2008 MERCEDES-BENZ SL55AMG winter tires

Contents
Power windows .................................. 201
Opening and closing the
windows ....................................... 201
Synchronizing power windows ..... 203
Retractable hardtop ........................... 204
Opening and closing the
retractable hardtop ...................... 204
Driving systems ................................. 214
Cruise control............................... 214
Distronic*..................................... 218
Distance warning function*.......... 229
Active Body Control (ABC) ............ 230
Parktronic system*
(Parking assist)............................. 233
Useful features .................................. 238
Storage compartments................. 238
Cup holders .................................. 243
Ashtray ......................................... 244
Cigarette lighter ........................... 244
Load assist in the trunk ................ 245
Power outlet ................................. 246
Floormat* ..................................... 247
Telephone*................................... 247
Tele Aid ........................................ 250
Garage door opener ..................... 257
Operation......................................... 265
The first 1 000 miles (1 500 km)......... 266
Driving instructions............................ 267
Drive sensibly – save fuel ............. 267
Drinking and driving ..................... 267
Pedals .......................................... 267
Power assistance ......................... 268
Brakes .......................................... 268
Driving off .................................... 270
Parking ......................................... 271
Tires ............................................. 271
Hydroplaning ................................ 272
Tire traction.................................. 273
Tire speed rating .......................... 273
Winter driving instructions ........... 274
Standing water ............................. 275
Passenger compartment .............. 276
Driving abroad.............................. 276
Control and operation of
radio transmitters ........................ 276
Catalytic converter ....................... 277
Emission control .......................... 277
Coolant temperature .................... 278At the gas station .............................. 279
Refueling ...................................... 279
Check regularly and before
a long trip..................................... 280
Engine compartment ......................... 282
Hood ............................................ 282
Engine oil ..................................... 283
Transmission fluid level................ 287
Oil level in the ABC system .......... 287
Coolant ........................................ 288
Windshield washer system and
headlamp cleaning system........... 289
Battery ......................................... 290
Tires and wheels................................ 291
Important guidelines .................... 291
Tire care and maintenance........... 292
Direction of rotation..................... 294
Loading the vehicle ...................... 294
Recommended tire inflation
pressure ....................................... 300
Checking tire inflation pressure ... 302
MOExtended system* .................. 312
Tire labeling ................................. 313
Load identification ....................... 317
DOT, Tire Identification Number
(TIN) ............................................. 317

Contents
Maximum tire load ....................... 319
Maximum tire inflation pressure .. 319
Uniform Tire Quality Grading
Standards (U.S. vehicles) ............. 320
Tire ply material ........................... 322
Tire and loading terminology ........ 322
Rotating tires ............................... 325
Winter driving .................................... 327
Winter tires .................................. 327
Block heater (Canada only) .......... 328
Snow chains................................. 329
Maintenance ...................................... 330
Maintenance service indicator
message....................................... 330
Calling up the maintenance
service indicator display............... 332
Resetting the maintenance
service indicator........................... 332
Vehicle care ....................................... 333
Cleaning and care of the vehicle .. 333
Practical hints.................................. 341
What to do if … ................................... 342
Lamps in the instrument cluster ... 342
Air bag off indicator lamp.............. 357
Vehicle status messages in the
multifunction display..................... 359
Where will I find ...? ............................ 400
First aid kit .................................... 400
Vehicle tool kit, jack, and
spare wheel .................................. 400
Locking/unlocking in an emergency .. 403
Unlocking the vehicle.................... 403
Locking the vehicle ....................... 405
Lowering the load assist
manually ....................................... 406
Replacing SmartKey batteries ............ 407
Replacing bulbs .................................. 409
Bulbs ............................................. 409
Replacing bulbs for front lamps .... 411
Replacing bulbs for rear lamps ..... 414
Replacing wiper blades....................... 415
Placing wiper arms in vertical
position ......................................... 415
Removing wiper blades ................. 416
Installing wiper blades .................. 416Flat tire............................................... 417
Preparing the vehicle .................... 417
Mounting the spare wheel ............ 417
MOExtended system* ................... 425
Batteries............................................. 427
Disconnecting the batteries.......... 429
Removing the batteries................. 430
Charging and reinstalling
batteries ....................................... 430
Reconnecting the batteries........... 431
Jump starting...................................... 432
Towing the vehicle.............................. 434
Installing towing eye bolt .............. 436
Fuses.................................................. 437
Fuse boxes in engine
compartment ................................ 438
Fuse box in passenger
compartment ................................ 439
Fuse in trunk................................. 439
Emergency engine shut-down ....... 439

89 Safety and Security
Driving safety systems
Driving safety systems
In this section you will find information on
the following driving safety systems:

ABS (Antilock Brake System)

BAS (Brake Assist System)

ESP® (Electronic Stability Program)

Electro-hydraulic brake system
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
approximately 5 mph (8 km/h) indepen-
dent of road surface conditions.
On slippery road surfaces, the ABS will re-
spond even to light brake pressure.
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 driving systems described in this sec-
tion cannot reduce these risks or prevent
the natural laws of physics from acting on
the vehicle.
Always adjust your driving style to the
prevailing road and weather conditions and
keep a safe distance to other road users and
objects on the street.
iIn winter operation, the maximum effective-
ness of the ABS, the BAS, the ESP®, and the
electro-hydraulic brake system is only achieved
with winter tires (
page 327) or snow chains as
required.
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.

