2004 MERCEDES-BENZ CLK CABRIOLET tow bar

46 Safety
Occupant safety
This section
will familiarise you with the
most important features of the restraint
systems inyour vehicle. In the event of an
accident, your vehicle may collide with
another object ,e.g. another vehicle. This
may result in rapid acceleration or deceler-
ation of your vehicle. During this acce lera-
tion or deceleration ,the vehicle occupants
will be moved in the opposite direction to
the force of the impact. Ther eis therefore
the risk of vehicle occupants injuring them-
selves on the vehicle interior or on parts of
the vehicle. The purpose of supplemental
restraint systems – first and foremost the
seat belts supplemen ted where necessary
by belt tensioners, belt force limiters and
airbags – is to minimise this ris kof injury.
However, seat belts and airbag sare gener-
ally unable to prevent injuries caused by
objects pe netrating the vehicle from the
outside. The most important restraint syst
ems are:
! Seat belts
! Restraint systems for children, since
they are the most effective means of
reducing the extent to which occu-
pants are moved in the event of an
accident
Additional protection isprovided by:
! The SRS (S upplementa
l R estraint
S yste
m)comprising:
! Belt tensioners
! Belt force limiters
! Airba gs
! Roll-over bars (Cabriolet)
i An air bag increases the degree ofprotection
for vehicle occupant swear ingas eat belt and is
therefore to be considered onl yas an additional
re strai ntsystem tothe seat be lt. Airbags are not
a substitute for wearing a seat belt correctl yat
all tim es. This is because, on the one hand, air-
bags are not triggered in all types of accid ent,as
in som esituations the irdeploy mentwould not
increase the protection enjoyed bythe vehicle
occ upants ,provided they are wearing their seat
be lts correct ly. i
And on the other hand, ai rbag deployment
only provid esincreased prote ction if the seat
bel tis worn co rrectly, because:
! theb elt helps to keep the vehicle occupant
in the best position inrelation to the airbag
! thebelt protects to a lar geextent the vehicle
oc cupant from bei ngpropelled towards the
force of impact, e.g. in the event of afrontal
collision, and is there fore better able to
reduce the risk ofinjury
In an accident in which anairbag is triggered, its
deployment will only enhanc ethe protectio npro-
vided by the seat belt, if the seat belt isworn cor-
rectly. Occupant safety
Restr
aint syste ms 209en_d2.boo Seite
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213
Controls in detail
Driving systems
PT S is activat ed automatically when
you switch on the ignition. PTS is deacti-
va ted when the speed exceeds 15 km /h.
The Parktronic system is reactivated when
the vehicle's speed falls below this.
PTS monitors the area around your vehicle
using six sensors in the front bumper and
four sensors in the rear bumper.
1 Sensors in the front bumper Ra
nge of the sensors
The sensors must be free from dirt, ice and
slush, otherwise they may not function cor-
rectly. Clean the sensors regularly, taking
care not to scratch or damage them. Fr
on t sensors
Rea rsensors
! Pay particular attention to objects above or
below sensors whe nparking, such asflower pots
or tra iler towbars. PTS doe snotdetect such
ob ject swhen theyare in th e immediat evicini ty.
Yo u could other wise damage the vehicle or
objects.
Sources ofultraso nicwaves, such as alorry's
co mpressed-air brakes or a pne umatic drill could
ca use PTS to malfunction.
P54.65-2427-31 P54.65-2428-31
P54.65-2429-31 Centre 100 cm
Corners 60 cm
Centre 120 cm
Corners 80 cm209en_d2.boo Seite
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262 Operation
Trailer towing
iThe maxim umpermissible weights are given
in the vehicle documents and onthe type plates
of the trail erand the trailer tow hitch .The lowest
value given is decisive.
Th emax imum trailer drawb arno sewe ight forthe
trailer towbar on th eball neck is 75 kg. The draw-
bar no seweight must not, however, exceed that
specified on the type plates for th etrailer tow
hit ch and the trailer. If you couple a trailer, the driving charac-
terist
ics of your vehicle change.
The vehicl e/trailer combination:
! is heavier
! is restricted in its acceleration and
gradie nt-climbing capability
! has a longer stopping distance
! is more susceptible to gusting cross-
winds
! demands more sensitive steeri ng
Fuel consumption is higher when towing a
trailer.
