Start and driving
Gear-change recommendation
Selecting the optimal gear
Depending on the equipment on the instru-
ment panel screen, a r
ecommendation is
shown with the gear that should be engaged
to optimise consumption.
The lever must be in Tiptronic mode
›››
page 218.
No recommendation will appear if the opti-
mal gear is engaged. The current gear will be
displayed.
Display Meaning
Optimum gear.
Changing to a higher gear is recom-
mended.
Changing to a lower gear is recom-
mended.
Information regarding the “cleanliness” of
the particulat
e filt
er
When the exhaust system detects that the
particulate filter is close to saturation, this
system’s self-cleaning function recommends
the optimal gear for that function
›››
page 318.
WARNING
The gear change recommendation is an
auxiliary function and in no case should be
a substitute for careful driving.
●
Responsibility for selecting the correct
gear, depending on the circumstances,
rests solely with the driver.
For the sake of the environment
Selecting the correct gear can help to save
fuel.
Note
The indication of the recommended gear
turns off when the lever is taken out of the
Tiptronic position.
Hill Descent Control (HDC)
Control lamps
It lights up white
Hill Descent Control is active.
It lights up grey
Hill Descent Control is not active. The system is switch-
ed on, but is not adjusting.
Some control and warning lamps will light up
briefly when the ignition is s
wit
ched on to
check certain functions. They will switch off
after a few seconds.
WARNING
Observe the safety warnings
›››
in Con-
trol and w
arning lamps on page 83.
Description and operation
Hill Descent Control limits the speed on
st
eep descents b
y automatically braking all
four wheels, both when moving forward and
in reverse. As the anti-lock brake system re-
mains active, it prevents the wheels from
locking.
After starting the descent of a slope below
30 km/h (18 mph), speed is limited to a mini-
mum of 2 km/h (1 mph) and a maximum of
30 km/h (18 mph). When appropriate, the
driver may increase or decrease the speed
within the limit by pressing the accelerator or
the brake. At this point the function is inter-
rupted and, if necessary, it is then reactiva-
ted.
Even so, it is imperative that the surface
guarantees sufficient adhesion. For this rea-
son, the Hill Descent Control will not fulfil its
function when, for example, descending a
slope with a frozen or slippery surface.
»
223
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