flat tire MERCEDES-BENZ SLK320 2003 R170 Owner's Guide

241 Practical hints
Flat tire

Remove the wheel.

Take the spare tire out of the trunk.
Mounting the new wheel
Wheel bolts1 Wheel bolt for

wheel rim size 7Jx16 H2 and 8Jx16 H2


AMG wheel rim size 7
1⁄2Jx17 H2 and
8
1⁄2Jx17 H2


spare wheel rim size 4
1⁄2Bx16 H2
2 Wheel bolt for


spare wheel rim size 4
1⁄2Bx15 H2
(located with electric air pump)

Clean contact surfaces of wheel and
wheel hub.

Guide the spare wheel onto the align-
ment bolt and push it on.

Insert wheel bolts and tighten them
slightly.

Inflate the spare tire using the electric
air pump (
page 243).
!Wheel bolts2 must be used when
mounting spare wheel rim size
41⁄2Bx15 H2.
The use of any wheel bolts other than
wheel bolts2 for spare wheel rim size
4
1⁄2Bx15 H2 can cause physical dam-
age to the vehicle.
Warning!
G
Be sure to use original length wheel bolts
when remounting the original wheel after it
has been repaired.
Warning!
G
Inflate spare wheel with collapsible tire only
after the wheel is properly mounted.!To avoid paint damage, place wheel flat
against hub and hold it there while in-
stalling first wheel bolt.


242 Practical hintsFlat tire

Unscrew the alignment bolt, install last
wheel bolt and tighten slightly.
Lowering the vehicle

Lower vehicle by turning crank coun-
terclockwise until vehicle is resting ful-
ly on its own weight.

Pull the jack out of the jack support
tube.

Remove jack tube cover.1-5Wheel bolts

Tighten the five wheel bolts evenly, fol-
lowing the diagonal sequence illustrat-
ed (1to5), until all bolts are tight.
Observe a tightening torque of 80 ft lb
(110 Nm).
Warning!
G
Always replace wheel bolts that are dam-
aged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be re-
paired immediately. Do not continue to drive
under these circumstances! Contact an au-
thorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect mounting bolts or improperly
tightened mounting bolts can cause the
wheel to come off. This could cause an acci-
dent. Be sure to use the correct mounting
bolts.
Warning!
G
Use only genuine equipment
Mercedes-Benz wheel bolts. They are identi-
fied by the Mercedes star. Other wheel bolts
may come loose.
Do not tighten the wheel bolts when the ve-
hicle is raised. Otherwise the vehicle could
tip over.
Warning!
G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
80 ft lb (110 Nm).


243 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 207).
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. Airhose2 and union
nut3 can become hot duration infla-
tion.

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.


244 Practical hintsFlat tire

Detach the electric air pump.

Reinstall tire valve cap.

Stow the electrical plug and the air
hose behind the flap and place the air
pump back in the trunk.

Close the trunk lid.Storing collapsible spare wheel in
wheel well
Before you can store the spare wheel with
collapsible tire in the wheel well you have
to release the air pressure of the tire.

Unscrew valve stem removal tool,
which is part of the valve cap, from tire
valve.

Using the valve stem removal tool,
open tire valve slightly by turning the
tire valve insert counterclockwise to
release air pressure.

When the air pressure has been re-
leased, remove tire valve insert (pro-
tect it from dirt and sand) using the
previously removed tire valve cap.

Once all air is out of the tire, and the
tire has collapsed to its original shape,
reinstall the tire valve insert and valve
cap.

Place spare wheel in wheel well and
secure it with the pump holder.

Tu rn pu m p hold er cl ockwi se to its st op.
Warning!
G
Follow recommend inflation pressures.
Do not overinflate tires. Overinflating tires
can result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes
etc.
Do not underinflate tires. Underinflated tires
wear unevenly, adversely affect handling
and fuel economy, and are more likely to fail
from being overheated.
Do not overload the tires by exceeding the
specified vehicle capacity weight (as indicat-
ed by the label on the pillar in the driver’s
door opening). Overloading the tires can
overheat them, possibly causing a blowout.
Warning!
G
To prevent possible injury when unscrewing
air pump filler hose from tire valve after in-
flating the tire, use a rag since the tire valve
could be hot.

261 Technical data
Rims and Tires
Rims and Tires
Use only tires and rims which have been
specifically developed for your vehicle and
tested and approved by Mercedes-Benz.
Other tires and rims can have detrimental
effects, such as

poor handling characteristics


increased noise


increased fuel consumption
!Moreover, tires and rims not approved
by Mercedes-Benz may, under load, ex-
hibit dimensional variations and differ-
ent 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 tire inflation
pressure table is located on the fuel fill-
er cap of the vehicle. The tire pressure
should be checked regularly and
should only be adjusted on cold tires.
Follow tire manufacturer’s mainte-
nance recommendation included with
vehicle.

277 Technical data
Consumer information
Temperature
The temperature grades are A (the high-
est), B, and C, representing the tire’s resis-
tance to the generation of heat and its
ability to dissipate heat when tested under
controlled conditions on a specified indoor
laboratory test wheel. Sustained high tem-
perature can cause the material of the tire
to degenerate and reduce tire life, and ex-
cessive temperatures can lead to sudden
tire failure. Grade C corresponds to a level
of performance which all passenger car
tires must meet under the Federal Motor
Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel
than the minimum required by law.
Warning!
G
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underin-
flation, or excessive loading, either sepa-
rately or in combination, can cause
excessive heat build-up and possible tire
failure.

