Page 417 of 498

415 Practical hints
Flat tire
Removing the wheel
1Alignment bolt
Unscrew upper-most wheel bolt and 
remove.
Replace this wheel bolt with alignment 
bolt1 supplied in the tool kit.
Remove the remaining bolts.
Remove the wheel.Mounting the spare wheel
1Wheel bolt for light alloy rims
2Wheel bolt for Minispare wheel, 
collapsible tire, or other steel rims 
(located in trunk with spare wheel)
Clean contact surfaces of wheel and 
wheel hub.
!Do not place wheel bolts in sand or dirt. 
This could result in damage to the bolts 
and wheel hub threads.
!Wheel bolts2 must be used when 
mounting the Minispare wheel, 
collapsible tire, or other steel rims. The 
use of any wheel bolts other than wheel 
bolts2 for the Minispare wheel, 
collapsible tire, or other steel rims will 
physically damage the vehicle’s 
brakes. 
!To avoid paint damage, place wheel flat 
against hub and hold it there while 
installing first wheel bolt.Warning!
G
Always replace wheel bolts that are 
damaged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be 
repaired immediately. Do not continue to 
drive under these circumstances! Contact 
an authorized Mercedes-Benz Center or call 
Roadside Assistance.
Incorrect wheel bolts or improperly tight-
ened wheel bolts can cause the wheel to 
come off. This could cause an accident. 
Make sure to use the correct wheel bolts. 
     
        
        Page 418 of 498
416 Practical hintsFlat tire
Guide spare wheel onto the alignment 
bolt and push it on.
Insert wheel bolts and tighten them 
slightly.
Unscrew the alignment bolt, install last 
wheel bolt and tighten slightly.Inflating the collapsible tire 
(CLK 55 AMG only)Warning!
G
Only use genuine equipment 
Mercedes-Benz wheel bolts. Other wheel 
bolts may come loose.
Do not tighten the wheel bolts when the 
vehicle is raised. Otherwise the vehicle 
could fall off the jack.
Warning!
G
Vehicles with collapsible tire 
(CLK 55 AMG only):
Inflate collapsible tire only after the wheel is 
properly mounted.
Inflate the collapsible tire using the electric 
pump (
page 416) before
 lowering the 
vehicle.
Warning!
G
Observe instructions on air pump label.!Do not lower the vehicle before 
inflating the collapsible tire. Otherwise 
the rim may be damaged. 
     
        
        Page 420 of 498

418 Practical hintsFlat tire
Detach the electric air pump.
Store the electrical plug and the air 
hose behind the flap and place the 
electric air pump back in the trunk.Lowering the vehicle
Lower vehicle by turning crank 
counterclockwise until vehicle is 
resting fully on its own weight.
Remove the jack.1 - 5Wheel bolts
Tighten the five wheel bolts evenly, 
following the diagonal sequence 
illustrated (1to5), until all bolts are 
tight. Observe a tightening torque 
of 80 lb-ft (110 Nm).
Warning!
G
Follow recommend 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.
Warning!
G
Vehicles with collapsible tire 
(CLK 55 AMG only):
Inflate collapsible tire only after the wheel is 
properly mounted.
Inflate the collapsible tire using the electric 
pump (
page 416) before
 lowering the ve-
hicle.
 
     
        
        Page 462 of 498

460 Technical termsTele Aid System
(T
elematic A
larm I
dentification on D
e-
mand)
The Tele Aid system consists of three 
types of response: automatic and man-
ual emergency, roadside assistance 
and information. Tele Aid is initially ac-
tivated by completing a subscriber 
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is 
charged, properly connected, not dam-
aged and cellular and GPS coverage is 
available.
Telematics*
A combination of the terms “telecom-
munications” and “informatics”.Tightening torque
Force times lever arm (e.g. a lug 
wrench) with which threaded fasteners 
such as wheel bolts are tightened.
Tire speed rating
Part of tire designation; indicates the 
speed range for which a tire is ap-
proved.
Traction
Force exerted by the vehicle on the 
road via the tires.VIN
(V
ehicle I
dentification N
umber)
The number set by the manufacturer 
and placed on the body to uniquely 
identify each vehicle produced.
Voice control system*
Voice control system for car phones, 
portable cell phones and audio sys-
tems (radio, CD, etc.).  
     
        
        Page 466 of 498

464 IndexBattery, vehicle 314, 420
Charging 422
Disconnecting 421
Messages in display 373
Reconnecting 422
Reinstalling 422
Removing 421
Bead 338
Bi-Xenon headlamps* 455
Block heater (Canada only) 343
Blocking
Rear window operation 82
Bolts
For spare wheel 396
Brake assist system (BAS) 455
Brake fluid 450
Message in display 374
Brake lamp bulbs 405
Brake lamp, high mounted 405
Brake pads
Message in display 374
Brakes 296
Warning lamp 355
Break-in period 294Bulbs, replacing 404
Additional turn signals 404
Backup lamps 405
Brake lamps 405
Fog lamps 404
Front lamps 404
High beam (Bi-Xenon*) 404
High beam (Halogen) 404
High beam flasher (Bi-Xenon*) 404
High beam flasher (Halogen) 404
High mounted brake lamp 405
License plate lamps 405, 410
Low beam (Bi-Xenon*) 404
Low beam (Halogen) 404
Parking lamps 404, 405, 407, 409
Rear fog lamp 405, 410
Side marker lamps 404, 409
Standing lamps 404, 405, 407, 409
Tail lamp assemblies 405, 410
Turn signal lamps 404, 405
Button
Audio system 210C
CAC (Customer Assistance Center) 455
Calling up
Maintenance service indicator 345
Range (distance to empty) 162
CAN system 455
Canceling
Cruise control 257
Capacities
Fuels, coolants, lubricants, etc. 447
Cargo tie-down rings 271
Catalytic converter 303
CD changer* 225
CD operation 225
CD player
Operating 144
Center console 27
Front passenger front 
air bag off indicator lamp 360
Lower part 28
Upper part 27
Centigrade
Setting temperature units 149 
     
