2004 MERCEDES-BENZ CLK CABRIOLET tyre pressure

4 Protection
ofthe environment
Introduction Protection of the environment
H
Enviro nment alno te Dai
mlerChrysl er's declared policy is one of
comprehensive environmental protection.
The objectives are for the natural resources
whi chform the basis of our existen ceon this
pl anet to beused sparingly an din a manner
whi chtakes the requirements of both nature
an d hu manity in to account.
Yo ut oo can make a contribution towards
protecting the environment by operating
your vehicle in an environmentally-responsi-
ble manner.
Fue lconsumption and the rate of en gine,
tra nsmission, brake and tyre wear dep end
on the following:
! the operating conditions of your vehicle
! your driving style
Yo u can influence bothofthese condition s. Therefore, bear the following in
mind:
Operating conditions
! Avoid drivi ngshort dista nces as this
inc reases fuel consumption.
! Make sure that tyre pressures are
alway scorrect.
! Do not carry any unnecessary we ight.
! Keep an eyeonthe vehic le's fuel con-
sumption.
! Remove roof racks once you no longer
need them.
! A regularly serviced vehicle will contrib-
ute to environmental protection. You
should there fore adhere to th eservice
intervals.
! Always have service work carried out at
a qualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre. Style of driving:
!
Do not depress the accelerator pedal
when starting the engine.
! Do not warm up the engine with the
vehicle st ationary.
! Drive carefu lly and maintain sufficient
dista nce from the vehic lein front.
! Avoid frequent ,powerful acce leratio n.
! Change gear ingood timeand use each
gear only up to 2
/ 3 of its maximum
engine speed.
! Switch off the engine in stationary traf-
fic.
Vehicle take-ba ck
Contact Mercedes-Benz on the following
phone numbers if you wish to return your
Me rcedes-Be nzto have it disp osed of in an
environmentally-responsible manner:
Germany: 0080 01777 7777
International: +4 96995307277 209en_d2.boo Seite
4Diens tag, 25. Mai 2004 7:26 19

68 Safety
Driving safety
systems
In this section, you will find information
about the following driving safety system s:
! ABS(A nti-lock B raking S ystem)
! BAS (B rake As sist)
! ESP (E lectronic S tability P rogram)
i In wintry conditions, use winter tyres (M+S
tyres), with snow chains if ne cessary. The maxi-
mu m effect of ABS, BAS, ESP and SBC can only
be ac hievedin this way. ABS regulates the brake
pressure insuch a
way that the wheels do not lock when you
brake. This allows you to continue steer-
ing.
ABS works from a speed of approxi mately
8 km /hupwards, regardless of road sur-
face conditions.
ABS works on slip pery road surfaces, even
when you only brake gent ly.
The - indicator lamp in the instrument
cluster ( =page 12 )light s up when you
turn the keyto position 2in the ignition
lock. It goes out when the engine isrun-
ning. This indicates that ABS is opera-
tional. Dr
iving safety systems G
Risk of accident The risk of an acci
dent increases especially if
you:
! drive too fast, particularly when cornering
and ona wet or slippery road surfa ce
! drive too close to th evehicle in front
The driving safety systems described in this
section are unable to reduce this risk or over-
ride the laws of physics.
For this reason, always adapt your driving
style to suit the current road and weather con-
ditions and maintain asuffici en tdistanc efrom
other road users and objectsonthe road. ABS
G
Risk of accident Do not depress the brake pedal several times
in
qu ick succession (pumping). Depress the
brake firmly and evenly .Pumping the brake
ped alreduces the braking effect. 209en_d2.boo Seite
68Diens tag, 25 .Mai 2004 7:26 19

