traction control MERCEDES-BENZ SL-Class 2001 R129 Owner's Manual

3 ContentsCup holder ...................................... 128
Parcel net in
passenger footwell .................... 128
Door pockets ................................... 129
Rear storage compartment ........... 129
Ashtray with lighter ...................... 130
Lighter ............................................. 131
Telephone, general ........................ 132
Garage door opener ....................... 133
Hardtop or panorama roof ............ 137
Removing hardtop ...................... 137
Attaching hardtop ...................... 140
Soft top ............................................ 143
Lowering soft top ........................ 144
Raising soft top ........................... 145
Wind screen .................................... 148
Antenna ........................................... 151
Driving Control and operation of radio
transmitters ............................... 154
Radio and telephone .................. 154
Telep ho n es an d
two-way radio .............................. 154The first 1 000 miles
(1 500 km) ..................................155
Maintenance ...................................155
Tele Aid ............................................156
Catalytic converter .........................163
Emission control .............................164
Steering lock ...................................165
Starting and turning off
the engine ...................................167
Before starting .............................167
Starting .........................................167
Turning off ...................................167
Automatic transmission ................168
Driving .........................................168
Accelerator Position ...................169
Selector lever positions .............169
Maneuvering .............................. 172
Stopping ...................................... 172
Program mode
selector switch ........................... 173
Emergency Operation ................174
Parking brake ................................ 175
Driving instructions ....................... 176
Drive sensibly - Save fuel .......... 176Drinking and driving ................. 176
Pedals ........................................... 176
Power assistance ........................ 177
Brakes .......................................... 177
Driving off ................................... 178
Parking ........................................ 178
Tires ............................................. 179
Aquaplaning ............................... 180
Tire traction ................................ 180
Tire speed rating ........................ 181
Snow chains ................................ 181
Vehicles with
sport package .............................. 181
Deep water .................................. 182
Winter driving
instructions ................................. 182
Winter driving ............................ 183
Block heater ................................ 183
Traveling abroad ........................ 183
Cruise control ................................. 184
Brake assist system
(BAS) ........................................... 188
Antilock brake system
(ABS) ........................................... 190

68 Restraint systems
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When you sell the vehicle we strongly urge you to give
notice to the subsequent owner that it is equipped with
an “SRS” by alerting him to the applicable section in the
Operator’s Manual.Infant and child restraint systems
Use only a BabySmart
TM compatible child restraint in
this vehicle.
We recommend that all infants and children be properly
restrained at all times while the vehicle is in motion.
The passenger lap-shoulder belt has a special seat belt
retractor for secure fastening of a child restraint.
To fasten a child restraint follow child restraint
instructions for routing. Then pull shoulder belt out
completely. Slide switch located on side of passenger
seat to position N. Let the belt retract. During the
seat belt retraction a ratcheting sound can be heard to
indicate that the special seat belt retractor is activated.
The belt is now locked. Push down on child restraint to
take up any slack.
To deactivate, release seat belt buckle and let seat belt
retract completely. The seat belt can again be used in
the usual manner.
• For your protection and the protection of
others, when scrapping the airbag unit or
emergency tensioning retractor, our safety
instructions must be followed. These
instructions are available at your authorized
Mercedes-Benz Center.• Given the considerable deployment speed and
the textile structure of the airbags, there is the
possibility abrasions or other injuries
resulting from airbag deployment.
Wa r n i n g !
Never release the seat belt buckle while vehicle is
in motion, since the special seat belt retractor will
be deactivated.

98 Audio system
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Audio and telephone, operation
These instructions are intended to help you become
acquainted with your Mercedes-Benz vehicle radio.
They contain useful tips and a detailed description of
the user functions.
The right to correct errors and make technical amendments is
reserved.
Operating safety1 Optional equipment
Dolby and the double-D symbol
Ù
are trademarks of Dolby
Laboratories Licensing Corporation. The Dolby noise reduction
system is manufactured under licence from Dolby Laboratories
Licensing Corporation.
Wa r n i n g !
In order to avoid distraction which could lead to an
accident, system settings should be entered with
the vehicle at standstill and systems should be
operated by the driver only when traffic conditions
permit. Always pay full attention to traffic
conditions first before operating system controls
while driving. Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is covering
a distance of approximately 50 feet (approximately
14 m ) e v e r y s e c o n d .
Wa r n i n g !
Any alternations made to electronic components
can cause malfunctionsThe radio, cassette deck, CD changer
1 and
telephone
1 are interconnected. Therefore, when
one of the components is defective or has not been
removed/replaced properly this may impair the
function of other components.
These malfunctions might seriously impair the
operating safety of your vehicle.We recommend that you have any service work or
alternations on electronic components done in an
authorized Mercedes-Benz Center.

