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NHTSA ID Number: 11030905

Manufacturer Communication Number: No. 88-20

TSB/Document Date: 2026-04-07


Summary

Technical information for a Complaint - Oil Leakages on Double-Clutch Transmission (PorscheeBay logo Doppelkupplung (PDK)): Observe Specified Procedure


PAF009267

⇒ Hexagon-head bolt M10 x 40
– Transmission bracket

4 piece(s)

WHT008727

⇒ Cheese head screw M10 x 46.5
– Drive shaft

16 piece(s)

99240735700

⇒ Base plate
– Drive shaft

8 piece(s)

PAF913091

⇒ Hexagon flange bolt (combination)
M16 x 75
– Drive shaft

2 piece(s)

9A700846400

⇒ External hexalobular screw
– Transmission housing

7 piece(s)

Also use for all-wheel drive
PAF911439

⇒ Cheese head bolt with multiple-tooth
head M8 x 16
– Cardan shaft

Labor Position Labor position:
and PCSS
Encryption (30):
APOS

Labor operation

I No.

XXX

Replace double-clutch transmission
PCSS encryption:

Location (FES5)

37370

Transmission housing

Damage type (SA4)

5041

Oil/grease leak

Mar 31, 2026
Page 58 of 63

AfterSales

4 piece(s)

Service

Technical Information

88/20 ENU

3734

3

Leaks in the front side area of the transmission

Front side of transmission
Item

Þ Front

side of
transmission
-25-

Oil leakage
Output flange

Cause
Sealing ring damaged (A)

25A - 25B

Output flange leaking (B)

Cover

Cover damaged

Þ Front

side of
transmission
-26Parts (25A 25B):

Repair measure
Replace sealing ring and output flange, see
⇒ Workshop Manual '398255 Replacing
cardan flange sealing ring'.
Replace cover, see ⇒ Workshop Manual
'374955 Replacing cover'.

Required parts (for cardan flange):
Part No.

Designation
– Location of use

Quantity

0DT341272

⇒ Output flange
Cardan shaft

1 piece(s)

0DT301733

⇒ Shaft seal
– Output flange

1 piece(s)

AfterSales

Mar 31, 2026
Page 59 of 63

3

Service
3734

ENU

Technical Information

88/20

0DT311183

Circlip
– Output flange

1 piece(s)

0DT301289

⇒ Dust boot
– Output flange

1 piece(s)

WHT008727

⇒ Cheese head bolt
– Drive shaft

12 piece(s)

9A7407357

⇒ Base plate
– Drive shaft

6 piece(s)

PAF911439

⇒ Cheese head bolt
– Cardan shaft

4 piece(s)

PAF008673

⇒ Hexagon-head bolt
– Rear-axle carriereBay logo

2 piece(s)

PAF008735

⇒ Hexagon-head bolt
– Rear-axle carriereBay logo

2 piece(s)

WHT007957

⇒ Hexagonal lock nut
– Coupling rod

2 piece(s)

or
9A700781900

⇒ Hexagon nut
– Coupling rod (PDCC)

2 piece(s)

PAF909664

⇒ Hexagon collar nut
– Lower trailing arm

2 piece(s)

PAF008674

⇒ Hexagon flange bolt
– Lower trailing arm

2 piece(s)

WHT008676

⇒ Hexagon-head bolt
– Strut

4 piece(s)

Additionally required parts for vehicles
with lithium-ion battery (M-no. 0K1)
WHT008727

⇒ Cheese head screw M10 x 46.5
– Drive shaft

4 piece(s)

99240735700

⇒ Base plate
– Drive shaft

2 piece(s)

Labor Position Labor position:
and PCSS
Encryption (25A
- 25B):

Mar 31, 2026
Page 60 of 63

AfterSales

Service

Technical Information

88/20 ENU

APOS

Labor operation

39825552

Replace sealing ring for cardan flange

39825590

Replace sealing ring for cardan flange (992 PA)

3734

3

I No.

PCSS encryption:
Location (FES5)

39640

Cardan flange

Damage type (SA4)

5043

Oil loss

Parts (26):

Required parts (for cover):
Part No.

Designation
– Location of use

Quantity

0DT321073

⇒ Cover
– Transmission housing

1 piece(s)

PAF008673

⇒ Hexagon-head bolt
– Rear-axle carriereBay logo

2 piece(s)

PAF008735

⇒ Hexagon-head bolt
– Rear-axle carriereBay logo

2 piece(s)

WHT007957

⇒ Hexagonal lock nut
– Coupling rod

2 piece(s)

or
9A700781900

⇒ Hexagon nut
– Coupling rod (PDCC)

2 piece(s)

PAF909664

⇒ Hexagon collar nut
– Lower trailing arm

2 piece(s)

PAF008674

⇒ Hexagon flange bolt
– Lower trailing arm

2 piece(s)

Also use for all-wheel drive
PAF911439

⇒ Cheese head bolt
– Cardan shaft

4 piece(s)

Labor Position Labor position:
and PCSS
Encryption (26):
APOS

Labor operation

37495552

Replace cover

37495590

Replace cover (992 PA)

I No.

AfterSales

Mar 31, 2026
Page 61 of 63

3

Service
3734

ENU

Technical Information

88/20

PCSS encryption:
Location (FES5)

37490

Cover

Damage type (SA4)

1817

loose

Follow-up actions
Work Procedure: 1

Parts:

Material:

Check and top up ATF; see ⇒ Workshop Manual '370235 Checking and topping up ATF'.

2

Check and top up oil for final drive, see ⇒ Workshop Manual '399035 Checking and topping up oil for
final drive (PDK gear-wheel oil)'.

3

Install rear cover, see ⇒ Workshop Manual '519419 Removing and installing rear cover'.

Part No.

Designation

Quantity

PAF009390

⇒ Screw plug with sealing ring (unless it
has already been replaced)

1 piece(s)

9A700852600

⇒ Screw plug with sealing ring (unless it
has already been replaced)

1 piece(s)

PAF008528

⇒ Screw plug with sealing ring (unless it
has already been replaced)

1 piece(s)

Required materials (usually already available in the PorscheeBay logo Center):
Part No.
00004321044

Designation
⇒ Transmission oil (unless it has already
been checked and topped up)

1) approx. 0.1 liter / 3.38 fl oz required per vehicle.

Labor Position
and PCSS
Encryption:

Labor position:

APOS

Labor operation

37340100

Check the double-clutch transmission

37340140

Check the double-clutch transmission (992 PA
Coupe)

37340141

Check double-clutch transmission (992 PA Cabrio /
Targa)

Mar 31, 2026
Page 62 of 63

I No.

AfterSales

Quantity
20-liter container 1)
5.28 gal

Service

Technical Information
APOS

Labor operation

37023550

Check and top up ATF

39903550

Check and top up oil for final drive

88/20 ENU

3734

3

I No.

PCSS encryption:
Location (FES5)

37340

Double—clutch transmission

Damage type (SA4)

1611

without function

Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended PorscheeBay logo service training courses. They are
written to inform those technicians of conditions that may occur on some PorscheeBay logo 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 PorscheeBay logo 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.

© 2026 Porsche Cars North America, Inc.

AfterSales

Mar 31, 2026
Page 63 of 63

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TSB/Document ID: No. 88-20

Replacement Service Bulletin Number:

MFR Communication Date: 2026-04-01

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: POWER TRAIN

MFR Component System:

MFR Component Subsystem:


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