If ESP
®
is deactivated and one or more wheels
start to spin, the
÷
ESP
®
warning lamp in
the instrument cluster flashes. In such situa-
tions, ESP
®
will not stabilise the vehicle.
It may be best to deactivate ESP
®
in the fol-
lowing situations:
R
when using snow chains
R
in deep snow
R
on sand or gravel
If you deactivate ESP
®
:
R
ESP
®
no longer improves driving stability.
R
the engine's torque is no longer limited, and
the drive wheels can spin. The spinning of
the wheels results in a cutting action, which
provides better grip.
R
traction control is still activated.
R
ESP
®
still provides support when you
brake.
Off-road ESP
®
(vehicles with off-road
engineering package)
An ESP
®
system specifically suited to off-road
terrain is activated automatically once the off-
road drive program (
Y
page 215) is activated.
The off-road ESP
®
intervenes with a delay if
there is oversteering or understeering, thus
improving traction.
ESP
®
trailer stabilisation
G
WARNING
If road and weather conditions are poor,
trailer stabilisation will not be able to prevent
the vehicle/trailer combination from swerv-
ing. Trailers with a high centre of gravity can
tip over before ESP
®
can detect this. There is
a risk of an accident.
Always adapt your driving style to the prevail-
ing road and weather conditions.
If your vehicle/trailer combination begins to
lurch, you can only stabilise the vehicle/
trailer combination by depressing the brake
firmly.
In this situation, ESP
®
assists you and can
detect if the vehicle/trailer combination
begins to lurch. ESP
®
slows the vehicle down
by braking and limiting the engine output until
the vehicle/trailer combination has stabi-
lised.
Trailer stabilisation is active above speeds of
about 65 km/h.
Trailer stabilisation does not work if ESP
®
is
deactivated or disabled because of a mal-
function.
EBD (electronic brake force distribu-
tion)
i
Observe the "Important safety notes" sec-
tion (
Y
page 65).
G
WARNING
If EBD has malfunctioned, the rear wheels can
still lock, e.g. under full braking. This increa-
ses the risk of skidding and an accident.
You should therefore adapt your driving style
to the different handling characteristics. Have
the brake system checked at a qualified spe-
cialist workshop.
Observe the notes on warning and indicator
lamps (
Y
page 286) as well as display mes-
sages (
Y
page 248) (4-button multifunction
steering wheel) and (
Y
page 253) (12-button
multifunction steering wheel).
EBD monitors and controls the brake pres-
sure on the rear wheels to improve driving
stability while braking.
PRE-SAFE
®
Brake
i
Observe the "Important safety notes" sec-
tion (
Y
page 65).
PRE-SAFE
®
Brake is only available in vehicles
with DISTRONIC PLUS.
PRE-SAFE
®
Brake can help you to minimise
the risk of a collision with a vehicle ahead or
reduce the effects of such a collision. If PRE-
Driving safety systems
69
Safety
Z
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