2006 MERCEDES-BENZ C55AMG engine

418 Practical hints
Towing the vehicle
Warning!G
If circumstances require towing the vehicle
with all wheels on the ground, always tow
with a tow bar if:

the engine will not run

there is a malfunction in the power
supply or in the vehicle’s electrical
system
as that will be necessary to adequately
control the towed vehicle.
Prior to towing the vehicle with all wheels on
the ground, make sure the SmartKey is in
starter switch position2.
If the SmartKey is left in starter switch
position0 for an extended period of time, it
can no longer be turned in the switch. In this
case, the steering is locked. To unlock,
remove SmartKey from starter switch and
reinsert.
i
To signal turns while being towed with
the hazard warning flasher in use,
switch on the ignition and activate the
combination switch for the left or right
turn signal in the usual manner – only
the selected turn signal will operate.
Upon canceling the turn signal, the
hazard warning flasher will operate
again.
Warning!G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle. Adapt your driving accordingly.
!
When towing the vehicle with all wheels
on the ground, please note the
following:
With the automatic central locking
activated and the SmartKey in starter
switch position2, the vehicle doors
lock if the left front wheel as well as the
right rear wheel are turning at vehicle
speeds of approx. 9 mph (15 km/h) or
more.
Switch off the tow-away alarm*
(
page 90).
To prevent the vehicle doors from
locking, deactivate the automatic
central locking (
page 147).
Towing of the vehicle should only be
done using the properly installed
towing eye bolt. Never attach tow
cable, tow rope or tow rod to vehicle
chassis, frame or suspension parts.

420 Practical hints
Fuses
Fuses are designed to protect the electri-
cal circuits in your vehicle from a short cir-
cuit. If a fuse is blown, the component(s)
and systems secured by that fuse will stop
operating.
The following aids are available to help you
replace fuses (
page 420):

Fuse chart

Spare fuses

Fuse extractor
The electrical fuses are located in different
fuse boxes:

Main fuse box in passenger
compartment (
page 421)

Fuse box in engine compartment
(
page 421)

Fuse box in trunk (page 422)
Aids for replacing fuses
Fuse chart
The fuse chart is located in the main fuse
box in the passenger compartment
(
page 421). The amperages of the fuses
are also given there.
Spare fuses
Spare fuses are located in the vehicle tool
kit in the trunk (
page 380).
Fuse extractor
The fuse extractor is located in the fuse
box cover in the trunk (
page 422).
Warning!G
Only use fuses approved by Mercedes-Benz
with the specified amperage for the system
in question. Using other fuses may cause an
overload leading to a fire, and/or cause
damage to electrical components and/or
systems.
!
Never attempt to repair or bridge a
blown fuse. Have the cause determined
and remedied by an authorized
Mercedes-Benz Center.
!
Keep the fuse boxes free by contamina-
tion and wetness. Otherwise, electrical
parts or systems could be damaged.

421 Practical hints
Fuses
Main fuse box in passenger
compartment
The main fuse box is located in the passen-
ger compartment on the driver’s side of
the cockpit.
1Main fuse box cover
Opening fuse box
Open the driver’s door.
Pull fuse box cover1 open with a
screw driver or similar tool (see arrow).
Remove fuse box cover1 rearward.Closing fuse box
Attach fuse box cover1 in the front.
Fold fuse box cover1 in until it
engages.
Fuse box in engine compartment
The fuse box is located in the engine
compartment on the driver’s side.
1Cover
2Screws
3RetainerRemoving cover
Twist screws2
90° counterclockwise.
Lift the rear of cover1.
Slide out retainer3 and remove
cover1 by pulling towards front.
Opening fuse box
4Fuse box cover
5Clamps
With a dry cloth, remove any moisture
from the fuse box.
Release clamps5.
Remove fuse box cover4.

423 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.

