Service

Technical Information

2025

ENU

WSB3

WSB3 - Check High-Voltage Line on the High-Voltage Distributor and Replace High-Voltage
Distributor if necessary (Workshop Campaign)

2

Vehicle Type:

911 Carrera GTS (992)

Model Year:

As of 2025 up to 2026

Concerns:

High-voltage distributor

Cause:

In rare cases, there is the possibility that the line insulation of the high-voltage distributor is not properly
installed on the affected vehicles.
If this is the case, liquid could penetrate into the high-voltage distributor and consequently lead to a short
circuit. At the same time the engine power is reduced and a red warning message "Stop vehicle safely" is
displayed on the instrument cluster

Action:

Review high-voltage line on the high-voltage distributor and replace high-voltage distributor if necessary.

Affected
Vehicles:

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

AfterSales

Mar 17, 2025
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2

Service
WSB3

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Technical Information

2025

Installation
Position:

1
2

Installation position
– High-voltage distributor
– High-voltage line (from high-voltage distributor to voltage converter)

Required parts and materials as needed
Information
No parts are required for checking the high-voltage line on the high-pressure distributor.
The forecast failure rate is only 3%.
Please, therefore, order the required parts for replacing the high-voltage distributor only if necessary.
Parts Info:

Mar 17, 2025
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Part No.

Designation
– Location of use

Quantity

992971764D

⇒ Potential distributor
– High-voltage system

1 piece(s)

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Service

Technical Information
Material:

2025

ENU

WSB3

2

Required material (usually already available at the Porsche Center)
Part No.

Designation
– Location of use

Quantity

00004330516

⇒ Coolant additive, 20-liter/ 5.28 gal container
– Cooling system

As required
(approx. 0.5 litres per
vehicle)

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
Battery, vehicle electrical system charging'VAS 6883A - insulated tool set
VAS 6558A/45 - High-voltage measurement adapter
VAS 6558/9-6A - High-voltage test adapter
VAS 6410 - Contact surface cleaning set
T40262 - Locking cap

Additionally required tools only if high-voltage distribution boards must be replaced:
•
•
•
•
•
•
•
•
•

VAS 6856 - Spring band clamp pliers
VAS 6890 - Spring band clamp pliers
VAS 531 011 - Cooling system service equipment
3093 - Hose clamp
VAS 6675A - Funnel
Wheel mounting trolley, e.g. VAS 6266A - wheel mounting trolley
Torque wrench, 2-10 Nm (1.5-7.5 ftlb.), e.g., V.A.G 1783 - torque wrench, 2-10 Nm (1.5-7.5 ftlb.)
Torque wrench, 6-50 Nm (4.5-37 ftlb.), e.g. V.A.G 1331A - torque wrench, 6-50 Nm (4.5-37 ftlb.)
Torque wrench, 40-200 Nm (30-148 ftlb.), e.g., V.A.G 1332A - Torque wrench, 40-200 Nm (30-148
ftlb.)

Checking high-voltage line on the high-voltage distributor and replacing high-voltage distributor if necessary
Work Procedure: 1
2

Deactivate high-voltage system.

⇒ Workshop Manual '277583A3 Deactivating and activating high-voltage system'
Remove air guide.

⇒ Workshop Manual '243619A1 Removing and installing air guide'

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WSB3

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3

Technical Information

2025

Þ
Check the insulation of the high-voltage line ⇒
High-voltage line on the high-voltage distributor -1- on
Þ High-voltage line on the
the high-voltage distributor ⇒
high-voltage distributor -2- is installed correctly.
To do this, inspect the high-voltage line more closely
Þ High-voltage line on the high-voltage distributor -1⇒
Þ High-voltage line on the high-voltage distributor
at ⇒
-Arrow- the output of the high-voltage distributor.

High-voltage line on the
high-voltage distributor

1
2
3
4

–
–
–
–

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High-voltage line
Union nut
Braided shielding
Seal

Insulation

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Service

Technical Information

2025
Assessment

( )

✗)
(✗

ENU

WSB3

2

Action

The insulation remains complete in connection with the
high-voltage distributor.
The braided shielding under the insulation must not be
seen.

Slipped insulation of the
high-voltage line can only be
excluded after another test.

Þ Braided shielding under insuThe braided shielding ⇒
Þ Braided shielding
lation -1- under the insulation ⇒
under insulation -2- is visible.

The high-voltage line insulation is
faulty.

Continue with Step ⇒ 4.

