452 Practical hintsFlat tireMOExtended system*
The MOExtended system allows you to
continue driving your vehicle even if there
is a total loss of pressure in one or more
tires.
You may only use the MOExtended system
in conjunction with the Run Flat Indicator*.
!The maximum distance in emergency
mode depends on the vehicle’s load. It
is 30 miles (50 km) if the vehicle is par-
tially loaded and 18 miles (30 km) if the
vehicle is fully loaded.
The point at which the maximum driv-
ing distance begins in emergency
mode is when the warning message
appears in the multifunction display
indicating that there is a loss of tire
inflation pressure.
Do not exceed the maximum speed of
50 mph (80 km/h).
Warning!
G
In emergency mode, your vehicle’s driving
characteristics are diminished in such situa-
tions as:
driving around curves
while braking
while accelerating rapidly
Therefore, your driving style must be adapt-
ed accordingly. Avoid abrupt steering and
driving maneuvers, as well as driving over
obstacles (road curbs, potholes, or off-road
areas). This is especially important if the ve-
hicle is heavily loaded.
The emergency driving distance that can be
achieved greatly depends on the demands
placed on the vehicle. Depending on speed,
load, driving maneuvers, road conditions,
outside temperature, etc., the distance can
be significantly shorter or, if the vehicle is
driven cautiously, somewhat longer.
Do not continue driving in emergency mode
if
you notice knocking sounds
the vehicle starts to shake
smoke develops and you smell rubber
ESP
® is intervening continuously
you notice tears on the tire sidewalls
After driving in emergency mode, you must
have the rims inspected by an authorized
Mercedes-Benz Center to check if they are
suitable for further use. The failed tire must
be replaced in any case.iWhen replacing individual or all tires on
the vehicle, make sure only matching
tires marked with “MOExtended” are
mounted in the size specified for your
vehicle (
page 471).
472 Technical dataRims and tires
iFurther information on tires and rims is
available at any authorized
Mercedes-Benz Center. A placard with
the recommended tire inflation pres-
sures is located on the driver’s door
B-pillar. Some vehicles may have sup-
plemental tire inflation pressure infor-
mation for driving at high speeds
(page 340) or for vehicle loads less
than the maximum loaded vehicle con-
dition (
page 339). If such information
is provided, it can be found on the plac-
ard located on the inside of the fuel fill-
er flap. The tire inflation pressure
should be checked regularly and
should only be adjusted on cold tires.
Follow tire manufacturer’s mainte-
nance recommendation included with
vehicle.
iThe following pages also list the ap-
proved wheel rim and tire sizes for
equipping your vehicles with winter
tires. Winter tires are not available as
standard or optional factory equip-
ment, but can be purchased from an
authorized Mercedes-Benz Center.
Depending on vehicle model and the
standard or optional factory-equipped
wheel rim/tire configuration on your
vehicle (Appearance Package, Sport
Package etc.), equipping your vehicle
with winter tires approved for your
vehicle model may also require the
purchase of two or four wheel rims of
the recommended size for use with
these winter tires. See an authorized
Mercedes-Benz Center for more
information.
473 Technical data
Rims and tires
Same size tires
CLK 350
CLK 500
Rims (light alloy)
7.5 J x 17 H2
7.5 J x 17 H2
Wheel offset
1.42 in (36 mm)
1.45 in (37 mm)
Winter tires
1,3
1Radial-ply tires
225/45 R17 91 H M+S.
225/45 R17 91 H M+S.
Winter tires
1,2,3
2Must be used in conjunction with Run Flat Indicator* only. 3Not available as factory equipment.
225/45 R17 91 H M+S.MOExtended
225/45 R17 91 H M+S.MOExtended
475 Technical data
Rims and tires
Mixed size tires
CLK 350
CLK 500
CLK 55 AMG
Front axle:
Rims (light alloy)
7.5 J x 17 H2
7.5 J x 17 H2
7.5 J x 18 H2
Wheel offset
1.42 in (36 mm)
1.46 in (37 mm)
1.46 in (37 mm)
Summer tires
1
1Radial-ply tires
225/45 R17 91W
225/45 R17 91W
225/40 ZR18 92Y XL (Extra Load)
Summer tires
*1,2
2Must be used in conjunction with Run Flat Indicator* only.
