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WLF0 - Re-Programming PDK Control Unit (Workshop Campaign)

Important:

CRITICAL WARNING -This campaign includes steps where control unit(s) in the vehicle will be
programmed with the PIWIS Tester. The vehicle voltage must be maintained between 13.5 volts and 14.5
volts during this programming. Failure to maintain this voltage could result in damaged control unit(s).
Damage caused by inadequate voltage during programming is not a warrantable defect. The technician
must verify the actual vehicle voltage in the PIWIS Tester before starting the campaign and also document
the actual voltage on the repair order.

Model Year:

As of 2017

Vehicle Type:

Panamera 4 E-Hybrid Sport Turismo (971)
Panamera 4S (971) / Panamera 4S Sport Turismo (971)
Panamera Turbo (971) / Panamera Turbo Sport Turismo (971)
Panamera Turbo S E-Hybrid (971) / Panamera Turbo S E-Hybrid Sport Turismo (971)

Country/Market:

USA (C02)

Subject:

PDK control unit

Information:

The PDK control unit on the affected vehicles was programmed using an outdated software
version.
To ensure that the PDK control unit software corresponds to the latest version, the software for the PDK
control unit must be updated.

Remedial
Action:

Re-program the PDK control unit using the PIWIS Tester with test software version 39.700.030 (or
higher) installed.
Information
When the PDK control unit is programmed, the DME control unit is also re-programmed automatically.
Then, both control units are coded automatically.
The total time required for programming and coding both control units is approx. 15 minutes.

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Information
During control unit programming, the old adaptation values of the PDK transmission are deleted.
As a result, there is a possibility that after programming the PDK control unit, the gearshift behavior of
the PDK transmission will initially be different to what the customer was used to before the measure was
carried out.
Please inform the customer about this if necessary and also point out the following:

Affected
Vehicles:

•

The transmission adapts to the customer's driving style after approx. 100 to 150 km (60 to 100
mls), depending on the driving style (sporty or moderate)

•

The adaptation can be performed continuously or in stages

•

Hard gear changes or jerking of the transmission can sometimes occur during the adaptation phase

Only for vehicles assigned to the campaign (see also PIWIS Vehicle Information). This campaign affects
21 vehicles.

Required tools
Tools:

•
•

9900 - PIWIS Tester 3 with PIWIS Tester software version 39.700.030 (or higher) installed
Battery charger with a current rating of at least 90 A, e.g. VAS 5908 Battery charger 90A

Preparatory work
NOTICE
Fault entry in the fault memory and control unit programming aborted due to low-voltage.
•

Increased current draw during diagnosis or control unit programming can cause a drop in voltage, which
can result in one or more fault entries and the abnormal termination of the programming process.



Before starting control unit programming, connect a suitable battery charger with a current rating of at
least 90 A to the vehicle.
NOTICE

Control unit programming will be aborted if the WLAN connection is unstable.
•

An unstable WiFi connection can interrupt communication between the PIWIS Tester and the vehicle
communication module (VCI). As a result, control unit programming may be aborted.



During control unit programming, always connect the PIWIS Tester to the vehicle communication module
(VCI) via the USB cable.
NOTICE

Control unit programming will be aborted if the driver's key is not recognized
•

If the driver's key is not recognized in the vehicle, programming cannot be started or will be interrupted.

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Place the driver's key with the back facing down into the front left storage compartment in the center
console to guarantee a continuous radio link between the vehicle and the driver's key.
NOTICE

Use of a PIWIS Tester software version that is older than the prescribed version
•

Measure is ineffective



Always use the prescribed version or a higher version of the PIWIS Tester software for control unit
programming and coding.

Information
The procedure described here is based on the PIWIS Tester 3 software version 39.700.030.
The PIWIS Tester instructions take precedence and in the event of a discrepancy, these are the
instructions that must be followed.
A discrepancy may arise with later software versions for example.
Work Procedure: 1

Connect a battery charger with a current rating of
at least 90 A, e.g. VAS 5908 Battery charger
90A, to the jump-start terminals in the engine
compartment and switch it on  Jump-start
terminals.

Jump-start terminals
2

Place the driver's key with the back facing down in the
front left storage compartment in the center console
 Driver's key in storage compartment. This will
guarantee an uninterrupted radio link between the
vehicle and the driver's key.

3

Connect the PIWIS Tester to the vehicle communication module (VCI) via the USB cable. Then connect
the communication module to the vehicle and switch
on the PIWIS Tester.

Driver's key in storage compartment

4

Switch on the ignition.

5

On the PIWIS Tester start screen, call up the 'Diagnostics' menu. The vehicle type is then read out,
the diagnostic application is started and the control unit selection screen is populated.

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Re-programming PDK control unit
WARNING
Electrically moved side windows and rear spoiler
•

Danger of limbs being trapped or severed

•

Risk of damage to components



Do not reach into the danger area.



Keep third parties away from the danger area.



Do not move components or tools into the danger area.



Retract roll-up sun blinds on the rear side windows before starting programming or coding.

Work Procedure: 1

Re-program PDK control unit.
The basic procedure for control unit programming is described in the Workshop Manual 
Workshop Manual '9X00IN Basic instructions and procedure for control unit programming using the
PIWIS Tester'.
For specific information on control unit programming during this campaign, see table
below.
Information
Start control unit programming using the "Automatic programming" function of the PDK control unit.
The PDK control unit and also the DME control unit will be re-programmed and coded automatically one after the other during the programming sequence. The total time required for
programming and coding both control units is approx. 15 minutes.
Required PIWIS Tester software version:

39.700.030 (or higher)

Type of control unit programming:

Control unit programming using the 'Automatic
programming' function for the PDK control unit:
'Transmission electronics (PDK II)' control unit
– 'Coding/programming' menu – 'Automatic
programming' function.

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Read and follow the information and instructions
on the PIWIS Tester during the guided
programming sequence.
During the programming sequence, the DME
control unit is re-programmed first, then the PDK
control unit is re-programmed.

Programming sequence:

Both control units are then re-codedautomatically.
Do not interrupt programming and coding.
Once the control units have been programmed and
coded, you will be prompted to switch the ignition off
and then back on again after a certain waiting time.
Backup documentation of the new software versions