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Gearshifts are only executed at shift points defined by
the electronic control unit. Manual intervention in the
automatic shifting process (shifting through driving
ranges) is not expedient.
DANGER !
If the push button “N” is depressed during driving
operation, the power flow between engine and output
will be interrupted.
Engine and retarder braking action are then lost.
Risk of accident!-Apply the brake!
For safety reasons, when faults occur in the electronic
control unit, or whenever there is a power failure, the
transmission will automatically select “Neutral”.
(3) Starting the Engine
The engine may only be started under the following
conditions:
Vehicle standstill
Activated service or parking brake
Push-button selector in Neutral position (“N”)
NOTE: Starting interlock: If the push-button selector
is not in neutral position, engine start will as a rule be
prevented. For details consult the vehicle operating
instructions of the vehicle manufacturer.
It may be possible to start the engine when the
pushbutton selector is not in neutral position. In such
a case, the push button depressed will flash after the
engine starts, and the transmission will remain in
Neutral. To drive off, the push button “N” will then
have to be depressed and subsequently the desired
driving-range push button on the push-button range
selector.
CAUTION: Only jump-start on the battery, never on
the starter! Do not turn the vehicle key while driving!
(4) Engaging a Gear
Never operate the push-button range selector and step
on the accelerator at the same time!
Warm up the engine for about 5 minutes, with the
pushbutton range selector in neutral position, after
prolonged standstill at ambient temperatures below
-20
℃
.
①
Standard
Accelerator pedal in idling position
< 900 rpm
Vehicle standstill
Activated service or parking brake
Select desired driving range by depressing
corresponding push button on push-button range
selector.
In the following cases engagement of a starting gear is
prevented by the electronic control unit in spite of a
selected driving range (push button depressed). In
such cases, the push button depressed will flash:
Accelerator pedal operated
> 900 rpm
Driving speed > approx. 3 km/h and driving
range selected do not correspond to actual
driving direction.
Transmission oil sump temperature below -20
℃
.
②
Transmission with Additional Functions
i.
Additional Function “Gear Release”
(Additional installation by vehicle manufacturer,
recommended by ZF!)
Engagement of a starting gear is prevented by the
electronic control unit in spite of a selected driving
range (push button depressed) in the following case.
In this case, the push button depressed will flash:
Neither service nor parking brake activated
Operation of the service or parking brake will cause
the starting gear to engage and the depressed push
button will change from flashing to functional
illumination.
ii.
Additional Function “Additional Push Button
Reverse Gear”
For engagement of the reverse gear, depress the R
push button of the push-button range selector and
promptly also the R push button on the instrument
panel. Engagement of the reverse gear will be
prevented by the electronic control unit in spite of the
depressed R push button of the push-button range
selector in the following case. In this case, the R push
button depressed will flash:
Additional R push button on instrument panel not
depressed
