brakes MERCEDES-BENZ SL500 2003 R230 Owner's Manual

Contents
Retractable hardtop........................... 159
Opening and closing the retractable
hardtop ........................................ 159
Driving systems ................................. 168
Cruise control .............................. 168
Distronic* .................................... 171
Active Body Control (ABC) ........... 183
Parktronic system* ...................... 186
Useful features .................................. 190
Interior storage spaces ................ 190
Ashtray......................................... 196
Cigarette lighter ........................... 197
Heated steering wheel* (Canada
only–model SL 500) ..................... 197
Easy-Pack load assist in the trunk 198
Electrical outlet ............................ 199
Telephone* .................................. 199
Tele Aid ........................................ 200
Garage door opener ..................... 208Operation......................................... 213
The first 1000 miles (1500 km) ......... 214
Driving instructions............................ 215
Drive sensibly – save fuel............. 215
Drinking and driving ..................... 215Pedals ........................................... 215
Power assistance .......................... 216
Brakes........................................... 216
Driving off ..................................... 218
Parking.......................................... 218
Tires .............................................. 219
Hydroplaning................................. 219
Tire traction .................................. 220
Tire speed rating ........................... 220
Winter driving instructions ............ 221
Standing water.............................. 222
Passenger compartment ............... 222
Driving abroad .............................. 222
Control and operation of radio trans-
mitters .......................................... 222
Catalytic converter........................ 223
Emission control ........................... 224
Coolant temperature..................... 224
At the gas station ............................... 225
Check regularly and before a
long trip ........................................ 226Engine compartment .......................... 227
Hood ............................................. 227
Engine oil ...................................... 228
Transmission fluid level ................ 230
Oil level in the ABC system ........... 230
Coolant ......................................... 230
Battery .......................................... 232
Windshield washer system and
headlamp cleaning system ........... 233
Tires and wheels ................................ 234
Important guidelines ..................... 234
Life of tires ................................... 235
Direction of rotation ..................... 235
Checking tire inflation pressure .... 235
Rotating wheels ............................ 238
Winter driving ..................................... 239
Winter tires ................................... 239
Block heater (Canada only) ........... 240
Snow chains ................................. 240
Maintenance ...................................... 241
Clearing the service indicator ....... 241
Service term exceeded ................. 241
Calling up the service indicator .... 242
Resetting the service indicator ..... 242
Vehicle care ....................................... 243
Cleaning and care of the vehicle ... 243

69 Safety and Security
Driving safety systems
The
-
warning lamp in the speedome-
ter (
page 21) lights up when you turn the
key to position1 or2. It goes out when the
engine is running.
Flashing warning lamp while braking
The v
warning lamp flashes whenever
the ABS is activated. Always adapt your
driving style to the prevailing road and
weather conditions.

When the ABS is in the regulating
mode, continue to apply pressure on
the brake pedal.
BAS
The Brake Assist System (BAS) operates in
emergency situations. If you apply the
brakes very quickly, the BAS automatically
provides full brake boost thereby potential-
ly reducing the braking distance. Apply
continuous full braking pressure until the
emergency braking situation is over. The
ABS will prevent the wheels from locking.
When you release the brake pedal the
brakes function again as normal. The BAS
is then deactivated.
Warning!
G
The ABS cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase braking or steering efficiency be-
yond that afforded by the condition of the
vehicle brakes and tires or the traction af-
forded. The ABS cannot prevent accidents,
including those resulting from excessive
speed in turns, following another vehicle too
closely, or aquaplaning. Only a safe, atten-
tive, and skillful driver can prevent acci-
dents. The capabilities of an ABS equipped
vehicle must never be exploited in a reck-
less or dangerous manner which could jeop-
ardize the user’s safety or the safety of
others.

70 Safety and SecurityDriving safety systems
ESP
The Electronic Stability Program (ESP)
monitors the vehicle's traction (force of
adhesive friction between the tires and the
road surface) and handling.
The ESP recognizes when a wheel is spin-
ning or if the vehicle starts to skid. By ap-
plying brakes to the appropriate wheel and
by limiting engine output, the ESP works to
stabilize the vehicle. The ESP is especially
useful while driving off and on wet or slip-
pery road surfaces.
The ABS/ESP warning lamp
v
in the
speedometer dial flashes when the ESP is
engaged.
The warning lamp
v
in the speedome-
ter dial (
page 21) lights up when you
turn the key to position1 or2. It goes out
when you start the engine
Warning!
G
BAS cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase braking efficiency beyond that af-
forded by the condition of the vehicle brakes
and tires or the traction. The BAS cannot
prevent accidents, including those resulting
from excessive speed in turns, following an-
other vehicle too closely, or hydroplaning.
Only a safe, attentive, and skillful driver can
prevent accidents. The capabilities of a BAS
equipped vehicle must never be exploited in
a reckless or dangerous manner which
could jeopardize the user’s safety or the
safety of others.
Warning!
G
Never switch off the ESP when you see the
ABS/ESP-warning lamp
v
flashing in
the speedometer dial. In this case proceed
as follows:


While driving off, apply as little throttle
as possible.


While driving, ease up on the accelera-
tor.