225/45 R17 91W MOExtended
225/45 R17 91W MOExtended
-
Rear axle:
Rims (light alloy)
8.5 J x17 H2
8.5 J x17 H2
8.5 J x18 H2
Wheel offset
1.18 in (30 mm)
1.18 in (30 mm)
1.18 in (30 mm)
Summer tires
1,3
3Must not be used with snow chains.
245/40 R17 91W
245/40 ZR17 91W
255/35 ZR18 94Y XL (Extra Load)
Summer tires
*1,2,3
245/40 R17 91W MOExtended
245/40 R17 91W MOExtended
-
490 Technical termsMOE
(M
ercedes-Benz O
riginal E
xtended
equipment tires)
Tires with limited run-flat characteris-
tics. The MOExtended system allows
you to continue driving your vehicle
even if there is a total loss of pressure
in one or more tires.
Multifunction display
Display field in the speedometer used
to present information provided by the
control system.
Multifunction steering wheel
Steering wheel with buttons for operat-
ing the control system.
Normal occupant weight
(
page 356)
OCS
(Occupant C
lassification S
ystem)
The system automatically turns the
front passenger front air bag on or off
based on the classified occupant size
category determined by weight sensor
readings from the seat.Overspeed range
Engine speeds within the red marking
on the tachometer dial. Avoid this en-
gine speed range, as it may result in se-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all
components used to generate and
transmit motive power to the drive
axles, including
engine
clutch/torque converter
transmission
transfer case
drive shaft
differential
axle shafts/axlesProduction options weight
(
page 356)
Program mode selector switch
Used to switch the automatic transmis-
sion between regular operationS and
comfort operationC.
CLK 55 AMG with steering wheel gear-
shift control and manual shift program:
In addition toS andC (for regularS or
comfortC operation, see above) you
can use theM for manual shift
program.
PSI
(Pounds per S
quare I
nch)
(
page 356)
Recommended tire inflation pressure
(page 356)
REST*
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
507 Index
Service and Warranty Booklet
Loss of 467
Service and warranty information 10
Service intervals see
Maintenance, Service indicator
Service life, Tires 331
Service see Maintenance
Service System see
Maintenance service system
(U.S. vehicles) or FSS (Canada vehicles)
Service, Parts 466
Settings
Control system menus 142
Control system submenus 143
Date 154, 155
Factory, KEYLESS-GO* 103
Factory, SmartKey 98
Global, KEYLESS-GO* 103
Global, SmartKey 98
Individual vehicle 148
Memory function 124
Menus and submenus 141
Resetting all, Control system 148
Selective, KEYLESS-GO* 104
Selective, SmartKey 98
Time 153, 154Shelf below rear window, Cleaning 371
Shift lever position indicator 167
Shift lock 491
Shift program mode 172, 178
Shifting
Gear selector lever 48, 166
Gear selector lever positions 168
Shifting,
Automatic transmission 51, 166
Side marker lamps
Cleaning lenses 369
Messages in display 407
Replacing bulbs 438, 439
Side windows see Power windows
Sidewall 356
Ski sack* (Canada only) 273
Removing 276
Ski sack roller blind 273, 276
Unfolding and loading 273
Unloading and folding 275
SmartKey see Key, SmartKey 96
SmartKey with KEYLESS-GO* see
KEYLESS-GO*
Snow chains 360
Snow tires 359Soft top 255, 491
Cleaning 367
Emergency operations 425–433
Locking after raising/lowering 259
Luggage cover 262
Messages in display 410
Opening/closing 255
Opening/closing,
SmartKey 260, 261
Opening/closing,
Soft top switch 256, 257
Wind screen 263
Soft top switch 254, 256
Sound system* 209, 214
