2007 MERCEDES-BENZ CLK550 COUPE check oil

Contents
At the gas station .............................. 303
Refueling ...................................... 303
Check regularly
and before a long trip ................... 305
Engine compartment ......................... 306
Hood ............................................ 306
Engine oil ..................................... 308
Transmission fluid level ................ 309
Coolant ........................................ 310
Battery ......................................... 311
Windshield washer system and
headlamp cleaning system* ......... 312
Tires and wheels ................................ 313
Important guidelines .................... 313
Tire care and maintenance........... 314
Direction of rotation ..................... 316
Loading the vehicle ...................... 316
Recommended
tire inflation pressure ................... 321
Checking tire inflation pressure ... 323
MOExtended system* .................. 326
Tire labeling.................................. 327
Load identification ....................... 331
DOT,
Tire Identification Number (TIN) ... 332
Maximum tire load ....................... 333Maximum tire inflation pressure ... 334
Uniform Tire Quality Grading
Standards (U.S. vehicles) .............. 335
Tire ply material ............................ 336
Tire and loading terminology......... 337
Rotating tires ................................ 340
Winter driving ..................................... 341
Winter tires ................................... 341
Block heater (Canada only) ........... 342
Snow chains.................................. 342
Maintenance....................................... 343
Maintenance
service indicator message ............ 343
Clearing the maintenance
service indicator message ............ 344
Maintenance
service term exceeded.................. 344
Calling up the maintenance
service indicator display ............... 345
Resetting the maintenance
service indicator ........................... 345
Vehicle care........................................ 346
Cleaning and care of vehicle ......... 346
Practical hints.................................. 355
What to do if …? ................................. 356
Lamps in instrument cluster ......... 356
Lamp in center console ................ 366
Vehicle status messages
in the multifunction display .......... 368
Where will I find...? ............................. 394
First aid kit.................................... 394
Vehicle tool kit.............................. 394
Minispare wheel............................ 397
Spare wheel bolts ......................... 398
Unlocking/locking in an emergency .. 399
Unlocking the vehicle ................... 399
Locking the vehicle ....................... 400
Manually unlocking
the gear selector lever .................. 401
Opening/closing in an emergency ..... 402
Power tilt/sliding sunroof* ........... 402
Resetting activated head restraints.... 403
Resetting
activated head restraints .............. 403
Replacing SmartKey batteries ............ 404
SmartKey / SmartKey
with KEYLESS-GO* ....................... 404

23 At a glance
Exterior view
ItemPage
1Trunk
Unlocking
Opening and closing
Minispare wheel
Vehicle tool kit
34
109,
111
397
395
2Rear lamps407
3Rear window, defrosting183
4Fuel filler flap
Refueling
Gasoline303
303
451
5Doors
Locking and unlocking
Opening
Locking/unlocking in an
emergency
34, 62,
98
108
399
ItemPage
6Exterior rear view mirror
Adjusting
Auto-dimming rear view
mirrors
45
180
7Tires and wheels
Checking tire inflation pres-
sure
Run Flat Indicator*
General information
Vehicle tool kit
Minispare wheel
Flat tire313
323
324
313
394
397
415
8Towing
Installing towing eye bolt427
429
9Front lamps409
ItemPage
aHood, opening
Engine oil
Coolant
Battery306
308
310
311
bWindshield wipers
Wiper blades, replacing
Wiper blades, cleaning56
413
351
cWindshield
Front window, defrosting
Cleaning with wiper fluid
Cleaning
185,
195
57
351
dPower tilt/sliding sunroof
Opening and closing
Opening and closing in an
emergency
251
402

103 Controls in detail
Locking and unlocking
Important notes on using KEYLESS-GO*

You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey
(
page 98).

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 the door to be
opened 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 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).
iYou can also open and close the windows
(
page 245) and the tilt/sliding sunroof*
(
page 251) using the SmartKey with
KEYLESS-GO.
!If you can no longer lock or unlock the vehi-
cle with the SmartKey with KEYLESS-GO, then
the batteries in the SmartKey with KEYLESS-GO
are discharged, the SmartKey with KEYLESS-GO
is malfunctioning or the vehicle battery is
drained.

Check the batteries in the SmartKey with
KEYLESS-GO (
page 107) and replace
them if necessary (
page 404).

Use the mechanical key to unlock the driv-
er’s door (
page 399) and the trunk
(
page 400).

Use the mechanical key to lock the driver’s
door (
page 400) and the trunk
(
page 117).

Have the vehicle battery and the battery con-
nections checked (
page 421).
If the SmartKey with KEYLESS-GO is malfunc-
tioning, contact an authorized Mercedes-Benz
Center.

