belt MERCEDES-BENZ S-Class 2008 W221 Comand Manual

678 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
The battery is no longer charging.
Possible causes:

alternator malfunctioning


broken poly-V-belt

Stop the vehicle immediately in a safe loca-
tion.

Engage the electronic parking brake
(page 422).

Check the poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise the en-
gine will overheat due to an inoperative water
pump which may result in damage to the en-
gine.

Notify an authorized Mercedes-Benz Center.
If it is intact:

Drive immediately to the nearest authorized
Mercedes-Benz Center.
There is a malfunction in the electronic
system.

Have the system checked by an authorized
Mercedes-Benz Center as soon as possible.

681 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Coolant Low
Stop Vehicle
Turn Engine Off
The poly-V-belt could be broken.

Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn off
the engine.

Engage the electronic parking brake
(page 422).

Check the poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise the en-
gine will overheat due to an inoperative water
pump which may result in damage to the en-
gine.

Notify an authorized Mercedes-Benz Center.
If it is intact:

Do not continue to drive the vehicle with this
message displayed. Doing so could result in
serious engine damage that is not covered by
the Mercedes-Benz Limited Warranty.

Observe the coolant temperature gauge in
the instrument cluster (
page 28).
(Continued on next page)

745 Technical data
Parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main dimensions and weights
Fuels, coolants, lubricants, etc.

750 Technical dataLayout of poly-V-belt driveS 450 4MATIC
1, S 550 and
S 550 4MATIC
1Idler pulley
2Idler pulley
3Automatic belt tensioner
4Pump for power-steering assistance
Vehicles with ABC*: ABC* tandem
pump (pump for power-steering assis-
tance and ABC* chassis)
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)
S63 AMG
1Idler pulley
2Idler pulley
3Idler pulley
4Automatic belt tensioner
5Pump for power-steering assistance
6Air conditioning compressor
7Crankshaft
8Coolant pump
9Generator (alternator)
S 600 and S 65 AMG
1Automatic belt tensioner
2ABC tandem pump (pump for
power-steering assistance and ABC
chassis)
3Air conditioning compressor
4Crankshaft
5Coolant pump
6Generator (alternator)
7Idler pulley
8Idler pulley
9Idler pulley
1Canada only

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

753 Technical data
Engine
Model
S 63 AMG (221.077)
1
S 65 AMG (221.179)
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
156
275
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
8
12
Bore
4.02 in (102.20 mm)
3.25 in (82.60 mm)
Stroke
3.72 in (94.60 mm)
3.66 in (93.00 mm)
Total piston displacement
378.8 cu in (6 208 cm
3)
364.9 cu in (5 980 cm
3)
Compression ratio
11.3:1
9:1
Output acc. to SAE J 1349
2
2Premium fuel required. Performance may vary with fuel octane rating.
518 hp/6 800 rpm
(386 kW/6 800 rpm)
603 hp/4 800 - 5 100 rpm
(450 kW/4 800 - 5 100 rpm)
Maximum torque
acc. to SAE J 1349
465 lb-ft/5 200 rpm
(630 Nm/5 200 rpm)
738 lb-ft/2 000 - 4 000 rpm
(1 000 Nm/2 000 - 4 000 rpm)
Maximum engine speed
7 200 rpm
5950 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
2360 mm
2370 mm

781 Index
Setting the audio format
(COMAND) 128
Video (COMAND) 132
E
Easy-entry/exit feature 384
COMAND menu 268
EBP 72
Electrical fuses see Fuses
Electrical outlet see Power outlet
Electrical system, Technical Data 760
Electronic Brake Proportioning see EBP
Electronic parking brake 422
Indicator lamp 29, 630
Messages in display 667
Warning lamp 29, 630
Electronic Stability Program see ESP
®
Electronic traction system 73
Emergency call system 542
Emergency calls, Tele Aid 544
Emergency engine shut-down 744
Emergency operation
(Limp-Home Mode) 443
Emergency operations
Locking the vehicle 708
Releasing from inside 516
Remote door lock 550Remote door unlock 549
Unlocking the trunk 709
Unlocking the vehicle 708
Emergency tensioning device see ETD
Emergency, In case of
Battery, Jump starting 734
First aid kit 705
Flat tire 723
Fuses 741
Roadside Assistance 15
Roadside Assistance (Tele Aid) 546
Towing the vehicle 737
Emission control 568
Emission control information label 749
Emission control system warranties 14
Engine
Belt layout 750
Cleaning 617
Compartment 573
Coolant 579, 767, 771
Malfunction indicator lamp 29, 632
Number 748, 749
Oil 578, 765, 769
Oils 575
Residual heat and ventilation 509
Starting 416Technical data 751
Turning off 424
Engine coolant see Coolant
Engine oil 575
Adding 578
Additives 769
Checking level 575
Checking level (Dipstick) 577
Checking level (Instrument cluster
control system) 575
Consumption 575
Dipstick 577
Filler neck 577, 578
Messages in display 576, 694
Recommended engine oils and
oil filters 765
ESP
®Four wheel electronic traction system
with ESP
®
76
ESP
®
72
Messages in display 662, 673
Warning lamp 29, 629, 634
ETD 55
Safety guidelines 44

