2003 MERCEDES-BENZ CLK500 COUPE change wheel

324 Practical hintsFlat tire
Flat tirePreparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.

Turn on the hazard warning flashers.

Engage the steering wheel lock in the
straight ahead position and set the
parking brake.

Move the selector lever toP.

Have any passenger exit the vehicle at
a safe distance from the roadway.
Mounting the Minispare wheel
In case of a flat tire, you may temporarily
use the spare wheel when observing the
following restrictions:

Do not exceed a vehicle speed of
50 mph (80 km/h).


Drive to the nearest tire repair facility
to have the flat tire repaired or re-
placed as appropriate.


Do not operate the vehicle with more
than one spare wheel mounted.Preparing the vehicle
Prepare the vehicle as described on
(
page 324).

Take the wheel wrench and the jack
out of the trunk (
page 307).

Take the Minispare wheel out of the
trunk (
page 307).
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.
Warning!
G
The dimensions of the Minispare wheel are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a Minispare wheel
mounted.
The spare wheel should only be used tempo-
rarily, and should be replaced with a regular
road wheel as quickly as possible.


325 Practical hints
Flat tire
1Wheel wrench
On whee l to b e change d, loos en b ut 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.2Jack
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.
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 that the jack
arm is fully seated in the jack take-up brack-
et. Always lower the vehicle onto sufficient
capacity jackstands before working under
the vehicle.

326 Practical hintsFlat tire
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
4Alignment bolt

Unscrew upper-most wheel bolt and re-
move.

Replace this wheel bolt with alignment
bolt4 supplied in the tool kit.

Remove the remaining bolts.

Remove the wheel.Mounting the new wheel
5Wheel bolt for light alloy rims
6Wheel bolt for Minispare wheel or other
steel rims

Clean contact surfaces of wheel and
wheel hub.
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.
!Wheel bolts6 must be used when
mounting the Minispare wheel. The use
of any wheel bolts other than wheel
bolts 6 for the Minispare will physically
damage the vehicle's brakes.

362 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 navi-
gation, as well as for other optional
equipment (CD changer, telephone,
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.
DTR
(->Distronic*)

364 Technical termsMemory function*
Used to store three individual seat,
steering wheel and mirror positions for
each key or, if so equipped, KEY-
LESS-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 AN-
TI-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
of the tachometer dial. Avoid this en-
gi ne sp ee d ra nge , a s it m ay re su lt i n s e-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Parktronic*
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
winter operationW.
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.

365 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 transmission selector le-
ver from being inadvertently moved out
of positionP without key turned and
brake pedal depressed.
Speedshift
Steering wheel gearshift control and
manual shift program. In the manual
shift program mode you can change
the gears yourself on the steering
wheel or by using the selector lever.
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.

392 IndexVehicle jack 306
Vehicle lighting
Checking 252
Vehicle tool kit 305
Alignment bolt 305
Spare fuses 305
Special fuse puller 305
Towing eye bolt 305
Vehicle jack 305
Wheel bolts 305
Wheel wrench 305
Vehicle washing 270
VIN (Vehicle Identification Number) 366
Voice control system* 366
Voice control system*
Hands-free microphone 27
W
Warning lamps see Lamps, indicator and
warning
Warning sounds
Distance warning function* 204
Distronic* 198
Drivers seat belts 62
Parking brake 45
Warranty coverage 341
Washer fluid see Windshield washer fluidWashing the vehicle 268
Wear pattern (tires) 263
Weights 350
Wheel change
Tightening torque 328
Wheels
Rotating 263
Tires and wheels 260
Window curtain airbags 61
Windows see Side windows
Windshield
Defogging 158
Refilling washer fluid 259
Replacing wiper blades 323
Washer fluid 259, 357
Washer system 357
Windshield washer fluid 357
Message in display 301
Mixing ratio 357
Refilling 259
Wiping with 48
Windshield washer system 357
Windshield wipers 47, 151
Fast wiper speed 48
Intermittent wiping 48
Replacing wiper blades 323Single wipe 48
Switching on 47
Wiping with windshield washer fluid 48
Winter driving 264
Block heater* 265
Snow chains 265
Tires 264
Transmission program mode 145, 147
Winter driving instructions 246
Winter tires 264
Wiper blades
Cleaning 272
Installing 323
Removing 323
Replacing 323
Wiping
And washing simultaneously 48
Interval 48
With windshield washer fluid 48
X
Xenon headlamps
Bi-Xenon 361