Automatic
transmission
- The
transmission
can
overheat
and
be
dam-
aged
under
certain
driving
and
traffic
condi-
tions
such
as
frequent
starts,
creeping for a
l
ong
time,
or
stop-and-go
traffic.
When
the
@]
or
. indicator
light
turns
on,
stop
the
vehicle
at
the
next
opportunity
and
let
the
transmission
cool
r::!;>
page
70
.
- Allowing
the
vehicle
to
roll
when
the
engine
is
stopped
will
damage
the
S
tron
ic
trans-
mission
because
it
is
not
lubricated
r::!;>
page 290, Towing
with
a
tow
truck.
@ Tips
For
safety
reasons,
the
parking brake is re-
leased
automatically
only
when
the
dr
iver's
safety
belt
is
engaged
in
the
buckle.
Hill descent control
The
hill
descent
control
system assists the driv-
ing when driving down declines.
Hill
descent
control
is
activated
when
the
selec-
tor
lever
is
in
the
Dor
S
posit
i
on
and
you
press
the
brake pedal. The
transmission
automatically
selects
a
gear
that
is
suitable
for
the
incline. Hill
descent
control
tries
to
maintain
the
speed
ach-
ieved
at
the
time
of
braking, within physical and
technical
li
mitations
.
If
may still be necessary
to
adju
st
the
speed
with
the
brakes. Because hill
de-
scent
control
cannot
shift
down
farther
than
3rd
gear,
it
may
be necessary
to
shift
into tiptronic
mode
in
very
steep
areas.
In this case,
shift
into
1st
or
2nd
gear
in
tiptron
ic
mode
to
use
the
en-
gine's
brak
ing force
to
relieve
the
brakes
.
Hill
descent
control
switches
off
once
the
decline
levels
out
or
you
press
the
accelerator
pedal.
On vehicles with a cruise
contro
l system*
r::!;>
page 72, hill
descent
control
is
also activated
when
the
speed
is
set.
A
WARNING
Hill
descent
control
cannot
overcome physical
limitations,
so
it
may
not
be
able
to
maintain
a
constant
speed
under
all
condit
i
ons.
Always
be
ready
to
apply
the
brakes.
68
Shifting manually (tiptronic mode)
The
tiptronic
allow
the
driver
to
shi~
the
gears
manually.
Fig.
66
Center console: manual
shifting
wi
th
the
selector
lever
Fig.
67
Steering wheel: manual
sh
i
fting
wit
h
the
shift
pad-
dles•
Shifting with the selector lever
You
can
shift
in
to
tiptronic
mode
while st
at
ionary
and
wh
il
e
dr
iving.
""
To
shift
i
nto
tiptronic
mode,
push
the
selecto
r
lever from
the
D/S
setting
to
the
right
in
the
tiptronic
shif
t
gate.
Once
the
transmission
has
switched
modes,
the
selector
lever position M
is
shown
in
the
Infotainment
system
display
r::!;>
poge 64,
fig
.
63
. For
examp
le
M4
means
the
fourth
gear
is
engaged.
""
To
shift
up a
gear,
tap
the
selector
lever for-
ward G ¢ fig. 66.
""
To
shift
down a
gear,
tap the
selector
lever
to
backQ .
Shifting with the shift paddles*
You
can
operate
the
shift
paddles
in
the
D/S
or
M
(tiptronic
shift
gate)
selector
lever positions.
""T
o
shift
up
one
gear,
tap the
shift
paddle
G
r::!;>
fig.
67
.
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