ................. 535
Ashtrays........................................ 536Cigarette lighters .......................... 537
Power outlet ................................. 538
Floormats* ................................... 538
Telephone* ................................... 539
Tele Aid ......................................... 542
Garage door opener ...................... 551
Infrared reflecting windshield ....... 556
Operation.......................................... 557
The first 1000 miles (1500 km) .......... 558
Driving instructions ............................ 559
Drive sensibly – save fuel ............. 559
Drinking and driving...................... 559
Pedals ........................................... 559
Power assistance .......................... 559
Brakes .......................................... 560
Driving off ..................................... 562
Parking ......................................... 562
Tires.............................................. 563
Hydroplaning ................................ 563
Tire traction .................................. 564
Tire speed rating ........................... 564
Winter driving instructions ............ 565
Standing water ............................. 566
Passenger compartment............... 567

Contents
Flat tire .............................................. 723
Preparing the vehicle ................... 723
Mounting the spare wheel............ 723
Batteries ............................................ 729
Disconnecting starter battery ...... 731
Removing starter battery ............. 732
Charging battery .......................... 732
Reinstalling starter battery........... 733
Reconnecting starter battery ....... 733
Jump starting ..................................... 734
Towing the vehicle ............................. 737
Towing with front wheels raised ... 738
Towing with all wheels
on the ground............................... 739
Installing towing eye bolt ............. 740
Fuses ................................................. 741
Fuse boxes in
engine compartment .................... 742
Fuse boxes in
passenger compartment .............. 743
Emergency engine shut-down ...... 744
Technical data.................................. 745
Parts service....................................... 746
Warranty coverage ............................. 747
Loss of Service and Warranty
Information Booklet ...................... 747
Identification labels ............................ 748
Layout of poly-V-belt drive .................. 750
S 450 4MATIC, S 550 and
S 550 4MATIC............................... 750
S 63 AMG ..................................... 750
S 600 and S 65 AMG .................... 750
Engine ................................................ 751
Rims and tires .................................... 754
Same size tires ............................. 755
Mixed size tires ............................. 757
Spare wheel .................................. 759
Electrical system ................................ 760
Main dimensions and weights ............ 762
Main dimensions........................... 762
Weights ......................................... 763Fuels, coolants, lubricants, etc. .......... 764
Capacities ..................................... 764
Engine oils .................................... 769
Engine oil additives ....................... 769
Air conditioning refrigerant ........... 769
Brake fluid .................................... 769
Premium unleaded gasoline.......... 770
Fuel requirements......................... 770
Gasoline additives......................... 771
Coolants ....................................... 771
Windshield washer system and
headlamp cleaning system ........... 774
Index................................................. 775

27 At a glance
Cockpit
Item
Page
1
Combination switch

High beam


Corner-illuminating lamps


Windshield wipers


Turn signals
403
404
408
420
2
Lever for

Cruise control


DISTRONIC Plus*
447
451
3
Horn
4
Multifunction steering wheel
288
5
Instrument cluster
28
6
Steering wheel gearshift con-
trol
438
7
Gear selector lever for
automatic transmission
416
Item
Page
8
Control panel with

Front passenger front
air bag indicator lamp


Vehicle level control
switch


Electronic Stability Pro-
gram (ESP
®) switch


Parktronic*/Park Assist*
deactivation switch


Swivel COMAND display


COMAND/instrument
cluster display
illumination
51
469,
471
74
475,
480
89
444
9
COMAND display
87
a
Overhead control panel
33
b
Automatic climate control
Center console, upper part
501
32
Item
Page
c
Glove box lock
526
d
Cover of compartment with

CD/DVD changer


PCMCIA card slot
120
121
e
Center console, lower part
30
f
Starter switch
KEYLESS-GO* start/stop
button
370
371
g
Steering wheel adjustment
Heated steering wheel*
386
387
h
Electronic parking brake
422
j
Door control panel
34
k
Hood lock release
573
l
Night View Assist*
491
m
Exterior lamp switch
399

29 At a glance
Instrument cluster
Item
Page
1
Coolant temperature gauge
444
2
Fuel gauge with:
Fuel tank reserve warning
lamp
AHigh beam headlamp
indicator lamp
-ABS indicator lamp
=SRS indicator lamp
683
403
628
637
3
Parktronic*/Park Assist*
warning indicator for left
front area
474,
479
4
Multifunction display with:Speedometer0
USA only
!
Canada only
Electronic
parking brake
warning or indi-
cator lamps
630
Item
Page
;
USA only
3
Canada only
Brake warning
lamp
629
635
HCombination low tire
pressure/TPMS mal-
function telltale, USA
only
Low tire pressure*
telltale, Canada only
638
LLeft turn signal
indicator lamp
420
KRight turn signal
indicator lamp
420
vESP
® warning lamp
634
lDistance warning
lamp*
1
79,
454,
634
1Vehicles without DISTRONIC Plus*: Warning lamp
without function. It illuminates when the ignition is
on. It should go out when the engine is running.
Item
Page
5
Parktronic*/Park Assist*
warning indicator for right
front area
474,
479
6
Gear position/range
indicator
435
7
Tachometer with:±Engine malfunction
indicator lamp
632
8
Selected program mode indi-
cator
437
9
Main menu for control sys-
tem, multifunction display
287
a
Outside temperature
445
b
Display with:Additional speedometer
306
:PRE-SAFE
® Brake*
indicator
303

