2003 MERCEDES-BENZ CLK55AMG COUPE inflation pressure

ContentsOperation......................................... 239
The first 1000 miles (1500 km) ......... 240
Driving instructions ............................ 241
Drive sensibly – save fuel ............. 241
Drinking and driving ..................... 241
Pedals .......................................... 241
Power assistance ......................... 241
Brakes .......................................... 242
Driving off..................................... 243
Parking ......................................... 243
Tires ............................................. 244
Hydroplaning ................................ 245
Tire traction .................................. 245
Tire speed rating .......................... 245
Winter driving instructions ........... 246
Standing water ............................. 247
Passenger compartment .............. 247
Driving abroad .............................. 247
Control and operation of
radio transmitters......................... 248
Catalytic converter ....................... 248
Emission control........................... 249
Coolant temperature .................... 250At the gas station .............................. 251
Check regularly and
before a long trip.......................... 252
Engine compartment ......................... 253
Hood ............................................ 253
Engine oil ..................................... 254
Transmission fluid level ................ 256
Coolant ........................................ 256
Battery ......................................... 258
Windshield washer system and
headlamp cleaning system* ......... 259
Tires and wheels ................................ 260
Important guidelines .................... 261
Life of tires ................................... 261
Direction of rotation ..................... 261
Checking tire inflation pressure ... 262
Rotating wheels ........................... 263
Winter driving .................................... 264
Winter tires .................................. 264
Block heater* ............................... 265
Snow chains ................................. 265Maintenance...................................... 266
Clearing the service indicator ...... 266
Service term exceeded ................ 266
Calling up the service indicator .... 267
Resetting the service indicator .... 267
Vehicle care....................................... 268
Cleaning and care of vehicle ........ 268

252 OperationAt the gas station
Check regularly and before a long trip
1Coolant level
More information on coolant can be
found in the “Operation” section on
(
page 256).
2Brake fluid (fuse box cover removed)
More information on brake fluid can be
found in the “Technical data” section
on (page 353).
3Windshield washer and headlamp
cleaning system
More information on refilling the reser-
voir can be found in the “Operation”
section on (
page 259).Engine oil level
More information on engine oil can be
found in the “Operation” section on
(
page 254).
Vehicle lighting
Check function and cleanliness.More infor-
mation on replacing light bulbs can be
found in the “Practical hints” section on
(page 316).
Tire inflation pressure
More information on tire inflate pressure
can be found in the “Operation” section on
(page 262).
Opening hood see (
page 253).
Removing fuse box cover see
(
page 337).
Exterior lamp switch see (
page 105)
iLeaving the engine running and the fuel
cap open can cause the
?
lamp to
illuminate.
More information can be found in the
“Practical hints” section (
page 280).

262 OperationTires and wheelsChecking tire inflation pressure
Correct the tire pressure only when tires
are cold.
Regularly check your tire pressure at inter-
vals of no more than 14 days.
If the tires are warm you should only cor-
rect the tire pressure if it is too low for cur-
rent operating conditions.
A table on the fuel filler flap lists the spec-
ified tire inflation pressures for warm and
cold tires as well as for various operating
conditions.Tire pressure changes by approximately
1.5 psi (0.1 bar) per 18°F (10°C) of air
temperature change. Keep this in mind
when checking tire pressure where the
temperature is different from the outside
temperature.
Tire temperature and tire pressure are also
increased while driving, depending on the
driving speed and the tire load.Check the spare tire periodically for condi-
tion and inflation. Spare tires will age and
become worn over time even if never used,
and thus should be inspected and replaced
when necessary.Warning!
G
If the tire pressure repeatedly drops

check the tires for punctures from for-
eign objects


check to see whether air is leaking from
the valves or from around the rim
iThe pressures listed for light loads are
minimum values offering high driving
comfort.
Increased inflation pressures listed for
heavier loads may also be used for light
loads. These higher pressures produce
favorable handling characteristics. The
ride of the vehicle, however, will be
somewhat harder. Never exceed the
max. values or inflate tires below the
min. values listed in the fuel filler flap.
Warning!
G
Follow recommended inflation pressures.
Do not overinflate tires. Overinflating tires
can result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes,
etc.
Do not underinflate tires. Underinflated tires
wear unevenly, adversely affect handling
and fuel economy, and are more likely to fail
from being overheated.
Do not overload the tires by exceeding the
specified vehicle capacity weight (as indicat-
ed by the label on the pillar in the driver’s
door opening). Overloading the tires can
overheat them, possibly causing a blowout.

263 Operation
Tires and wheels
Rotating wheels
On vehicles with the same wheel size all
around, wheels can be rotated every 3000
to 6000 miles (5000 to 10000 km), or
sooner if necessary, according to the de-
gree of tire wear. The same direction of tire
rotation must be retained.
Rotate the wheels before the characteris-
tic tire wear pattern becomes visible
(shoulder wear on front wheels and tread
center wear on rear wheels).
Thoroughly clean the inner side of the
wheels after each rotation. Check and en-
sure proper tire inflation pressure.Warning!
G
Rotate front and rear wheels only if they are
of the same size.
Warning!
G
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
80 ft.lb. (110 Nm).
Only use genuine Mercedes-Benz wheel
bolts specified for your vehicle's rims.