        
        Page 481 of 498

479 Index
Parts service 434
PASS AIR BAG OFF indicator lamp see 
Front passenger front 
air bag off indicator lamp
Passenger compartment 302
Fuse box in 430
Interior lighting 132
Interior rear view mirror 41
Parcel net in 
front passenger footwell 274
Rear armrest 274
Storage bags, rear side 
of the front seats 274
Passenger safety see Occupant safety
Pedals 295
Phone book*
Loading 163
Quick search 164
Phone number*
Dialing 163
Redialing 164
Plastic and rubber parts
Cleaning 352
Playing
CDs 228Poly-V-belt drive 458
Layout 437
Positions (Memory function)
Recalling from memory 122
Storing into memory 122
Potential problems associated with under-
inflated and overinflated tires 327
Power assistance 295
Power seat
Adjusting backrest tilt 38
Adjusting head restraint height 38
Adjusting head restraint tilt 39
Adjusting seat cushion tilt 38
Adjusting seat height 38
Front seat head restraints 114
Seat fore and aft adjustment 38
Power tilt/sliding sunroof* 251
Closing 251, 401
Closing with KEYLESS-GO* 250, 253
Closing with SmartKey 253
Opening 251, 401
Opening with SmartKey 253
Stopping 252
Synchronizing 254Power train 458
Power washer 348
Power windows 247
Blocking of rear window operation 82
Side windows 247
Synchronizing 250
Practical hints
Collapsible tire 
(CLK 55 AMG only) 394
Collapsible wheel chock 392
First aid kit 389
Fuses 429
Lamp in center console 360
Lamps in instrument cluster 354
Messages in the display 362
Minispare wheel 
(except CLK 55 AMG) 393
Spare wheel bolts 396
Towing the vehicle 425
Unlocking/locking 
in an emergency 397
Vehicle jack 389, 391
Vehicle tool kit 389 
     
        
        Page 486 of 498

484 IndexSmartKey with KEYLESS-GO*
Checking the batteries 97, 103
Global locking and unlocking 101
Locking the vehicle 103
Loss of 105
Message in display 381
Messages in display 381
Remote controls 99
Restoring to factory setting 97, 102
Turning off the engine 57
Unlocking with 33
Snow chains 343
Soft keys
Audio system 210
Spare fuses 430
Spare parts service see Parts service
Spare wheel
Bolts 396
Mounting 413
Speed
Setting current 256
Speed settings
Cruise control 258
To last stored speed 
("Resume" function) 
in Cruise control 259Speed shift 459
Speedometer 25
Settings units 149
Speedometer display mode
Selecting 149
Split rear bench seat 267
SRS 68, 459
Indicator lamp 61, 359
Standing lamps 124
Replacing bulbs 404, 405, 407, 409
Standing water
Driving instructions 302
Starter switch 23, 34
Positions 34
Starting difficulties 48
Starting position 34
Starting the engine 46
Steering column
In/out adjustment 41
Up/down adjustment 41
Steering gear oil
Message in display 387Steering wheel 40
Adjusting 40
Buttons 26
Cleaning 351
Height adjustment 41
Steering wheel gearshift control 172
CLK 500 only 173
CLK 55 AMG only 174
Stolen vehicle
Tracking services 286
Stopping
Power tilt/sliding sunroof* 252
Windows 249
Storage bags 274
Storage compartments 272
Armrest 273
Cup holder 275
Glove box 272
Parcel net 274
Storage bags 274
Storing (Memory function)
Positions into memory 122
Storing tires 318 
     
        
        Page 488 of 498

486 IndexTele Aid 280
Emergency calls 281
Information 284
Initiating an 
emergency call manually 282
Messages in display 386
Remote door unlock 286
Roadside Assistance 283
Stolen vehicle tracking services 286
System self-check 280
Tele Aid System 280
Upgrade signals 285
Tele Aid System 460
Telematics* 460
Telephone* 26, 279
Answering a call 163
Dialing a number 
from the phone book 163
Ending a call 163
Hands-free microphone 29
Loading phone book* 163
Messages in display 388
Operating 162
Operation 232
Redialing 164Temperature
Display mode 149
Setting interior temperature 187
Setting units in display 149
Tires 326
Tie-down rings (Trunk) 271
Tightening torque 460
Tightening torque (Wheel bolts) 418
Time
Setting hours 152
Setting minutes 152
Time synchronization*
With head unit 151
TIN 340
Tire
Vehicle maximum load on 340
Tire and Loading Information 320
Tire and loading terminology 338
Tire care and maintenance 317
Tire Identification Number see TIN
Tire inflation pressure
Checking 307, 325, 327
Tire inspection 317
Tire load rating 340Tire ply composition 
and material used 340
Tire speed rating 300, 331, 340, 460
Tire terminology 338
Tire traction 299
Tires 316, 439
Direction of rotation 319
Driving instructions 298
Retreads 316
Rims and tires 439
Rotating 341
Service life 317
Temperature 326, 337
Tread depth 318, 342
Wear pattern 341
Winter 342
Tools 389
Tow-away alarm 27, 91
Arming 91
Disarming 91
Disarming for transport 91