check engine MERCEDES-BENZ S-Class 2008 W221 Comand Manual

Contents
Driving abroad .............................. 567
Control and operation of
radio transmitters......................... 567
Catalytic converter ....................... 568
Emission control........................... 568
Coolant temperature .................... 569
At the gas station............................... 570
Refueling ...................................... 570
Check regularly and
before a long trip .......................... 572
Engine compartment.......................... 573
Hood ............................................ 573
Engine oil...................................... 575
Transmission fluid level ................ 578
Active Body Control* (ABC*)
fluid level ...................................... 579
Coolant level ................................ 579
Windshield washer system and
headlamp cleaning system ........... 580
Tires and wheels ................................ 582
Important guidelines .................... 582
Tire care and maintenance ........... 583
Direction of rotation ..................... 585
Loading the vehicle ...................... 585
Recommended tire
inflation pressure ......................... 590Checking tire inflation pressure ... 592
Tire labeling.................................. 598
Load identification ....................... 601
DOT, Tire Identification Number (TIN) ..
602
Maximum tire load ....................... 603
Maximum tire inflation pressure .. 603
Uniform Tire Quality Grading
Standards (U.S. vehicles) ............. 604
Tire ply material ........................... 606
Tire and loading terminology ........ 606
Rotating tires ............................... 609
Winter driving .................................... 610
Winter tires .................................. 610
Snow chains ................................. 611
Maintenance ...................................... 612
Maintenance service
indicator message ........................ 612
Calling up the maintenance
service indicator display............... 613
Resetting the maintenance
service indicator........................... 614
Vehicle care ....................................... 615
Cleaning and care of vehicle ........ 615
Practical hints................................. 627
What to do if …? ................................ 628
Lamps in instrument cluster ........ 628
Air bag off indicator lamp............. 640
Vehicle status messages in the
multifunction display.................... 642
Where will I find ...? ........................... 705
First aid kit ................................... 705
Vehicle jack, vehicle tool kit,
luggage bowl, Minispare wheel .... 705
Unlocking/locking in an emergency .. 708
Unlocking the vehicle................... 708
Locking the vehicle ...................... 709
Resetting activated head restraints ... 710
Head restraints (standard) ........... 710
Luxury head restraints* ............... 711
Replacing SmartKey batteries ........... 712
Replacing bulbs ................................. 714
Bulbs ............................................ 715
Replacing bulbs for front lamps ... 717
Replacing wiper blades ...................... 721
Placing wiper arms in
vertical position ........................... 721
Removing wiper blades ................ 722
Installing wiper blades ................. 722

25 At a glance
Exterior view
Item
Page
1
Trunk

Unlocking


Opening and closing


Minispare wheel


Vehicle tool kit
511
511
723
705
2
Rear lamps
715
3
Rear window, defrosting
506
4
Fuel filler flap
Gasoline
570
770
5
Doors

Locking and unlocking


Opening and closing
358
358
Item
Page
6
Exterior rear view mirror
Parking position
388
391
7
Towing the vehicle
737
8
Rims and tires

Checking tire inflation
pressure


Minispare wheel


Flat tire
754
592
707
723
9
Hood, opening
Engine oil
Coolant
573
575
579
Item
Page
a
Headlamp cleaning system
403
b
Front lamps
715
c
Windshield wipers
Wiper blades, replacing
Wiper blades, cleaning
408
721
622
d
Window, cleaning
622
e
Roofs

Power tilt/sliding sunroof


Panorama roof with power
tilt/sliding panel*
518
521

48 Safety and SecurityOccupant safetyFurthermore, the occupant weight may ap-
pear to increase or decrease due to the fol-
lowing: objects hanging on the seat,
lodged underneath the seat, stuffed be-
tween the seat and middle console or the
seat and door, other passengers pushing
on the seat or objects applying pressure to
the back of the seat.
Both driver and the front passenger should
always use the 59indicator
lamp as an indication of whether or not the
front passenger is properly positioned.i
If your seat, including your trim cover and
cushion needs to be serviced in any way, take
the vehicle to an authorized Mercedes-Benz
Center.
Only seat accessories approved by
Mercedes-Benz may be used.
Warning!
G
If the 59indicator lamp illumi-
nates when an adult or someone larger than
a small individual is in the front passenger
seat, have the front passenger re-position
himself or herself in the seat until the
59indicator lamp goes out, or
check whether objects are caught under or
around the seat.
More information about air bag display mes-
sages (
page 649).
In the event of a collision, the air bag control
unit will not allow front passenger front air
bag deployment when the OCS classified
the front passenger seat occupant as being
up to or less than the weight of a typical
12-month-old child in a standard child re-
straint or if the front passenger seat is
sensed as being empty.
When the OCS senses that the front passen-
ger seat occupant is classified as being up
to or less than the weight of a typical
12-month-old child in a standard child
restraint, the 59indicator
lamp will illuminate when the engine is start-
ed and remain illuminated, indicating that
the front passenger front air bag is deacti-
vated.
When the OCS senses that the front passen-
ger seat is classified as being empty, the
59indicator lamp will illumi-
nate when the engine is started and remain
illuminated, indicating that the front
passenger front air bag is deactivated.
When the OCS senses that the front passen-
ger seat occupant is classified as being
heavier than the weight of a typical
12-month-old child seated in a standard
child restraint or as being a small individual
(such as a young teenager or a small adult),
the 59indicator lamp will illu-
minate for approximately 6 seconds when
the engine is started and then, depending on
occupant weight sensor readings from

