2004 MERCEDES-BENZ SLK320 steering
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235 Practical hints
Flat tire
Flat tire
Your vehicle is equipped with a TIREFIT kit
(SLK 32 AMG only) (
page 214) or a
spare wheel with collapsible tire
(SLK 230 Kompressor and SLK 320 only)
(
page 213).
You can identify which TIREFIT kit
(SLK 32 AMG only) you have as follows:
The TIREFIT container of kit 1 is a
squeeze container.
The TIREFIT container of kit 2 is a rigid
container and includes a flange for filler
hose (outlet) and air hose (inlet).
Preparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.
Turn on hazard warning flasher.
Engage the steering wheel lock in the
straight ahead position and set the
parking brake.
Move the selector lever toP (manual
transmission to first or reverse gear).
Have any passenger exit the vehicle at
a safe distance from the roadway.
Sealing tires with TIREFIT kit 1
Small tire punctures, only those in the
tread, can be sealed with TIREFIT.
TIREFIT can be used in ambient tempera-
tures down to -4°F (-20°C).
The TIREFIT kit stored in the trunk
(page 214) contains the TIREFIT
container, a filler hose, a valve stem tool,
a valve core and a sticker.
Foreign objects (e.g. screws or nails)
should not be removed from the tire.
Attach the sticker where it will be easily
seen by the driver on the instrument
cluster.
Warning!
G
Keep TIREFIT away from sparks, open flame
or heat source.
Do not smoke.
Warning!
G
TIREFIT is a limited repair device. TIREFIT
cannot be used for:
cuts or punctures larger than approx.
0.16 in (4 mm)
on a flat tire, or a damaged wheel
tire damage caused by driving with ex-
tremely low tire pressure
Do not drive the vehicle under such circum-
stances.
Contact your nearest Mercedes-Benz
Center for assistance or call Roadside Assis-
tance.
Page 238 of 314
238 Practical hintsFlat tireInflating the tire
1Flap
2Air hose with pressure gauge and vent
screw
3Union nut
4Electrical plug
Open flap1 on air pump.
Pull out electrical plug4 and air hose
with pressure gauge2.
Screw union nut3 with air hose2 on
to the tire valve.
Insert electrical plug4 into vehicle
cigarette lighter socket.
Turn key in steering lock to position1
(page 29).
PressI on the electric air pump switch.
The electric air pump should now
switch on and inflate the tire.
After 5 minutes, the pressure gauge must
display at least 26 psi (1.8 bar). The air
hose and the union nut can become hot
during inflation. Please exercise appropri-
ate caution.
If this tire pressure is not attained, turn
off the electric air pump, detach the air
hose from the tire valve, and again
drive vehicle back and forth very slowly
approximately 30 ft (10 m).
This serves to better distribute the
TIREFIT sealant material inside the tire.
Inflate the tire again.
Press0 on the electric air pump
switch.
Turn key in steering lock to position0.
The electric air pump should now be
switched off.
Warning!
G
Observe safety instructions on air pump la-
bel.
!Do not exceed the maximum pressure
of 36 psi (2.5 bar).
!Do not operate the electric air pump
longer than eight minutes without in-
terruption. Otherwise it may overheat.
You may operate the air pump again af-
ter it has cooled off.
Page 242 of 314
242 Practical hintsFlat tire
Unscrew the valve cap from tire
valve7.
Screw filler hose onto tire valve7.
Insert electrical plug4 into vehicle
cigarette lighter socket.
Turn key in steering lock to position1
(page 29).
PressI on electric air pump switch8.
The electric air pump should now
switch on and inflate the tire.After 5 minutes, the pressure gauge must
display at least 26 psi (1.8 bar). The air
hose can become hot during inflation.
Please exercise appropriate caution.
If this tire pressure is not attained, turn
off the electric air pump, detach the fill-
er hose from the tire valve, and drive
vehicle back and forth very slowly ap-
proximately 30 ft (10 m).
This serves to better distribute the
TIREFIT sealant material inside the tire.
Unscrew the air pump’s air hose5
from flange6 of the TIREFIT contain-
er.
Screw air hose5 onto tire valve7
and inflate the tire again.
After attaining a tire pressure of 26 psi
(1.8 bar), press0 on electric air pump
switch8.
The electric air pump should now be
switched off.
Turn key in steering lock to position0
(page 29).
iIf sealant has leaked out, let it dry. You
can then peel it off.!Do not operate the electric air pump
longer than eight minutes without in-
terruption. Otherwise it may overheat.
You may operate the air pump again af-
ter it has cooled off.
Warning!
G
If a tire pressure of 26 psi (1.8 bar) is not at-
tained, tire is too severely damaged for
TIREFIT to provide a reliable tire repair.
In this case, TIREFIT cannot properly seal
the tire.
Do not drive the vehicle.
Contact the nearest Mercedes-Benz Center
or call Roadside Assistance.
Page 249 of 314
249 Practical hints
Flat tire
Before storing the jack in the trunk, it
should be fully collapsed, with pin and
handle folded in.
Inflating the collapsible spare tire
Take the electric air pump out of the
trunk (
page 214).
1Flap
2Air hose with pressure gauge and vent
screw
3Union nut
4Electrical plug
Open flap1 on air pump.
Pull out electrical plug4 and air hose
with pressure gauge2.
