check engine light MERCEDES-BENZ S550 4MATIC 2008 W221 Owner's Manual

Contents
Controls in detail............................. 331
Locking and unlocking ....................... 332
SmartKey ..................................... 332
SmartKey with KEYLESS-GO*....... 335
Checking batteries in the
SmartKey or SmartKey with
KEYLESS-GO*............................... 340
Loss of the SmartKey or
SmartKey with KEYLESS-GO*....... 340
Opening doors from the inside ..... 341
Power closing assist for doors
and trunk lid ................................. 342
Automatic central locking ............ 342
Locking and unlocking from
the inside ..................................... 343
Starter switch positions ..................... 344
SmartKey ..................................... 344
SmartKey with KEYLESS-GO*....... 345
Seats.................................................. 347
Seat adjustment ........................... 347
Seat heating* ............................... 351
Seat ventilation* .......................... 352
Head restraints............................. 353
Multicontour seats*, rear ............. 356
Easy-entry/exit feature ................ 357Steering wheel ................................... 359
Steering wheel adjustment .......... 359
Heated steering wheel* ............... 360
Mirrors ............................................... 361
Interior rear view mirror ............... 361
Exterior rear view mirrors............. 361
Power folding exterior
rear view mirrors .......................... 362
Auto-dimming rear view mirrors ... 363
Activating exterior rear view
mirror parking position................. 364
Memory function ............................... 365
Storing positions into memory ..... 366
Recalling positions from memory . 366
Storing exterior rear view mirror
parking position ........................... 367
Fastening the seat belts .................... 368
Proper use of seat belts ............... 370
Seat belt height adjustment ......... 370
Lighting.............................................. 371
Exterior lamp switch..................... 371
Switching on high beams ............. 375
Headlamp cleaning system .......... 375
Corner-illuminating lamps ............ 376
Hazard warning flasher ................ 377
Interior lighting............................. 378Door entry lamps ......................... 379
Courtesy lighting .......................... 380
Trunk lamp ................................... 380
Windshield wipers ............................. 381
Switching on/off
windshield wipers ........................ 381
Intermittent wiping ...................... 382
Single wipe .................................. 382
Wiping with windshield washer
fluid.............................................. 382
Power windows ................................. 383
Opening and closing
power windows ............................ 383
Rear side window sunshades* ..... 385
Summer opening feature ............. 385
Convenience closing feature ........ 386
Driving and parking ........................... 389
Starting the engine ...................... 389
Driving off .................................... 392
Turn signals.................................. 393
Problems while driving ................. 393
Parking......................................... 394
Turning off the engine .................. 397
Releasing seat belts ..................... 398
Automatic transmission..................... 399
Gear selector lever....................... 399

506 Controls in detail
Useful features
Power outlet
The power outlet is located in the rear cen-
ter console.
Switch on the ignition (page 344).
Flip up cover1 and insert electrical
plug (cigarette lighter type).
Floormats*
1Retainer pin
2Eyelet
Removing
Pull floormat off of retainer pins1.
Remove the floormat.
Installing
Lay down the floormat in the respective
footwell.
Press the floormat eyelets2 onto re-
tainer pins1.
iThe power outlet can be used to
accommodate 12V DC electrical accessories
(e.g. air pump, auxiliary lamps) up to a maximum
of 180 W.
If the engine is off and the outlet is being used
extensively, the vehicle battery may become dis-
charged.
Warning!G
Whenever you are using floormats, make
sure there is enough clearance and that the
floormats are securely fastened.
Floormats should always be securely fas-
tened using the eyelets and the retainer
pins.
Before driving off, check that the floormats
are securely in place and adjust them if nec-
essary. A loose floormat could slip and
hinder proper functioning of the pedals.
Do not place several floormats on top of
each other as this may impair pedal move-
ment.
iTo install or remove the floormat more easi-
ly, move the driver’s seat or front passenger seat
as far to the rear as possible (
page 347).

540 Operation
At the gas station
Check regularly and before a long trip
Example illustration from S 550
1Coolant level
2Brake fluid
3Windshield washer and headlamp
cleaning systemWindshield washer system and head-
lamp cleaning system
For more information on refilling the wash-
er reservoir, see “Windshield washer sys-
tem and headlamp cleaning system”
(
page 548).
Coolant
For more information on coolant, see
“Coolant level” (
page 547) and see “Fu-
els, coolants, lubricants, etc.”
(
page 724).
Brake fluid
For information on brake fluid, see “Brake
fluid” (
page 728).Engine oil level
For more information on engine oil, see
“Engine oil” (
page 543).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (
page 678).
For more information, see “Lighting”
(
page 371).
Tire inflation pressure
For information on tire inflation pressure,
see “Checking tire inflation pressure”
(
page 560).
iOpening the hood (page 541).
!If you find that the brake fluid in the brake
fluid reservoir has fallen to the minimum mark or
below, have the brake system checked for brake
pad thickness and leaks immediately. Notify an
authorized Mercedes-Benz Center immediately.
Do not add brake fluid as this will not solve the
problem. For more information, see “Practical
hints” (
page 601) and (page 630).

