2007 MERCEDES-BENZ CLK550 COUPE engine

Our company and staff congratulate you
on the purchase of your new
Mercedes-Benz.
Your selection of our product is a demon-
stration of your trust in our company
name. Furthermore, it exemplifies your
desire to own an automobile that will be as
easy as possible to operate and provide
years of service.
Your Mercedes-Benz represents the ef-
forts of many skilled engineers and crafts-
men. To help assure your driving pleasure,
and also the safety of you and your passen-
gers, we ask you to make a small invest-
ment of time:
Please read this manual carefully, then
return it to your vehicle where it will be
handy for your reference.

Please follow the recommendations
contained in this manual. They are de-
signed to acquaint you with the opera-
tion of your Mercedes-Benz.

Please pay attention to the warnings
and cautions contained in this manual.
They are designed to help improve the
safety of the vehicle operator and oc-
cupants.
We extend our best wishes for many miles
of safe, pleasurable driving.
Mercedes-Benz USA, LLC
A DaimlerChrysler Company

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 ................................. 53
Driving ............................................ 54
Switching on headlamps ................. 55
Turn signals .................................... 55
Windshield wipers ........................... 56
Problems while driving.................... 58
Parking and locking .............................. 59
Parking brake ................................. 59
Switching off headlamps................. 60
Turning off the engine..................... 60
Releasing seat belts........................ 61
Locking ........................................... 61

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

Contents
Replacing bulbs ................................. 406
Bulbs ............................................ 407
Replacing bulbs for front lamps.... 409
Replacing bulbs for rear lamps ..... 411
Replacing wiper blades ...................... 413
Removing and installing
wiper blades ................................. 413
Flat tire .............................................. 415
Preparing the vehicle.................... 415
Mounting the Minispare wheel ..... 416
MOExtended system*................... 420
Battery ............................................... 421
Disconnecting the battery ............ 422
Removing the battery ................... 423
Charging and reinstalling
the battery.................................... 423
Reconnecting the battery ............. 424
Jump starting ..................................... 425
Towing the vehicle ............................. 427
Towing the vehicle........................ 427
Installing towing eye bolt.............. 429
Fuses ................................................. 431
Main fuse box
in passenger compartment .......... 432
Fuse box in engine compartment . 433
Fuse box in trunk.......................... 434
Technical data................................. 435
Parts service ...................................... 436
Warranty coverage............................. 437
Loss of Service and Warranty
Information Booklet ..................... 437
Identification labels ........................... 438
Layout of poly-V-belt drive ................. 440
CLK 350/CLK 550 ....................... 440
Engine................................................ 441
Rims and tires.................................... 442
Same size tires ............................. 443
Mixed size tires ............................ 444
Minispare wheel ........................... 445
Electrical system ............................... 446
Main dimensions and weights............ 447
Main dimensions .......................... 447
Weights ........................................ 447
Fuels, coolants, lubricants, etc. ......... 448
Capacities .................................... 448
Engine oils.................................... 450
Engine oil additives ...................... 450
Air conditioning refrigerant .......... 450
Brake fluid .................................... 450
Premium unleaded gasoline ......... 451
Fuel requirements ........................ 451Gasoline additives ........................ 452
Coolants ...................................... 453
Windshield washer system and
headlamp cleaning system*......... 455
Index................................................. 457

13 Introduction
Operator’s Manual
Operating your vehicle outside the USA
or Canada
If you plan to operate your vehicle in for-
eign countries, please be aware that:

service facilities or replacement parts
may not be readily available,

unleaded gasoline for vehicles with cat-
alytic converters may not be available;
the use of leaded fuels will damage the
catalysts,

gasoline may have a considerably low-
er octane rating, and improper fuel can
cause engine damage.Certain Mercedes-Benz models are avail-
able for delivery in Europe under our Euro-
pean Delivery Program. For details, consult
an authorized Mercedes-Benz Center or
write to:
In the USA:
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada:
Mercedes-Benz Canada Inc.
European Delivery Department
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9

16 Introduction
Operating safety
Proper use of the vehicle
Proper use of the vehicle requires that you
are familiar with the following information
and rules:

the safety precautions in this manual

the “Technical data” section in this
manual

traffic rules and regulations

motor vehicle laws and safety
standards
Warning!G
Work improperly carried out on electronic
components and associated software could
cause them to cease functioning. Because
the vehicle’s electronic components are
interconnected, any modifications made
may produce an undesired effect on other
systems. Electronic malfunctions could
seriously impair the operating safety of your
vehicle.
See an authorized Mercedes-Benz Center
for repairs or modifications to electronic
components.
Other improper work or modifications on the
vehicle could also have a negative impact on
the operating safety of the vehicle.
Some safety systems only function while the
engine is running. You should therefore
never turn off the engine while driving.
Warning!G
Heavy blows against the vehicle underbody
or tires / wheels, for example when running
over an obstacle, road debris or a pothole,
may cause serious damage to and impair the
operating safety of your vehicle. If you feel a
sudden significant vibration or ride distur-
bance, or you suspect that damage to your
vehicle has occurred, you should turn on
your hazard warning flashers, carefully slow
down, and drive with caution to an area
which is a safe distance from the road.
Inspect the vehicle underbody and
tires / wheels for possible damage. If the
vehicle appears unsafe, have it towed to the
nearest authorized Mercedes-Benz Center
or other qualified maintenance or repair
facility for further inspection or repairs.
Warning!G
Various warning labels are attached to your
vehicle. These warning labels are intended
to make you and others aware of various
risks. You should not remove any of these
warning labels unless explicitly instructed to
do so by information on the label itself.
Removal of any of these labels may cause
you and others to be unaware of certain
risks which may result in an accident and/or
personal injury.

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

27 At a glance
Instrument cluster
ItemPage
1LLeft turn signal indica-
tor lamp55
2vESP® warning lamp362
3Speedometer
4Multifunction display141
5lDistance warning
lamp
Warning lamp without func-
tion. It illuminates with the ig-
nition on. It should go out
when the engine is running.
6KRight turn signal indi-
cator lamp55
7Coolant temperature indi-
cator with:139
•Coolant temperature
warning lamp361,
381
ItemPage
8Tachometer with:140
1Supplemental
Restraint System
(SRS) indicator lamp64,
365,
391
-Antilock Brake Sys-
tem (ABS) indicator
lamp356
363
AHigh beam headlamp
indicator lamp133
BLow beam headlamp
indicator lamp133
9Main odometer with:

Gear selector lever posi-
tion170

Program mode174
ItemPage
aClock with:156
;Brake warning lamp,
USA only358
3Brake warning lamp,
Canada only358
úEngine malfunction in-
dicator lamp,
USA only359
±Engine malfunction in-
dicator lamp,
Canada only359
bFuel display with:
AFuel reserve warning
lamp363
cReset button for:

Resetting trip odometer139

Adjusting instrument
cluster illumination138

Confirming new time set-
tings156