Tips for driving when to wing a trailer:
! We recom mend utilising the maximum
per missible drawb arnoseweigh t,and
always at least 50 kg.
! The vehicle's payload must be reduced
to compensate for the drawbar nose-
weight so that thema ximum per missi-
ble rear axle load is not exceeded. Have the entire trailer tow hitch ch
ecked at
a qualifie dspecialist workshop which has
the necessary specia list knowledge and
tools to carry out the work required.
Mercedes-Benz recomme nds that youuse a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety
or on safety-re lated systems must be car-
ried out at a qualified specialist workshop. Dr
iving tips G
Risk of accident Maximum care and atte
ntion iscalledfor
when coupling and decoupling a trailer.
Ma kesure that no-one is pre sent between
the trailer and the vehicle when the vehicle
is being reversed up to the trailer.
Do not uncouple a tr ailer with an overrun
brake when the brake is engaged. If you have coupled the trailer to the vehicle
incorr
ectly, there isa risk that the trailer
may break away.
Make sure that the following values have
been observed:
! Maximum permissi ble gross vehicle
weight
! Maximum permissible trailer drawbar
noseweight
! Maximum permissible trailer load
! Maximum permissible rearload on the
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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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381
Practical advice
Towing
Comply with national regulations when
towing.
Having the vehicle carried away on a trans-
porter or trailer is pre ferable to towing it
away. We recommend the use of a rigid
towbar if towing is nec essary.
You may on lytow the vehicle a maximum
of 50 km. A maximum towing speed of
50 km /hmust not be exceeded. i
Deactivate the automatic locking while driv-
in gfunction when towi ng. You could otherwise
beco me locked out when pushi ngortowing the
vehicle.
! Vehicles wit hautomatic transmission
must not be tow-started.
! If th eengine does not start, try jump-
starting it ( =page 379).
! If the vehicle does not start after
jump-starting, have it towed to a quali-
fied specialist work shop, e.g. to a
Mercedes-Benz Service Centre.
! If the vehicle is to be towed for a longer
distance, only tow it with the rear axle
raised. !
If the vehicle has suffere dtransmission
damage, only tow it with the propeller
shaft disconnected.
! Before tow ing the vehicle, make sure
the battery isconnected and charged.
Otherwise, you will not be able to
switch on the ignition and will have
no steering and braki ngassistance.
! Shift the transmission to position N. Opening the front cover
The fixing points for the bolt-on towing eye
are located in the bumpers. They are locat-
ed under the cover on the right-hand side
when
viewed in the direction of travel both
at the front and the rear.
! Only secure the tow cable or towbar to the
towing eye.The vehicle could otherwi sebe
damaged. Towing
G
Risk of accident Tow the vehicle using a rigid
towbar if:
! the engine will not start
! there is a malfunction in the power sup-
ply or the vehicle's electrical sy stem
There is no power assistance for the steer-
ing when the engine is not running. Signifi-
ca ntly greater force is then needed to steer
the vehicle and to brake.
When towing or tow-starting another vehi-
cle, its weight should not be greater than the
permissible gross weight of your ve hicle. Po
ints to bear in mind Fitting the towing eye209en_d2.boo Seite
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407
Te
chnical data
Trailer tow hitch Coupé
Cabr
iolet
1W ith minimum gradient-climbing ability from standstill 12%. Tra
iler loads CLK 200
KOMP
RESSOR CLK 200 CGI CLK 240 CLK 320 CLK 500 CLK 270 CDI
Permissib
letrailer load,
bra ked 1 1,500 kg 1,500 kg 1,500 kg 1,500 kg 1,500 kg 1,500 kg
Permissib
letrailer load,
unbraked 1 75
0 kg 750 kg 750 kg 75
0 kg 750 kg 750 kg
Maximum drawbar
noseweight 75 kg 75 kg 75 kg 75 kg 75 kg 75 kg
CLK 200
KOMP
RESSOR CLK 200 CGI CLK 240 CL
K320 CLK 500
Permissib
letrailer load,
bra ked 1 1,500 kg 1,500 kg 1,
500 kg 1,500 kg 1,500 kg
Permissib
letrailer load,
unbraked 1 750 kg 75
0 kg 750 kg 750 kg 75
0 kg Maximum drawbar
noseweight 75 kg 75 kg 75 kg 75 kg 75 kg209en_d2.boo Seite
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