786 Index
ESP
®
29, 629, 634
Front passenger front air bag off 51,
640
High beam headlamp 29
Maintenance service indicator 612
Park Assist* 29
Parktronic* 29
Seat belt telltale 29, 635
SRS 29, 637
TPMS malfunction telltale 638
TPMS* malfunction telltale 29
Turn signals 29
Language (COMAND) 262
LATCH-type child seat anchors see
Children in the vehicle
Lever
For automatic transmission
(gear selector lever) 426
For cruise control 447
For DISTRONIC Plus* 457
License plate lamps
Messages in display 689
Replacing bulbs 715
Light alloy wheels, Cleaning 623
Light sensor
Message in display 688Lighter see Cigarette lighter
Lighting 399
Automatic headlamp mode 400
COMAND display illumination 89
Corner-illuminating lamps 404
Daytime running lamp mode 401
Door entry lamps 407
High beam flasher 403
Instrument cluster illumination 444,
492
Interior 406
Low beam headlamps 400
Manual headlamp mode 400
Trunk 407
Limp-Home Mode 443
Loading see Vehicle loading
Locator lighting (COMAND) 265
Lock button
Door handle (KEYLESS-GO*) 364,
415
Key, SmartKey 358
Key, SmartKey with
KEYLESS-GO* 361
Locking 421
Automatic central locking
(COMAND) 267Vehicle in an emergency 709
Locking knob 367
Loss of
Key, Mechanical 366
Key, SmartKey 366
Key, SmartKey with
KEYLESS-GO* 366
Service and Warranty Information
Booklet 747
Low beam headlamps 400
Replacing bulbs 715
Lowering
Vehicle 727
Lubricants 764
Lumbar support (COMAND) 283

789 Index
O
Occupant Classification System see OCS
Occupant distribution 607
Occupant safety 40
Air bags 42
Children and air bags 58
Children in the vehicle 58
Fastening the seat belt 395
Front passenger front air bag off
indicator lamp 51
Infant and child restraint systems 59
LATCH-type child seat anchors 63
Seat belts 44, 395
OCS 47
Self-test 52
Odometer 291
Oil
Filler neck 578
Oil level see Engine oil
One-touch gearshifting 438
Operating safety 19
Voice Control 308
Ornamental moldings, Cleaning 618
Outside temperature indicator 29, 445
Overdue maintenance service 613
Overhead control panel 33Override switch 64
P
Paintwork, Cleaning 616
Panic alarm
Audible alarm and flashing
exterior lamps 66
Panic button 66
Panorama roof with power tilt/sliding
panel* 521
Opening/closing 522
Synchronizing 524
Panorama roof with tilt/sliding panel*
Cleaning 623
Parcel net in front passenger
footwell 528
Park Assist* 476
Cleaning system sensors 620
Messages in display 653, 655
System sensors 620
Warning indicators 29, 479
Parking 421, 562
Parking and standing lamps
Replacing bulbs 715
Parking lamps
Messages in display 690Parking position
Exterior rear view mirrors 391
Parktronic system* 472
Parktronic*
Cleaning system sensors 619
Malfunctioning 476
System sensors 619
Warning indicators 29, 474
Parts service 746
PASS AIR BAG OFF indicator lamp see
Front passenger front air bag off
indicator lamp
Passenger compartment 567
Passenger safety see Occupant safety
PCMCIA card
Ejecting (COMAND) 122
Loading (COMAND) 121
Pedals 559
Plastic parts, cleaning 624
POIs 229
Poly-V-belt drive 750
Layout 750
Potential problems associated with
underinflated and overinflated
tires 597
Power assistance 559