ContentsSoft top .............................................. 244
Opening and closing the soft top . 244
Driving systems ................................. 255
Cruise control............................... 255
Parktronic system
(Parking assist)* ........................... 260
Loading .............................................. 264
Ski sack* ...................................... 264
Loading instructions ..................... 268
Useful features .................................. 269
Storage compartments................. 269
Ashtrays ....................................... 273
Cigarette lighter ........................... 274
Electrical outlet in the
rear passenger compartment ....... 275
Floormats* ................................... 275
Telephone*................................... 276
Tele Aid ........................................ 277
Garage door opener ..................... 284
Operation......................................... 289
The first 1 000 miles (1 500 km)......... 290
Driving instructions............................ 291
Drive sensibly – save fuel ............. 291
Drinking and driving ..................... 291
Pedals .......................................... 291
Power assistance ......................... 291
Brakes .......................................... 292
Driving off .................................... 294
Parking ......................................... 294
Tires ............................................. 295
Hydroplaning ................................ 295
Tire traction.................................. 296
Tire speed rating .......................... 296
Winter driving instructions ........... 297
Standing water ............................. 298
Passenger compartment .............. 299
Driving abroad.............................. 299
Control and operation
of radio transmitters .................... 299
Catalytic converter ....................... 300
Emission control .......................... 300
Coolant temperature .................... 301At the gas station .............................. 302
Refueling ...................................... 302
Check regularly and
before a long trip ......................... 304
Engine compartment ......................... 305
Hood ............................................ 305
Engine oil ..................................... 306
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 ................... 322
Checking tire inflation pressure ... 324
Tire labeling ................................. 326
Load identification ....................... 330
DOT, Tire Identification Number
(TIN) ............................................. 330
Maximum tire load ....................... 332
Maximum tire inflation pressure .. 332
Contents
Uniform Tire Quality Grading
Standards (U.S. vehicles) ............. 333
Tire ply material ........................... 335
Tire and loading terminology ........ 335
Rotating tires ............................... 339
Winter driving .................................... 340
Winter tires .................................. 340
Block heater* (Canada only) ........ 341
Snow chains................................. 341
Maintenance...................................... 342
Clearing the maintenance
service indicator........................... 343
Maintenance
service term exceeded ................. 343
Calling up the
maintenance service indicator ..... 343
Resetting the
maintenance service indicator ..... 344
Vehicle care ....................................... 345
Cleaning and care of vehicle ........ 345
Practical hints.................................. 353
What to do if …? ................................. 354
Lamps in instrument cluster ......... 354
Lamp in center console................. 361
Vehicle status messages
in the multifunction display........... 363
Where will I find...? ............................. 391
First aid kit.................................... 391
Vehicle tool kit .............................. 391
Minispare wheel............................ 394
Unlocking/locking in an emergency... 397
Unlocking the vehicle.................... 397
Locking the vehicle ....................... 398
Fuel filler flap ................................ 399
Manually unlocking
the gear selector lever .................. 400
Opening/closing in an emergency ..... 401
Operating roll bars manually ......... 401
Soft top emergency operation ...... 403
Replacing batteries in the SmartKey/
SmartKey with KEYLESS-GO* ............. 412
SmartKey ...................................... 412
SmartKey with KEYLESS-GO* ....... 413Replacing bulbs .................................. 414
Bulbs............................................. 414
Replacing bulbs for front lamps .... 416
Replacing bulbs for rear lamps ..... 420
Replacing wiper blades ...................... 421
Removing wiper blades ................. 421
Installing wiper blades .................. 421
Flat tire............................................... 422
Preparing the vehicle .................... 422
Mounting the Minispare wheel...... 423
Battery ............................................... 427
Disconnecting the battery ............ 428
Removing the battery ................... 428
Charging and reinstalling battery .. 428
Reconnecting the battery ............. 429
Jump starting...................................... 430
Towing the vehicle.............................. 432
Towing the vehicle ........................ 432
Installing towing eye bolt .............. 434
Fuses.................................................. 436
Aids for changing fuses ................ 436
Mainfuse box in passenger
compartment ................................ 437
Fuse box in engine compartment . 437
Fuse box in trunk .......................... 438
84 Safety and SecurityDriving safety systemsIn this section you will find information on
the following driving safety systems:
ABS (A
ntilock B
rake S
ystem)
BAS (B
rake A
ssist S
ystem)
ESP (E
lectronic S
tability P
rogram)
ABS
The Antilock Brake System (ABS) regulates
the brake pressure so that the wheels do
not lock during braking. This allows you to
maintain the ability to steer your vehicle.
The ABS is functional above a speed of ap-
proximately 5 mph (8 km/h) independent
of road surface conditions.
On slippery road surfaces, the ABS will
respond even to light brake pressure.
The - indicator lamp in the instrument
cluster (
page 24) comes on when you
switch on the ignition. It goes out when the
engine is running.
iIn winter operation, the maximum ef-
fectiveness of the ABS, the BAS, and
the ESP is only achieved with winter
tires (M + S tires) or snow chains as
required.
Warning!
G
The following factors increase the risk of
accidents:
Excessive speed, especially in turns
Wet and slippery road surfaces
Following another vehicle too closely
The ABS, BAS, and ESP cannot reduce this
risk.
Always adjust your driving style to the
prevailing road and weather conditions.
Warning!
G
Do not pump the brake pedal. Use firm,
steady brake pedal pressure instead. Pump-
ing the brake pedal defeats the purpose of
the ABS and significantly reduces braking
effectiveness.
289 Operation
The first 1 000 miles (1 500 km)
Driving instructions
At the gas station
Engine compartment
Tires and wheels
Winter driving
Maintenance
Vehicle care
296 OperationDriving instructionsTire traction
The safe speed on a wet, snow covered or
icy road is always lower than on a dry road.
