2004 MERCEDES-BENZ CLK COUPE wheel bolts

250 Operation
Tyres and wheels
!
Fit single new tyres on the front wheels
first if tyres of the same size are fitted
on the front and rear wheels.
! Remove the rust from corr oded steel
wh eels and repaint them.
! Replace the tyres at least every
6years, irrespective of their degree
of wear.
! Adjust the tyre pressures if the vehicle
is laden – see Fuel filler cap
(= page 241).
! Storetyres ina cool, dry place, preferably in
the dark. Protect the tyres from oil, grease,
petrol and diesel.
Do not clean your wheels with acidic wheel
cl eaners since these could corrode the wheel
bolts. Tyres with a specified direction of rotation
offer additional benefi
ts,e.g. with regard
to aquaplaning. These benefits are only
available to you ifthe correct direction of
rotation isobserved.
An arrow on the sidewa llof the tyre indi-
cates its correct direction of rotation.
i A spare wheel* may also be fi tted against
th edirection of rotatio n. The MO
Extended run-flat system allows
you to cont inue driving your vehicle, even
if there is a complete loss of air in one or
more tyres.
You can only use the MO Extendedrun-flat
system in conjunction with the tyre pres-
sure loss warning system.
For notes about driving in the event of a
flat tyre, see the Practical advice section
( = page 373). Direc
tion of rotation MOExtended
run-flat system* 209en_d2.boo Seite
250 Dienstag, 25. Mai 2004 7:26 19

254 Operation
Tyres and wheels
Although you may be able to control the
vehicle fully at a given speed on a dry road
surface, you must reduce your speed on a
wet or icy road surface to achieve the
same level of road safety.
You should pay particular attention to the
road conditionswhen the temperatures
are around freezing.
If ice has formed on the road surface (e.g.
due to fog), a thin film of water quickly
forms on the ice when you brake, which
greatly reduces tyre grip. You should drive
part icularly carefully in such weather con-
ditio ns. G
Risk of accident Have th
etight ening torque checked after a
wheel cha ngeat a qual ified specialist work-
shop which has the necessary specialist
knowl edge and tools to carry out the work
require d.Mercedes -Benz rec ommends that
you use a Mercedes-Benz Service Cen tre for
this purpose. In particular ,work relevant to
safety or on safety-relate dsystems must be
carried out at a qualified specialist work-
shop.
The wheel bolts coul dwork loose if they are
not tightened to a torque of 110 Nm.
Mercedes-Benz rec ommends tha t,for safety
reasons, you only use suitable wheel bolts
whi chhave been approved for Mercedes-
Benz. Tyre grip209en_d2.boo Seite
254 Dienstag, 25. Mai 2004 7:26 19

370 Practical advice
Flat tyre
Mak
esure that the base of the jack is di-
rectly below the jacking point.
6 Continue to turn the crank unt ilthe tyre
is raised a maximum of 3cm from the
ground. 4
Centring pin
6 Undo the uppermost wheel bolt com-
pletely.
6 In place of the whee lbolt, screw cen-
tring pin 4fromthe vehicle tool kit
into the thread.
6 Undo the remaining wheel bol ts.
! Do not place wheel bolts in sand or on a dirty
surface. Th is could cau sedamag eto the bolts
and wheel hub threads.
6 Remove the wheel. Fitting a new wheel
i
Vehicle swith "Minispare" emergency spare
wheel:
Onl yuse the wheel bolts provided in the vehicle
tool kit for th e"Minispare" emerge ncyspare
wheel.
6 Clean the wheel and wheel hub contact
surfaces. G
Risk of accident Position the jack on th
eappropriate jacking
point only.
If you do not position th ejack correctly, the
vehicle may topple off the jack. P 40.00-2040-31 P 40.10-2601-31 neu G
Risk of accident Only use the wheel bolts suppli
ed. G
Risk of accident Replace damaged or corrod
edwheel bolts.
Never oil or grease wheel bolts. 209en_d2.boo Seite
370 Dienstag, 25. Mai 2004 7:26 19

