2007 MERCEDES-BENZ CLK350 Starting

Contents
Introduction.......................................... 9
Product information ................................ 9
Operator’s Manual ............................... 10
Service and warranty information .. 10
Important notice for California
retail buyers and lessees of
Mercedes-Benz automobiles .......... 11
Maintenance .................................. 12
Roadside Assistance ...................... 12
Change of address or ownership.... 12
Operating your vehicle
outside the USA or Canada ............ 13
Where to find it .................................... 14
Symbols ............................................... 15
Operating safety .................................. 16
Proper use of the vehicle ............... 16
Problems with your vehicle .................. 17
Reporting safety defects...................... 18
Reporting safety defects ................ 18
Vehicle data recording ......................... 19
Information regarding electronic
recording devices ........................... 19At a glance.......................................... 21
Exterior view ......................................... 22
Cockpit ................................................. 24
Instrument cluster ................................ 26
Multifunction steering wheel ................ 28
Center console ..................................... 29
Upper part ...................................... 29
Lower part ...................................... 30
Overhead control panel ........................ 31
Door control panel................................ 32Getting started................................... 33
Unlocking ............................................. 34
Unlocking with the SmartKey ......... 34
Unlocking with KEYLESS-GO*......... 35
Starter switch positions .................. 36
Adjusting .............................................. 39
Seats .............................................. 39
Steering wheel ................................ 43
Mirrors ............................................ 45
Driving .................................................. 47
Fastening the seat belts ................. 47
Starting the engine ......................... 50
Parking brake ................................. 52
Driving ............................................ 53
Switching on headlamps ................. 54
Turn signals .................................... 55
Windshield wipers ........................... 55
Problems while driving.................... 57
Parking and locking .............................. 58
Parking brake ................................. 58
Switching off headlamps................. 59
Turning off the engine..................... 60
Releasing seat belts........................ 61
Locking ........................................... 61

Contents
Replacing SmartKey batteries............ 425
SmartKey / SmartKey with
KEYLESS-GO*............................... 426
Replacing bulbs ................................. 427
Bulbs ............................................ 428
Replacing bulbs for front lamps.... 430
Replacing bulbs for rear lamps ..... 432
Replacing wiper blades ...................... 434
Removing and
installing wiper blades .................. 434
Flat tire .............................................. 436
Preparing the vehicle.................... 436
Sealing tires with TIREFIT
(CLK 63 AMG only) ....................... 436
Mounting the Minispare wheel ..... 441
MOExtended system*................... 446
Battery ............................................... 447
Disconnecting the battery ............ 448
Removing the battery ................... 448
Charging and
reinstalling the battery ................. 449
Reconnecting the battery ............. 449
Jump starting ..................................... 450
Towing the vehicle ............................. 452
Towing the vehicle........................ 452
Installing towing eye bolt.............. 454Fuses ................................................. 456
Mainfuse box
in passenger compartment .......... 457
Fuse box
in engine compartment ................ 457
Fuse box
in trunk ........................................ 458
Technical data................................. 459
Parts service ...................................... 460
Warranty coverage............................. 461
Loss of Service and Warranty
Information Booklet ..................... 461
Identification labels ........................... 462
Layout of poly-V-belt drive ................. 464
CLK 350 / CLK 550 ..................... 464
CLK 63 AMG ................................ 464
Engine................................................ 465
Rims and tires.................................... 466
Same size tires ............................. 467
Mixed size tires ............................ 468
Minispare wheel ........................... 469
Electrical system ............................... 470Main dimensions and weights ........... 471
Main dimensions .......................... 471
Weights ........................................ 471
Fuels, coolants, lubricants, etc. ......... 472
Capacities .................................... 472
Engine oils ................................... 474
Engine oil additives ...................... 474
Air conditioning refrigerant .......... 474
Brake fluid.................................... 475
Premium unleaded gasoline ......... 475
Fuel requirements ........................ 476
Gasoline additives ........................ 476
Coolants ...................................... 477
Windshield washer system and
headlamp cleaning system*......... 479
Index................................................. 481

36 Getting started
Unlocking
Starter switch positions
SmartKey
Starter switch
0For removing SmartKey
The steering is locked when the
SmartKey is removed from the starter
switch.
1Power supply for some electrical
consumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position
All lamps (except low beam headlamp
indicator lamp, high beam headlamp in-
dicator lamp, and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the
instrument cluster fails to come on
when the ignition is switched on, have
it checked and replaced if necessary. If
a lamp in the instrument cluster re-
mains on after starting the engine or
comes on while driving, refer to “Lamps
in instrument cluster” (
page 366).
3Starting position
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.
iWhen you switch on the ignition, the
indicator and warning lamps (except low beam
headlamp indicator lamp, high beam headlamp
indicator lamp, and turn signal indicator lamps
unless activated) in the instrument cluster come
on. The indicator and warning lamps (except low
beam headlamp indicator lamp, high beam head-
lamp indicator lamp, and turn signal indicator
lamps if activated) will go out when the engine is
running. This indicates that the respective sys-
tems are operational.
iThe SmartKey can only be removed from the
starter switch with the gear selector lever in
positionP.
iIf the SmartKey is left in starter switch
position0 for an extended period of time, it can
no longer be turned in the switch. In this case,
the steering is locked. To unlock, remove
SmartKey from starter switch and reinsert.