Adapt your speed and driving style to
the prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid.
The ESP cannot prevent accidents resulting
from excessive speed.

72 Safety and SecurityDriving safety systemsThe button is located in the lower part of
the center console.
1ESP on/off
Press ESP button1 until the ESP warn-
ing lamp
v
in the speedometer
lights up.
ESP is deactivated.
If one or more wheels are spinning, the
ESP warning lamp v
in the speedome-
ter flashes, regardless of the speed.
Traction control brakes a spinning wheel
even when ESP is deactivated.
ESP always operates when you are brak-
ing, even when it has been deactivated.Switching on ESP

Press button1.
The ESP warning lamp
v
in the
speedometer goes out. You are now
again in normal driving mode.
SBC brake system
The SBC brake system combines a hydrau-
lic brake circuit with electronically con-
trolled brake servo assistance. You have
increased braking safety and improved
braking comfort.
!Avoid spinning of a drive wheel for an
extended period with the ESP switched
off. This may cause serious damage to
the drive train which is not covered by
the Mercedes-Benz Limited Warranty.Warning!
G
When the ESP warning lamp
v
is
illuminated continuously, ESP is switched
off.
Adapt your speed and driving to the prevail-
ing road conditions and to the non-operating
status of the ESP.
Warning!
G
Never ignore a brake malfunction indicated
in the speedometer display, for example by
the
;
(USA only) or
3
(Canada only)
indicator lamp. Refer to the “Practical hints”
section (
page 253). Also read and ob-
serve the messages in the instrument clus-
ter display (page 257).

73 Safety and Security
Driving safety systems
The SBC brake system is automatically ac-
tivated when you:

unlock the vehicle with the key or the
KEYLESS-GO* card


open the driver’s or passenger door


turn the key in the starter switch to
position1


in vehicles with KEYLESS-GO*, press
start/stop button on selector lever
once


depress the brake pedal


release the parking brake
Warning!
G
The SBC brake system requires electrical
power to operate.
A malfunction in the vehicle’s power supply
or electrical system may impair brake sys-
tem operation and switch it into its emer-
gency operation mode. In such a case, the
red brake warning lamp (
page 253) and
the warning messages (
page 265) light up
while driving. To brake, the driver must then
apply significantly greater brake pedal pres-
sure and depress the pedal much further to
obtain the expected braking effect. If neces-
sary, apply full pressure to the brake pedal.
Brakes are only applied to the front wheels.
Stopping distance is increased!
If there is a malfunction in the SBC brake
system, we recommend that the vehicle be
transported with all wheels off the ground
using flatbed or appropriate wheel lift/dolly
equipment.
A tow bar must be used if circumstances
do not permit the use of the recommended
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on
the ground is only permissible for distances
up to 30 miles (50 km) and at a speed not
to exceed 30 mph (50 km/h). For more in-
formation, refer to “Towing the vehicle”
(page 325).
iIf the SBC brake system is activated as
the brake pedal is first depressed, you
may feel a reduced pedal resistance
and longer pedal travel than normal.
When releasing the pedal, you may also
feel the brake pedal pulsate and you
may hear a sound which is caused by
the activation of the SBC pump. This is
normal and not an indication of a mal-
function. Pedal travel returns to normal
when you release the brake pedal and
the sound soon ceases.

74 Safety and SecurityDriving safety systems
The SBC brake servo assistance switches
off automatically when you

remove the key from the starter switch
(after approximately two minutes)


lock the vehicle (after approximately
20 seconds)
Note on driving with SBC


Following extended periods of only mi-
nor loads to your brake system, you
should occasionally apply the brakes
when traveling at high speeds. This im-
proves the grip of the brake pads.


After driving on wet or snow-covered
roads, you should apply your brakes
firmly before parking your vehicle. This
produces heat which serves to dry the
brake disks and help prevent corro-
sion.


On long and steep grades, shift to a
lower gear (gear range1, 2, or 3) to
prevent the brakes from overheating
and to reduce brake wear.


After hard braking, it is advisable to
drive on for some time so that the air
stream will cool down the brakes fast-
er.


Only Mercedes-Benz approved compo-
nents (e.g. brake pads) should be in-
stalled on your vehicle. Brake pads not
approved by Mercedes-Benz may im-
pair the safety of your vehicle.
Warning!
G
Have brake pad replacement and other work
on the SBC brake system carried out by
qualified technicians only. Contact your
Mercedes-Benz Center for further informa-
tion. The SBC brake system must be deacti-
vated prior to working on the system. High
pressure is intermittently built up in the sys-
tem as part of its automatic self-test. In ad-
dition, the system is automatically activated
when the vehicle is unlocked by remote con-
trol, when the driver or passenger door is
opened, when the key in the starter switch
is turned to position1, when the brake ped-
al is depressed or when the parking brake is
released. Failure to deactivate the system
prior to maintenance will cause brake pis-
tons to extend and brake fluid to leak, which
may result in injuries (contusions and acid
burns). Extended brake pistons may also
cause injury.
Warning!
G
Be very careful not to endanger other road
users when you apply the brakes.

