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When the automatic transmission has cooled
down (transmission oil temperature below
-5°C), the electronic management system
only engages the reverse gear or 2nd forward
gear. When the transmission oil temperature
exceeds -5°C again, all gears can be selected
again.
Stopping
* NOTE Transmission damage caused by
rolling in neutral position
If the vehicle rolls for a relatively long time in
neutral position (e.g. when towing), this can
lead to transmission damage.
If the continuous brake (engine brake/
retarder) is switched on, the engine speed for
a downshift is higher than when the continu‐
ous brake is switched off.
Only allow the vehicle to roll for a short
#
time in neutral position.
If you stop briefly, e.g. at traffic lights:
maintain the shift position and hold the vehi‐
#
cle with the service brake.
If you remain stopped for a relatively long time
with the engine running:
switch to neutral position.
#
The Ü indicator lamp in the instrument
cluster lights up.
Driving tips
Acceleration
The shift timing point can be actively influenced
by the accelerator pedal position:
accelerate less strongly for early upshifts.
#
accelerate more strongly for late upshifts.
#
kickdown for maximum upshift delay or
#
extremely early downshifts.
Kickdown
The kickdown serves to increase the driving per‐
formance and to accelerate the vehicle as much
as possible, if necessary.
Depress the accelerator pedal beyond the
#
pressure point as far as it will go. The auto‐
matic transmission shifts to a lower gear,
depending on the engine speed.
Ease off on the accelerator pedal once the
#
desired speed is reached. The automatic
transmission shifts up again.
Driving on uphill or downhill gradients
* NOTE Danger of engine damage if the
limiting speed is exceeded
If the shift range is limited, the engine speed
can exceed the limiting speed.
Exceeding the limiting speed for a relatively
long time can lead to engine damage.
If the shift range is limited, do not allow
#
the engine speed to enter the red dan‐
ger zone of the rev counter.
When driving on extremely steep uphill or
#
downhill gradients, select a shift range with
high engine and engine braking power in
good time.
Manoeuvring and rocking free
When manoeuvring in confined spaces:
dosed braking to regulate the driving speed.
#
accelerate slowly and evenly.
#
%
At low speed, you can change between drive
position h and reverse gear k without
braking. This helps, for example, when
manoeuvring quickly or rocking free in snow
or slush.
Operation
Displaying the axle load
Vehicles with air suspension: the vehicle may be
equipped with an axle load display. The axle load
display is not calibrated, nor is it a system capa‐
ble of being calibrated. The measured data pro‐
vide only an approximate guide. The values can‐
not be used for official purposes. In order to
avoid inaccuracies in the measurement, make
sure that the vehicle is uniformly laden. When the
chassis is at driving level, the axle load measuring
system determines the axle load from the pres‐
sure in the air suspension bellows.
Park the vehicle horizontally.
#
Apply the parking brake.
#
Set the driving level (
/
#
Select the
Status
menu and
#
in the multimedia system.
The axle load of the individual axes and the
gross vehicle weight are displayed.
Driving mode 225
page 263).
Axles
menu item
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