659 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Night View Assist
Lights ON or AUTO,
not in R gearYou have tried to switch on Night View As-
sist* but the light switch is not set to *
or B.
In addition, the automatic transmission is in
positionR.Turn the exterior lamp switch to * or
B (
page 371).
Shift the automatic transmission to P, N or D
(
page 399).
Night View Assist
only when
it is darkYou have tried to switch on Night View As-
sist* by daylight.You can only switch on Night View Assist* when
it is dark.
Engine oil level
Stop vehicle!
Switch engine offS 600 and S 65 AMG only:
There is no oil in the engine. There is a dan-
ger of engine damage.Carefully bring the vehicle to a halt as soon
as it is safe to do so in a safe location.
Engage the electronic parking brake
(
page 395).
Turn off the engine.
Add engine oil (page 546) and check the
engine oil level (
page 543).

742 Index
Engine coolant see Coolant
Engine oil 543
Adding 546
Additives 728
Checking level 543
Checking level (Dipstick) 545
Checking level (Instrument cluster con-
trol system) 543
Consumption 543
Dipstick 545
Filler neck 545, 546
Messages in display 544, 659
Recommended engine oils and oil
filters 724
ESP
®
Four wheel electronic traction system
with ESP®75
ESP®71
Messages in display 628, 639
Warning lamp 29, 599, 604ETD 55
Safety guidelines 44
Exterior lighting
Delayed switch-off (COMAND) 242
Locator lighting (COMAND) 243
Exterior rear view mirrors
Adjusting 361
Auto-dimming on the driver’s
side 363
Fold in automatically when locking
(COMAND) 244
Lower mirror when reversing
(COMAND) 244
Power folding 362
F
Favorite button 238
First aid kit 668
Flat tire 686
Jacking up the vehicle 687
Lowering the vehicle 690
Mounting the spare wheel 686
Preparing the vehicle 686
Floormats* 506Fluids
Automatic transmission fluid 724
Brake fluid 725, 728
Capacities 724
Engine coolant 547, 726, 730
Engine oil 546, 724, 728
Power steering fluid 725
Windshield washer and headlamp
cleaning system 727, 733
Fog lamps
Messages in display 656
Replacing bulbs 679
Four wheel electronic traction system with
ESP
® see 4MATIC
4MATIC 75
Front air bags 45
Front lamps
Replacing bulbs 679, 680
Front lamps see headlamps
Front passenger front air bag 45
Messages in display 618
Front passenger front air bag off indicator
lamp 50, 610

745 Index
J
Jack 669, 687
Jacking up the vehicle 687
Jump starting 697
K
Key, Mechanical 671
Loss of 340
Key, SmartKey 332
Battery check lamp 332, 334
Factory setting 333
Global locking and unlocking 333
Lock button 332
Locking and unlocking 332
Loss of 340
Messages in display 651
Opening button for trunk 332
Panic button 65
Remote control 332
Restoring to factory setting 334
Selective setting 334
Starting the engine 390
Switching on ignition with 344
Turning off engine 397
Unlock button 332Key, SmartKey with KEYLESS-GO* 335
Battery check lamp 335, 339
Closing, Trunk 479
Factory setting 338
Global locking and unlocking 338
Important notes on using
KEYLESS-GO* 336
Lock button 335
Locking and unlocking 335
Loss of 340
Messages in display 650
Opening button for trunk 335
Panic button 65
Remote control 335
Restoring to factory setting 340
Selective setting 339
Starting the engine 390
Switching on ignition with 346
Turning off engine 398
Unlock button 335
Kickdown 406
Kilopascal 577L
Labels 712
Certification 712
Emission control information 713
Tire and Loading Information 554
Vacuum line routing diagram 713
Lamp bulbs, exterior 678
Lamps, exterior
Front 679
Light sensor 654
Rear 679
Lamps, indicator and warning
ABS 29, 66, 598
Air bag Off 46
Battery check lamp (SmartKey with
KEYLESS-GO* 339
Battery check lamp (SmartKey) 334
Brake warning lamp 29
Brakes 599
Combination low tire pressure* mal-
function telltale 29, 608
Distance warning lamp* 29, 604
DISTRONIC Plus* 29, 427, 604
Electronic parking brake 29, 600
Engine diagnostics 29, 602
Engine malfunction 29, 602