67 Safety and Security
Driving safety systems
Driving safety systems
This section contains information about
Adaptive Brake Lights as well as the follow-
ing driving safety systems:

ABS (A
ntilock B
rake S
ystem)


Adaptive Brake


BAS (B
rake A
ssist S
ystem)


BAS Plus* (B
rake A
ssist S
ystem Plus)


EBP (E
lectronic B
rake P
roportioning)


ESP
® (E
lectronic S
tability P
rogram)


4MATIC (Four Wheel Electronic
Traction System)


PRE-SAFE
® Brake* (Pre
ventive Occu-
pant Safe
ty Brake)
ABS
The Antilock Brake System (ABS) regulates
the brake pressure so that the wheels do
not lock during braking. This allows you to
maintain the ability to steer your vehicle.
The ABS is functional above a speed of ap-
proximately 5 mph (8 km/h) independent
of road surface conditions.
On slippery road surfaces, the ABS will re-
spond even to light brake pressure.
The - indicator lamp in the instrument
cluster (
page 28) comes on when you
switch on the ignition (
page 370). It goes
out when the engine is running.
Warning!
G
The following factors increase the risk of ac-
cidents:

Excessive speed, especially in turns


Wet and slippery road surfaces


Following another vehicle too closely
The driving safety systems described in this
section cannot reduce these risks or pre-
vent the natural laws of physics from acting
on the vehicle.
Always adapt your driving style to the pre-
vailing road and weather conditions and
keep a safe distance to other road users and
objects on the street.
i
In winter operation, the maximum effective-
ness of the ABS, Adaptive Brake, BAS,
BAS Plus*, EBP, ESP
® and 4MATIC is only
achieved with winter tires (
page 610), or snow
chains as required.
Warning!
G
Do not pump the brake pedal. Use firm,
steady brake pedal pressure instead. Pump-
ing the brake pedal defeats the purpose of
the ABS and significantly reduces braking
effectiveness.

68 Safety and SecurityDriving safety systemsBraking
At the instant one of the wheels is about to
lock up, a slight pulsation can be felt in the
brake pedal, indicating that the ABS is in
the regulating mode. 
Keep firm and steady pressure on the
brake pedal while experiencing the pul-
sation.
Continuous, steady brake pedal pressure
yields the advantages provided by the ABS,
namely braking power and the ability to
steer the vehicle.
The pulsating brake pedal can be an indica-
tion of hazardous road conditions and
functions as a reminder to take extra care
while driving.
Emergency brake maneuver

Keep continuous full pressure on the
brake pedal.For more information, see “Practical hints”
(
page 628).
Adaptive Brake
Adaptive Brake provides a high level of
braking safety as well as increased braking
comfort. It is coupled with ABS, ESP
® and
BAS. Adaptive Brake takes driver and vehi-
cle characteristics into consideration, thus
achieving an optimal braking effect.
Warning!
G
When the ABS is malfunctioning, the BAS,
BAS Plus* and ESP
® are also switched off.
When the ABS is malfunctioning, the wheels
may lock during hard braking, reducing
steering capability and extending the brak-
ing distance.
Warning!
G
The ABS cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase braking or steering efficiency
beyond that afforded by the condition of the
vehicle brakes and tires or the traction
afforded. The ABS cannot prevent acci-
dents, including those resulting from exces-
sive speed in turns, following another
vehicle too closely, or hydroplaning.
Only a safe, attentive, and skillful driver can
prevent accidents.
The capabilities of an ABS equipped vehicle
must never be exploited in a reckless or dan-
gerous manner which could jeopardize the
user’s safety or the safety of others.