265 Operation
The first 1 000 miles (1 500 km)
Driving instructions
At the gas station
Engine compartment
Tires and wheels
Winter driving
Maintenance
Vehicle care

273 Operation
Driving instructions
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 winter tires
(
page 327) 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.
Tire speed rating
Regardless of the tire speed rating, local
speed limits should be obeyed. Use pru-
dent driving speeds appropriate to prevail-
ing conditions.
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 drivetrain which is
not covered by the Mercedes-Benz Limited
Warranty.
Warning!G
Even when permitted by law, never operate
a vehicle at speeds greater than the maxi-
mum speed rating of the tires.
Exceeding the maximum speed for which
tires are rated can lead to sudden tire fail-
ure, causing loss of vehicle control and pos-
sibly resulting in an accident and/or
personal injury and possible death, for you
and for others.

274 Operation
Driving instructions
An electronic speed limiter prevents your
vehicle from exceeding a speed of:

SL 550
SL 550 (Sport Package*)
SL 600
SL 600 (Sport Package*)
SL 55 AMG
SL 65 AMG:
155 mph (250 km/h)

SL 55 AMG (Performance Package*)
SL 65 AMG with increased top speed*:
186 mph (300 km/h)
The factory equipped tires on your vehicle
may have a tire speed rating above the
maximum speed permitted by the
electronic speed limiter.
Make sure your tires have the required tire
speed rating as specified for your vehicle in
the “Technical data” section (
page 449),
for example when purchasing new tires.For information on how to identify the tire
speed rating on a tire’s sidewall, see “Tire
size designation, load and speed rating”
(
page 313).
If you are uncertain about the correct
reading of the information given on a tire’s
sidewall, any authorized Mercedes-Benz
Center will be glad to assist you.
Winter driving instructions
The most important rule for slippery or icy
roads is to drive sensibly and to avoid
abrupt acceleration, braking and steering
maneuvers. Do not use the cruise control
system under such conditions.
When the vehicle is in danger of skidding,
move gear selector lever to positionN. Try
to keep the vehicle under control by cor-
rective steering action.
iFor information on tire speed rating for
winter tires, see “All-season and winter tires”
(
page 316).
For additional general information markings on
tire sidewall, see “Tire size designation, load and
speed rating” (
page 313).
iFor information on driving with snow chains,
see “Snow chains” (
page 329).
Warning!G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced
vehicle control. Your vehicle’s ABS will not
prevent this type of control loss.

291 Operation
Tires and wheels
Tires and wheels
See an authorized Mercedes-Benz Center
for information on tested and
recommended rims and tires for summer
and winter operation. They can also offer
advice concerning tire service and
purchase.Important guidelines

Only use 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 inflation pressure loss and
damage to the tire beads.

If vehicle is heavily loaded, check tire
inflation 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 of less than
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 an authorized
Mercedes-Benz Center for further informa-
tion. If incorrectly sized rims and tires are
mounted:

The wheel brakes or suspension
components can be damaged.

The operating clearance of the wheels
and the tires may no longer be correct.
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, only use genuine
Mercedes-Benz wheel bolts specified for the
particular rim type. Failure to do so can
result in the bolts loosening and possibly an
accident.
Retreaded tires are not tested or recom-
mended by Mercedes-Benz, since previous
damage cannot always be recognized on re-
treads. The operating safety of the vehicle
cannot be assured when such tires are used.

293 Operation
Tires and wheels
Tread depth
Do not allow your tires to wear down too
far. Adhesion properties on wet roads are
sharply reduced at tread depths of less
than
1/8in (3 mm).
Treadwear indicators (TWI) are required by
law. These indicators are located in six
places on the tread circumference and
become visible at a tread depth of approx-
imately
1/16in (1.6 mm), at which point the
tire is considered worn and should be re-
placed.
Recommended minimum tire tread depth:

Summer tires 1/8in (3 mm)

Winter tires 1/6in (4 mm)
1TWI (T
read Wear Indicator)
The treadwear indicator appears as a solid
band across the tread.Storing tires
Cleaning tiresWarning!G
Although the applicable federal motor safety
laws consider a tire to be worn when the
treadwear indicators (TWI) become visible at
approximately
1/16in (1.6 mm), we recom-
mend that you do not allow your tires
to wear down to that level. As tread depth
approaches 1/8in (3 mm), the adhesion
properties on a wet road are sharply re-
duced.
Depending upon the weather and/or road
surface (conditions), the tire traction varies
widely.!Keep unmounted tires in a cool, dry place
with as little exposure to light as possible. Pro-
tect tires from contact with oil, grease and gaso-
line.
!Never use a round nozzle to power wash
tires. The intense jet of water can result in
damage to the tire.
Always replace a damaged tire.