345 Technical data
Rims and tires
Rims and tires
Only use tires and rims which have been
specifically developed for your vehicle and
tested and approved by Mercedes-Benz.
Other tires and rims can have detrimental
effects, such as

poor handling characteristics


increased noise


increased fuel consumption
Same size tires
!Moreover, tires and rims not approved
by Mercedes-Benz may, under load, ex-
hibit dimensional variations and differ-
ent tire deformation characteristics
that could cause them to come into
contact with the vehicle body or axle
parts. Damage to the tires or the vehi-
cle may be the result.
iFurther information on tires and rims is
available at any authorized
Mercedes-Benz Center. A tire inflation
pressure table is located on the fuel fill-
er cap of the vehicle. The tire pressure
should be checked regularly and
should only be adjusted on cold tires.
Follow tire manufacturer’s mainte-
nance recommendation included with
vehicle.
CLK 320
CLK 500 /
CLK 320 with Sport Package*
CLK 55 AMG
Rims (light alloy)
7J x 16 H2
71/2 J x 17 H2
71/2 Jx17H2
Wheel offset
1.45 in (37 mm)
1.45 in (37 mm)
1.45 in (37 mm)
Winter tires (radial-ply
tires)
205/55 R 16 91 H M+S
225/45 R 17 91 H M+S
1
1Must not be used with snow chains.
225 / 45 R17 91 H M+S
1

368 IndexAir pressure see Tire inflation pressure 262
Air recirculation mode 160
Activating 160
Deactivating 160
Air vents, rear passenger compartment
Adjustable 164
Air volume
Adjusting 159
AIRBAG OFF indicator lamp 282
Airbags 57
BabySmart
TM airbag deactivation sys-
tem 361
BabySmartTM deactivation system 68
Children 58
Front 61
Passenger 61
Safety guidelines 60
Side impact 61
Window curtain 61
Alarm
Audible 73, 80
Canceling 80
Visual 80
Alarm system
Anti-theft 80Alignment bolt 326
Alignment bolt (vehicle tool kit) 361
Anticorrosion/antifreeze 356
Antiglare
Automatic 149
Antilock brake system (ABS) 361
Anti-theft alarm system
Arming 80
Canceling alarm 80
Disarming 80
Anti-theft systems 79
Anti-theft alarm system 80
Immobilizer 79
Tow-away alarm 81
Aquaplaning see Hydroplaning 245
Armrest
Storage spaces 221
Ashtray 223
At the gas station 251
ATF (automatic transmission fluid) 256
AUDIO menu 119
Selecting radio station 120Audio system
Audio and telephone, operation 165
Button and soft key operation 168
Cassette mode 174
CD mode 178
Operating and display elements 166
Operating safety 165
Operation 168
Radio mode 171
Switching off 168
Switching on 168
Telephone operation 182
Audio systems 165
Automatic antiglare for rear view mirror
149
Automatic central locking
Activating/deactivating (control sys-
tem) 133
Automatic climate control 154
Adjusting air distribution 158
Air recirculation mode 160
Defrosting 159
Rear window defroster 162
Setting the temperature 157
Automatic headlamp mode 106

390 IndexTelephone* 24, 226
Answering a call 139
Dialing a number from the phone book
139
Ending a call 139
Hands-free microphone 27
Loading phone book* 139
Messages in display 301
Operating 138
Operation 182
Redialing 140
Temperature
Display mode 126
Grades of tires 359
Setting interior temperature 157
Setting units in display 126
Tires 262
Tie-down rings (Trunk) 218
Tightening torque 366
Tightening torque (Wheel bolts) 328
Time
Setting hours 128
Setting minutes 129
Tire inflation pressure
Checking 252, 262
Tire speed rating 245, 366Tire traction 245
Tires 260, 345
Consumer information 358
Direction of rotation 261
Driving instructions 244
Retreads 260
Rims and tires 345
Service life 261
Temperature 262
Temperature grades 359
Tread depth 264
Wear pattern 263
Winter 264
Tools 305
Tow-away alarm 25, 81
Arming 81
Disarming 81
Disarming for transport 81
Towing eye bolt (vehicle tool kit)
Installing 336
Towing the vehicle 334
Tracking services
For stolen vehicle 235
Traction 145, 358, 366
Transmission see Automatic transmission
256Transmission selector lever 313
Unlocking manually 313
Traveling abroad 247
Tread depth (tires) 264
Tread wear 358
Trip computer 136
Trip odometer
Resetting 112
Trunk
Auxiliary fuse box 338
Closing 94
Lock button, KEYLESS-GO* 91
Locking separately 94
Message in display 301
Opening 87
Opening from inside vehicle 92
Tie-down rings 218
Trunk lid 87
Trunk lock 311
Unlocking in an emergency 311
Unlocking separately 95
Unlocking with KEYLESS-GO* 90
Unlocking with SmartKey 86
Trunk lid emergency release 93
Turn signal lamps
Replacing bulbs 317