Panamera (976)

Technical Information

2025

ENU

WSF5

2

WSF5 – Re-Program DME 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 2024 up to 2025

Model Line:

Panamera (YAA / YAB)

Equipment:

V6-Biturbo engine (M-no. D8Y, D8X)

Concerns:

DME control unit

Cause:

Optimized software for the DME control unit is available for the affected vehicles.
The software update improves the robustness of the charge-air temperature diagnosis.

Action:

Re-program the DME control unit using the PIWIS Tester.
Information
The minimum programming / coding requirement is the PIWIS Tester software release 43.400.020 (or
higher).

Affected
Vehicles:

Only vehicles assigned to the campaign (see also PCSS Vehicle Information).

Required tools
Tools:

•
•

P90999 - PIWIS Tester 4
Battery charger with a current rating of at least 90 A and a current- and voltage-controlled charge map
for lithium starter batteries, e.g. VAS 5908 battery charger 90 A. For further information about the
battery chargers to be used, see the corresponding Workshop Manual. ⇒ Workshop Manual '270689
Charge vehicle electrical system battery'

AfterSales

Jun 25, 2025
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2

Panamera (976)
WSF5

ENU

Technical Information

2025

Re-program DME control unit
Work Procedure: 1 Re-program DME 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 the table below.
Required PIWIS Tester software release:

43.400.020 (or higher)

Type of control unit programming:

Control unit programming using the "Automatic
programming" function of the DME control unit:
"DME" control unit – "Coding / programming" menu
– "Automatic programming" function.

Programming sequence:

Read and follow the information and instructions on
the PIWIS Tester during the guided programming
sequence.
During the programming sequence, first the DME
control unit and then the PDK control unit is
re-programmed.
Thereafter, both control units are automatically
re-coded.
Do not interrupt the programming and coding
process.
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 period.
Finally, backup documentation of the new software
versions is performed.

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The programming sequence takes (approx.):

12 minutes

Software release programmed during this
campaign:

Software release: 0001

Software release programmed during this
action:

See section. ⇒ Technical Information '9X00IN
Overview of programmed DME data records'

Work procedure in the event of a termination in the control unit programming:

• Switch the ignition off and switch on again.
• Read out and erase the fault memory ⇒ Workshop
Manual '9X00IN Basic instructions and procedure for
control unit programming using the PIWIS Tester "Rework" section'.
• Repeat control unit programming by restarting
programming.

Procedure if other error messages appear
during the programming sequence:

⇒ Workshop Manual '9X00IN Basic instructions and
procedure for control unit programming using the
PIWIS Tester - chapter on "FSL troubleshooting"'.

AfterSales

Panamera (976)

Technical Information

2025

ENU

WSF5

2

2

Read out all fault memories, process and delete existing faults if necessary.

3

Exit the diagnostic application. Switch off the ignition. Disconnect P90999 - PIWIS Tester 4 from the
vehicle.

4
5

Switch off and disconnect the battery charger.

⇒ Workshop Manual '270689 Charge vehicle electrical system battery'
Attach Recall Proof of Completion label to the front lid (California Porsche Centers only).
Instructions for attaching labels
•
•
•
•
5.1

Surfaces on which you intend to attach the label must be clean, dry and free from grease and oil
residues.
Before attaching the label, clean the surfaces using a suitable cleaning agent and a clean,
grease-free and lint-free cloth.
This label must not be affixed over existing label.
Attach label only at the specified positions.
Fill out the Recall Proof of Completion label

⇒ Recall Proof of Completion Label fully and

correctly. This includes the recall code “WSF5”,
your Porsche Center code and the repair date.
5.2

6

Clean the surface in the lower area on the front
lid at the left-hand side in direction of travel
at which the Recall Proof of Completion label
Þ Proof of Completion
must be attached ⇒
Label: specified position (Exemplary illustration) -arrow- using a suitable cleaning agent
and a clean, grease-free and lint-free cloth.

5.3

Affix Recall Proof of Completion label in the
lower area of the front lid at the lefthand side
in direction of travel ⇒ Proof of Completion
Label: specified position (Exemplary illustration) -arrow-.

5.4

Close front lid.

Recall Proof of Completion Label

Enter the campaign in the Warranty and Maintenance
Logbook.

Proof of Completion Label: specified
position (Exemplary illustration)

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Panamera (976)
WSF5

ENU

Technical Information

2025

Warranty processing
Information
The stated labor time was determined specifically for carrying out this campaign and includes all necessary
preliminary and subsequent rework. The labor time may differ from the labor times published in the Labor
Operation List in PCSS.
Scope 1:

Re-program DME control unit
Labor time:
Re-program DME control unit
Includes:
Connect and disconnect battery charger
Connect and disconnect PIWIS Tester
Read out and delete fault memories
Attach Recall Proof of Completion label and provide signed
proof of correction to customer (California Porsche Centers
only)

Labor time: 49 TU

Required parts:
PNA EMI 000 00

Label
– Recall Proof of
Completion

1 ea.

PNA 999 100 235

Certificate
- Recall Proof of
Correction

1 ea.

* California Porsche Centers only:
•
•

For warranty processing, enter the Part No. PNA EMI 000 00 with the designation "label" as a local
part at US$ 0.34 in the warranty claim.
For warranty processing, enter the Part No. PNA 999 100 235 with the designation "certificate" as a
local part at US $ 0.01 in the warranty claim.

⇒ Damage number WSF5 066 000 1

Jun 25, 2025
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AfterSales

Panamera (976)

Technical Information

2025

ENU

WSF5

2

Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training courses. They are
written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special tools may be necessary in
order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the safe operation of your vehicle, and
may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and safely. Part numbers listed in these bulletins
are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a discrepancy, the work procedures in the PIWIS Tester
are the ones that must be followed.

© 2025 Porsche Cars North America, Inc.

AfterSales

Jun 25, 2025
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