Self-Study Program

59
Adaption drive
Step 1:
Firstly, the aforementioned adaption conditions
must be fulfilled.
Step 2:
When the engine is running at idling speed, the
vehicle is stationary and the brake is applied, move
the selector lever from "N" to "D" and keep it in
position "D" for at least 3 sec.
Repeat this procedure 5 times. Then carry out the
same procedure for the gearshift from "N" to "R".
Step 3:
Accelerate the vehicle in selector lever position "D"
from a standing start until 6th gear is engaged and
the vehicle is travelling at a speed of approx. 80 kph,
or more. The main thing is that an accelerator pedal
angle between 25 % and 30 % is maintained (check
this using the diagnostic tester). After this, allow
the vehicle to coast and bring the vehicle to a
standstill within 60 seconds by applying minimal
brake pressure. Repeat this procedure 10 times.
Step 4:
Shift quality assessment.
Deleting adaption values
The adaption values of the 09D gearbox are
preserved even if the power supply to the gearbox
control unit is cut off (e.g. battery is disconnected,
etc.). However, they can be deleted using the "Basic
setting 04" function on the diagnostic tester.
The function Basic setting 04 can be used not only
to delete adaption value, but also to teach in the
kick-down point and activate the steering wheel
tiptronic function (if available).
When does the basic setting procedure have to be
performed?
– after replacing the gearbox
– after replacing the gearbox control unit J217
– after changing the ATF
– after repair work on the gearbox (e.g. replacing
the valve assembly, clutch repairs)
– after replacing or after removing and installing
the accelerator position sender G79/G185
– after complaints about shift comfort
– possibly after engine repairs (e.g. after replacing
engine, engine control unit, etc.)
– possibly after a software update
It is recommended to perform an adaption drive
after deleting adaption values or carrying out the
basic setting procedure.
An adaption drive must always be performed after
deleting adaption values due to complaints about
shift comfort.