E Accelerate only slightly and avoid jolt-
ing.
Trailer towing
E Run the engine in the moderate engine
speed range on steep uphill gradients.
E Depending on the uphill or downhill
gradient, shift down to shift range 3 or
2(
e page 181), even if cruise control is
switched on.
Working on the vehicle
G
Risk of accident
Apply the parking brake and move the selec-
tor lever to P when working on the vehicle.
Otherwise, the vehicle could roll away.
Operating the vehicle
Driving safety systems which may form
part of your vehicle are described on the
following pages:
I
Start-off assist (AAS) (e page 182),
which assists you when pulling away.
I
Acceleration skid control (ASR)
(
e page 183), which improves the driv-
ing stability of the vehicle.
I
Electronic Stability Program (ESP
®
)
(
e page 184), which improves the driv-
ing stability of your vehicle.
I
Electronic Traction System (4-ETS)
(
e page 184), which improves the driv-
ing stability on vehicles with permanent
all-wheel drive.
I
Tyre pressure monitor (e page 185),
which monitors the tyre pressure.
The ABS, BAS and EBV driving safety sys-
tems are described in the “Braking” sec-
tion.
The cruise control, Speedtronic and Park-
tronic driving systems are described in the
"Driving systems" section.
Start-off assist (AAS)
On vehicles with manual transmission,
AAS assists you when starting off.
AAS automatically maintains the brake
pressure for around 2 more seconds after
the brake pedal is released. This makes it
possible to start off without the vehicle im-
mediately rolling away on slight uphill gra-
dients.
AAS is deactivated:
I
on level surfaces
I
in neutral
I
when the parking brake is applied
G
Risk of accident
AAS is not a parking brake. The vehicle may
roll away on uphill and downhill gradients.
Always apply the parking brake when park-
ing.
On vehicles without steering wheel but-
tons, there is a malfunction when the
k indicator lamp lights up constantly
while the engine is running (
e page 270).
i AAS is no longer available if ESP
®
is deacti-
vated due to a malfunction (
e page 270).
Controls
Operating the vehicle
182
3
Nur fuer internen Gebrauch