ABS warning light MERCEDES-BENZ S550 2007 W221 Owner's Manual

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Pages: 705

Page 70 of 705

MERCEDES-BENZ S550 2007 W221 Owners Manual 69 Safety and Security
Driving safety systems
Driving safety systems
This section contains information about
Adaptive Brake Lights as well as the follow-
ing driving safety systems:
ABS (A
ntilock

69 Safety and Security
Driving safety systems
Driving safety systems
This section contains information about
Adaptive Brake Lights as well as the follow-
ing driving safety systems:
ABS (A
ntilock B
rake S
ystem)

Adaptive Brake

BAS (B
rake A
ssist S
ystem)

BAS Plus* (B
rake A
ssist S
ystem Plus*)

EBP (E
lectronic B
rake P
roportioning)

ESP
® (E
lectronic S
tability P
rogram)

ETS (E
lectronic T
raction S
ystem)
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 to light brake pressure.
The - indicator lamp in the instrument
cluster (
page 28) comes on when you
switch on the ignition (
page 315). It goes
out when the engine is running.
Braking
At the instant one of the wheels is about to
lock up, a slight pulsation can be felt in the
brake pedal, indicating that the ABS is in
the regulating mode.

Keep firm and steady pressure on the
brake pedal while experiencing the pul-
sation.
Continuous, steady brake pedal pressure
yields the advantages provided by the ABS,
namely braking power and the ability to
steer the vehicle.
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, BAS Plus*, EBP, ESP
® and
ETS cannot reduce this risk.
Always adjust your driving style to the pre-
vailing road and weather conditions.i
In winter operation, the maximum effective-
ness of the ABS, Adaptive Brake, BAS,
BAS Plus*, EBP, ESP
® and ETS is only achieved
with winter tires (
page 530), 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.

Page 71 of 705

MERCEDES-BENZ S550 2007 W221 Owners Manual 70 Safety and SecurityDriving safety systemsThe pulsating brake pedal can be an indica-
tion of hazardous road conditions and
functions as a reminder to take extra care
while driving.
Emergency brak

Page 381 of 705

MERCEDES-BENZ S550 2007 W221 Owners Manual 380 Controls in detailDriving systemsThe driving systems of your vehicle are de-
scribed on the following pages:
Cruise control and DISTRONIC Plus*,
with which the vehicle can maintain a
preset spe

380 Controls in detailDriving systemsThe driving systems of your vehicle are de-
scribed on the following pages:
Cruise control and DISTRONIC Plus*,
with which the vehicle can maintain a
preset speed.

Distance warning function* (only avail-
able with DISTRONIC Plus*), which
warns of a stationary obstacle or slow-
er moving vehicle that you are closing
on to quickly.

Airmatic (S 550 only) and ABC* adjust
the vehicle suspension characteristics
automatically and control the vehicle
level.

Parktronic* and Park Assist*, which
serve as a parking assistant.

Dynamic Rear View Monitor* is an
electronic and visual parking aid.

Night View Assist* illuminates the road
with infrared light in addition to the nor-
mal headlamps.For information on the ABS, Adaptive
Brake, BAS, BAS Plus*, EBP, and ESP
® driv-
ing systems, see “Driving safety systems”
(
page 69).
Cruise control
Cruise control automatically maintains the
speed you set for your vehicle.
The use of cruise control is recommended
for driving at a constant speed for extend-
ed periods of time. You can set or resume
cruise control at any speed over 20 mph
(30 km/h).
The cruise control function is operated by
means of the cruise control lever.
Warning!
G
Cruise control is a convenience system de-
signed to assist the driver during vehicle op-
eration. The driver is and must always
remain responsible for the vehicle’s speed
and for safe brake operation.
Only use the cruise control if the road, traffic
and weather conditions make it advisable to
travel at a steady speed.
The use of cruise control can be danger-
ous on winding roads or in heavy traffic
because conditions do not allow safe
driving at a steady speed.

The use of cruise control can be danger-
ous on slippery roads. Rapid changes in
tire traction can result in wheel spin and
loss of control.

Deactivate cruise control when driving
in fog.
The “Resume” function should only be oper-
ated if the driver is fully aware of the previ-
ously set speed and wishes to resume this
particular preset speed.

Page 685 of 705

MERCEDES-BENZ S550 2007 W221 Owners Manual 684 Index
Setting a slower speed 394
Setting following distance 396
Setting the current speed 393
Setting to last stored speed (“Resume”
function) 395
Warning and indicator lamps 388
Warning lamp

ABS warning light MERCEDES-BENZ S550 2007 W221 Owner's Manual

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