winter tires MERCEDES-BENZ SLK320 2004 R171 Owner's Manual

Contents
Tele Aid ........................................ 144
Garage door opener ..................... 153
Operation......................................... 159
The first 1000 miles (1500 km) ......... 160
Driving instructions............................ 161
Drive sensibly – save fuel............. 161
Drinking and driving ..................... 161
Pedals .......................................... 161
Power assistance ......................... 162
Brakes .......................................... 162
Driving off .................................... 163
Parking......................................... 163
Tires ............................................. 164
Hydroplaning................................ 165
Tire traction ................................. 165
Tire speed rating .......................... 166
Winter driving instructions ........... 167
Standing water ............................. 168
Passenger compartment .............. 168
Driving abroad.............................. 168
Control and operation of radio
transmitter ................................... 168
Catalytic converter....................... 169
Emission control .......................... 170Coolant temperature..................... 170
At the gas station ............................... 171
Refueling....................................... 171
Check regularly and before a
long trip ........................................ 172
Engine compartment .......................... 174
Hood ............................................. 174
Engine oil ...................................... 175
Transmission fluid level................. 180
Coolant ......................................... 180
Battery .......................................... 183
Windshield washer system and
headlamp cleaning system*.......... 184
Tires and wheels................................. 185
Important guidelines ..................... 185
Life of tire ..................................... 186
Direction of rotation...................... 186
Checking tire inflation pressure .... 186
Rotating wheels ............................ 187
Winter driving ..................................... 188
Winter tires ................................... 188
Block heater (Canada only) ........... 189
Snow chains.................................. 189
Maintenance....................................... 190
Clearing the service indicator ....... 190
Service term exceeded ................. 191Calling up the service indicator .... 191
Resetting the service indicator ..... 191
Vehicle care ....................................... 192
Cleaning and care of vehicle ......... 192
Practical hints.................................. 199
What to do if … ................................... 200
Lamps in instrument cluster ......... 200
Additional indicators in the
speedometer display .................... 210
Lamp in center console ................ 211
Where will I find ...? ............................ 212
First aid kit.................................... 212
Vehicle tool kit, vehicle jack ......... 212
Spare wheel (SLK 230
Kompressor, SLK 320) .................. 213
TIREFIT kit (SLK 32 AMG only) ...... 214
Unlocking/locking in an emergency .. 216
Unlocking the vehicle ................... 216
Locking the vehicle ....................... 217
Changing batteries in remote
control .......................................... 218
Synchronizing remote control ....... 219
Fuel filler flap ................................ 219

66 Safety and SecurityDriving safety systems
Driving safety systemsIn this section you will find information on
the following driving safety systems:

ABS (A
ntilock B
rake S
ystem)


BAS (B
rake A
ssist S
ystem)


ESP (E
lectronic S
tability P
rogram)
ABS
The Antilock Brake System (ABS) regulates
the brake pressure so that the wheels do
not lock during braking. This allows you to
maintain the ability to steer your vehicle.
The ABS is functional above a speed of ap-
proximately 5 mph (8 km/h) independent
of road surface conditions.
On slippery road surfaces, the ABS will re-
spond even with light brake pressure.
The - malfunction indicator lamp in the
instrument cluster (
page 20) lights up
when you turn the key in the steering lock
to position2. It goes out when the engine
is running.
iIn winter operation, the maximum ef-
fectiveness of the ABS and ESP is only
achieved with winter tires (M + S tires),
or snow chains as required.
Warning!
G
The following factors increase the risk of ac-
cidents:

Excessive speed, especially in turns


Wet and slippery road surfaces


Following another vehicle too closely
The ABS, BAS and ESP cannot reduce this
risk.
Always adjust your driving style to the pre-
vailing road and weather conditions.
Warning!
G
Do not pump the brake pedal. Use firm,
steady brake pedal pressure instead. Pump-
ing the brake pedal defeats the purpose of
the ABS and significantly reduces braking
effectiveness.

