2005 MERCEDES-BENZ SLK CLASS tire pressure

354 Practical hintsWhat to do if …Display messages
Possible cause
Possible solution
Run Flat Indicator
inactive
The Run Flat Indicator is malfunc-
tioning.

Have the Run Flat Indicator checked by an autho-
rized Mercedes-Benz Center.
Low pressure mode
Check tires
max. Speed 50 mph(Canada:max. Speed 80 km/h
)
The pressure is too low in one or
more tires.

Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers. Observe
the traffic situation around you.

Check and adjust the tire inflation pressure as re-
quired (
page 308).

If necessary, change the wheel (
page 388).

Reactivate the Run Flat Indicator after adjusting
the tire inflation pressure values (
page 284).
Check tires
Then reactivate
Run Flat Indicator
There was a warning message about
a loss in tire inflation pressure and
the Run Flat Indicator has not been
reactivated yet.

Make sure that the correct tire inflation pressure
is set for each tire.

Then reactivate the Run Flat Indicator.
Run Flat Indicator
unavailable
The Run Flat Indicator has been
switched off due to an error.

Have the Run Flat Indicator checked by an autho-
rized Mercedes-Benz Center.
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.

388 Practical hintsFlat tirePreparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.

Turn on the hazard warning flashers.

Turn the steering wheel so that the
front wheels are in a straight ahead po-
sition.

Set the parking brake (
page 49).

Move the gear selector lever* toP
(manual transmission to first or reverse
gear).

Turn off the engine (
page 58).

Remove the SmartKey from the starter
switch.

Have any passenger exit the vehicle at
a safe distance from the roadway.
Mounting the spare wheel
iOpen door only when conditions are
safe to do so.
Warning!
G
The dimensions of the spare wheel with col-
lapsible tire are different from those of the
road wheels. As a result, the vehicle han-
dling characteristics change when driving
with a spare wheel with collapsible tire
mounted. Adapt your driving style accord-
ingly.
The spare wheel with collapsible tire is for
temporary use only. When driving with spare
wheel with collapsible tire mounted, ensure
proper tire inflation pressure and do not ex-
ceed vehicle speed of 50 mph (80 km/h).
Drive to the nearest Mercedes-Benz Center
as soon as possible to have the spare wheel
with collapsible tire replaced with a regular
road wheel.
Never operate the vehicle with more than
one spare wheel with collapsible tire mount-
ed.

393 Practical hints
Flat tire
Inflating the collapsible tire
1Flap
2Air pump switch
3Electrical plug
4Air hose with pressure gauge and vent
screw
5Union nut

Take the electric air pump out of the
trunk (
page 369).

Open flap1 on air pump.

Pull out electrical plug3 and air hose
with pressure gauge4.

Close vent screw on air hose4.

Remove the valve cap from the tire
valve.

Screw air hose4 with union nut5
onto the collapsible tire valve.

Make sure electric air pump switch2
is set to0.

Insert electrical plug3 into vehicle
cigarette lighter socket.

Turn the SmartKey in the starter switch
to position1.
Warning!
G
Inflate collapsible tire only after the wheel is
properly mounted.
Inflate the collapsible tire using the electric
pump (
page 369) before
lowering the ve-
hicle.
Warning!
G
Observe instructions on air pump label.!Do not lower the vehicle before inflat-
ing the collapsible tire. Otherwise the
rim may be damaged.


394 Practical hintsFlat tire
PressI on electric air pump switch2.
The electric air pump switches on and
inflates the collapsible tire.

Inflate the collapsible tire to approxi-
mately 51 psi (3.5 bar).
This takes about five minutes for the
collapsible tire. Air hose4 and union
nut5 can become hot during infla-
tion. Exercise proper caution to avoid
burning yourself when using the equip-
ment.

Press0 on electric air pump switch2.

Turn the SmartKey in the starter switch
to position0.
The electric air pump should now be
switched off.

If the tire inflation pressure is above
51 psi (3.5 bar), release excess tire in-
flation pressure using the vent screw
on air hose4.

Detach the electric air pump.

Reinstall collapsible tire valve cap.