279 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.
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.
BabySmart
TM
airbag deactivation
system
This system detects if a special system
compatible child restraint seat is in-
stalled on the passenger seat. The sys-
tem will automatically deactivate the
passenger front airbag when such a
seat is properly installed (indicator
lamp
7
in the center console lights
up). See your authorized
Mercedes-Benz Center for availability.BabySmart
TM
compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the pas-
senger front airbag if a BabySmart
TM
compatible child seat is installed.
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.
CAC
(C
ustomer 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.CAN 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.
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.
Cruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.

285 Index
A
ABS 22, 66, 279
ABS control 67
Malfunction indicator lamp 196
Warning lamp 196
Accelerator position, automatic
transmission* 98
Accident
In case of 46
Activating
Air conditioning 107
Air recirculation mode 105
Anti-theft alarm system 71
Climate control 103
ESP 70
Exterior headlamps 43
Hazard warning flasher 85
Headlamps 43
High beams 85
Ignition 29
Immobilizer 71
Rear window defroster 105
Residual heat 107
Seat heater* 81
Tow-away alarm 72
Windshield wipers 44Activating automatic central locking 79
Adding
Coolant 176, 177
Engine oil 175
Additional turn signals 221
Adjusting 30
Air distribution 104
Air volume 104
Backrest tilt 32, 33
Exterior rear view mirror 35
Head restraint height 32
Inside rear view mirror 35
Instrument cluster illumination 88
Manual seat 31
Mirrors 35
Seat cushion tilt 33
Seat fore and aft adjustment 31, 33
Seat height 31, 33
Seats 30
Telescoping steering column* 34
Adjusting headlamp aim
Horizontal headlamp aim 227
Vertical headlamp aim 226
Air conditioning 106
Activating 107
Deactivating 106Air conditioning refrigerant 271
Air distribution
Adjusting 104
Air pressure see Tire inflation
pressure 181
Air recirculation mode 105
Activating 105
Deactivating 105
Air volume
Adjusting 104
AIRBAG OFF indicator lamp 205
Airbags 53
BabySmart airbag deactivation
system 279
BabySmart
TM deactivation
system 62
Children 54
Front 56
Passenger 56
Safety guidelines 55
Side impact 57
Alarm
Audible 65, 71
Canceling 71
Visual 71

287 Index
Battery discharged
Jump starting 247
Battery, vehicle 178, 245
Charging 246
Disconnecting 246
Reconnecting 246
Reinstalling 246
Removing 246
Block heater 184
Bolts
For spare wheel 207
Brake assist system (BAS) 279
Brake fluid 170, 271
Brake lamp bulbs 222
Brake lamp, high mounted 222
Brakes 160
Warning lamp 198
Break-in period 158
Bulbs, replacing 221
Additional turn signals 221
Backup lamps 222
Brake lamps 222
Fog lamps 221
Front lamps 221
High beam 221
High mounted brake lamp 222License plate lamps 222, 226
Low beam 221
Parking lamps 221, 222, 224
Rear fog lamp 222
Rear fog lamps 225
Side marker lamps 221, 225
Standing lamps 221, 222, 224
Tail lamp assemblies 222, 225
Turn signal lamps 221, 222
Xenon* headlamps 223
Button
Audio system 115
C
CAC (Customer Assistance Center) 279
California
Important notice 9
Calling up
Service indicator 186
CAN system 279
Capacities
Fuels, coolants, lubricants, etc. 269
Cargo area see Cargo compartment 77
Cargo compartment
Trunk 77
Casette mode
Playing cassettes 118Catalytic converter 166
CD changer* 120, 209
CD mode 120
Center console 23
AIRBAG OFF indicator lamp 205
Lower part 24
Storage compartment 140
Upper part 23
Central locking
From inside 80
Unlocking from inside 80
Certification label 258
Changing CDs 120
Charging
Vehicle battery 246
CHECK ENGINE malfunction indicator
lamp 199
Checking
Coolant level 170, 176
Oil level 170, 172
Tire inflation pressure 170
Vehicle lighting 170
Checking engine oil level
Via engine oil level indicator 173
Via oil dipstick 173

290 IndexEmergency calls
Initiating an emergency call 147
With Tele Aid 146
Emergency operation (Limp Home
Mode) 98
Emergency operations
Closing hardtop 215
Opening hardtop 215
Remote door unlock 151
Unlocking the vehicle 210
Emergency release for trunk lid 78
Emergency tensioning device see
ETD 60, 280
Emission control 167
Emission control label 258
Engine
Compartment 171
Starting with automatic
transmission* 41
Starting with manual
transmission 40
Starting with the key 40, 41
Technical data 260
Turning off with the key 48
Engine cleaning 189
Engine compartment 171Hood 171
Engine malfunction indicator lamp 21,
199
Engine number 280
Engine oil 172, 271
Adding 175
Additives 271
Checking level 172
Consumption 172
Filler neck 175
Viscosity 280
Engine oil level see Oil level 170
ESP 22, 68, 280
Switching off 70
Switching on 70
Warning lamp 194
ETD 280
Safety guidelines 55
ETD (Emergency tensioning device) 60
Exterior lamp switch 83
Exterior rear view mirrors
Adjusting 35
F
Fastening the seat belts 37
Fine adjustment
Cruise control 138First aid kit 206
Flat tire 229
Lowering the vehicle 242
Mounting the spare wheel 238
Preparing the vehicle 229
Spare wheel 207
TIREFIT 208, 209
Flexible Service System (FSS) 185, 280
Fog lamp, rear 84, 222
Fog lamps
Replacing bulbs 221
Fog lamps, front
Replacing bulbs 222
Switching on 84
Front airbags 56
Front lamps
Replacing bulbs 221, 223
Switching on 83
Front seats
Heater* 81
FSS (Flexible Service System) 185, 280