69 Safety and Security
Driving safety systems
Adaptive Brake Lights (S600andS65AMG, USAonly)
The brake lamps flash in quick intervals
while you are braking in order to signal to
cars behind you that

you are braking strongly at a speed of
more than 30 mph (50 km/h)


you are braking with the aid of BAS or
BAS Plus*
If you bring the car to a complete stop by
hard braking at a speed of more than
40 mph (70 km/h), the hazard warning
flasher automatically comes on as soon as
the vehicle is at a standstill. While the vehi-
cle is stationary, the brake lamps are con-
tinuously lit up.
Once you drive faster than 6 mph
(10 km/h) afterward, the hazard warning
flasher goes out.
BAS
The Brake Assist System (BAS) operates in
emergency situations. If you apply the
brakes very quickly, the BAS automatically
provides full brake boost, thereby poten-
tially reducing the braking distance.
Apply continuous full braking pressure
until the emergency braking situation is
over.
The ABS will prevent the wheels from
locking.
When you release the brake pedal, the
brakes function again as normal. The BAS
is then deactivated.
For more information, see “Practical hints”
section (
page 628).
Warning!
G
When the BAS is malfunctioning, the brake
system is still functioning normally, but with-
out the additional brake boost available that
BAS would normally provide in an emergen-
cy braking maneuver. Therefore, the braking
distance may increase.
Warning!
G
The BAS cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase braking efficiency beyond that af-
forded by the condition of the vehicle brakes
and tires or the traction afforded. The BAS
cannot prevent accidents, including those
resulting from excessive speed in turns, fol-
lowing another vehicle too closely, or hydro-
planing. Only a safe, attentive, and skillful
driver can prevent accidents.
The capabilities of a BAS equipped vehicle
must never be exploited in a reckless or dan-
gerous manner which could jeopardize the
user’s safety or the safety of others.

70 Safety and SecurityDriving safety systemsBAS Plus*
The Brake Assist System Plus (BAS Plus)
operates in emergency braking situations
and uses radar sensors* to assess the traf-
fic situation. BAS Plus assists you in brak-
ing at speeds above approximately 20 mph
(30 km/h).
When travelling in Canada in a vehicle not
registered in Canada, you must switch off
the radar sensor system* (
page 307).
Canadian law does not permit the use of
the radar sensor system* (
page 307) for
vehicles from outside of Canada. When you
switch off the radar sensor system*, the
following functions are deactivated:


BAS Plus


DISTRONIC Plus* (
page 451)


Park Assist* (
page 476)


PRE-SAFE
® Brake* (
page 77)BAS Plus detects obstacles that are in your
driving path for a sufficient period of time
to permit the system to recognize these
obstacles. If you approach the detected
obstacle quickly, BAS Plus calculates the
level of brake power boost appropriate for
the circumstance to supply when the driv-
er applies the brakes.
i
USA only:
This device has been approved by the FCC as a
“Vehicular Radar System”. The radar sensor is
intended for use in an automotive radar system
only. Removal, tampering, or altering of the de-
vice will void any warranties, and is not permitted
by the FCC. Do not tamper with, alter, or use in
any non-approved way.
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.
Removal, tampering, or altering of the device will
void any warranties, and is not permitted. Do not
tamper with, alter, or use in any non-approved
way.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
Warning!
G
BAS Plus is a convenience system designed
to assist the driver during vehicle operation.
The responsibility for the vehicle speed and
the distance to the vehicle ahead, including
most importantly brake operation to assure
safe stopping distance, always remains with
the driver.
Always pay attention to traffic conditions
even while BAS Plus is switched on. Other-
wise, you may not be able to recognize
dangerous situations until it is too late and
could cause an accident resulting in person-
al or fatal injury to you or others.

71 Safety and Security
Driving safety systems
When you step quickly on the brake pedal
in an emergency braking situation,
BAS Plus automatically regulates the
brake power boost to a level that is suit-
able for the traffic situation.
If BAS Plus requires a particularly high
brake power boost, PRE-SAFE
® is activat-
ed at the same time.

Keep constant pressure on the brake
pedal until the emergency braking situ-
ation is over.
During this process, ABS prevents the
wheels from locking up.
The brakes will resume normal operation
after


the brake pedal is released


no obstacles are detected in your path


the system no longer senses a risk of a
collision
BAS Plus is deactivated.BAS Plus can react to stationary obstacles
such as standing or parked vehicles at
road speeds of up to approximately
40 mph (70 km/h).
BAS Plus can only assist you when the
radar sensors are switched on and func-
tional. You can check whether the sensors
are active by switching on DISTRONIC
Plus* (
page 451) or using the “Radar
Sensors” menu (
page 307) in the instru-
ment cluster control system.
After a hard collision or damage to the
front of the vehicle from an accident, have
the adjustment and operation of the radar
sensors checked by an authorized
Mercedes-Benz Center.
If BAS Plus is not available due to a radar
sensor malfunction, the braking system
will continue to function normally with full
brake boost and full standard BAS
function.
Warning!
G
BAS Plus will only respond with brake assis-
tance if it has clearly detected an object. De-
tection can be impeded by

dirty or covered sensors


snowfall or heavy rain


disturbance from other radar sources


strong radar reflection such as in park-
ing garages
BAS Plus uses radar signals that are not re-
flected well by narrow objects and absorp-
tive materials. For this reason BAS Plus will
not react to

persons and animals


approaching traffic or cross-traffic
BAS Plus may not detect narrow vehicles
driving in front of you, such as motorcycles
and vehicles driving offset from your vehicle
center.