2004 MERCEDES-BENZ CL600 Owner's Manual

256OperationDriving instructions
Coolant temperature
During severe operating conditions,
e.g. stop-and-go traffic, the coolant tem-
perature may rise close to approx. 248°F
(120°C).
The engine should not be operated with
the coolant temperature over 248°F
(120°C). Doing so may cause serious en-
gine damage which is not covered by the
Mercedes-Benz Limited Warranty.
Warning!
G
Inhalation of exhaust gas is hazardous to
your health. All exhaust gas contains carbon
monoxide, and inhaling it can cause uncon-
sciousness and lead to death.
Do not run the engine in confined areas
(such as a garage) which are not properly
ventilated. If you think that exhaust gas
fumes are entering the vehicle while driving,
have the cause determined and corrected
immediately. If you must drive under these
conditions, drive with at least one window
fully open at all times.
Warning!
G


Driving when your engine is badly over-
heated can cause some fluids, which
may have leaked into the engine com-
partment, to catch fire. You could be se-
riously burned.


Steam from an overheated engine can
cause serious burns and can occur just
by opening the hood. Stay away from
the engine if you see or hear steam com-
ing from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.

257 Operation
At the gas station
At the gas station
RefuelingThe fuel filler flap is located on the
right-hand side of the vehicle towards the
rear. Locking/unlocking the vehicle with
the SmartKey or the SmartKey with
KEYLESS-GO* automatically locks/un-
locks the fuel filler flap.

Turn the engine off

by turning the SmartKey to
position0. Remove the SmartKey
from the starter switch.


by pressing the KEYLESS-GO*
start/stop button. Open the driv-
er’s door (with the driver’s door open, starter switch is now in
position0, same as SmartKey re-
moved from starter switch).

Open the fuel filler flap by pushing at
the point indicated by the arrow.
The fuel filler flap springs open.

Turn the fuel cap to the left and hold on
to it until possible pressure is released.

Take off the cap and set it in the recess
on the fuel filler flap.
To prevent fuel vapors from escaping
into open air, fully insert filler nozzle
unit.

Only fill your tank until the filler nozzle
unit cuts out – do not top up or over-
fill.
Warning!
G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious
injury. Whenever you are around gasoline,
avoid inhaling fumes and skin contact, extin-
guish all smoking materials. Never allow
sparks, flame or smoking materials near
gasoline!


258OperationAt the gas station
Replace the fuel cap by turning it to the
right.
You will hear when the fuel cap is tight-
ened.

Close the fuel filler flap.
Check regularly and before a long trip
1Windshield washer and headlamp
cleaning system
2Brake fluid
3Coolant level
Warning!
G
Overfilling of the fuel tank may create pres-
sure in the system which could cause a gas
discharge. This could cause the gas to spray
back out when removing the fuel pump noz-
zle, which could cause personal injury.
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.
More information on gasoline can be
found in the Factory Approved Service
Products pamphlet.iLeaving the engine running and the fuel
cap open can cause the ? malfunc-
tion indicator lamp to illuminate.
For more information, see “Practical
hints” (
page 294).
iOpening the hood, see (
page 260).


259 Operation
At the gas station
Windshield 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 269).
Coolant
For more information, see “Coolant”
(page 266) and see “Coolants”
(page 376).Brake fluid
For more information on brake fluid, see
“Brake fluid” (
page 375).
Engine oil level
For more information on engine oil, see
“Engine oil” (
page 261).Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (
page 336).
For more information , see “Exterior lamp
switch” (
page 119).
Tire inflation pressure
For information on tire inflation pressure,
see “Checking tire inflation pressure”
(
page 271).
!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 293).

260OperationEngine compartment
Engine compartmentHood
Opening
The hood lock release lever is located in
the driver’s footwell to the left of the park-
ing brake pedal.
1Release lever

Pull release lever 1 in direction of ar-
row.
The hood is unlocked and handle 2
will extend out of the radiator grille.
2Handle for opening the hood

Pull handle 2 to its stop out of radiator
grille.

Pull up on the hood (do not pull up on
the handle) and then release it.
The hood will be automatically held
open at shoulder height.
Warning!
G
Do not pull the release lever while the vehi-
cle is in motion. Otherwise the hood could
be forced open by passing air flow.
!To avoid damage to the windshield wip-
ers or hood, never open the hood if the
wiper arms are folded forward away
from the windshield.
Warning!
G
To help prevent personal injury, stay clear of
moving parts when the hood is open and the
engine is running. Make sure the hood is
properly closed before driving. When closing
the hood, use extreme caution not to catch
hands or fingers.
The radiator fan may continue to run for ap-
proximately 30 seconds or even restart af-
ter the engine has been turned off. Stay
clear of fan blades.