Unscrew valve cap from spare wheel
tire valve.
Screw union nut3 with air hose2 on
to the tire valve.
Insert electrical plug4 into vehicle
cigarette lighter socket.
Turn key in steering lock to position1
(page 29).
PressI on the electric air pump switch.
The electric air pump should now
switch on and inflate the tire.
Inflate the collapsible tire to around
36 psi (2.5 bar).This takes about 5 minutes for the col-
lapsible spare tire. Air hose2 and
union nut3 can become hot duration
inflation.
Press0 on the electric air pump
switch.
The electric air pump should now be
switched off.
Turn key in steering lock to position0.
If the tire pressure is above 36 psi
(2.5 bar) release excess tire pressure
using the vent screw.
Warning!
G
Observe instructions on air pump label.
!Do not operate the electric air pump
longer than 8 minutes without interrup-
tion. Otherwise it may overheat.
You may operate the air pump again af-
ter it has cooled off.
Page 251 of 314
251 Practical hints
Battery
Battery
The battery is located in the engine com-
partment on the right-hand side.
1Battery
2Positive terminal
3Negative terminal
Warning!
G
Failure to follow these instructions can re-
sult in severe injury or death.
Observe all safety instructions and precau-
tions when handling automotive batteries,
see “Battery” (
page 183).
Never lean over batteries while connecting,
you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.
!Never loosen or detach battery termi-
nal clamps while the engine is running
or the key is in the steering lock. Other-
wise the alternator and other electronic
components could be severely dam-
aged.
Have the battery checked regularly by
an authorized Mercedes-Benz Center.
Refer to Service Booklet for mainte-
nance intervals or contact your autho-
rized Mercedes-Benz Center for further
information.Warning!
G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.
Page 252 of 314
252 Practical hintsBatteryDisconnecting the battery
Depress parking brake firmly or move
gear selector lever to positionP (man-
ual transmission to Neutral).
Turn off all electrical consumers.
Remove key from steering lock.
Open the hood (
page 174).
Disconnect the battery negative lead.
Remove the cover2 from the positive
terminal.
Disconnect the battery positive lead.
Removing the battery
Remove the screw on the swivel bar.
Remove the swivel bar.
Take out the battery.
Charging and reinstalling battery
Charge battery in accordance with the
instructions of the battery charger
manufacturer.
Reinstall the charged battery. Follow
the previously described steps in re-
verse order.
Reconnecting the battery
Turn off all electrical consumers.
Connect the positive lead and fasten its
cover2.
Connect the negative lead.
Warning!
G
With a disconnected battery
you will no longer be able to turn the key
in the steering lock
automatic transmission: the gear selec-
tor lever will remain locked in positionP
Warning!
G
Never charge a battery while still installed in
the vehicle. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.
!Never invert the terminal connections!!The battery, its filler caps and the vent
tube must always be securely installed
when the vehicle is in operation.
Page 257 of 314
257 Practical hints
Towing the vehicle
Warning!
G
Prior to towing the vehicle with all wheels on
the ground, make certain that the key is in
starter switch position2.
If the key is left in starter switch position 0
for an extended period of time, it can no
longer be turned in the switch. In this case,
the steering is locked. To unlock, remove
key from starter switch and reinsert.
If circumstances require towing the vehicle
with all wheels on the ground, always tow
with a tow bar if:
the engine will not run
there is a malfunction in the power sup-
ply or in the vehicle’s electrical system
as that will be necessary to adequately con-
trol the towed vehicle.
Warning!
G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle. Adapt your driving accordingly.iTo signal turns while being towed with
the hazard warning flasher in use, turn
key in starter switch to position2 and
activate the combination switch for the
left or right turn signal in the usual
manner – only the selected turn signal
will operate.
Upon canceling the turn signal, the haz-
ard warning flasher will operate again.
!When towing the vehicle with all wheels
on the ground, please note the follow-
ing:
With the automatic central locking acti-
vated and the key in starter switch
position2, the vehicle doors lock if the
left front wheel as well as the right rear
wheel are turning at vehicle speeds of
approx. 9 mph (15 km / h) or more.
Switch off the tow-away alarm
(page 72).
To prevent the vehicle door locks from
locking, deactivate the automatic cen-
tral locking (
page 79).
Towing of the vehicle should only be
done using the properly installed tow-
ing eye bolt. Never attach tow cable,
tow rope or tow rod to the vehicle chas-
sis, frame or suspension parts.
Page 267 of 314
267 Technical data
Layout of poly-V-belt drive
Layout of poly-V-belt drive
SLK 230 KompressorThe SLK 230 Kompressor has two
poly-V-belts (belt one shown in purple/belt
two shown in black).1Coolant pump
2Automatic belt tensioner
3Power steering pump
4Air conditioning compressor
5Crankshaft
6Automatic belt tensioner
7Generator (alternator)
8Supercharger
SLK 320
1Automatic belt tensioner
2Power steering pump
3Air conditioner compressor
4Crankshaft
5Coolant pump
6Generator (alternator)
7Idler pulley
SLK 32 AMG
1Idler pulley
2Idler pulley
3Supercharger
4Automatic belt tensioner
5Power steering pump
6Air conditioner compressor
7Crankshaft
8Coolant pump
9Generator (alternator)