153 Contents - Driving
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Driving Control and operation of radio
transmitters ............................... 154
Radio and telephone .................. 154
Telep ho n es an d
two-way radio .............................. 154
The first 1 000 miles
(1 500 km) ................................. 155
Maintenance ................................... 155
Tele Aid ........................................... 156
Catalytic converter ........................ 163
Emission control ............................ 164
Steering lock ................................... 165
Starting and turning off
the engine .................................. 167
Before starting ............................ 167
Starting ........................................ 167
Turning off .................................. 167
Automatic transmission ............... 168
Driving ......................................... 168
Accelerator Position ................... 169
Selector lever positions ............. 169
Maneuvering ............................... 172Stopping ...................................... 172
Program mode
selector switch ........................... 173
Emergency Operation ................174
Parking brake ................................ 175
Driving instructions ....................... 176
Drive sensibly - Save fuel .......... 176
Drinking and driving ................. 176
Pedals ........................................... 176
Power assistance ........................ 177
Brakes .......................................... 177
Driving off ................................... 178
Parking ........................................ 178
Tires ............................................. 179
Aquaplaning ................................180
Tire traction .................................180
Tire speed rating ........................181
Snow chains ................................ 181
Vehicles with sport package .....181
Deep water ...................................182
Winter driving
instructions .................................182
Winter driving .............................183
Block heater .................................183Traveling abroad ........................ 183
Cruise control ................................. 184
Brake assist system (BAS) ............ 188
Antilock brake system (ABS) ....... 190
ABS control ................................. 191
Electronic Stability Program
(ESP) ........................................... 192
Synchronizing ESP .................... 193
ESP Control Switch .................... 194
Level control system ...................... 196
Level control
switch positions ......................... 196
Normal Level ............................... 197
Wheel Change Switch ............... 198
Ad aptive Da mping System
(ADS) ........................................... 199
Adaptive damping system
adjustment .................................. 199
What you should know
at the gas station .......................200
Fuel supply ..................................200
Fuel ...............................................200
Check regularly and
before a long trip ......................202

174 Automatic transmission
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WWinter/Wet (snow and ice) mode
Press switch on symbol "W". The vehicle starts
out in 2nd gear, except with selector lever in 1st
gear, or with accelerator pedal in kick-down
position.
The "W" mode helps to improve traction and
driving stability of the vehicle.
The gear shifting process occurs at lower vehicle
and engine speeds than in the "S" program mode.
Important!
Dependent on the program mode selector switch
position “S” or “W” and the gear selector lever in
position “R”, the ratio of power transmission changes.Emergency operation
(Limp Home Mode)
If vehicle acceleration worsens, or the transmission no
longer shifts, the transmission is most likely operating
in Limp Home Mode which engages when there is a
malfunction of the transmission. This condition may be
accompanied by the “CHECK ENGINE” malfunction
indicator lamp in the instrument cluster coming on.
In this mode only the 2nd gear or reverse gear can be
activated.
To engage 2nd gear or reverse:
1. Sto p t h e v e h i c l e .
2. Move selector lever to position “P”.
3. Turn off the engine.
4. Wait approx. 10 seconds.
5. Restart the engine.
6. Move selector lever to position “D” (for 2nd gear), or
move selector lever to position “R” (for reverse gear).
Have the transmission checked at your authorized
Mercedes-Benz Center as soon as possible.

179 Driving instructions
Te ch n ica l
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cluster displayPractical hints Car care Index Tires
Tread wear 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
approximately
1/16 in (1.5 mm), at which point the tire is
considered worn and should be replaced.
The tread wear indicator appears as a solid band across
the tread.
Wa r n i n g !
If you feel a sudden significant vibration or ride
disturbance, or you suspect that possible damage to
your vehicle has occurred, you should turn on the
hazard warning f lashers, carefully slow down, and
drive with caution to an area which is a safe
distance from the roadway.Inspect the tires and under the vehicle for possible
damage. If the vehicle or tires appear unsafe, have
it towed to the nearest Mercedes-Benz Center or
tire dealer for repairs.
Wa r n i n g !
Do not allow your tires to wear down too far. As
tread depth approaches
1/16 in (1.5 mm), the
adhesion properties on a wet road are sharply
reduced.
Depending upon the weather and/or road surface
(conditions), the tire traction varies widely.

