2008 MERCEDES-BENZ CL-Class oil

358 Controls in detailLocking and unlockingImportant notes on using KEYLESS-GO

You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(page 352).
The starter switch is located under the
KEYLESS-GO button. Pull the
KEYLESS-GO button out in order to ac-
cess the starter switch.


You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with button ‹).


Always carry the SmartKey with
KEYLESS-GO with you.


Never store the SmartKey with
KEYLESS-GO together with:

Electronic items such as a mobile
phone or another SmartKey with
KEYLESS-GO


Metallic objects such as coins or
metal foil
Doing so could impair the function of
the KEYLESS-GO system.


To lock or unlock the vehicle, the
SmartKey with KEYLESS-GO must be
located outside the vehicle within ap-
proximately 3 ft (1 m) of a door or the
trunk lid.


If the vehicle has been parked for more
than 72 hours, you must pull an outside
door handle in order to activate the
KEYLESS-GO function.


In order to start the engine with the
SmartKey with KEYLESS-GO:

The SmartKey with KEYLESS-GO
must be located in the vehicle.


The KEYLESS-GO start/stop button
must be inserted in the starter
switch (
page 366).


The brake pedal must be firmly de-
pressed. Do not depress the accel-
erator.


If the SmartKey with KEYLESS-GO is
positioned farther away from the vehi-
cle, the system may no longer recog-
nize the SmartKey with KEYLESS-GO.
The vehicle then cannot be locked or
the engine started via the KEYLESS-GO
system.


If the SmartKey with KEYLESS-GO is re-
moved from the vehicle (e.g. if passen-
ger exits the vehicle with the SmartKey
with KEYLESS-GO)

when pressing the KEYLESS-GO
start/stop button or trying to lock
the vehicle with the outside door
handle the message
“Key Not Detected” appears in the
multifunction display


with the engine running, the mes-
sage “Key Not Detected” appears in
the multifunction display while driv-
ing off

432 Controls in detailAutomatic transmissionIf you are driving in the manual program
modeM, upshift indicator2 in the multi-
function display advises you to upshift be-
fore the engine reaches the overspeed
range. Thus you can drive at the maximum
engine speed for each gear without over-
revving the engine.
1Gear indicator
2Upshift indicator “up”
3Engine oil temperature
4Vehicle supply voltage
Shift to the next higher gear.
The fuel supply will otherwise be inter-
rupted to prevent the engine from over-
revving.Downshifting

Briefly pull left shift paddle1
(page 429).
The transmission shifts to the next
lower gear.Kickdown
Using the kickdown when driving in the
manual program modeM is not possible.
Deactivating manual shift program

Press the program mode selector
switch (
page 430) repeatedly until
“C”or“S” appears in the multifunction
display.
or

Restart the engine.
The transmission will go to the
automatic program mode (C orS).
The manual program modeM is not
stored.
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced
vehicle control. Your vehicle’s ABS will not
prevent this type of loss of control.i
When you brake or stop, the transmission
shifts down to a gear from which you can easily
accelerate or drive off.


552 OperationAt the gas stationCheck regularly and before a long tripExample illustration from CL 5501Coolant level
2Brake fluid
3Windshield washer and headlamp
cleaning systemWindshield 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 560).
Coolant
For more information on coolant, see
“Coolant level” (
page 559) and see “Fu-
els, coolants, lubricants, etc.”
(
page 733).
Brake fluid
For information on brake fluid, see “Brake
fluid” (
page 736).Engine oil level
For more information on engine oil, see
“Engine oil” (
page 554).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (
page 688).
For more information, see “Lighting”
(
page 391).
Tire inflation pressure
For information on tire inflation pressure,
see “Checking tire inflation pressure”
(page 571).
i
Opening the hood (
page 553).
!
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 611) and (
page 643).

554 OperationEngine 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
cranked manually
Warning!
G
When closing the hood, use extreme caution
not to catch hands or fingers. Be careful that
you do not close the hood on anyone.
Make sure that the hood is securely en-
gaged before driving off. Do not continue
driving if the hood can no longer engage af-
ter an accident, for example. The hood could
otherwise come loose while the vehicle is in
motion and endanger you and/or others.
!
Do not use any special lubricant additives,
as these may damage the drive assemblies. Us-
ing special additives not approved by
Mercedes-Benz may cause damage not covered
by the Mercedes-Benz Limited Warranty.
More information on this subject is available at
any Mercedes-Benz Center.


555 Operation
Engine compartment
Notes about checking engine oil level
When checking the oil level

the vehicle must be parked on level
ground


with the engine at operating tempera-
ture, the vehicle must have been
stationary for at least 5 minutes with
the engine turned off


with the engine not at operating tem-
perature yet, the vehicle must have
been stationary for at least 30 minutes
with the engine turned offChecking engine oil level with the
control system (CL 600 and
CL 65 AMG)
To check the engine oil level via the multi-
function display, do the following:

Switch on the ignition (
page 365).