37 Getting started
Unlocking
For more information, see “SmartKey”
(
page 98).
For information on starting the engine us-
ing the SmartKey, see “Starting with the
SmartKey” (
page 51).SmartKey with KEYLESS-GO*
Pressing the KEYLESS-GO start/stop but-
ton on the gear selector lever corresponds
to turning the SmartKey to the various
starter positions.
If you firmly depress the brake pedal dur-
ing pressing the KEYLESS-GO start/stop
button, the engine starts automatically.
You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey.
KEYLESS-GO start/stop button
1USA only
2Canada only
The SmartKey with KEYLESS-GO must be
located in the vehicle.
Make sure the gear selector lever is set
toP.
Do not depress the brake pedal.
!If the SmartKey cannot be turned in the
starter switch, the battery may not be sufficient-
ly charged.

Check the battery and charge it if necessary
(
page 447).

Get a jump start (page 450).
To prevent accelerated battery discharge or a
completely discharged battery, always remove
the SmartKey from the starter switch when the
engine is not in operation.
iThe function of the SmartKey overrules the
KEYLESS-GO function.

38 Getting started
Unlocking
Position 0
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have status0 (as with
SmartKey removed).
Position 1
Press the KEYLESS-GO start/stop
button once.
This supplies power for some electrical
consumers, such as seat adjustment.Ignition (or position 2)
Press the KEYLESS-GO start/stop but-
ton twice.
This supplies power for all electrical
consumers. All the lamps (except low
beam headlamp indicator lamp, high
beam headlamp indicator lamp, and
turn signal indicator lamps unless acti-
vated) in the instrument cluster come
on. If a lamp in the instrument cluster
fails to come on when the ignition is
switched on, have it checked and re-
placed if necessary. If a lamp in the in-
strument cluster remains on after
starting the engine or comes on while
driving, refer to “Lamps in instrument
cluster”(
page 366).For more information, see “SmartKey with
KEYLESS-GO*” (
page 101).
For information on starting the engine
using the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
page 51).
iIf you now press the KEYLESS-GO
start/stop button

once again, the ignition (position2) is
switched on.

twice, the power supply is again switched
off.
iIf you now press the KEYLESS-GO
start/stop button once, the power supply is
again switched off.
iWhen you switch on the ignition, the indica-
tor and warning lamps (except low beam head-
lamp indicator lamp, high beam headlamp
indicator lamp, and turn signal indicator lamps
unless activated) in the instrument cluster come
on. The indicator and warning lamps (except low
beam headlamp indicator lamp, high beam head-
lamp indicator lamp, and turn signal indicator
lamps if activated) will go out when the engine is
running. This indicates that the respective sys-
tems are operational.

50 Getting started
Driving
The seat belt presenter slides back:

right after you push the latch plate1
into buckle3 and hear it click.

after approximately 60 seconds if you
do not push latch plate 1 into
buckle3.

if your door is opened.

if you turn the SmartKey in the starter
switch to position 0.

if you release a front seat backrest and
fold it forward.
Starting the engine Automatic transmission
Gearshift pattern for automatic
transmission
PPark position with gear selector lever
lock
RReverse gear
NNeutral
DDrive position
For more information, see “Automatic
transmission” (
page 170).
Warning!G
The seat belt presenter must be retracted
while the vehicle is in motion. Only when the
seat belt presenter is retracted can the seat
belt be properly positioned on the body and
protect the occupant as intended.
Warning!G
Inhalation of exhaust gas is hazardous to
your health. All exhaust gas contains carbon
monoxide (CO), and inhaling it can cause un-
consciousness and possible 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.

51 Getting started
Driving
Starting with the SmartKey
Make sure the gear selector lever is set
toP.
Do not depress accelerator.
Turn the SmartKey in the starter switch
to position3 (
page 36) and release it
again immediately (“touch-start”).
The engine then starts automatically.
For information on turning off the engine
with the SmartKey, see (
page 60).Starting with KEYLESS-GO*
You can start your vehicle without the
SmartKey in the starter switch using the
KEYLESS-GO start/stop button on the
gear selector lever.
The SmartKey with KEYLESS-GO must be
located in the vehicle.
Make sure the gear selector lever is set
toP.
Do not depress accelerator.
Depress the brake pedal during the
starting procedure.
The gear selector lever lock is released.
KEYLESS-GO start/stop button
1USA only
2Canada only
Press KEYLESS-GO start/stop button
once.
The engine starts if the SmartKey with
KEYLESS-GO is in the vehicle.
For information on turning off the engine
with KEYLESS-GO, see “Turning off the en-
gine with KEYLESS-GO*” (
page 60).
Warning!G
As long as the SmartKey with KEYLESS-GO
i s i n y o u r v e h i c l e , t h e v e h i c l e c a n b e s t a rt e d .
Therefore, never leave children unattended
in the vehicle, as they could otherwise acci-
dentally start the engine.
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO with you and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle.

52 Getting started
Driving
Starting difficulties
If the SmartKey is left in starter switch
position0 for an extended period of time,
it can no longer be turned in the switch. In
this case, the steering is locked.
To unlock, remove SmartKey from
starter switch and reinsert.
If the engine does not start as described,
carry out the following steps:
If you are starting the engine with the
SmartKey, turn SmartKey in starter
switch to position0 and repeat starting
procedure.
If you are starting the engine with
KEYLESS-GO*: Close any doors that
may be open to allow for better detec-
tion of the SmartKey with
KEYLESS-GO*.
Or:
Start the engine with the SmartKey as
radio signals from another source may
be interfering with the SmartKey with
KEYLESS-GO*.
Repeat the starting procedure
(
page 50).
Remember that extended starting at-
tempts can drain the battery.
Get a jump start (page 450).
If the engine does not start after several
starting attempts, there could be a mal-
function in the engine electronics or in the
fuel supply system.
Notify an authorized Mercedes-Benz
Center.
Parking brake
1Release handle
2Parking brake pedal
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. Children could release the
parking brake, which could result in an acci-
dent and/or serious personal injury.