2004 MERCEDES-BENZ CLK COUPE wheel bolt torque

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

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
373 Dienstag, 25. Mai 2004 7:26 19

427
Technical terms
TIR EFIT kit
Accessories for temp orary repairs to
flat tyres. The TIREFIT kit consists of a
filler bottle with sealant, a filler hose,
and a valve core extractor with valve
and an electric air pump.
To rque
Force exerted around a central axis of
rotation, e.g. when a wheel bolt is tight-
ened. For engines, the torque isthe
force transferred to the ->transmission.
To rque conver ter
This has the same function on vehicles
with ->autom atic tra nsmission as the
clutch has on vehicles with manual
->transmission.
Tr ac tion
Force which is transferred from the ve-
hicle to the road via the tyres and
whi chdescribes the grip. Traction mode
Acti veacceleration of the vehicle by
adding more throttle.
Transmission Component of the ->drive train that
converts the high speed of the engine
tolower rotation speeds at the drive
wheels and thus optimises the transfer
of engine ->torque to the wheels.
Wheel Term used in everyday language to de-
note ->rim, wheel disc and tyre.
Xe non headlamps*
Headlamps whi chuse an electric arc
in stead of a heated fil ament to gener-
ate a more intense light. 209en_d2.boo Seite
427 Dienstag, 25. Mai 2004 7:26 19

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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