Replace high-voltage distributor.
For work procedure, see: ⇒
Workshop Manual '279819
Removing and installing
high-voltage distributor'
Invoicing based on equipment
scope 2 or scope 4.

Braided shielding under insulation
4

Þ
Unlock and disconnect electrical plug connection ⇒
Electric plug connection on voltage transformer -1- on
Þ Electric plug connection on
USB voltage converter⇒
voltage transformer -2-.

5

Checking the length of the high-voltage line on the
high-voltage distributor.
To do this, measure the length of the high-voltage
Þ
line using a measuring tape between the union nut ⇒
Measurement of the high-voltage line -1- and the plug
Þ Measurement of the high-voltage line -2-.
housing⇒
Electric plug connection on
voltage transformer

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Technical Information

2025

Measurement of the high-voltage line
Assessment
( )

The length of the high-voltage line is 135 mm or less.

Action
The insulation of the high-voltage
line is OK.
Continue with Step ⇒ 6.

✗)
(✗

The length of the high-voltage line is greater than 135
mm.

The high-voltage line insulation is
faulty.
Replace high-voltage distributor.
For work procedure, see: ⇒
Workshop Manual '279819
Removing and installing
high-voltage distributor'
Invoicing based on equipment
scope 2 or scope 4.

6
7
8
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Install the air guide.

⇒ Workshop Manual '243619A1 Removing and installing air guide'
Activate the high-voltage system.

⇒ Workshop Manual '277583A3 Deactivating and activating high-voltage system'
Enter the campaign in the Warranty and Maintenance Logbook.

AfterSales

Service

Technical Information

2025

ENU

WSB3

2

Warranty processing
Information
The specified labor times were determined specifically for carrying out this campaign and include all required
preliminary work and rework.
The labor times can differ from the labor times published in the Labor Operation List in PCSS.
Scope 1:

Checking high-voltage line on the high-voltage distributor
•
•
•

Visual inspection OK
Length measurement OK
Only relevant for vehicles without Aerokit
Labor time:
Checking high-voltage line on the high-voltage distributor
Includes:
Deactivating and activating high-voltage system
Removing and installing air guide
Checking high-voltage line
Measuring high-voltage line

Labor time: 200 TU

Þ Damage code WSB2 066 000 1
⇒
Scope 2:

Checking high-voltage line and replacing high-voltage distributor
•
•
•
•

Visual inspection
Length measurement
Replacing high-voltage distributor
Only relevant for vehicles without Aerokit
Labor time:
Checking high-voltage line and replacing high-voltage distributor
Includes:
Deactivating and activating high-voltage system
Removing and installing air guide
Checking high-voltage line
Measuring high-voltage line

Labor time: 504 TU

Required parts:
Part No.

Designation

Quantity

992971764D

Potential distributor

1 piece(s)

AfterSales

Mar 17, 2025
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2

Service
WSB3

ENU

Technical Information

2025

Required materials (usually already available in the Porsche Center):
00004330516

Coolant additive,
20-liter/ 5.28 gal
container

0.03 piece(s)

Þ Damage code WSB2 066 000 2
⇒
Scope 3:

Checking high-voltage line on the high-voltage distributor
•
•
•

Visual inspection OK
Length measurement OK
Only relevant for vehicles with Aerokit (M-no. VM2 / VM3 / VM9)
Labor time:
Checking high-voltage line on the high-voltage distributor
Includes:
Deactivating and activating high-voltage system
Removing and installing air guide
Checking high-voltage line
Measuring high-voltage line

Labor time: 128 TU

Þ Damage code WSB2 066 000 1
⇒
Scope 4:

Checking high-voltage line and replacing high-voltage distributor
•
•
•
•

Visual inspection
Length measurement
Replacing high-voltage distributor
Only relevant for vehicles with Aerokit (M-no. VM2 / VM3 / VM9)
Labor time:
Checking high-voltage line and replacing high-voltage distributor
Includes:
Deactivating and activating high-voltage system
Removing and installing air guide
Checking high-voltage line
Removing and installing high-voltage distributor
Required parts:
Part No.

Designation

Quantity

992971764D

Potential distributor

1 piece(s)

Required materials (usually already available in the Porsche Center):

Mar 17, 2025
Page 8 of 9

AfterSales

Labor time: 426 TU

Service

Technical Information
00004330516

2025
Coolant additive,
20-liter/ 5.28 gal
container

ENU

WSB3

2

0.03 piece(s)

Þ Damage code WSB2 066 000 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.

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