Page 336 of 473

335 Operation
Tires and wheels
Rotating tires
Tire rotation can be performed on vehicles
with tires of the same dimension all
around. If your vehicle is equipped with
tires of the same dimension all around,
tires can be rotated, observing a a
front-to-rear rotation pattern that will
maintain the intended rotation (spinning)
direction of the tire (
page 308).
In some cases, such as when your vehicle
is equipped with mixed-size tires (different
tire dimension front vs. rear), tire rotation
is not possible.If applicable to your vehicle’s tire configu-
ration, tires can be rotated according to
the tire manufacturer’s recommended in-
tervals in the tire manufacturer’s warranty
pamphlet located in your vehicle literature
portfolio. If none is available, tires should
be rotated every 3 000 to 6 000 miles
(5 000 to 10 000 km), or sooner if neces-
sary, according to the degree of tire wear.
The same rotation (spinning) direction
must be maintained (
page 308).
Rotate tires before the characteristic tire
wear pattern becomes visible (shoulder
wear on front tires and tread center wear
on rear tires).
Thoroughly clean the mounting face of
wheels and brake disks, i.e. the inner side
of the wheels/tires, during each rotation.
Check for and ensure proper tire inflation
pressure.For information on wheel change, see the
“Practical hints” section (
page 380) and
(
page 404).
Warning!G
Rotate front and rear wheels only if the tires
are of the same dimension.
If your vehicle is equipped with mixed-size
tires (different tire dimensions front vs.
rear), tire rotation is not possible.
Warning!G
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
80 lb-ft (110 Nm).
Only use genuine Mercedes-Benz wheel
bolts specified for your vehicle’s rims.
Page 411 of 473
410 Practical hints
Flat tire
Lowering the vehicle
Lower vehicle by turning crank
counterclockwise until vehicle is
resting fully on its own weight.
Remove the jack.1 - 5Wheel bolts
Tighten the five wheel bolts evenly,
following the diagonal sequence
illustrated (1to5), until all bolts are
tight. Observe a tightening torque
of 80 lb-ft (110 Nm).Before storing the jack, it should be fully
collapsed, with handle folded in (storage
position) (
page 381).
Store the jack and the other vehicle
tools in the trunk.
Warning!G
Inflate collapsible tire only after the wheel is
properly mounted.
Inflate the collapsible tire using the electric
pump (
page 408) before lowering the ve-
hicle.
Warning!G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque
of 80 lb-ft (110 Nm).
Page 429 of 473
428 Technical data
Engine
ModelC 55 AMG (203.076)1
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special
bodies and special equipment.
Engine113
Mode of operation4-stroke engine, gasoline injection
No. of cylinders8
Bore3.82 in (97.00 mm)
Stroke3.60 in (92.00 mm)
Total piston displacement331.8 cu in (5 439 cm3)
Compression ratio11:1
Output acc. to SAE J 1349362 hp/5 750 rpm2
(270 kW/5 750 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
Maximum torque acc. to SAE J 1349376 lb-ft/4 000 rpm
(510 Nm/4 000 rpm)
Maximum engine speed6 700 rpm
Firing order1-5-4-2-6-3-7-8
Poly-V-belt2 380 mm
Page 435 of 473
434 Technical data
Electrical system
ModelC55AMG
Generator (alternator)14 V/150 A
Starter motor14 V/1.7 kW
Battery12 V/100 Ah
Spark plugsNGK ILFR 6 A
Electrode gap0.031 in (0.8 mm)
Tightening torque18–22lb-ft (25–30Nm)
Page 447 of 473