Press( or& to select the menu
“Service”.

Press$ or% to select “Engine
Oil Level”.

Press#.
The following message is seen in the multi-
function display:
“Measuring
Engine Oil Level
Accurate Only
When Vehicle Is Level”One of the following messages will
subsequently appear in the multifunction
display:


“Engine Oil Level
OK”


“Add 1.0 qts. Engine Oil
At Next Refueling”
(Canada: “1.0 l”)


“Add 1.5 qts. Engine Oil
At Next Refueling”
(Canada: “1.5 l”)


“Add 2.0 qts. Engine Oil
At Next Refueling”
(Canada: “2.0 l”)

If necessary, add engine oil
(page 557).
For more information on engine oil, see the
“Technical data” section (
page 733) and
(
page 736).
i
The menu overview can be found on
(
page 284).
i
If you want to interrupt the checking proce-
dure, press buttonL on the multifunction
steering wheel.

556 OperationEngine compartmentOther display messages
If the SmartKey or KEYLESS-GO* start/
stop button is not in position 2, the follow-
ing message will appear:
“For Engine Oil Level
Ignition Must be On”
Switch on the ignition (
page 365).
If you see the message
“Need More Time
to Check
Engine Oil Level”

If engine is at operating temperature,
wait 5 minutes before repeating check
procedure.

If engine is not at operating tempera-
ture yet, wait 30 minutes before
repeating check procedure.If you see the message
“Engine Oil Level
Not Measurable
With Running Engine”

Turn off the engine.

If the engine is at operating tempera-
ture, wait 5 minutes before checking
oil.

If the engine is not at operating temper-
ature yet, you must wait 30 minutes
before checking oil.If there is excess engine oil with the engine
at operating temperature, the following
message will appear:
“Reduce
Engine Oil Level”

Have excess oil siphoned or drained
off. Contact an authorized
Mercedes-Benz Center.
For more information on messages in the
multifunction display concerning engine
oil, see the “Practical hints” section
(
page 670).
!
Excess oil must be siphoned or drained off.
It could cause damage to the engine and catalyt-
ic converter not covered by the Mercedes-Benz
Limited Warranty.

557 Operation
Engine compartment
Checking engine oil level with the oil
dipstick (CL 550 and CL 63 AMG)
To check the engine oil level with the oil
dipstick, do the following:
Open the hood (
page 553).
Example illustration from CL 5501Oil dipstick
2Upper mark
3Lower mark
Pull out oil dipstick1.

Wipe oil dipstick1 clean.

Fully insert oil dipstick1 into the dip-
stick guide tube.

Pull out oil dipstick1 again after ap-
proximately 3 seconds to obtain accu-
rate reading.
The oil level is correct when it is between
lower mark3 (min.) and upper mark2
(max.) mark of the oil dipstick.

If necessary, add engine oil.
For adding engine oil (
page 557).
For more information on engine oil, see the
“Technical data” section (page 733) and
(
page 736).
For more information on messages in the
multifunction display concerning engine
oil, see the “Practical hints” section
(page 622).Adding engine oil
i
CL 550 only:
The filling quantity between the upper and lower
marks on the oil dipstick is approximately
2.1 US qt. (2.0 l).
i
AMG vehicles only:
The filling quantity between the upper and lower
marks on the oil dipstick is approximately
1.6 US qt. (1.5 l).
!
Only use approved engine oils and oil filters
required for vehicles with Maintenance System.
For a listing of approved engine oils and oil fil-
ters, refer to the Factory Approved Service
Products pamphlet (USA only) in your vehicle
literature portfolio, or contact an authorized
Mercedes-Benz Center.
Using engine oils and oil filters of specification
other than those expressly required for the Main-
tenance System, or changing of oil and oil filter
at change intervals longer than those called for
by the Maintenance System will result in engine
or emission control system damage not covered
by the Mercedes-Benz Limited Warranty.

558 OperationEngine compartmentExample illustration from CL 550
CL 63 AMG1Filler cap

Unscrew filler cap1 from filler neck.

Add engine oil as required. Be careful
not to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.

Screw filler cap1 back on filler neck.
For more information on engine, see the
“Technical data” section (
page 733) and
(
page 736).
Transmission fluid level
The transmission fluid level does not need
to be checked. If you notice transmission
fluid loss or gear shifting malfunctions,
have an authorized Mercedes-Benz Center
check the automatic transmission.Active Body Control (ABC) fluid level
Regular fluid level check is not required. If
you notice fluid leaks or malfunction mes-
sages in the multifunction display, have an
authorized Mercedes-Benz Center check
the ABC-system.
!
Excess oil must be siphoned or drained off.
It will cause damage to the engine and emission
control system not covered by the
Mercedes-Benz Limited Warranty.