305 Operation
At the gas station
Check regularly and before a long trip
Engine compartment (CLK 550, 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 310) and see “Fu-
els, coolants, lubricants, etc.”
(
page 448).
Brake fluid
Removing fuse box cover,
see (
page 433).Windshield washer and headlamp
cleaning system*
For more information on filling up the
washer reservoir, see “Windshield washer
system and headlamp cleaning system*”
(
page 312).
Engine oil level
For more information on engine oil, see
“Engine oil” (
page 308).
Vehicle lighting
Check function and cleanliness. For more
information on replacing light bulbs, see
“Replacing bulbs” (
page 406).
For more information, see “Exterior lamp
switch” (
page 55).
Tire inflation pressure
For more information, see “Checking tire
inflation pressure” (
page 323).
iOpening the hood, see (page 306).
!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 358).

308 Operation
Engine compartment
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.
Checking engine oil level
When checking the oil level

the vehicle must be parked on level
ground.

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

with the engine not at operating tem-
perature, the vehicle must have been
stationary for at least 30 minutes with
the engine turned off.
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 306).
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 309).
iDo 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.iCLK 350:
The filling quantity between the upper and lower
marks on the oil dipstick is approximately
2.1 US qt. (2.0 l).
CLK 550:
The filling quantity between the upper and lower
marks on the oil dipstick is approximately
1.6 US qt. (1.5 l).

309 Operation
Engine compartment
For more information on engine oil, see
“Fuels, coolants, lubricants, etc.”
(
page 448).
For more information on messages in the
multifunction display concerning engine
oil, see the “Practical hints” section
(
page 384).
Adding engine oil
1Filler 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.
More information on engine oil can be
found in the “Technical data” section
(
page 448) and (page 450).
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.
!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 vehicles) will result in engine or
emission control system damage not covered by
the Mercedes-Benz Limited Warranty.
!Excess oil must be siphoned or drained off.
It could cause damage to the engine and emis-
sion control system not covered by the
Mercedes-Benz Limited Warranty.

345 Operation
Maintenance
Calling up the maintenance service
indicator display
You can call up the maintenance service in-
dicator display at any time to check when
the next maintenance service is due.
Switch on the ignition (page 38).
Press buttonè orÿ on the mul-
tifunction steering wheel repeatedly
until the standard display appears in
the multifunction display (
page 146).
Press buttonkorjuntil the
maintenance service indicator display
with the service symbol9or½
and the service deadline appears in the
multifunction display.Resetting the maintenance service
indicator
In the event that the maintenance service
on your vehicle is not carried out by an
authorized Mercedes-Benz Center, you can
have the maintenance service indicator
reset. The automotive maintenance facility
carrying out the maintenance service will
find the information for resetting the
maintenance service indicator in the
maintenance-relevant information for your
vehicle. Such information is available from
either your authorized Mercedes-Benz
Center or directly from Mercedes-Benz.iIf the battery is disconnected, the days of
disconnection will not be included in the count
shown by the maintenance service indicator. To
arrive at the true maintenance service deadline,
you will need to subtract these days from the
days shown in the maintenance service indicator
message or maintenance service indicator dis-
play.
Do not confuse the maintenance service indica-
tor with the engine oil level indicator:.
iIf the maintenance service indicator was in-
advertently reset, have an authorized
Mercedes-Benz Center correct it.
Only reset if the proper maintenance service has
been performed. Resetting the system without
performing the proper service as called for by
the maintenance service indicator will result in
engine damage and/or other vehicle damage not
covered by the Mercedes-Benz Limited Warran-
ty.

346 Operation
Vehicle care
Cleaning and care of vehicle
Regular and proper care will help to
maintain the value of your vehicle. The
best way to protect your vehicle from
harmful environmental influences is to
wash it and use protective treatments reg-
ularly.While in operation, even while parked, your
vehicle is subjected to varying external
influences which, if gone unchecked, can
attack the paintwork as well as the vehicle
underbody and cause lasting damage.
Such damage is caused not only by
extreme and varying climatic conditions,
but also by:

Air pollution

Road salt

Tar

Gravel and stone chipping
To avoid paint damage, you should
immediately remove:

Grease and oil

Fuel

Coolant

Brake fluid

Bird droppings

Insects

Tree resins, etc.Frequent washing reduces and / or
eliminates the aggressiveness and
potency of the above adverse influences.
More frequent washings are necessary to
deal with unfavorable conditions:

near the ocean

in industrial areas (smoke, exhaust
emissions)

during winter operation
You should check your vehicle from time to
time for stone chipping or other damage.
Any damage should be repaired as soon as
possible to prevent corrosion.
In doing so, do not neglect the underbody
of the vehicle. A prerequisite for a
thorough check is a washing of the
underbody followed by a thorough
inspection. Damaged areas need to be
re-undercoated.
Your vehicle has been treated at the
factory with a wax-base rustproofing in the
body cavities which will last for the lifetime
of the vehicle. Post-production treatment Warning!G
Many cleaning products can be hazardous.
Some are poisonous, others are flammable.
Always follow the instructions on the
particular container. Always open your
vehicle’s doors or windows when cleaning
the inside.
Never use fluids or solvents that are not
designed for cleaning your vehicle.
Always lock away cleaning products and
keep them out of reach of children.