290 Control systemsInstrument cluster control system
Telephone* (
page 299)
Assistance* (
page 303)
Service (
page 304)
Settings (
page 305)
Commands/submenusDialing a number from the
phone book
Displaying the distance graph-
ic*, DISTRONIC Plus*
Calling up vehicle malfunction,
warning and system status
messages stored in memory
Setting daytime running lamp
mode (USA only)
Redialing
Activating/deactivating
PRE-SAFE
® Brake*
(vehicles with
DISTRONIC Plus* only)
Checking tire inflation pres-
sure
Switching additional speedome-
ter on or off
Answering a call
Switching on or off Rear View
Camera* automatically
Calling up maintenance ser-
vice display
Switching on or off radar
sensors*
Ending a call or rejecting an in-
coming call
Switching on or off Blind Spot
Assist*
Checking engine oil level*

304 Control systemsInstrument cluster control systemThe following settings are available:Switching on or off Blind Spot Assist*

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

Press % or $ to select the “Blind
Spot Assist” function.

Press #.

Press # again if you would like to
change the current status.
Service menu
The “Service” menu is used for

calling up messages


checking tire inflation pressure elec-
tronically with the Advanced TPMS


calling up the maintenance service in-
dicator display


check engine oil level*
Calling up vehicle malfunction, warning
and system status messages stored in
memory
Use the vehicle status message memory
menu to scan malfunction and warning
messages that may be stored in the sys-
tem. Such messages appear in the multi-
function display and are based on
conditions or system status the vehicle’s
system has recorded.
“On when in
Reverse”
The Rear View Camera au-
tomatically switches on
when reverse gear is en-
gaged.
“Disabled”
The Rear View Camera is
not switched on.
i
The menu overview can be found on
(
page 289).


305 Control systems
Instrument cluster control system
The vehicle status message memory menu
only appears if there are any messages
stored.
Press ( or & to select the
“Service” menu.If conditions have occurred causing
status messages to be recorded, the
number of messages appears in the
multifunction display: “2 messages”.

Press % or $ to select the mes-
sage.

Press # to confirm.
Checking tire inflation pressure
For information about checking tire infla-
tion pressure (
page 593).Calling up the maintenance service in-
dicator display
For information about calling up the main-
tenance service indicator display
(
page 612).
Checking engine oil level (S 600 and
S65AMG)
For information about checking engine oil
level (
page 575).
Settings menu
In the “Settings” menu, you can:

switch the daytime running lamps on or
off (USA only)


switch the additional speedometer on
or off


switch the radar sensors* on or off
(USA only)
Warning!
G
Malfunction and warning messages are only
indicated for certain systems and are inten-
tionally not very detailed. The malfunction
and warning messages are simply a remind-
er with respect to the operation of certain
systems and do not replace the owner’s
and/or driver’s responsibility to maintain
the vehicle’s operating safety by having all
required maintenance and safety checks
performed on the vehicle and by bringing
the vehicle to an authorized Mercedes-Benz
Center to address the malfunction and
warning messages (
page 642).
i
See the “Practical hints” section for mal-
function and warning messages (
page 642).
i
If you turn the SmartKey in the starter
switch to position0 and then back to position2,
all messages will be deleted from the message
memory.
i
The menu overview can be found on
(
page 289).