111
Controls in detail
Operating system
The table shows you an example of menus for a vehicle with the COMAND* system installed. You ca nsee below the menus and their
individual functions. Menu
1 Menu
2 Menu
3 Menu
4 Menu
5 Menu
6 Menu
7 Menu
8 Standard
display Au
dio Naviga-
tion* Distronic* Malfunc-
tion
me
mory Settings Trip computer Te
lep hone*Commands /submenus Digital
speedometer Select a radio
station Activate
rou
te
guida nce Call up a
sett
ing Ca
ll up
malfunc-
tion mem-
ory Reset to factory
settings Consumption
statistics since
start Ent
erPIN Call up
ASSYST Operate the
CD player* /
CD changer* Instrument
cluster
submenu Consumption
statistics since
the
last reset Load the
telephone
book
Check the
engine oil
le
vel Time submenu Call up the range Look for a
name in the
telephone
book
Tyre pressure
lo
ss warning* Lighting
submenu
Vehicle
submenu
Heater*
submenu
Convenience*
submenu209en_d2.boo Seite
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112 Controls in detail
Operating systemi
The table overview of the menus contains
gene ric terms which are not always sho wninthe
operating system. The appropriate generic term
should make it easier for you tofamiliarise your-
se lf with the menu s.
The operating system displays the new function
range with the first menu function.
In the case of the Audio 10, Audio 10CD*
and Audio 30APS* audio systems, the
operating system displays the audio and
telephone menus in English. The display
for these menus is independent of the lan-
guage selected as your display language. In
its basic state, you can see the current
outside temperature and the trip meter in
the multi-function displ ay. This is called
the standard display.
1 Out side tem perature
2 Trip meter
If you see a different display, press the
è orÿ button repeatedly until the
sta ndard display appears. You can also change the standard display.
In place of the
outside temperature, you
can display the digita lspeedometer.
You can select the setting in theInstr.
cluster
submenu und ertheBasic display
function (
=page 120).
You can select the functions inthe stand-
ard display of the menu by pressing the
k orj buttons. Standard
display menu
P54.30-5195-31 Fu
nction Page
Call up the digital speedo
meter 113
Check the engine oil level 245
Tyre pressure loss warn
ing* 251
Call up ASSYST 265209en_d2.boo Seite
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211
Controls in detail
Driving systems
6 Press the cruise control lever briefly in
the direction of arrow 2.
Variable Speedtronic is deactivated.
The LIM indicator lamp goes out.
Cruise control or Distronic* is
selected.
Variab leSpeedtronic is deactivated auto-
matically:
! if yo udep ress the acceler ator pedal
beyond the pressure point (kickdown)
! and, atthe sam etime, your current
driv ing sp eed differs from the stored
speed by no more than 20 km /h Permanent Speedtronic
1
You can use the operating system to limit
the speed permanently to a value between
160 km /h(e.g. for driving on winter tyres)
an d the maximum speed.
If you wish to use Speedtronic to set a
speed limit for dr iving with winter tyres,
you must:
! deactivat ethe key-dependent pro-
gram ming (
=page 130)
or ! set the same speed limit for all keys
1O nly applies to the Fede ral Republic ofGe rmany It
is only possible to set or clear permanent
Speedtronic when the vehicle is stat ionary.
Permanent Speedtronic rema ins activ ated,
even if var iable Speedtronic is deactivated.
The stored speed is shown in the multi-
function displa yshortly before this speed
is reached.
You can not exceed the stored speed limit,
even if you depress the accelerator pedal
beyond the pressure point (kickdown).
Setting permanent Speedtronic
6 Make sure that the ignition is switched
on.
6 Press the èorÿ button repeat-
edly until you see theSettingsmenu in
the multi-function display
(
= page 116). G
Risk of accident It is not possible to deactivate Variable
Speedtronic by brak
ing. 209en_d2.boo Seite
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249
Operation
Tyres and wheels
! For safe tyreasons, Mercedes-Benz recom-
mend syou only use tyre swhich have bee nspe-
cially approved for yourvehicle byMercede s-
Benz. These tyres are specially suite dto your
vehicle's control systems, such as ABS or ESP.
Mercedes-Benz can accept no responsibility for
damage resulting from using tyr esother than
those approved for your ve hicle .Information
about tyr esmay be obtained from any
Mercedes-Benz Serv ice Centre.
If you use tyres other tha nthose which have
been test edand recommended for Mercedes-
Benz, cha racteristics suc hashandling, noi se
levels and fuel consum ption may beadversely
affected. Moreo ver, dimensional variations and
different tyre defo rmation characteristics when
running under load could cause the tyre to make
contact with thebo dywork or axle components.
The consequen cecould be damage to the tyre or
to the vehicl e. !
Retreaded tyres are neither tested nor
re commended for Mercedes-Benz vehicle s,as
previous damage cannot always be det ectedon
re treaded tyres. As aresul t, Me rced es-Benz
ca nnot guarantee driving safety.
Modification work on the brake system
and wheels is not permi tted, nor is the use
of spacer plates or brake dust shields. Any
such modifications invalidate the vehicle's
genera loperating permit. !
Only fit tyres and wheels of the same
type and make.
! Onlyfit ty res of the correct size to the
wh eels.
! Run in new tyres at moderate speeds
forthe first 10 0km.
! Check the tyres and wheels for damage
regularly, at least every 14 days. Dam-
aged rims could cause a loss of tyre
pre ssur ean d damag eto th e wheels.
! Check the tyre pressures regularly and
correct them if necessary – see Fuel
fil ler cap (
=pa ge 241).
! Do not continue to use tyres with se-
vere lyworn treads. Tyre grip dec reases
rapidly on wet roads below a tread
depth of 3 mm. Tyres and wheels
G
Risk of accident Only use wheels of the dimensions
stated in
the vehicle registration documents. If other
wheel sizes are used:
! the wheel brakes or chassis compo-
nents could be damaged
! wheel and tyre clearance scan be no
longer guaranteed Poi
nts to bear inmind 209en_d2.boo Seite
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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
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251
Operation
Tyres and wheels
Only correct the tyre pressures when the
tyres are cold.
The pressures of warm tyres should only
be corrected if the yare too low for the cur-
rent operat ing condi tions. Warm tyres al-
ways have higher tyre pressures than cold
tyres.
You will find a table oftyre pressures for
va rious operating conditions on the inside
of the veh icle's fuel filler flap. i
Tyre pressure values given for low loads are
mi nimum value swhich offer you good ride com-
fort charact eristics.
You can, however, also usethe value sfor higher
lo ads. These are permissible and do not adverse-
ly aff ect the running of thevehicle. However, ride
co mfort will be impaired to som edegree.
Als ocheck thet yre pressure of thespare
wheel*.
Ty re pressure changes by approximately
0. 1b ar for every 10 °C change in ambient
temperature. If you measure the tyre pres-
sures indoors where the temperature dif-
fers from the outside temperature, you will
have to correct the measured values ac-
cor dingly.
When the vehicle isdriven, the tyre tem-
perature, and wi thit the tyre pressure, in-
crease as a function of the road speed and
the load on the tyres. During the journey, the tyre pressure loss
warning system monitors the set tyre pres-
sure by comparing the speed of rotation of
the
wheels. This enables the system to de-
tect whether there has been a significant
drop in tyre pressure in one of the tyres. If
the rotation speed of a wheel changes be-
cause of a drop in tyre pressure, a corre-
sponding warning message appears in the
multi -function display. Tyre pr
essure G
Risk of accident If the press
urein a tyre drops repeatedly:
! inspect the tyre for foreign objects
! check whether the wheel or valve is
leaking H
Environmental note Ch
eck the tyre pressures regularly, at least
every 14days. Tyre pressure loss war
ning system 209en_d2.boo Seite
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