engine oil MERCEDES-BENZ CLK350 2006 C209 Owner's Manual

Contents
Luggage cover .............................. 262
Wind screen ................................. 263
Driving systems ................................. 265
Cruise control............................... 265
Parktronic system
(Parking assist)*, Canada only ..... 269
Loading .............................................. 273
Ski sack* (Canada only) ............... 273
Loading instructions ..................... 277
Useful features .................................. 278
Storage compartments................. 278
Center armrest ............................. 281
Armrest in the
rear passenger compartment ....... 283
Cup holders .................................. 283
Ashtrays ....................................... 284
Cigarette lighter ........................... 286
Power outlet in the
rear passenger compartment ....... 287
Floormats* ................................... 287
Telephone*................................... 288
Tele Aid ........................................ 289
Garage door opener* ................... 296
Operation......................................... 305
The first 1 000 miles (1 500 km)......... 306
Driving instructions............................ 307
Drive sensibly – save fuel ............. 307
Drinking and driving ..................... 307
Pedals .......................................... 307
Power assistance ......................... 307
Brakes .......................................... 308
Driving off .................................... 310
Parking ......................................... 310
Tires ............................................. 311
Hydroplaning ................................ 311
Tire traction.................................. 312
Tire speed rating .......................... 312
Winter driving instructions ........... 313
Standing water ............................. 314
Passenger compartment .............. 314
Driving abroad.............................. 315
Control and operation
of radio transmitters .................... 315
Catalytic converter ....................... 316
Emission control .......................... 316
Coolant temperature .................... 317At the gas station .............................. 318
Refueling ...................................... 318
Check regularly
and before a long trip................... 320
Engine compartment ......................... 321
Hood ............................................ 321
Engine oil ..................................... 322
Transmission fluid level................ 326
Coolant ........................................ 327
Battery ......................................... 328
Windshield washer system and
headlamp cleaning system*......... 329
Tires and wheels................................ 330
Important guidelines .................... 330
Tire care and maintenance........... 331
Direction of rotation..................... 333
Loading the vehicle ...................... 333
Recommended
tire inflation pressure ................... 339
Checking tire inflation pressure ... 341
MOExtended system* .................. 345
Tire labeling ................................. 345
Load identification ....................... 349
DOT, Tire Identification Number
(TIN) ............................................. 350
Maximum tire load ....................... 351

ContentsTowing the vehicle ............................. 458
Towing the vehicle........................ 458
Installing towing eye bolt.............. 460
Fuses ................................................. 462
Aids for replacing fuses ................ 462
Mainfuse box in passenger
compartment................................ 463
Fuse box in engine compartment . 463
Fuse box in trunk.......................... 464
Technical data................................. 465
Parts service ...................................... 466
Warranty coverage............................. 467
Loss of Service and Warranty
Information Booklet ..................... 467
Identification labels ........................... 468
Layout of poly-V-belt drive ................. 469
CLK 350 ....................................... 469
CLK 500/CLK 55 AMG................. 469
Engine................................................ 470
Rims and tires.................................... 471
Same size tires ............................. 473
Mixed size tires ............................ 475
Minispare wheel ........................... 476
Electrical system ............................... 477
Main dimensions and weights............ 478
Main dimensions .......................... 478
Weights ........................................ 478Fuels, coolants, lubricants, etc. ......... 479
Capacities .................................... 479
Engine oils ................................... 481
Engine oil additives ...................... 481
Air conditioning refrigerant .......... 481
Brake fluid.................................... 481
Premium unleaded gasoline ......... 482
Fuel requirements ........................ 482
Gasoline additives ........................ 483
Coolants ...................................... 484
Windshield washer system and
headlamp cleaning system*......... 486
Technical terms............................... 487Index................................................. 493

102 Controls in detailLocking and unlockingImportant notes on using KEYLESS-GO*

You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(page 96).


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


Always carry the SmartKey with
KEYLESS-GO with you.


Never store the SmartKey with
KEYLESS-GO together with:

electronic items such as a cellular
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.


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

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


All doors must be closed.


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


If you have started the engine with the
KEYLESS-GO start/stop button
(page 35), you can only turn it off
again with this button, even if you have
put the SmartKey in the starter switch
in the meantime.


This does not apply if, after starting, the
gear selector lever is still in positionP.
and the SmartKey is then inserted in
the starter switch. The SmartKey will
then have priority over the
KEYLESS-GO function and the vehicle’s
electrical system will operate accord-
ing to the position of the SmartKey in
the starter switch, even stopping the
engine.


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.

143 Controls in detail
Control system
Menus, submenus and functions
Menu1
Menu2
Menu3
Menu4
Menu5
Menu6
Menu7
Commands/submenusStandard display
AUDIO
NAV*
Vehicle status
message memory
1
1The vehicle status message memory menu is only displayed if there is a message stored.
Settings
Trip computer
Telephone*
(page 144)
(page 145)
(page 146)
(page 146)
(page 148)
(page 161)
(page 163)
Run Flat Indicator*
Select radio
station
Show route
guidance in-
structions, cur-
rent direction
traveled
Calling up vehicle
malfunction, warning
and system status
messages stored in
memory
Reset to factory
settings
Fuel consumption
statistics after
start
Load phone
book
Digital speedometer
Select satellite
radio station*
(USA only)
Instrument clus-
ter submenu
Fuel consumption
statistics since
the last reset
Search for
name in
phone book
Call up maintenance
service display
Operate CD
player
Time/Date sub-
menu
Call up range
Check engine oil lev-
el (except CLK 350)
Lighting
submenuVehicle submenuConvenience
submenu

144 Controls in detailControl systemStandard display menu
In the standard display, the outside tem-
perature and the trip odometer are shown
in the multifunction display.1Outside temperature
2Trip odometer
If you see another display, press
buttonè orÿ repeatedly until the
standard display appears.