Store electrical plug3 and air
hose4 behind flap 1 and place the
electric air pump back in the trunk.
!Do not operate the electric air pump
longer than six minutes without inter-
ruption. Otherwise it may overheat.
You may operate the electric air pump
again after it has cooled off.
Warning!
G
Follow recommended tire inflation
pressures.
Do not underinflate tires. Underinflated tires
wear excessively and / or unevenly,
adversely affect handling and fuel economy,
and are more likely to fail from being over-
heated.
Do not overinflate tires. Overinflated tires
can adversely affect handling and ride
comfort, wear unevenly, increase stopping
distance, and result in sudden deflation
(blowout) because they are more likely to
become punctured or damaged by road
debris, potholes etc.


413 Technical data
Rims and tires
Rims and tires
!
Only use tires which have been specifi-
cally developed for your vehicle and
tested and approved by
Mercedes-Benz. Tires approved by
Mercedes-Benz are developed to pro-
vide best possible performance in con-
junction with the driving safety
systems on your vehicle such as ABS or
ESP. Tires specially developed for your
vehicle and tested and approved by
Mercedes-Benz can be identified by
finding the following on the tire’s side-
wall:

MO = M
ercedes-Benz O
riginal
equipment tires


MOE = M
ercedes-Benz O
riginal
E
xtended (tires with limited run-flat
characteristics) original equipment
tires
Using tires other than those approved
by Mercedes-Benz may result in dam-
age that is not covered by the
Mercedes-Benz Limited Warranty.
iFor information on driving with
MOExtended tires*, see
“MOExtendedsystem” (
page 312).
!Using tires other than those approved
by Mercedes-Benz can have detrimen-
tal effects, such as

poor handling characteristics


increased noise


increased fuel consumption
Moreover, tires and rims not approved
by Mercedes-Benz may, under load,
exhibit dimensional variations and dif-
ferent tire deformation characteristics
that could cause them to come into
contact with the vehicle body or axle
parts. Damage to the tires or the vehi-
cle may be the result.
iFurther information on tires and rims is
available at any authorized
Mercedes-Benz Center. A placard with
the recommended tire inflation pres-
sures is located on the driver’s door
B-pillar. Some vehicles may have sup-
plemental tire inflation pressure infor-
mation for driving at high speeds
(page 307) or for vehicle loads less
than the maximum loaded vehicle con-
dition. If such information is provided,
it can be found on the placard located
on the inside of the fuel filler flap. The
tire inflation pressure should be
checked regularly and should only be
adjusted on cold tires. Follow tire
manufacturer’s maintenance recom-
mendation included with vehicle.

418 Technical dataRims and tiresSpare wheel with collapsible tire
All models
Rim (light alloy)
4.5 B x 17 H2
Wheel offset
0.47 in (12 mm)
Collapsible tire
145/70-17 92P
1
1Must not be used with snow chains.iPlease note that the tire inflation
pessure of the collapsible tire differs
from the tire inflation pressure of the
road tires.
Inflate the collapsible tire to approxi-
mately 51 psi (3.5 bar).

431 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Accessory weight
(
page 323)
Air pressure
(page 323)
AIRSCARF neck-level heating
AIRSCARF neck-level heating provides
the surrounding area of the occupants’
necks with a heated air stream flowing
from openings in the head restraints.
Alignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.
Aspect ratio
(page 323)BabySmart
TM1
air bag deactivation
system
This system detects if a special
system-compatible child restraint seat
is installed on the passenger seat.
The system will automatically
deactivate the passenger front air bag
when such a seat is properly installed
(the 75indicator lamp
located in the center console comes
on).
BabySmart
TM
compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the pas-
senger front air bag if a BabySmart
TM
compatible child seat is installed. See
an authorized Mercedes-Benz Center
for availability.
Bar
(
page 323)BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.
Bead
(
page 323)
Bi-Xenon headlamps
Headlamps which use an electric arc as
the light source and produce a more in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.
CAC
(Customer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.
1BabySmart
TM
is a trademark of Siemens
Automotive Corp.

432 Technical termsCAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or
windshield wiping.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.
Cold tire inflation pressure
(
page 323)
Collapsible tire
An especially compact spare tire that
must be inflated with a provided air
pump before using. It should only be
used to bring the vehicle to the nearest
service station.COMAND
(Co
ckpit Man
agement and
D
ata System)
Information and operating center for
vehicle sound and communications
systems, including the radio,
CD changer and navigation system, as
well as other optional equipment (e.g.
telephone).
Control system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to ad-
just settings.
Cruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.Curb weight
(
page 323)
DOT
(Department o
f Transportation)
(
page 323)
Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced.
Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.
ESP
(Electronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.