Spare fuses 413, 462
Spare parts service see Parts service
Spare wheel 416
Bolts 413, 418
Mounting 447
Sizes 476
Speedometer 25, 151
SRS 63, 70, 491
Indicator lamp 25, 63, 380
Message in display 409
Standard display, Selecting display 152
508 IndexStanding lamps 127
Replacing bulbs 438, 439, 441, 442
Standing water, Driving through 314
Starter switch 23, 34
Positions 34
Starting difficulties, Engine 50
Starting, Engine 48
Status line, Selecting display 152
Steering column 41
Steering gear oil
Message in display 410
Steering wheel 41
Buttons 26
Cleaning 371
Gearshift buttons 175, 176
Gearshift control 175, 176
One-touch gearshifting 174
Stolen Vehicle Recovery services 296
Storage compartments 278
Armrest, Front 281, 282
Armrest, Rear 283
Cup holder 283
Glove box 278
Parcel net 280
Storage bags 280
Storage box 279Storing
Tires 332
Submenus see
Control system submenus 141
Sun visors 184
Supplemental Restraint System see SRS
Switching off
Parktronic system* 272
Switching on
Parktronic system* 272
Symbols used in
this operator’s manual 15
T
Tachometer 25, 138
Overspeed range 138
Tail lamps
Cleaning lenses 369
Messages in display 407
Replacing bulbs 439, 443
Tar stains 365
Technical data
Air conditioning refrigerant 481
Brake fluid 481
Capacities fuels,
coolants, lubricants etc. 479, 480
Coolant 480, 484Electrical system 477
Engine 470
Engine oil 481
Engine oil additives 481
Fuel capacity 480
Fuel requirements 482
Gasoline additives 483
Lubricants 479
Premium unleaded gasoline 482
Rims and tires 471
Tires, Mixed size 475
Tires, Same size 473
Tires, Spare wheel sizes 476
Vehicle dimensions 478
Weights 478
Windshield washer and headlamp
cleaning* system 480, 486
Tele Aid 29, 289, 492
Call priority 294
Emergency calls 290
Hands-free microphone 29
Information 293
Initiating an
emergency call manually 291
Messages in display 409
Remote door unlock 295
509 Index
Roadside Assistance 292
SOS button 291
Stolen Vehicle
Recovery services 296
System self-check 290
Tele Aid System 289
Telematics* 492
Telephone* 26, 163, 288
Answering/ending a call 164
Hands-free microphone 29
Messages in display 411
Operation 163, 233
Phone book* 164
Redialing 165
TEL menu* 163
Temperature
Interior temperature 190, 200
Tightening torque, Wheel bolts 451, 492
Time 153
Time, Setting 153, 154
TIN 357
Tire and Loading Information
Placard 334
Terminology 355
Tire inflation pressure
Checking 339Tire inflation pressure see
the placard on the fuel filler flap
Tires 330, 471
Air pressure 355
Care and maintenance 331
Chains 360
Cleaning 332
Direction of rotation, Spinning 333
Driving instructions 311
Important notes,
Tire inflation pressure 340
Inflation pressure 320, 339, 341
Inflation pressure,
Information placard 339
Inspection 331
Load rating 357
MOExtended system* 452
Ply composition
and material used 357
Problems under-/overinflated 344
Retreads 330
Rims and tires 471
Rotation 358
Run Flat Indicator 342
Service life 331
Sizes 473Snow 359
Spare wheel 416, 447, 476
Speed rating 312, 348, 357
Storing 332
Temperature 354
Terminology 355
Tire Identification Number see TIN
Traction 312, 357
Tread 357
Tread depth 332, 359
Treadwear indicators 357
Wear pattern 358
Winter 359
Tools 413
Tow-away alarm 27, 94
Towing eye bolt 460
CLK 500, CLK 55 AMG 461
Towing the vehicle 458
Traction 312, 357
Transmission gear selector lever see
Gear selector lever
Transmission see Automatic transmission
Traveling abroad 315
Tread 357
Tread depth 332, 359
Treadwear indicators 357