Press buttonk orjto select
the functions in the standard display
menu.
The following functions are available:Display digital speedometer

Press buttonj ork until the
digital speedometer appears in the
multifunction display.
The current vehicle speed is shown in
the multifunction display and the sta-
tus line appears.
1Digital Speedometer
2Status line with outside temperature
3Trip odometer
iThe headings used in the menus table
are designed to facilitate navigation
within the system and are not neces-
sarily identical to those shown in the
control system displays.
The first function displayed in each
menu will automatically show you
which part of the system you are in.iYou can have the digital speedometer
displayed instead of the outside tem-
perature in the standard display. You
can select the setting in the submenu Instr. cluster
via the function
Basic
display
(page 152).
Function
Page
Run Flat Indicator
342
Call up digital speedometer
144
Call up maintenance service
display
362
Check engine oil level
323
iYou can have the digital speedometer
displayed instead of the outside tem-
perature in the status line. You can se-
lect the setting in the submenu
Instr.
cluster
via the function
Status line
display
(page 152).

320 OperationAt the gas stationCheck regularly and before a long tripEngine compartment (CLK 500, example)1Coolant level
2Brake fluid (fuse box cover removed)
3Windshield washer and headlamp
cleaning system*Coolant
For normal replenishing, use water (pota-
ble water quality). For more information,
see “Coolant” (
page 327) and see “Fu-
els, coolants, lubricants, etc.”
(
page 479).
Brake fluid
Removing fuse box cover (
page 463).Windshield washer and headlamp
cleaning system*
For more information on filling up the
washer reservoir, see “Windshield washer
system and headlamp cleaning system*”
(
page 329).
Engine oil level
For more information on engine oil, see
“Engine oil” (
page 322).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (
page 438).
For more information, see “Exterior lamp
switch” (
page 52).
Tire inflation pressure
For more information, see “Recommended
tire inflation pressure” (
page 339).
iOpening the hood, see (
page 321).
!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 also “Practi-
cal hints” (
page 375).

322 OperationEngine compartment
Closing
Let the hood drop from a height of
approximately 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. If necessary,
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
(ignition coils, spark plug sockets, diagnos-
tic 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 may
cause damage not covered by the
Mercedes-Benz Limited Warranty.
More information on this subject is
available at any Mercedes-Benz
Center.


323 Operation
Engine compartment
Checking engine oil level with the
control system
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 off
To check the engine oil level via the
multifunction display, do the following:

Switch on the ignition (
page 34).
The standard display (
page 144) should
appear in the multifunction display.

Press buttonk or j on the mul-
tifunction steering wheel until the fol-
lowing message is seen in the
multifunction display:One of the following messages will
subsequently appear in the multifunc-
tion display:


Engine oil level
ok


Add 1.0 qt.
to reach max. oil level(Canada:
1.0 liter
)


Add 1.5 qt.
to reach max. oil level(Canada:
1.5 liter
)


Add 2.0 qt.
to reach max. oil level(Canada:
2.0 liter
)

If necessary, add engine oil.
For adding engine oil, see (
page 325).
For more information on engine oil, see the
“Technical data” section (
page 479) and
(
page 481).
Other display messages
If the SmartKey is not turned to position2
in the starter switch, the following
message will appear:
Turn on ignition
to see engine oil level
Switch on the ignition (
page 36).
iIf you want to interrupt the checking
procedure, press thek orj
button on the multifunction steering
wheel.

324 OperationEngine compartmentIf you see the message:Observe waiting time
If engine is at operating temperature,
wait 5 minutes before repeating check
procedure.

If engine is not at operating
temperature yet, 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 operating
temperature, wait 5 minutes before
checking oil.

If the engine is not at operating
temperature 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:
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
multifunction display concerning engine
oil, see the “Practical hints” section
(
page 401). Checking engine oil level with the oil
dipstick, CLK 350
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 sta-
tionary 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 off.
!Excess oil must be siphoned or drained
off. It could cause damage to the
engine and catalytic converter not
covered by the Mercedes-Benz Limited
Warranty.

325 Operation
Engine compartment
1Oil dipstick
2Upper (max) mark
3Lower (min) mark
To check the engine oil level with the oil
dipstick, do the following:
Open the hood (
page 321).

Pull out oil dipstick1.

Wipe oil dipstick1 clean.

Fully insert oil dipstick1 into the
dipstick guide tube.

Pull out oil dipstick1 again after
approximately 3 seconds to obtain ac-
curate reading.
The oil level is correct when it is be-
tween the lower (min) mark3 and
upper (max) mark2 of oil dipstick1.

If necessary, add engine oil.
For adding engine oil, see “Adding en-
gine oil” (
page 325).
For more information on engine oil, see
“Fuels, coolants, lubricants, etc.”
(
page 479).
For more information on messages in the
multifunction display concerning engine
oil, see the “Practical hints” section
(page 401).Adding engine oiliThe filling quantity between the upper
and lower marks on the oil dipstick is
approximately 2.1 US qt. (2.0 l).
!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 Approved Service
Products pamphlet 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 Maintenance
System (U.S. vehicles) or FSS (Canada
vehicles), 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.