You should pay particular attention to the
condition of the road whenever the outside
temperatures are close to the freezing
point.Mercedes-Benz recommends M+S rated
radial-ply tires with a minimum tread depth
of approximately
1/6in (4 mm) on all four
wheels for the winter season to ensure
normal balanced handling characteristics.
On packed snow, they can reduce your
stopping distance compared to summer
tires. Stopping distance, however, is still
considerably greater than when the road is
not covered with snow or ice. Exercise
appropriate caution.
Tire speed rating
Regardless of the tire speed rating, local
speed limits should be obeyed. Use
prudent driving speeds appropriate to
prevailing conditions.
Warning!
G
If ice has formed on the road, tire traction
will be substantially reduced. Under such
weather conditions, drive, steer and brake
with extreme caution.
!Avoid spinning of a drive wheel. This
may cause serious damage to the
drivetrain which is not covered by the
Mercedes-Benz Limited Warranty.
Warning!
G
Even when permitted by law, never operate
a vehicle at speeds greater than the maxi-
mum speed rating of the tires.
Exceeding the maximum speed for which
tires are rated can lead to sudden tire fail-
ure, causing loss of vehicle control and pos-
sibly resulting in an accident and/or
personal injury and possible death, for you
and for others.
297 Operation
Driving instructions
CLK 320 with Appearance Package
Your vehicle is factory equipped with
“W”-rated tires, which have a speed rating
of 168 mph (270 km/h).
An electronic speed limiter prevents your
vehicle from exceeding a speed of
130 mph (210 km/h).
CLK 500
Your vehicle is factory equipped with
“Y”-rated tires, which have a speed rating
of 186 mph (300 km/h).
An electronic speed limiter prevents your
vehicle from exceeding a speed of
130 mph (210 km/h).CLK 55 AMG
Your vehicle is factory equipped with
“Y”-rated tires, which have a speed rating
of 186 mph (300 km/h).
An electronic speed limiter prevents your
vehicle from exceeding a speed of
155 mph (250 km/h).
Winter driving instructions
The most important rule for slippery or icy
roads is to drive sensibly and to avoid
abrupt acceleration, braking and steering
maneuvers. Do not use the cruise control
system under such conditions.
When the vehicle is in danger of skidding,
move gear selector lever to position N. Try
to keep the vehicle under control by cor-
rective steering action.
iFor information on tire speed rating for
winter tires, see “Winter tires”
(page 340).
For additional general information on
tire speed markings on the sidewall,
see “Tire speed rating” (
page 326).
iFor information on driving with snow
chains, see “Snow chains”
(page 341).
Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of control loss.
313 Operation
Tires and wheels
Tires and wheels
See an authorized Mercedes-Benz Center
for information on tested and
recommended rims and tires for summer
and winter operation. They can also offer
advice concerning tire service and
purchase.
Retreaded tires are not tested or recom-
mended by Mercedes-Benz, since previous
damage cannot always be recognized on
retreads. The operating safety of the
vehicle cannot be assured when such tires
are used.
Important guidelines
Only use sets of tires and rims of the
same type and make.
Tires must be of the correct size for the
rim.
Break in new tires for approximately
60 miles (100 km) at moderate
speeds.
Regularly check the tires and rims for
damage. Dented or bent rims can
cause tire inflation pressure loss and
damage to the tire beads.
If vehicle is heavily loaded, check tire
inflation pressure and correct as
required.
Do not allow your tires to wear down
too far. Adhesion properties on wet
roads are sharply reduced at tread
depths under
1/8in (3 mm).
When replacing individual tires, you
should mount new tires on the front
wheels first (on vehicles with
same-sized wheels all around).
Warning!
G
Replace rims or tires with the same designa-
tion, manufacturer and type as shown on the
original part. See an authorized
Mercedes-Benz Center for further informa-
tion. If incorrectly sized rims and tires are
mounted:
The wheel brakes or suspension
components can be damaged.
The operating clearance of the wheels
and the tires may no longer be correct.
Warning!
G
Worn, old tires can cause accidents. If the
tire tread is badly worn, or if the tires have
sustained damage, replace them.
When replacing rims, only use genuine
Mercedes-Benz wheel bolts specified for the
particular rim type. Failure to do so can
result in the bolts loosening and possibly an
accident.
315 Operation
Tires and wheels
Tread depth
Do not allow your tires to wear down too
far. Adhesion properties on wet roads are
sharply reduced at tread depths under 1/8in (3 mm).
Treadwear indicators (TWI) are required by
law. These indicators are located in six
places on the tread circumference and
become visible at a tread depth of approx-
imately
1/16
in (1.6 mm), at which point
the tire is considered worn and should be
replaced.
Recommended minimum tire tread depth:
Summer tires
1/8in (3 mm)
Winter tires
1/6in (4 mm)
1TWI (T
read W
ear I
ndicator)
The treadwear indicator appears as a solid
band across the tread.Storing tires
Cleaning tires
Warning!
G
Although the applicable federal motor safety
laws consider a tire to be worn when the
treadwear indicators (TWI) become visible at
approximately
1/16in (1.6 mm), we recom-
mend that you do not allow your tires
to wear down to that level. As tread depth
approaches
1/8in (3 mm), the adhesion
properties on a wet road are sharply re-
duced.
Depending upon the weather and/or road
surface (conditions), the tire traction varies
widely.
!Keep unmounted tires in a cool, dry
place with as little exposure to light as
possible. Protect tires from contact
with oil, grease and gasoline.!Never use a round nozzle to power
wash tires. The intense jet of water can
result in damage to the tire.
Always replace a damaged tire.