159 Operation
The first 1000 miles (1500 km)
Driving instructions
At the gas station
Engine compartment
Tires and wheels
Winter driving
Maintenance
Vehicle care

165 Operation
Driving instructions
Hydroplaning
Depending on the depth of the water layer
on the road, hydroplaning may occur, even
at low speeds and with new tires. Reduce
vehicle speed, avoid track grooves in the
road and apply brakes cautiously in the
rain.
Tire traction
The safe speed on a wet, snow covered or
icy road is always lower than on a dry road.
You should pay particular attention to the
condition of the road whenever the outside
temperatures are close to the freezing
point.Mercedes-Benz recommends M+S rated
radial-ply tires with a minimum tread depth
of approximately
1/6in (4 mm) on all four
wheels for the winter season to ensure
normal balanced handling characteristics.
On packed snow, they can reduce your
stopping distance as compared with sum-
mer tires. Stopping distance, however, is
still considerably greater than when the
road is not covered with snow or ice. Exer-
cise appropriate caution.
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. Continued
driving with a flat tire or driving at high
speed with a flat tire will cause excessive
heat build-up and possibly a fire.
Warning!
G
If ice has formed on the road, tire traction
will be substantially reduced. Under such
weather conditions, drive, steer and brake
with extreme caution.
!Avoid spinning of a drive wheel. This
may cause serious damage to the driv-
etrain which is not covered by the
Mercedes-Benz Limited Warranty.

166 OperationDriving instructionsTire speed rating
Regardless of the tire speed rating, local
speed limits should be obeyed. Use pru-
dent driving speeds appropriate to prevail-
ing conditions.SLK 230 Kompressor (except Sport
Package)
Your vehicle is factory equipped with
“V”-rated tires, which have a speed rating
of 149 mph (240 km / h).
An electronic speed limiter prevents your
vehicle from exceeding a speed of
130 mph (210 km/h).
SLK 320 (except Sport Package)
Your vehicle is factory equipped with
“W”-rated tires, which have a speed rating
of 168 mph (270 km / h).
An electronic speed limiter prevents your
vehicle from exceeding a speed of
130 mph (210 km/h).SLK 230 Kompressor/SLK 320 with
Sport Package*
Your vehicle is factory equipped with
“Y”-rated tires, which have a speed rating
of 186 mph (300 km / h).
An electronic speed limiter prevents your
vehicle from exceeding a speed of
130 mph (210 km/h).
SLK 32 AMG
Your vehicle is factory equipped with
“Y”-rated tires, which have a speed rating
of 186 mph (300 km / h).
An electronic speed limiter prevents your
vehicle from exceeding a speed of
155 mph (250 km/h).Warning!
G
Even when permitted by law, never operate
a vehicle at greater than the maximum
speed rating of the tires.
Exceeding the maximum speed for which
tires are rated can lead to sudden tire failure
causing loss of vehicle control and resulting
in an accident and/or personal injury and
possible death, for you and for others.
iFor information on tire speed rating for
winter tires, see “Winter driving”
(page 188).

185 Operation
Tires and wheels
Tires and wheels
See your authorized Mercedes-Benz Cen-
ter for information on tested and recom-
mended rims and tires for summer and
winter operation. They can also offer ad-
vice concerning tire service and purchase.
Retreaded tires are not tested or recom-
mended by Mercedes-Benz, since previous
damage cannot always be recognized on
retreads. Mercedes-Benz can therefore
not assure the operating safety of the vehi-
cle when such tires are used.
See your authorized Mercedes-Benz Cen-
ter for information on tested and recom-
mended rims and tires for summer and
winter operation.
Important guidelines

Use only sets of tires and rims of the
same type and make.


Tires must be of the correct size for the
rim.


Break in new tires for approximately
60 miles (100 km) at moderate
speeds.


Regularly check the tires and rims for
damage. Dented or bent rims can
cause tire pressure loss and damage to
the tire beads.


If vehicle is heavily loaded, check tire
pressure and correct as required.


Do not allow your tires to wear down
too far. Adhesion properties on wet
roads are sharply reduced at tread
depths under
1/8in (3 mm).


When replacing individual tires, you
should mount new tires on the front
wheels first (on vehicles with
same-sized wheels all around).
Warning!
G
Replace rims or tires with the same designa-
tion, manufacturer and type as shown on the
original part. See your authorized
Mercedes-Benz Center for further informa-
tion. If incorrectly sized rims and tires are
mounted:

The wheel brakes or suspension compo-
nents can be damaged.


The correct operating clearance of the
wheels and the tires are no longer guar-
anteed.
Warning!
G
Worn, old tires can cause accidents. If the
tire tread is badly worn, or if the tires have
sustained damage, replace them.
When replacing rims, use only genuine
Mercedes-Benz wheel bolts specified for the
particular rim type. Failure to do so can re-
sult in the bolts loosening and possibly an
accident.

188 OperationWinter driving
Winter drivingBefore the onset of winter, have your
vehicle winterized at an authorized
Mercedes-Benz Center. This service
includes:

Check of anticorrosion and antifreeze
concentration.


Addition of cleaning concentrate to the
water of the windshield and headlamp*
cleaning system. Add MB Concentrate
“S” to a premixed windshield washer
solvent / antifreeze which is formulated
for temperatures below freezing point
(page 277).