261 Operation
Engine compartment
Closing
Let the hood drop from a height of ap-
proximately 1 ft (30 cm).
The hood will lock audibly.

Check to make sure the hood is fully
closed.
If you can raise the hood at a point
above the headlamps, then it is not
properly closed. Open it again and let it
drop with somewhat greater force.
Engine oil
The amount of oil your engine needs will
depend on a number of factors, including
driving style. Higher oil consumption can
occur when

the vehicle is new


the vehicle is driven frequently at
higher engine speeds
Engine oil consumption checks should only
be made after the vehicle break-in period.
Warning!
G
If you see flames or smoke coming from the
engine compartment, or if the coolant tem-
perature gauge indicates that the engine is
overheated, do not open the hood. Move
away from vehicle and do not open the hood
until the engine has cooled down. If neces-
sary, call the fire department.Warning!
G
The engine is equipped with a transistorized
ignition system. Because of the high voltage
it is dangerous to touch any components (ig-
nition coils, spark plug sockets, diagnostic
socket) of the ignition system

with the engine running


while starting the engine


if ignition is “on” and the engine is
turned manually
Warning!
G
Be careful that you do not close the hood on
anyone.
iDo not use any special lubricant addi-
tives, as these may damage the drive
assemblies. Using special additives not
approved by Mercedes-Benz will re-
strict your warranty entitlement.
More information on this subject is
available at any Mercedes-Benz
Center.

262OperationEngine compartmentChecking the engine oil level with the
control system
When checking the oil level the vehicle
must

be parked on level ground


be at normal operating temperature


have been stationary for at least five
minutes with the engine turned off
To check the engine oil level via the multi-
function display, do the following:

Turn the SmartKey in the starter switch
to position2 or press the KEYLESS-GO
start/stop button* twice.
The standard display (
page 134) should
appear in the multifunction display.

Press buttonk or j on the
steering wheel until the following mes-
sage is seen in the multifunction dis-
play:CORRECT MEASUREMENT
ONLY IF VEH. LEVEL
After about three seconds this mes-
sage is displayed:ENGINE OIL LEVEL
MEASURING NOW!One of the following messages will sub-
sequently appear in the indicator:

ENGINE OIL LEVEL
OK


ADD 1.0 QT. TO
REACH MAX. OIL LEVEL!(Canada:
1.0 LITER
)


ADD 1.5 QTS. TO
REACH MAX. OIL LEVEL!(Canada:
1.5 LITERS
)


ADD 2.0 QTS. TO
REACH MAX. OIL LEVEL!(Canada:
2.0 LITERS
)

If necessary, add engine oil.
For adding engine oil see (
page 265).
For more information on engine oil, see
“Technical data” section (
page 372) and
(
page 374).iIf you want to interrupt the checking
procedure, press the k or j but-
ton on the multifunction steering
wheel.

263 Operation
Engine compartment
Other display messages
If the SmartKey or KEYLESS-GO start/stop
button* is not in position 2, the following
message will appear:FOR ENGINE OIL LEVEL
IGNITION ON!
Switch on ignition.
If you see the message:
PERF. SERV ON TIME
If engine is at normal operating
temperature, wait five minutes before
repeating check procedure.

If engine is not yet at normal operating
temperature, wait 30 minutes before
repeating check procedure.If you see the message:
ENGINE OIL LEVEL
NOT WHEN ENGINE ON!
Turn off the engine.

If the engine is at normal operating
temperature, wait five minutes before
checking oil.

If the engine is not yet at normal oper-
ating temperature, you must wait
30 minutes before checking oil.
If there is excess engine oil with the engine
at normal operating temperature, the fol-
lowing message will appear:
ENGINE OIL LEVEL
REDUCE OIL LEVEL
Have excess oil siphoned or drained
off. Contact an authorized
Mercedes-Benz Center.For more information on messages in the
display concerning engine oil, see the
“Practical hints” section (
page 310).
!Excess oil must be siphoned or drained
off. It could cause damage to the en-
gine and catalytic converter not cov-
ered by the Mercedes-Benz Limited
Warranty.iPerform the engine oil level check with
the dipstick (CL 500, and CL 55 AMG
only) if it cannot be completed with the
control system .
In this case we recommend that you
have the system checked at a
Mercedes-Benz Center.