180 Driving instructions
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Specified tire pressures must be maintained. This
applies particularly if the tires are subjected to high
loads (e.g. high speeds, heavy loads, high ambient
temperatures).
Aquaplaning
Depending on the depth of the water layer on the road,
aquaplaning 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.
We recommend M+S rated radial-ply tires for the winter
season for all four wheels to insure normal balanced
handling characteristics. On packed snow, they can
reduce your stopping distance as compared with
summer tires. Stopping distance, however, is still
considerably greater than when the road is not snow or
ice covered.
Wa r n i n 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.
Wa r n i n 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.

188 Driving systems
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Brake assist system (BAS)The BAS is designed to maximize the vehicle’s braking
capability during emergency braking maneuvers by
having maximum power boost applied to the brakes
more quickly in emergency braking conditions than
might otherwise be afforded solely by the driver’s
braking style. This can help reduce braking distances
over what ordinary driving and braking style might do.
The BAS complements the antilock brake system (ABS).
Applying the brakes very quickly results in maximum
BA S a ssistance.
To receive the benefit of the system you must apply
continuous full braking power during the stopping
sequence. Do not reduce brake pedal pressure.
Wa r n i n g !
BAS cannot prevent the natural laws of physics
from acting on the vehicle, nor can it increase
braking efficiency beyond that afforded by the
condition of the vehicle brakes and tires or the
traction afforded. The BAS cannot prevent
accidents, including those resulting from excessive
speed in turns, following another vehicle too
closely, or aquaplaning. Only a safe, attentive, and
skillful driver can prevent accidents. The
capabilities of a BAS equipped car must never be
exploited in a reckless or dangerous manner which
could jeopardize the user’s safety or the safety of
others.

191 Driving systems
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data Instruments
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cluster displayPractical hints Car care Index ABS control
The ABS malfunction indicator lamp- in the
instrument cluster comes on with the key in steering
lock position 2 and should go out with the engine
running.
When the ABS malfunction indicator lamp symbol and
warning in the instrument cluster comes on while the
engine is running, it indicates that the ABS has detected
a malfunction and has switched off. In this case, the
brake system functions in the usual manner, but
without antilock assistance.
With the ABS malfunctioning, the BAS and ESP are also
switched off. Both malfunction indicator lamps come on
with the engine running.
If the charging voltage falls below 10 volts, the
malfunction indicator lamp comes on and the ABS is
switched off. When the voltage is above this value again,
the malfunction indicator lamp should go out and the
ABS is operational.
If the ABS malfunction indicator light stays illuminated,
have the system checked at your authorized Mercedes-
Benz Center as soon as possible. Note:
To alert following vehicles to slippery road conditions
you discover, operate your hazard warning flashers as
appropriate.
Wa r n i n g !
ABS cannot prevent the natural laws of physics
from acting on the vehicle, nor can it increase the
traction made available by the road conditions. The
ABS cannot prevent accidents, including those
resulting from excessive speed in turns, following
another vehicle too closely, or aquaplaning. Only a
safe, attentive, and skillful driver can prevent
accidents. The capabilities of an ABS equipped
vehicle must never be exploited in a reckless or
dangerous manner which could jeopardize the
user’s safety or the safety of others.

192 Driving systems
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Electronic stability program (ESP)
The ESP enhances directional control and reduces
driving wheel spin of the vehicle under various driving
conditions.
Over/understeering of the vehicle is counteracted by
applying brakes to the appropriate wheel to create a
countervailing vehicle movement. Engine torque is also
limited. The ESP warning lamp, located in the
speedometer dial, starts to flash when ESP is in
operation.Important!
If the ESP warning lampv flashes:
• During take-off apply as little throttle as possible.
• While driving ease up on the accelerator.
• Adapt your speed and driving to the prevailing road
conditions.
• Do not switch off the ESP.
Caution!
If the vehicle is towed with the front axle raised
(see page 241), the engine must be shut off (key in
steering lock position 0 or 1). Otherwise, the ESP will
immediately be engaged and will apply the rear wheel
brakes.
Wa r n i n g !
ESP cannot prevent the natural laws of physics
from acting on the vehicle, nor can it increase the
traction afforded. The ESP cannot prevent
accidents, including those resulting from excessive
speed in turns, or aquaplaning. Only a safe,
attentive, and skillful driver can prevent accidents.
The capabilities of an ESP equipped vehicle must
never be exploited in a reckless or dangerous
manner which could jeopardize the user’s safety or
the safety of others.