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]
Change
Overview:

2

Version

Date

Change

0

03/17/2025

•

First publication

1

04/11/2025

•
•

Update of Parts Info
Update of Work Procedure

Model Year:

As of 2025 up to 2026

Vehicle Type:

911 Carrera GTS (992)

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

Apr 11, 2025
Page 1 of 9

2

Service
WSB3

ENU

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:

Apr 11, 2025
Page 2 of 9

Part No.

Designation
– Location of use

Quantity

992971764D

⇒ Potential distributor
– High-voltage system

1 piece(s)

AfterSales

Service

Technical Information

2025

ENU

WSB3

2

or
992971764C

Material:

⇒ Potential distributor
– Vehicles with Porsche Dynamic Chassis Control
(PDCC) (M-no. 1P7)

1 piece(s)

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 liter / 16.9 fl
ozs 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

Deactivate high-voltage system.

⇒ Workshop Manual '277583A3 Deactivating and activating high-voltage system'

AfterSales

Apr 11, 2025
Page 3 of 9

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Service
WSB3

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2
3
4

Technical Information

2025

Remove air guide.

⇒ Workshop Manual '243619A1 Removing and installing air guide'
Disconnect the vehicle electrical system battery.

⇒ Workshop Manual '978511A1 Loosening and fastening ground strap for battery'
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

–
–
–
–

Apr 11, 2025
Page 4 of 9

High-voltage line
Union nut
Braided shielding
Seal

Insulation

AfterSales

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