426 Technical data
Identification labels
1Certification label
(includes Paintwork code)2Vehicle Identification Number (VIN)3Vacuum line routing diagram label
4Engine number (engraved on engine)
5VIN, visible (lower edge of windshield)
6Emission control information label,
includes both federal and California
certification exhaust emission
standards
i
When ordering parts, please specify
vehicle identification and engine num-
bers.

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

436 Technical data
Fuels, coolants, lubricants, etc.
Capacities
Vehicle components and their respectivelubricants must match. Therefore only use
products tested and approved by
Mercedes-Benz. Please refer to the Factory Approved
Service Products pamphlet, or inquire at
your Mercedes-Benz Center.
CapacityFuels, coolants, lubricants, etc.
Engine with oil filter9.0 US qt (8.5 l)Approved engine oils
Automatic transmission9.3 US qt (8.7 l)MB Automatic Transmission Fluid
Rear axle1.5 US qt (1.4 l)Hypoid gear oil SAE 85 W 90
Power steeringapprox. 1.1 US qt (1.0 l)MB Power Steering Fluid (Pentosin CHF 11S)
Front wheel hubsapprox. 2.1 oz (60 g) eachHigh temperature roller bearing grease
Brake system0.5 US qt (0.5 l)MB Brake Fluid (DOT 4+)
Cooling systemapprox. 12.8 US qt (12.0 l)MB 325.0 Anticorrosion/antifreeze agent
Fuel tank
including
a reserve of16.4 US gal (62.0 l)
2.6USgal (10.0l)Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg. of 96 RON/86 MON)
Air conditioning systemR-134a refrigerant and special PAG lubricant oil
(never R-12)
Windshield washer3.2 US qt (3.0 l)MB Windshield Washer Concentrate1
1Use MB Windshield Washer Concentrate “MB SummerFit” and water for temperatures above freezing point or MB Windshield Washer Concentrate “MB SummerFit”
and commercially available premixed windshield washer solvent/antifreeze for temperatures below freezing point. Follow suggested mixing ratios (page 442).
Windshield washer and headlamp
cleaning system*6.4 US qt (6.0 l)

437 Technical data
Fuels, coolants, lubricants, etc.
Engine oils
Engine oils are specifically tested for their
suitability in our engines and durability for
our service intervals. Therefore, only use
approved engine oils and oil filters
required for vehicles with Maintenance
System (U.S. vehicles) or FSS (Canada
vehicles). For a listing of approved engine
oils and oil filters, refer to the Factory Ap-
proved Service Products pamphlet, or con-
tact an authorized Mercedes-Benz Center.
Engine oil additives
Do not blend oil additives with engine oil.
They may damage the engine.
Damage or malfunctions resulting from
blending oil additives are not covered by
the Mercedes-Benz Limited Warranty.
Air conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil are used in the air
conditioning system.
Never use R-12 (CFC) or mineral-based
lubricating oil. Otherwise damage to the
system will occur.
Brake fluid
During vehicle operation, the boiling point
of the brake fluid is continuously reduced
through the absorption of moisture from
the atmosphere.
Only brake fluid approved by
Mercedes-Benz is recommended. An
authorized Mercedes-Benz Center will
provide you with additional information.
!
Using engine oils and oil filters of
specification other than those express-
ly required for the Maintenance System
(U.S. vehicles) or FSS (Canada vehi-
cles), or changing of oil and oil filter at
change intervals longer than those
called for by the Maintenance System
(U.S. vehicles) or FSS (Canada vehi-
cles) will result in engine damage not
covered by the Mercedes-Benz Limited
Warranty.
Please follow Maintenance System
(U.S. vehicles) or FSS (Canada vehi-
cles) recommendations for scheduled
oil changes. Failure to do so will result
in engine damage not covered by the
Mercedes-Benz Limited Warranty.
Warning!G
Under extremely strenuous operating condi-
tions, this moisture content can lead to the
formation of bubbles in the system, thus re-
ducing the system’s efficiency.
Therefore, the brake fluid must be replaced
regularly. Refer to your vehicle’s Mainte-
nance Booklet for replacement interval.