446 Technical terms
Maintenance System (U.S. vehicles)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. The Maintenance
System in your vehicle tracks distance
driven and the time elapsed since your
last maintenance service, and calls for
the next maintenance service accord-
ingly.
Maximum load rating
(
page 332)
Maximum loaded vehicle weight
(
page 332)
Maximum tire inflation pressure
(
page 333)
Memory function
Used to store three individual seat,
steering wheel and mirror positions.MON
(M
otor Octane Number)
The Motor Octane Number for gasoline
as determined by a standardized
method. It is an indication of a
gasoline’s ability to resist undesired
detonation (knocking). The average of
both the MON (Motor Octane Number)
and ->RON (Research Octane Number)
is posted at the pump, also known as
ANTI-KNOCK INDEX.
Multifunction display
Display field in the instrument cluster
used to present information provided
by the control system.
Multifunction steering wheel
Steering wheel with buttons for
operating the control system.
Normal occupant weight
(
page 333)Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this
engine speed range, as it may result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all
components used to generate and
transmit motive power to the drive
axles, including
engine
clutch/torque converter
transmission
transfer case
drive shaft
differential
axle shafts/axles
Page 449 of 473
448 Technical terms
Telematics*
A combination of the terms “tele-
communications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
TIN
(T
ire Identification Number)
(
page 333)
Tire load rating
(
page 334)
Tire ply composition and material used
(
page 334)Tire speed rating
(
page 334)
Traction
(
page 334)
Tread
(
page 334)
Treadwear indicators
(
page 334)
Uniform Tire Quality Grading Standards
(
page 334)
Vehicle capacity weight
(
page 334)
Vehicle maximum load on the tire
(
page 334)VIN
(V
ehicle Identification Number)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.
Page 464 of 473

463 Index
Sun visors 171
Sunshade* 172
Supplemental Restraint System see SRS
Symbols used in this operator’s
manual 15
T
Tachometer 25, 124
Overspeed range 124
Tail lamps
Cleaning 344
Messages in display 376
Replacing bulbs 396, 400
Tar stains 342
Technical data
Air conditioning refrigerant 437
Brake fluid 437
Coolant 436, 439
Electrical system 434
Engine 428
Engine oil additives 437
Engine oils 437
Fuel requirements 439
Fuels 436
Fuels, coolants, lubricants, etc 436
Gasoline additives 438
Lubricants 436Premium unleaded gasoline 438
Rims and tires 429
Weights 435
Windshield washer 436
Windshield washer and headlamp
cleaning* system 436, 442
Tele Aid* 264, 265, 271
Emergency calls 266
Hands-free microphone 29
Information 270
Initiating an emergency call
manually 267
Message in display 379
Remote door unlock 272
Roadside Assistance 268
SOS button 267
Stolen Vehicle Recovery
services 272
System self-check 266
Telematics* 448Telephone* 26, 263
Answering/ending a call 153
Hands-free microphone 29
Message in display 379
Operation 152, 223
Phone book 153
Redialing 154
Temperature
Display mode 130
Interior temperature 178
Temperature, Tires 316
Tether attachment points, see
Children in the vehicle
Tie-down rings*, Trunk 255
Tightening torque, Wheel bolts 410, 448
Tilt/sliding sunroof see Power tilt/sliding
sunroof
Time 140
TIN 333
Tire and Loading Information
Placard 309
Tire and loading Information
Terminology 331
Page 466 of 473

465 Index
V
Vacuum line routing diagram label 426
Valet locking 103
Vehicle
Battery 411
Breaking-in the vehicle 282
Care 341
Dimensions 435
Individual settings 135, 137
Locking/unlocking 104
Locking/unlocking in an
emergency 386, 387
Lowering 410
Modifications and alterations,
Operating safety 16
Towing 417
Washing 342, 343
Weights 435
Vehicle capacity weight 334
Vehicle Identification Number see VIN
Vehicle jack 381Vehicle loading
Cargo tie-down rings* 255
Instructions 254, 308
Load limit 435
Roof rack* 248
Split rear bench seat* 252
Terminology 331
Vehicle maximum load on the tire 334
Vehicle recovery services, Stolen
(Tele Aid*) 264
Vehicle status message memory 134
Vehicle tool kit 380
Removing 380
VIN 426, 448
Voice control system*,
Hands-free microphone 29
W
Warning lamps see Lamps, indicator and
warning
Warning sounds
Driver or front passenger seat belt 69
Parking brake 47
Seat belt telltale 355
Warranty coverage 10, 425
Washer fluid see Windshield washer fluid
Washer reservoir level 295Washing the vehicle 341
Wear pattern (tires) 335
Weights, Vehicle 435
Wheel
Bolts 385
Removing 406
Spare 383, 433
Tightening torque 410
Wheels, Tires 305
Window curtain air bags 66
Windows see Power windows
Windshield
Cleaning 345
Defogging 180, 191
Replacing wiper blades 402
Washer fluid 304, 442
Washer system 442
Windshield washer fluid 442
Message in display 379
Mixing ratio 442
Refilling 304
Wiping with 51
Windshield washer system 442
Windshield wipers 50
Cleaning 345
Replacing wiper blades 402