Contents
Technical data................................. 443
Parts service ...................................... 444
Warranty coverage............................. 445
Loss of Service and Warranty
Information Booklet ..................... 445
Identification labels ........................... 446
Layout of poly-V-belt drive ................. 447
CLS 500 ....................................... 447
CLS 55 AMG ................................ 447
Engine................................................ 448
Rims and tires.................................... 449
Same size tires............................. 451
Mixed size tires ............................ 453
MOExtended tires*....................... 456
Spare wheel ................................. 457Electrical system ................................ 458
Main dimensions ................................ 459
Weights .............................................. 460
Fuels, coolants, lubricants etc. ........... 461
Capacities ..................................... 461
Engine oils .................................... 464
Engine oil additives ....................... 464
Air conditioning refrigerant ........... 464
Brake fluid..................................... 464
Premium unleaded gasoline .......... 465
Gasoline additives ......................... 465
Fuel requirements ......................... 466
Coolants ....................................... 466
Windshield and headlamp
washer system .............................. 470
Technical terms............................... 471Index................................................. 479
288 OperationDriving instructionsTelephones and two-way radios
Radio transmitters, such as a portable tele-
phone or a citizens band unit should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
Refer to the radio transmitter operation
instructions regarding use of an external
antenna.
Catalytic converter
Your Mercedes-Benz is equipped with
monolithic-type catalytic converters, an
important element in conjunction with the
oxygen sensors to achieve substantial
control of the pollutants in the exhaust
emissions. Keep your vehicle in proper
operating condition by following our rec-
ommended maintenance instructions as
outlined in your Maintenance Booklet.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or
personal injury.
!To prevent damage to the catalytic con-
verters, only use premium unleaded
gasoline in this vehicle.
Any noticeable irregularities in engine
operation should be repaired promptly.
Otherwise, excessive unburned fuel
may reach the catalytic converter,
causing it to overheat, which could
potentially start a fire.
Warning!
G
As with any vehicle, do not idle, park or
operate this vehicle in areas where combus-
tible materials such as grass, hay or leaves
can come into contact with the hot exhaust
system, as these materials could be ignited
and cause a vehicle fire.
291 Operation
At the gas station
Replace fuel cap by turning it clockwise
until it audibly engages.
Close the fuel filler flap.
Check regularly and before a long trip
1Windshield washer and headlamp
cleaning system*
For more information on refilling the
reservoir, see “Windshield washer sys-
tem and headlamp cleaning system*”
(
page 300).
2Brake fluid
For more information on brake fluid,
see “Brake fluid” (
page 464).
3Coolant level
For more information on the coolant
level, see “Coolant level” (
page 297).
Warning!
G
Overfilling of the fuel tank may create pres-
sure in the system which could cause a gas-
oline fuel discharge. This could cause the
gasoline fuel to spray back out when remov-
ing the fuel pump nozzle, which could cause
personal injury.iLeaving the engine running and the fuel
cap open can cause the yellow fuel
tank reserve warning lamp to flash and
the úmalfunction indicator lamp
(USA only) or the ±malfunction
indicator lamp (Canada only) to illumi-
nate.
See also “Practical hints” section
(page 355).
iOnly use premium unleaded gasoline
with a minimum Posted Octane Rating
of 91 (average of 96 RON/86 MON).
Information on gasoline quality can
normally be found on the fuel pump.
For more information on gasoline, see
the Factory Approved Service Products
pamphlet.
448 Technical dataEngineModel
CLS 500 (219.375)
CLS 55 AMG (219.376
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.Engine
M113
M113
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
8
8
Bore
3.82 in (97.00 mm)
3.82 in (97.00 mm)
Stroke
3.31 in (84.00 mm)
3.60 in (92.00 mm)
Total piston displacement
303.0 cu in (4 966 cm
3)
331.8 cu in (5 439 cm
3)
Compression ratio
10:1
9:1
Output acc. to SAE J 1349
302 hp/5 600 rpm
2
(225 kW/5 600 rpm)
469 hp/6 100 rpm
2
(350 kW/6 100 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.Maximum torque acc. to SAE J 1349
339 lb-ft/2 700 rpm - 4 250 rpm
(460 Nm/2 700 rpm - 4 250 rpm)
516 lb-ft/2 650 rpm - 4 500 rpm
(700 Nm/2 650 rpm - 4 500 rpm)
Maximum engine speed
6300 rpm
6500 rpm
Firing order
1-5-4-2-6-3-7-8
1-5-4-2-6-3-7-8
Poly-V-belt
Belt one: 2 390 mm
Belt one: 1 289 mmBelt two: 2 449 mm
462 Technical dataFuels, coolants, lubricants etc.
Model
Capacity
Fuels, coolants, lubricants etc.
