2004 MERCEDES-BENZ CLK55AMG COUPE change wheel

359 Practical hints
Flat tire
Lifting the vehicle
Prevent the vehicle from rolling away
by blocking wheels with wheel chocks
(not included) or other sizable objects.
When changing wheel on a level surface:

Place one chock in front of and one be-
hind the wheel that is diagonally oppo-
site to the wheel being changed.
When changing wheel on a hill:

Place chocks on the downhill side
blocking both wheels of the other axle.1Wheel wrench

On wheel to be changed, loosen but do
not yet remove the wheel bolts (ap-
proximately one full turn with wrench).
The jack take-up brackets are located di-
rectly behind the front wheel housings and
in front of the rear wheel housings.
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use, es-
pecially on hills. Always try to use the jack
on a level surface. Make sure the jack arm is
fully seated in the jack take-up bracket. Al-
ways lower the vehicle onto sufficient ca-
pacity jackstands before working under the
vehicle.

360 Practical hintsFlat tire2Jack
3Take-up bracket
Place jack 2 on firm ground.

Position jack2 under take-up
bracket3 so that it is always vertical
(plumb-line) as seen from the side,
even if the vehicle is parked on an in-
cline.

Jack up the vehicle until the wheel is a
maximum of 1.2 in (3 cm) from the
ground. Never start engine while vehi-
cle is raised.Removing the wheel
1Alignment bolt

Unscrew upper-most wheel bolt and re-
move.

Replace this wheel bolt with alignment
bolt1 supplied in the tool kit.

Remove the remaining bolts.

Remove the wheel.
Warning!
G
The jack is intended only for lifting the vehi-
cle briefly for wheel changes. It is not suited
for performing maintenance work under the
vehicle.

Never start the engine when the vehicle
is raised.


Never lie down under the raised vehicle.
!Do not place wheel bolts in sand or dirt.
This could result in damage to the bolt
and wheel hub threads.

398 Technical termsCAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or
windshield wiping.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.COMAND
(C
ockpit M
anagement and D
ata Sys-
tem)
Information and operating center for
vehicle sound and communications
systems, including the radio and the
navigation system, as well as other op-
tional equipment (CD changer, tele-
phone, etc.).
Control system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to ad-
just settings.
Cruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.Distronic*
A driving convenience cruise control
system which helps the driver maintain
a pre-selected speed:


If there is no vehicle directly ahead,
the system operates in the same
way as conventional ->cruise con-
trol.


If a slower moving vehicle is ahead,
Distronic will reduce your vehicle
speed to the extent permitted by re-
duced throttle and up to 20% brak-
ing power to maintain the preset
minimum following distance.

400 Technical termsMemory function*
Used to store three individual seat,
steering wheel and mirror positions for
each SmartKey or, if so equipped,
KEYLESS-GO* feature.
Menu
The control system displays are ar-
ranged in menus. Each menu contains
a number of commands for particular
systems. In the Audio menu, for exam-
ple, you will find the commands
Select
radio station
or Operate CD player
.
Using commands, you can directly
change the settings for your vehicle.
MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. It is an indication of a gasoline's
ability to resist undesired detonation
(knocking). The average of both the
MON (Motor Octane Number) and
->RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.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.
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.
Parktronic (Parking assist)*
System which uses visual and acoustic
signals to assist the driver during park-
ing maneuvers.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing


engine


clutch/torque converter


transmission


transfer case


drive shaft


differential


axle shafts/axles
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.

401 Technical terms
Remote Vehicle Diagnostics
Transmission of vehicle data and cur-
rent location to the Mercedes-Benz
Customer Assistance Center for sub-
scribers to Tele Aid service.
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.
Restraint systems
Seat belts, belt tensioners, airbags and
child restraint systems. As indepen-
dent systems, their protective func-
tions complement one another.RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.Shift lock
When the vehicle is parked, this lock
prevents the gear selector lever from
being inadvertently moved out of
positionP without SmartKey turned
and brake pedal depressed.
Speedshift (CLK 55 AMG)
Steering wheel gearshift control. You
can change the gears yourself with the
steering wheel gearshift buttons.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.

406 IndexBattery, vehicle 288, 363
Charging 364
Disconnecting 364
Messages in display 320
Reconnecting 365
Reinstalling 364
Removing 364
Bi-Xenon headlamps* 397
Block heater* 295
Blocking
Rear window operation 74
Bolts
For Minispare wheel 342
Brake assist system (BAS) 397
Brake fluid 390
Message in display 321
Brake lamp bulbs 351
Brake lamp, high mounted 351
Brake pads
Message in display 321
Brakes 268
Warning lamp 307
Break-in period 266Bulbs, replacing 350
Additional turn signals 351
Backup lamps 351
Brake lamps 351
Fog lamps 351
Front lamps 351
High beam (Bi-Xenon*) 351
High beam (Halogen) 351
High beam flasher (Bi-Xenon*) 351
High beam flasher (Halogen) 351
High mounted brake lamp 351
License plate lamps 351, 356
Low beam (Bi-Xenon*) 351
Low beam (Halogen) 351
Parking lamps 351, 353, 355
Rear fog lamp 351
Rear fog lamps 356
Side marker lamps 351, 355
Standing lamps 351, 353, 355
Tail lamp assemblies 351, 356
Turn signal lamps 351
Button
Audio system 186C
CAC (Customer Assistance Center) 398
Calling up
Distronic* settings 137
Range (distance to empty) 153
Service indicator 297
CAN system 398
Canceling
Cruise control 219
Capacities
Fuels, coolants, lubricants, etc. 388
Cargo tie-down rings 243
Cassette operation
Playing cassettes 196
Cassette player
Operating 136
Catalytic converter 275
CD changer* 199
CD operation 199
CD player
Operating 136

433 Index
Vehicle jack 339
Vehicle lighting
Checking 280
Vehicle tool kit 337
Alignment bolt 337
Removing 337
Spare fuses 337
Towing eye bolt 337
Vehicle jack 337
Wheel bolts 337
Wheel wrench 337
Vehicle washing 300
VIN (Vehicle Identification Number) 402
Voice control system* 402
Hands-free microphone 27W
Warning sounds
Distance warning function* 229
Distronic* 223
Drivers seat belts 64
Parking brake 46
Warranty coverage 377
Washer fluid see
Windshield washer fluid
Washing the vehicle 298
Wear pattern (tires) 293
Weights 387
Wheel bolts
For Minispare wheel 342
Wheel change
Tightening torque 362
Wheels
Rotating 293
Tires and wheels 290
Window curtain airbags 64
Windows see Side windowsWindshield
Defogging 176
Refilling washer fluid 289
Replacing wiper blades 357
Washer fluid 289, 394
Washer system 394
Windshield washer fluid 394
Message in display 336
Mixing ratio 394
Refilling 289
Wiping with 49
Windshield washer system 394
Windshield wipers 48, 166
Fast wiper speed 49
Intermittent wiping 49
Replacing wiper blades 357
Single wipe 49
Switching on 48
Wiping with
windshield washer fluid 49
Winter driving 294
Block heater* 295
Snow chains 295
Tires 294