4ETS (Electronic Traction System)
i
Observe the "Important safety notes" sec-
tion (
Y
page 52).
4ETS traction control is part of ESP
®
.
4ETS traction control is no longer active above a
speed of approximately 60 km/h.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, e.g. if
the road surface is slippery on one side. In addi-
tion, more drive torque is transferred to the
wheel or wheels with traction.
Traction control remains active if you deactivate
ESP
®
.
Important safety notes
i
Observe the "Important safety notes" sec-
tion (
Y
page 52).
G
WARNING
If ESP
®
is malfunctioning, ESP
®
is unable to
stabilise the vehicle. In addition, other driving
safety systems are switched off. This increa-
ses the risk of skidding and an accident.
Drive on carefully. Have ESP
®
checked at a
qualified specialist workshop.
!
Only operate the vehicle for a maximum of
ten seconds on a brake dynamometer. Switch
off the ignition.
Application of the brakes by ESP
®
may oth-
erwise destroy the brake system.
!
A function or performance test should only
be carried out on a twin-axle dynamometer.
Before you operate the vehicle on such a
dynamometer, please consult a qualified
workshop. You could otherwise damage the
drive train or the brake system.
If the
å
ESP
®
OFF warning lamp lights up
continuously, ESP
®
is deactivated.
If the
÷
ESP
®
warning lamp lights up contin-
uously, ESP
®
is not available due to a malfunc-
tion.
Observe the information on warning lamps
(
Y
page 159) and display messages which may
be displayed in the instrument cluster
(
Y
page 142).
Use only wheels with the recommended tyre
sizes. Only then will ESP
®
function properly.
If differential locks are switched on, ABS, BAS
and ESP
®
switch off automatically.
Characteristics of ESP
®
General information
If the
÷
ESP warning lamp goes out before
you begin the journey, ESP
®
is automatically
active.
If ESP
®
intervenes, the
÷
ESP
®
warning lamp
flashes on the instrument cluster.
If ESP
®
intervenes:
X
Do not deactivate ESP
®
under any circum-
stances.
X
When pulling away, depress the accelerator
pedal only as far as is necessary.
X
Adapt your driving style to suit the prevailing
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically if the vehicle stops
moving. When the vehicle pulls away again, the
engine starts automatically. ESP
®
remains in its
previously selected status, e.g. if ESP
®
was
deactivated before the engine was automati-
cally switched off.
Deactivating/activating ESP
®
Important safety notes
i
Observe the "Important safety notes" sec-
tion (
Y
page 52).
You can select between the following ESP
®
sta-
tuses:
R
ESP
®
is activated
R
ESP
®
is deactivated
G
WARNING
If you deactivate ESP
®
, ESP
®
no longer sta-
bilises the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP
®
in the situations descri-
bed in the following.
54
Driving safety systems
Safet
y