371
Practical advice
Flat tyre
Wheel bolts
5 Wheel boltsf or li ght-alloy whee ls
6 Wheel bolts for steel spare wheel 6
Slide the wheel onto the hub with the
aid of the centring pin and push it on. G
Risk of accident If a wheel hub thread
isdamaged, you must
not drive the vehicle any further. Inform a
qualified specialist workshop which has the
necessary specialist knowledge and tools to
carry out the work required. Merced es-Benz
reco mmends that you use a Merce des-Benz
Service Centre for this purpose or contact
"Service 24h" .In particular, work relevant to
safety or on safety-related systems must be
carried out at a qualified specialist work-
shop.
Only use wheel bolts which are intended for
the wheel and the vehicle. Mercedes-Benz
recommends that, for safety reasons, you
only use wheel bolts whic hhave been ap-
proved for Mercedes-Benz .Other bolts
coul dwork loose.
Do not tighten the wheel bolts when the ve-
hicle is jacked up. The vehicle could other-
wise tip over. P 40.10-3299-31 neu
P 40.10-2738-31
==209en_d2.boo Seite
371 Dienstag, 25. Mai 2004 7:26 19

372 Practical advice
Flat tyre
6
Screw in the wheel bolts and tighten
them fin ger-tight.
6 Undo the centring pin and screw in the
last wheel bolt. Inflating th
ecollapsible emergency
spare wheel* with the electric air pump, CL
K55AMG
1 Flap
2 Switch
3 Connector
4 Pressure gauge with pressure release
screw
5 Union nut 6
Remove the electric air pump from the
stowage well under the boo tfloor
(= page 278).
6 Open flap 1on the electric air pump.
6 Pull connector 3and air hose 4out
of the housing along with the pressure
gauge.
6 Make sure that the pressure release
screw onpressure gauge 4is closed.
6 Unscrew the valve cap from the tyre
valve.
6 Screw air hose union nut 5onto the
tyre valve.
6 Insert connector 3into the cigarette
lighter socket ( =page 230).
6 Turn the key to position 1in the igni-
tion lock (
=page 23). P 40.10-2739-31
G
Risk of injury Comply with the manufacturer's safety in-
structions as see
non the sticker on the
electric air pump. P40.10-3298-31_von R171209en_d2.boo Seite
372 Dienstag, 25. Mai 2004 7:26 19