361 Controls in detail
Locking and unlocking

Restoring to factory setting: Press
and hold buttonsŒ and‹ si-
multaneously for about 5 seconds until
battery check lamp5 (
page 358)
flashes twice.
SmartKey with KEYLESS-GO*
Vehicles equipped with KEYLESS-GO come
with two SmartKeys with KEYLESS-GO,
each with remote control and a removable
mechanical key.
The KEYLESS-GO function is integrated
into the SmartKey. On these vehicles, the
validity of the SmartKey with KEYLESS-GO
is checked every time you grasp an outside
door handle.
With the KEYLESS-GO function, you can
lock and unlock the vehicle without using
the remote control buttons on the
SmartKey and start the engine without in-
serting the SmartKey in the starter switch.The SmartKey with KEYLESS-GO centrally
locks and unlocks, when set to factory set-
tings (
page 364):


the doors


the trunk


the fuel filler flap
SmartKey with KEYLESS-GO1‹ Lock button
2ŠOpening button for trunk
(
page 511)
3Locking tab for mechanical key
4ΠUnlock button
5Battery check lamp
6ÂPanic button (
page 66)
i
When any outside door handle other than
the driver’s outside door handle is grasped, the
vehicle is centrally unlocked.
!
To prevent possible malfunction, avoid ex-
posing the SmartKey with KEYLESS-GO to high
levels of electromagnetic radiation.
Warning!
G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO* 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.
Children could start the vehicle with a valid
SmartKey with KEYLESS-GO left in the vehi-
cle or with the KEYLESS-GO button on the
starter switch, or could release the electron-
ic parking brake, thereby putting them-
selves and others in danger. Switch off the
engine and take the SmartKey with
KEYLESS-GO with you even if you are only
leaving the vehicle for a short while.

370 Controls in detailStarter switch positionsSmartKeyStarter switch
0For removing SmartKey
1Power supply for some electrical con-
sumers
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 628).
3Starting positionFor information on starting the engine us-
ing the SmartKey, see “Starting with the
SmartKey” (
page 417).
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.
i
When 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.
i
When the SmartKey is removed from the
starter switch and the automatic transmission is
in a position other than park positionP, the auto-
matic transmission automatically shifts to park
positionP.
!
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 729).


Have the vehicle jump-started (
page 734).
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.

372 Controls in detailStarter switch positionsThe SmartKey with KEYLESS-GO must be
located in the vehicle.
Make sure the automatic transmission
is set to park positionP.

Do not depress the brake pedal.
KEYLESS-GO start/stop button1USA only
2Canada only
Position 0
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have status 0 (as with
SmartKey removed).Position 1

Press the KEYLESS-GO start/stop but-
ton once.
This supplies power for some electrical
consumers.
Ignition (or position 2)

Press the KEYLESS-GO start/stop but-
ton twice.
This supplies power for all electrical
consumers.
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 628).
For information on starting the engine us-
ing the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
page 417).
i
If you now press the KEYLESS-GO
start/stop button


once again, the ignition (position2) is
switched on


twice, the power supply is again switched off
i
If you now press the KEYLESS-GO
start/stop button once, the power supply is
again switched off.
i
When 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.


408 Controls in detailWindshield wipersCombination switch1Switching on windshield wipers
2Single wipe
Wiping with windshield washer fluid

Switch on the ignition (
page 370).
Switching on/off windshield wipers
Turn the combination switch to the
desired position depending on the
intensity of the rain.
MWindshield wipers off
USlow intermittent wiping
(rain sensor operation with low
sensitivity)
VFast intermittent wiping
(rain sensor operation with high
sensitivity)
uSlow continuous wiping
tFast continuous wiping
!
If the windshield wipers leave smears on the
windshield after the car has been driven through
an automatic car wash, then wax or other resi-
due is on the windshield. Shortly after washing
the car in an automatic car wash, clean the wind-
shield with windshield washer fluid
(
page 409).
!
Do not operate the windshield wipers when
the windshield is dry. Dust that accumulates on
a windshield might scratch the glass and/or
damage the wiper blades when wiping occurs on
a dry windshield. If it is necessary to operate the
windshield wipers in dry weather conditions, al-
ways operate the windshield wipers with wind-
shield washer fluid (
page 409).
!
If anything blocks the windshield wipers
(leaves, snow, etc.), switch them off immediate-
ly.


For safety reasons, stop the vehicle in a safe
location and,

remove SmartKey from starter switch
or


turn off the engine by pressing the
KEYLESS-GO* start/stop button
(page 372) and open the driver’s door
(with the driver’s door open, starter
switch is in position0, same as with
SmartKey removed from starter switch)
before attempting to remove any blockage.


Remove blockage.


Turn the windshield wipers on again.If the windshield wipers fail to function at all in
the combination switch position U or V,


set the combination switch to the next
higher wiper speed


have the windshield wipers checked at the
nearest authorized Mercedes-Benz Center