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin CHF 11S)
Front wheel hubs
approx. 3.0 oz (85 g) each
High temperature roller bearing grease
Brake system
1.1 US qt (1.05 l)
MB Brake Fluid (DOT 4+)
Cooling system
CLS 500
11.9 US qt (11.3 l)
MB 325.0 Anticorrosion/Antifreeze
CLS 55 AMG
13.84 US qt (13.1 l)
MB 325.0 Anticorrosion/Antifreeze
Fuel tank
21.12 US gal (80.0 l)
Premium unleaded gasoline
Minimum Posted Octane 91 (Avg. of 96
RON/86 MON)
including a reserve of
2.38 US gal (9.0 l)
465 Technical data
Fuels, coolants, lubricants etc.
Premium unleaded gasoline
Gasoline additives
A major concern among engine manufac-
turers is carbon build-up caused by gaso-
line. Mercedes-Benz recommends only the
use of quality gasoline containing additives
that prevent the build-up of carbon depos-
its.
After an extended period of using fuels
without such additives, carbon deposits
can build up especially on the intake valves
and in the combustion area, leading to
engine performance problems such as:
Warm-up hesitation
Unstable idle
Knocking/pinging
Misfire
Power loss
Warning!
G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious inju-
ry. Whenever you are around gasoline, avoid
inhaling fumes and skin contact, extinguish
all smoking materials. Never allow sparks,
flame or smoking materials near gasoline!
!To maintain the engine’s durability and
performance, premium unleaded gaso-
line must be used. If premium unleaded
gasoline is not available and low octane
fuel is used, follow these precautions:
Have the fuel tank only partially
filled with unleaded regular and fill
up with premium unleaded as soon
as possible
Avoid full throttle driving and abrupt
acceleration
Do not exceed an engine speed of
3 000 rpm if the vehicle is loaded
with a light load such as two per-
sons and no luggage
Do not exceed
2/3 of maximum
accelerator pedal position if the
vehicle is fully loaded or operating
in mountainous terrain
466 Technical dataFuels, coolants, lubricants etc.In areas where carbon deposits may be
encountered due to lack of availability of
gasolines which contain these additives,
Mercedes-Benz recommends the use of
additives approved by us for use on
Mercedes-Benz vehicles. Refer to Factory
Approved Service Products Pamphlet for a
listing of approved product(s). Follow di-
rections on product label.
Do not blend other fuel additives with fuel.
This only results in unnecessary costs and
may be harmful to the engine operation.
Damage or malfunction resulting from
poor fuel quality or from blending addition-
al fuel additives other than those tested
and approved by us for use on
Mercedes-Benz vehicles listed in the Fac-
tory Approved Service Products pamphlet
are not covered by the Mercedes-Benz
Limited Warranty.
Fuel requirements
Only use premium unleaded gasoline
meeting ASTM standard D 439.
The octane number (posted at the pump)
m u s t b e 9 1 m i n . I t i s a n a v e r a g e o f b o t h t h e
Research (R) Octane Number and the Mo-
tor (M) Octane Number: (R+M)/2). This is
also known as the ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA and TBA can be
used provided the ratio of any one of these
oxygenates to gasoline does not exceed
10%; MTBE must not exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.
Using mixtures of ethanol and methanol is
not allowed. Gasohol, which contains 10%
ethanol and 90% unleaded gasoline, can be
used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc.
Coolants
The engine coolant is a mixture of water
and anticorrosion/antifreeze, which pro-
vides:
Corrosion protection
Freeze protection
Boiling protection (by increasing the
boiling point)
The cooling system was filled at the factory
with a coolant providing freeze protection
to approximately -22°F (-30°C) and corro-
sion protection.
485 Index
Front seats
Heating* 128
FSS (Canada vehicles) 339
FSS (Flexible Service System) 474
Fuel 291
Fuel reserve warning lamp 358
Premium unleaded gasoline 291
Fuel consumption statistics
After start 171
Since last reset 171
Fuel filler flap 290
Locking 290
Opening 290
Unlocking 290
Fuel requirements 466
Fuel tank
Filler flap 290
Fuels, coolants, lubricants etc. 461
Fuse box in trunk 442
Fuses 441
Fuse chart 441
Fuse extractor 441
Replacing 441
Spare fuses 441G
Garage door opener* 270
Gasoline see Fuel 291
GAWR 332
Gear range 474
Automatic transmission 181
Limiting 181
Shifting into optimal 183
Gear selector lever
Cleaning 349
Position 178
Global
Locking 101
Locking with KEYLESS-GO* 107
Unlocking 100
Unlocking with KEYLESS-GO* 107
Global Positioning System (GPS) 474
Glove box 251
Good visibility 191
GPS 474
Gross Axle Weight Rating see GAWR
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GVW 332
GVWR 333H
Hands-free microphone 29
Hard plastic trim items, cleaning 349
Hazard warning flasher 140
Head restraint
Active head restraint 74, 124
Head restraints
resetting activated 407
Headlamps
Automatic headlamp mode 135
Bi-Xenon* 472
Cleaning lenses 346
Cleaning system* 191
Deactivating 59
Headliner, cleaning 350
Heated seats* 128
Height adjustment
Head restraints 41
Steering wheel 41
Vehicle level 239
High beam flasher 53, 138
High beam headlamps
Replacing bulbs 415
Switching on 53, 138
High mounted brake lamp 412