Service

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Oil Leakage in the Area of the Upper Part of the Oil Pan and Crankcase: Checking Return
Seal on Upper Part of Oil Pan and Replacing if Necessary (91/24)
Vehicle Type:

718 Cayman GTS 4.0 (982) / 718 Boxster GTS 4.0 (982) / Boxster 25 years (982) / 718
Spyder (982) / 718 Cayman GT4 (982)

Model Year:

As of 2020 up to 2024

Equipment:

4.0-liter flat-six naturally aspirated engine

Concerns:

Oil pan return seal

Cause:

Oil traces are detected on the oil pan on the side of the engine transmission flange.
The leak is located in the area of the sealing point between
the upper part of the engine oil pan and crankcase  Oil
leakage area -Circle-, on green return seal  Oil leakage
area -1- in the “window section” of the upper part of the oil
pan.

Oil leakage area
Action:

Check the return seal in the area of the “window section” and replace it with a new component status if
applicable.
Information
Replacing the upper part of the oil pan, including the moulded seal, is not expedient because
this complaint involves a defect in the return seal in the area of the “window section” of the oil pan and not
a defect in the oil pan itself.

Required parts
Parts Info:

Part No.

Designation
– Location

Number

0PB115111C

 Seal, Black
– Return line of upper part of oil pan

2 pieces

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Material:

ENU

Technical Information

91/24

9A700828100

 O-Ring 31.0 x 3.00
– Coolant pipe on controller

2 pieces

PAF013814

 M14 x 18 sealing ring
– Coolant drain plug

2 pieces

PAF008640

 O-Ring 10.00 x 3.5
– Upper part of oil pan

2 pieces

0PB115625A

 Oil pan sealing ring
– Lower part of oil pan

2 pieces

95810380100

 Screw plug on oil pan

1 piece

Required materials (usually already available in the Porsche Center):
Part No.

Designation
– Application point / additional designation

Quantity

00004320593

 Lubricating grease (100 g/ 3.52 oz tube), Klüberplus gel
– O-rings

As required

00004330516

 Coolant (20 l/ 5.28 gal container)
– Cooling system

As required

...

 Engine oil, C40 standard
– EXXON MOBIL 1 ESP X3, 0W-40

As required

Required Tools
Tools:

•
•

•
•
•
•
•
•
•
•
•

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P90999 - PIWIS Tester 4
Battery charger with a current rating of at least 90 A, e.g. VAS 5908 - 90-A battery charger. For
further information about the battery chargers to be used, see the corresponding Workshop Manual.
 Workshop Manual '270689 Charging battery and vehicle electrical system'
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.)
Cooling system service device, e.g., VAS 531 011 - Cooling system service device
Funnel, e.g., VAS 6675A - Funnel
Filling device, e.g., 9696 - Filling device
Vacuum pump, e.g., VAS 6096/2 - Vacuum pump
Spring band clamp pliers, e.g. VAS 6890 - Spring band clamp pliers
Assembly tool, e.g., T10549 - Assembly tool

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Service

Technical Information

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Checking return seal on upper part of oil pan and replacing if necessary
Work Procedure: 1

Remove rear underbody cover.

 Workshop Manual '519419 Removing and installing cover for rear underbody'
Information
Oil leakage must be clearly identifiable and reproducible.
To do this, proceed as follows:
1. Document the original complaint condition with meaningful photos.
2. Attach documentation to PCSS line.
3. Clean the engine and transmission thoroughly.
4. Spray large areas of the engine and transmission with SpotCheck around the suspected leakage
points.
5. If necessary, perform a test drive with the engine oil and coolant having at least reached
operating temperature.
6. Locate the oil leakage.
7. Produce photo documentation of the leakage point located using SpotCheck.
8. Attach documentation to PCSS line.
2

Check the return seal in the area of the “window section” on the upper part of the oil pan.
Assessment

( )

Oil leakage not in the window section or on
the return seal

Action
If the complaint is not rectified by this
technical information, resume troubleshooting.
Install rear underbody cover.
 Workshop Manual '519419 Removing
and installing cover for rear underbody'
End of action.

(✗)
3

Oil leakage in the window section or on the
return seal

Continue with  3.

Replace previous return seals  Affected seals -1 and 2- on the upper part of the oil pan with new,
black return seals with a new component status.
For procedure, see:  Workshop Manual '175019 Removing and installing oil pan (upper part)'

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Information
The previous component status of the return seal in green must no longer be used here.

Affected seals

Labor position and PCSS encryption
Information
If necessary, additionally required working time guideline values for preparatory or follow-up actions need
to be determined using the Porsche Central Service System (PCSS), depending on the equipment of the
vehicle.
Labor position:
APOS

Labor operation

17510190

Checking seal on oil pan

17510191

Checking seal on oil pan

17501976

Removing and installing oil pan (lower part)

17501977

Removing and installing oil pan (upper part)

19381775

Draining and filling coolant

19010750

Bleed the cooling system

17011775

Draining and filling engine oil

I No.

PCSS encryption:
Location (FES5)

17500

Oil pan

Damage type (SA4)

5043

Oil loss

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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.

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