Service

Technical Information

188/23 ENU

3988

3

Leaks on the Flange Shaft of the Front Right All-Wheel Drive to the Front-Axle Final
Drive(188/23)
Vehicle Type:

Panamera 4 (971) / Panamera 4S (971) / Panamera GTS (971) / Panamera Turbo S (971)

Model Year:

As of 2022 up to 2023

Concerns:

Right drive shaft

Concerns:

Customers complain about oil leaks in the front area of the vehicle. The leakage can be clearly
determined on the sealing ring for the flange shaft on the right of the final drive of the all-wheel
drive.

Cause:

Damage to the right sealing ring for flange shaft on all-wheel drive may occur due to faulty coating of the
transmission-side pin of the right front drive shaft.

Action:

In the event of a leak on the sealing ring for flange shaft all wheel drive on the front right, check the flange
shaft and replace it if necessary.
Information
This default value only applies to vehicles from the production period specified below.

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Jan 5, 2024
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3

Service
3988

Technical Information

ENU 188/23

Installation
Position:

1
2

Installation position for right drive shaft and sealing ring for right flange shaft all-wheel drive
– Right drive shaft
– Sealing ring for all-wheel drive flange shaft on the right

Required parts
Parts Info:

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Part No.

Designation
– Location

Number

9A740939910

 Shaft seal
– All-wheel drive

1 piece

971407271x*

 Drive shaft
– front right

1 piece

N 10628301

 Hexagon-head bolt, M12 x 90
– Spring strut to lower trailing arm

1 piece

PAF104029

 Hexagon collar nut, M12 x 1.5
– Spring strut to lower trailing arm

1 piece

AfterSales

Service

Technical Information

188/23 ENU

3988

N 10261311

 M10 hexagon nut
– Spring strut to body

3 pieces

WHT005819

 Hexagon collar nut, self-locking M12 x 1.5
– Upper trailing arm on wheel bearing housing

1 piece

PAF005633

 Twelve point nut, self-locking M14 x 1.5
– Lower trailing arm on wheel bearing housing

1 piece

WHT007021

 Hexagon nut, self-locking with washer M22 x 1.5
– Drive shaft to wheel hub

1 piece

9A700499500

 Hexagon nut, M12 x 1.5
– Tie-rod ball to wheel bearing housing

1 piece

N 10456004

 Internal hexagon round countersunk screw,
self-locking, M6 x 12
– Brake disc to wheel hub

2 pieces

N 10272302

 Hexagon collar nut, self-locking M10
– Connecting link on wheel bearing housing

1 piece

3

*Determine the variant of the right drive shaft required for the respective vehicle using the vehicle identification number in the Porsche Spare Parts Catalogue (PET2).
Additionally required parts for vehicles with the following equipment: Load group 1 FA/1 RA
(M-No. 0J2)
PAF004571

 Cheese head bolt with multiple-tooth head,
M14 x 1.5 x 115
– Brake calliper to wheel bearing housing

2 pieces

Additionally required parts for vehicles with the following equipment: Load group 1VA/2
HA (M-No. 0J3), load group 2VA/2 HA (M-No. 0J5), front disc brake PCCB (M-No. 1LQ) and
front disc brake PCCB, high-gloss Black (M-No. 1LX)
PAF004572

 Cheese head bolt with multiple-tooth head,
M14 x 1.5 x 135
– Brake calliper to wheel bearing housing

2 pieces

Additional required parts for vehicles with the following equipment: PDCC/eAWS (M-No.
1P7)
N 10702302

 Hexagon-head screw, M12 x 1.5 x 50
– Anti-roll bar to connecting link (PDCC)

AfterSales

1 piece

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Service

Technical Information

ENU 188/23

3988

Additionally required parts for vehicles with the following equipment: Conventional anti-roll
bar
N 10793603

 Hexagon-head bolt M12 x 1.5 x 60
– Anti-roll bar to connecting link (conventional)

1 piece

N 0150818

 Hexagon collar nut, M12 x 1.5
– Anti-roll bar to connecting link (conventional)

1 piece

Required tools
Tools:

•
•
•
•
•
•
•
•
•
•
•
•
•
•
•

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, 20-100 Nm (15-74 ftlb.), e.g., VAS 5820 - torque wrench, 20-100 Nm
(15-74 ftlb.)
Torque wrench, 40-200 Nm (30-148 ftlb.), e.g., V.A.G 1332A - torque wrench, 40-200 Nm
(30-148 ftlb.)
Torque wrench to at least 600 Nm (442.5 ftlb), e.g., V.A.G 1601 - torque wrench 15-800 Nm
(11-590 ftlb.)
Transmission and gearbox jack, e.g. VAS 6931 - Transmission and gearbox jack
T20143 - Puller hook
9941 - Pressure piece
9811 - Pressure piece
Puller set
T10187 - Press-out tool
VW552 - Spring compressor
9229/1 - Puller hook
T10439 - Assembly pin
9472 - Brake piston resetting fixture
VAS 6965 Puller set

Checking flange shaft for front right all-wheel drive
Work Procedure: 1

Remove front right drive shaft.
For procedure, see:  Workshop Manual 'Removing and installing front drive shaft'

2

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Check flange for final drive on the right front drive shaft.

AfterSales

Service

Technical Information

188/23 ENU

3988

3

Coating / grinding traces Flange for final drive on the right front drive shaft
Assessment
( )

(✗)

Action

A continuous shiny metallic or uniform
surface can be seen on the flange for
final drive and the production period of
the vehicle is between 30/05/2022 –
24/08/2023.

Replace sealing ring for all-wheel drive
flange shaft on the right.

A greyish, matt, possibly speckled
surface with shiny running channel
of the sealing ring for flange shaft,
all-wheel drive on the right, can be
seen on the flange for final drive and
the production period of the vehicle is
between 30/05/2022 – 24/08/2023.

Replace sealing ring for flange shaft on right
all-wheel drive and right drive shaft.

AfterSales

 Workshop Manual '395955 Replacing
sealing ring for all-wheel drive flange shaft'

For procedure, see:
 Workshop Manual '395955 Replacing
sealing ring for all-wheel drive flange shaft'
 Workshop Manual '404119 Removing
and installing front drive shaft'

Jan 5, 2024
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3

Service

Technical Information

ENU 188/23

3988

Labor position and PCSS encryption
Labor position:
I No.

APOS

Labor operation

39595510

Replacing sealing ring for all-wheel drive flange
shaft on the right
PCSS encryption:

Location (FES5)

4041R

Drive shaft, front right,

Damage type (SA4)

1054

mechanical processing incomplete

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.

© 2024 Porsche Cars North America, Inc.

Jan 5, 2024
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AfterSales