140 Controls in detailAutomatic transmissionGear selector lever position
Effect
P
Park position
Selector position when the vehicle is
parked. Only place selector lever in
positionP when vehicle is stopped.
The park position is not intended to
serve as a brake when the vehicle is
parked. Rather, the driver should al-
ways set the parking brake in addi-
tion to placing the selector lever in
positionP to secure the vehicle.
The key can only be removed from
the starter switch with the selector
lever in positionP.
R
Reverse gear
Place selector lever in positionR
only when vehicle is stopped.
Effect
N
Neutral
No power is transmitted from the en-
gine to the drive axle. When the
brakes are released, the vehicle can
be moved freely (pushed or towed).
To avoid damage to the transmis-
sion, never engageN while driving.
If ESP is deactivated or malfunction-
ing:
Only move selector lever toN if the
vehicle is in danger of skidding (e.g.
on icy roads).
D
Drive
The transmission shifts automatical-
ly. All five forward gears are avail-
able.
!Coasting the vehicle, or driving for any
other reason with selector lever inN,
can result in transmission damage that
is not covered by the Mercedes-Benz
Limited Warranty.Warning!
G
Getting out of your vehicle with the selector
lever not fully engaged in positionP is dan-
gerous. Also, positionP alone is not intend-
ed to or capable of preventing your vehicle
from moving, possibly hitting people or ob-
jects.
Always set the parking brake in addition to
shifting to positionP (
page 47).
When parked on an incline, also turn the
front wheels towards the road curb.

174 Controls in detailDriving systems
Distronic menu in the control system
In the Distronic menu you can read the cur-
rent settings for Distronic. What appears in
the left display field depends on whether
the Distronic is turned on or off.
Press button
è
or
ÿ
repeatedly
until you see one of the following dis-
plays.Distronic deactivated
When Distronic is deactivated you will see
the standard display in the left display
field.
1Vehicle ahead, if detected
2Actual distance to vehicle ahead
3Should-be distance to vehicle ahead
4Your vehicle
5Symbol for activated distance warning
function
Warning!
G
The Distronic brakes your vehicle with a
maximum of 6.5 ft/s
2 (2 m/s
2). This corre-
sponds to about 20% of the maximum decel-
eration ability of your vehicle.
Distronic brakes the vehicle in an effort to
restore the preset distance or to maintain
the speed. The brake pedal is automatically
applied as this happens which results in the
brake pedal moving.
Keep driver’s foot area clear at all times, in-
cluding the area under the brake pedal. Ob-
jects stored in this area may impair pedal
movement which could interfere with the
braking ability of the Distronic system.
Do not place your foot under the brake pedal
– your foot could become caught.

178 Controls in detailDriving systemsDeactivating Distronic
There are several ways to deactivate the
Distronic system:
Briefly tip the cruise control lever in the
direction of arrow3 (
page 175).
or

Step on the brake pedal.
Distronic will be deactivated. The last
speed set will be stored into memory.Distronic deactivates automatically when


you set the parking brake


you drive slower than 25 mph
(Canada: 40 km/h)


ESP is active (
page 70) or you deac-
tivate ESP


You move the transmission selector le-
ver into positionN.
A signal will sound. The
DTR off
mes-
sage appears in the speedometer dis-
play for approximately five seconds.Setting the following distance in
Distronic
You can set the specified following for Dis-
tronic by varying the time setting between
1.0 and 2.0 seconds. Using this time set-
ting and the current speed of your vehicle,
Distronic calculates and sets the required
following distance to the vehicle ahead.
The set distance will be shown in the
speedometer display field.
The thumbwheel for making the time set-
ting is located on the lower section of the
center console.
iThe last stored speed is deleted when
you turn off the engine.
Warning!
G
Distronic switches off and releases the
brakes when the vehicle decelerates below
the minimum speed of 25 mph ( 40 km / h)
by operation of the system. At that time the
driver must apply the brakes in order to re-
duce vehicle speed further or bring it to a
stop.
Warning!
G
It is up to the driver to exercise discretion to
select the appropriate setting given road
conditions, traffic, driver’s preferred driving
style and applicable laws and driving recom-
mendations for safe following distance.

180 Controls in detailDriving systems
Activating
Press switch1.
The indicator lamp on the switch lights
up. A loudspeaker symbol appears in
the speedometer display (
page 174).
Deactivating

Press switch1.
The indicator lamp on the switch goes
out. No loudspeaker symbol appears in
the speedometer display.Driving with Distronic
This section describes a number of driving
situations where special precaution is re-
quired on the part of the driver. Be pre-
pared to brake in such situations. This will
deactivate the Distronic system.
Warning!
G
If the DTR warning lamp (red)
E
in the
speedometer dial lights up while driving
and/or an intermittent warning sounds, im-
mediate attention on the part of the driver is
required.
As required by the traffic situation, apply the
brakes and navigate around a possible ob-
stacle. However, do not drive by relying on
the distance warning function, as this will re-
sult in an emergency braking application.
Especially depending on road surface condi-
tions and driver reaction, this will not always
enable you to avoid a collision.
iComplex driving situations are not al-
ways fully recognized by Distronic. This
could result in wrong or missing dis-
tance warnings.