373
Practical advice
Flat tyre
6 Press electr icair pump switch 2toI.
The electric air pump isswitched on.
The tyre ispumped up.
! Do not run the electric air pump for longer
than six minutes without a break, oth erwise it
may overheat.
The air pump can be used again once it has
cooled down.
6 Pum pup the tyre to 2.5 bar (this takes
about fi veminutes).
6 Press the switch on the electric air
pump to 0.
The electric air pump isswitched off.
If a tyre pressure of 2.5 bar is exceeded:
6 Open the pressure release screw on
pressure gauge 4until the tyre pres-
sure is adjusted.
6 Return the air pump to the stowage
well and close it. Lowering the vehicle
6
Lower the vehicle. To do this, turn the
crank anti-clockwise until the vehicle is
once again firmly on the ground.
6 Put the jack to one side.
1 –5 Wheel bo lts
6 Tighten the wheel bolts evenly inthe
sequence indicated. The tightening
torque must be 110 Nm. 6
Turn the jack back to its initial position
and return it and the rest of the vehicle
toolkit to the boot.
You can only use the MOE emergency run-
flat system in conjunction with the tyre
pressure loss warning.
! The maximum distance you may cover in
run-flat mode depends on the vehicle load. It is
50 km if the vehicle is partially laden and 30 km
if it is fully laden.
The maximum distance that may be drive nin run-
flat mode begins from the time the tyre pressure
loss warning appears in the multi-function dis-
play.
Yo u must not exceed a maximum speed of
80 km /h. P 40.10-2740-31 G
Risk of accident The wheel bolts may work loose if they are
not tightene dto a tightening torque of
11 0Nm . For this reason, you should have
the tightening torque checked as soonas
possible after a wheel change. MOE
emergencyrun-fl atsyst em* 209en_d2.boo Seite
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442 Index
Pa rktronic . . ..... . . ..... . . . ..215
Trailer turn signals Display messag e.. . . . .... . . . ..298
Transport (vehicle) . . . ..... . . . ..384
Trip computer . . . .. . . .. . . . . . . ..131
Trip meter . . ..... . . . ..... . . . ..106
Turn signals . .. . . . . . . .. . . . ..4 0,357
Changing the front turn
signal lamps . ..... . . ..... . . . ..359
Display messag e.. . . . .... . . . ..299
Turning lamps . . . .. . . .. . . . . 103, 357
Tyre grip .. . . . .... . . . ..... . . . ..254
Tyre pressure ..... . . . ..... . . . ..251
Display messag e.. . . . .... . . . ..304
Tyre pressure loss war ning
system ... . . . .... . . . ..... . . . ..251
Tyre pressure table . . . ..... . . . ..399
Tyres . . . .. . . .. . . . . . . .. . . . . . . ..249
Dir ection of rotation . . . ..... . . . .250
MOExtended run-flat
system . . . . . . . . . . . . . . . . . . 250, 373
Technic aldata . . . . . . .. . . . 399–403 U
Unlocking From the inside
(central locking switch) . . . . ...... 89
Unlocking button
Boot . . .. . . . . . . .. . . . . . . .. . . . .. 86
Unlocking inan emer gency
Boot . . .. . . . . . . .. . . . . . . .. . . . .341
Vehic le.. . . . . . . .. . . . . . ..341, 342 V
Variable Spe edtronic . .. . . . . . . . .207
Veh icle
Cleaning . . . . . . . .. . . . . . . .. . . . .268
Leavin git pa rked up . . . . . . .. . . . .340
Towing .. . . . . . . .. . . . . . . .. . . . .381
Tow- starting . . . . .. . . . . . . .. . . . .384
Trans porting . . . . .. . . . . . . .. . . . .384
Unlocking in an
emergency ... . . . .... . . . . 34 1, 342
Ve hicle dimensi ons. . . . ...... . . .404
Vehicle electronics . . . ....... . . .391
Vehicle ide ntific ation number . . ..393
Veh icle tool kit . . .. . . . . . . .. . . . .276
Ve hicle weight . . . ..... . . . ..... .408
Visco sity .. . . . . . . .. . . . . . . .. . . . .414 W
Warning signal Au dib le.. . . . . .... . . . . .... . . . .318
Warning trian gle ... . . . . .... . . . .274
Washer flu id
Di splay message .. . . . . .... . . . .307
Washer fluid container . .... . . . . .248
Wearing seat belts . . . . .....32, 316
Wheel bolts . . .... . . . . . .... . . . .371
Ti ghte ning torque .. . . . . .... . . . .373
Wheel wrench .. . . . . . . . . . . 277, 278
Wheels ... . . . . .... . . . . .... . . . .249
Int erch anging . .... . . . . .... . . . .253
Technical data . . . . . . . .. . . 399–403
Windowbags . .... . . . . . .... . . . . .57
Windows Cleaning the windscreen . . . . . . . .268
Mi sted up (Thermatic) . . .... . . . .159
Mi sted up (Thermot ronic ).... . . . .169
Si de windows . .... . . . . .... . . . .178
Windscreen Cleaning . . . . . .... . . . . .... . . . .268
Windscre enwasher fluid .... . . . .416
To pping up . . . .... . . . . .... . . . .248
Windscre enwasher reservoir . . ..416
Ca pacity . . . . . .... . . . . .... . . . .416 209en_d2.boo Seite
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