please consult a qualified specialist workshop
in advance. You could otherwise damage the
drive train or the brake system.
If you activate or deactivate the all-wheel drive
in a vehicle with this option, ESP
®
will be deac-
tivated for the duration of the activation/deac-
tivation process.
If ESP
®
is malfunctioning, the h indicator
lamp lights up while the engine is running and
the engine power may be reduced
(
Y page 194).
i
Only use wheels with the recommended tire
sizes. Only then will ESP
®
function properly.
4ETS (Electronic Traction System)
!
A function or performance test should only
be carried out on a two-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.
4ETS is only active when all-wheel drive is acti-
vated (
Y page 148).
4ETS ensures permanent drive for all four
wheels, and together with ESP
®
it improves the
vehicle's traction.
If a driven wheel spins due to lack of traction:
R
When pulling away, make use of the traction
control integrated in ESP
®
. Depress the
accelerator pedal as far as necessary.
R
While driving, slowly take your foot off the
accelerator pedal.
In wintry driving conditions, always use winter
tires (M+S tires) and if necessary, snow chains
(
Y page 249). This is the only way to get the full
benefit from the all-wheel drive system.
Crosswind Assist
Crosswind Assist does not work if ESP
®
is deac-
tivated or disabled because of a malfunction.
Crosswind Assist does not react:
R
in the event of severe jolts and vibrations, e.g.
as a result of uneven surfaces or potholes
R
if the vehicle loses traction, e.g. on snow or
ice or when aquaplaning
R
to large and sudden steering movements by
the driver
Crosswind Assist is operational again as soon as
the driving conditions return to normal.
Crosswind Assist detects strong crosswind
gusts that can impair the road holding of your
vehicle when driving straight ahead. Crosswind
Assist intervenes depending on the direction
and strength of the crosswind.
A stabilizing brake application helps you to keep
the vehicle on track.
Information appears in the instrument cluster In
the event that Crosswind Assist intervenes
noticeably.
On vehicles without steering wheel buttons:
the d indicator lamp in the instrument clus-
ter flashes.
On vehicles with steering wheel buttons: the
d indicator lamp in the instrument cluster
flashes and the message Crosswind Assist
Active appears in the multifunction display.
Crosswind Assist is active above a vehicle speed
of 50 mph (80 km/h) when the vehicle is driving
straight ahead or cornering gently.
Emergency exit
Emergency exit window
G
WARNING
The emergency exit window cannot be locked
in place. You risk injury if you exit the vehicle
through the emergency exit window.
R
Make sure that nobody becomes trapped,
both when closing and when opening the
emergency exit window.
R
The opened emergency exit window must
be held in place by another person.
Pay attention to traffic conditions.
G
WARNING
If the emergency exit window is unlocked
while driving, it could open and slam shut and
consequently fall down. There is a risk of an
accident and injury.
Before starting off, make sure that the emer-
gency exit window is locked and the locking
pins are undamaged.
!
Make sure there is sufficient clearance
when opening the emergency exit window.
Emergency exit
55
Safety
Z
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