Battery test. Battery capacity drops
with decreasing ambient temperature.
A well charged battery helps to ensure
the engine can be started, even at low
ambient temperatures.


Tire change. Mercedes-Benz recom-
mends M+S rated radial-ply tires with a
minimum tread depth of approximately 1/6 in (4 mm) on all four wheels for the
winter season.
Winter tires
Always use winter tires at temperatures
below 45°F (7°C) and whenever wintry
road conditions prevail. Use of winter tires
is the only way to achieve the maximum ef-
fectiveness of the ABS and ESP in winter
operation.
For safe handling, make sure all mounted
winter tires are of the same make and have
the same tread design.Always observe the speed rating of the
winter tires installed on your vehicle. If the
maximum speed for which your tires are
rated is below the speed rating of your ve-
hicle, you must place a notice to this effect
where it will be seen by the driver. Such no-
tices are available at your tire dealer or any
authorized Mercedes-Benz Center.Warning!
G
Winter tires with a tread depth under
1/6 in
(4 mm) must be replaced. They are no long-
er suitable for winter operation.
Warning!
G
If you use your spare tire when winter tires
are fitted on the other wheels, be aware that
the difference in tire characteristics may
very well impair turning stability and that
overall driving stability may be reduced.
Adapt your driving style accordingly.
Have the spare tire replaced with a winter
tire at the nearest authorized
Mercedes-Benz Center.

270 Technical dataRims and TiresSame size tires
16’’ tires
17’’ tires
SLK 230 Kompressor
SLK 320
SLK 32 AMG
Rims (light alloy)
7 J x16 H2
7 J x16 H2
-
Wheel offset
1.46 in (37 mm)
1.46 in (37 mm)
-
Winter tires (radial-ply tires)
205/55 R16 91H M+S
205/55 R16 91H M+S
-
SLK 230 Kompressor
SLK 320
SLK 32 AMG
Rims (light alloy)
-
-
71⁄2 J x17 H2
Wheel offset
-
-
1.46 in (37 mm)
Winter tires (radial-ply tires)
-
-
205/50 R17 89H M+S
or
225/45 R17 91H M+S
1
1Must not be used with snow chains.

309 Index
Temperature grades 285
Tread depth 188
Wear pattern 187
Winter 188
Tools 212
Tow-away alarm 23, 72
Arming 72
Disarming 72
Disarming for transport 72
Towing eye bolt (vehicle tool kit)
Installing 259
Towing the vehicle 256, 258, 259
Tracking services
For stolen vehicle 152
Traction 97, 284, 291
Transmission see Automatic
transmission* 180
Transmission selector lever 220
Unlocking manually 220
Traveling abroad 168
Tread depth (tires) 188
Treadwear 284
Trip odometer
Resetting 90Trunk
Closing the lid 78
Lighting 88
Opening 77
Trunk lid emergency release 78
Trunk lid
Closing 78
Turn signal lamps
Replacing bulbs 226, 227
Turn signals 43
Additional in mirrors 226
Cleaning lenses 194
Front bulbs 226, 229
Indicator lamps 21
Rear bulbs 227, 230
Turning off
Engine 48U
Unlocking 28, 74
Centrally from inside 80
Driver’s door in an emergency 216
Fuel filler flap 171
Global 75
In an emergency 216
Selective settings 75
Transmission selector lever
manually 220
Trunk in an emergency 216
Vehicle in an emergency 151
With the remote control 28
Upgrade signals
Tele Aid 150
Uphill driving
Cruise control 137
Upshifting 94
Useful features 139
Ashtray 142
Cigarette lighter 143
Interior storage spaces 139
Tele Aid 144
Telephone* 143

311 Index
Windows see Side windows
Windshield
Defogging 110
Refilling washer fluid 184
Replacing wiper blades 233
Washer fluid 184, 283
Washer system 283
Windshield washer fluid 283
Filler neck 184
Mixing ratio 283
Refilling 184
Wiping with 45
Windshield washer system 283
Windshield wipers 44
Fast wiper speed 44
Replacing wiper blades 233
Single wipe 45
Switching on 44
Wiping with windshield washer
fluid 45Winter driving 188
Block heater 189
Snow chains 189
Tires 188
Transmission program mode 97
Winter driving instructions 167
Winter tires 188
Wiper blades
Cleaning 195
Installing 234
Removing 233
Removing insert 233
Replacing 233Wiping
And washing simultaneously 45
Interval 44
With windshield washer fluid 45
X
Xenon headlamps* 291