Service

Technical Information

180/18 ENU

1582

1

Complaint - Cylinder Head Cover Near the Injector Holes Leaking: Subsequent Work on Cylinder Head
(180/18)
Change overview:
Version

Date

Change

0

12/02/2019

First publication

1

01/08/2021

Checking for leaks at the solenoid hydraulic valve for valve lift control
is no longer required

2

01/16/2021

Work procedure under Step 2.1 adapted.

3

02/21/2023

Order types added

4

07/13/2023

Information added: "Specify the cylinder head cover seal as the
component causing the damage"

5

05/21/2025

Order types added

6

06/27/2025

Information added: “create informative photo documentation” under
Work Procedure steps 2.4 and 2.6

Vehicle Type:

Cayenne (9YA/9YB)/Cayenne E-Hybrid (9YA/9YB)/Cayenne S (9YA/9YB)/Cayenne S E-Hybrid
(9YA/9YB)

Model Year:

As of 2018

Equipment:

•
•

Concerns:

Cylinder head cover

Cause:

Complaint about injector hole leaks

2.9-liter twin-turbo V6 engine (M-No. TV8)
3.0-liter turbo V6 engine (M-No. T9I)

Information
•

Due to a batch error in the casting procedure there may be cast residue in the cylinder head cover
sealing groove.

•

This cast residue may be the reason for leaks in the injector holes.

In the event of a complaint, the corresponding position of the leak(s) must be located before doing any other
work and then rectified on a case-by-case basis, see section "Work procedure".

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Jun 27, 2025
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Service

Technical Information

ENU 180/18

1582

Work Procedure: –

Cylinder head cover component overview:

Cylinder head cover component overview
1
– Insulation on top of cylinder head
cover
2
– Insulation on bottom of cylinder
head cover
3
– Solenoid hydraulic valve for valve
lift adjustment
4
– Cylinder head cover
Information
•

Other electric plug connections and line guides must be disconnected to remove the cylinder head cover
sound insulation.

1

Identify the cause of the leak(s):
1.1

Remove air filter housing, see ⇒ Workshop Manual '242519 Removing and installing air filter
housing'.

1.2

Visually check whether both cylinder head covers have leaks, then continue on the relevant
cylinder head with ⇒ 1.3.

1.3

Remove insulation on top of the cylinder head cover.
Information
If the insulation on the top of the cylinder head cover is already soaked with oil, it must be
replaced.

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Technical Information
2

180/18 ENU

1582

1

Subsequent work on cylinder head:
2.1

Remove fuel collection pipe and injection valves on the affected cylinder head, see ⇒ Workshop
Manual '243019 Removing and installing fuel collection pipe (V6 Turbo)' and ⇒ Workshop
Manual '244019 Removing and installing injection valve (injector)'.

2.2

Remove insulation on bottom of the cylinder head cover.

2.3

Identify the affected cylinder(s) by a visual inspection:
2.3.1

Oil must have collected in the vicinity of the injector of the affected cylinder and the
insulation on the bottom of the cylinder head cover should be fully soaked.

⇒ Fault type 2: Cylinder head cover
leaking

2.3.2

2.4

If all affected cylinders are identified,
make a note of them and continue
with ⇒ 2.4.

To remove cylinder head cover and dispose of
old seal, see ⇒ Workshop Manual '158219
Removing and installing cylinder head cover
(V6 turbo)'.
Information
Fault type 2: Cylinder head cover leaking
Create informative photo documentation of the
damaged seal and attach it to the process in PCSS.

2.5

Clean cylinder head cover.

2.6

Þ Cylinder head cover sealing groove -1-) of the cylinder head cover
Check the sealing groove (⇒
visually. Be particularly meticulous when doing this especially in the vicinity of the affected
cylinder.
Information
Create informative photo documentation of the seal groove in the area of the affected
cylinder, before rework and attach it to the process in PCSS.

2.7

Þ Cylinder head cover sealing groove -2-) using a small
Carefully remove any cast residue (⇒
flat screwdriver, ensuring that the sealing groove is not damaged. There must be no more cast
Þ Cylinder head cover sealing groove -3-).
residue in the sealing groove after machining (⇒

2.8

To install a new seal on the cylinder head cover, see ⇒ Workshop Manual '158219 Removing
and installing cylinder head cover (V6 turbo)'.

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Technical Information

ENU 180/18

1582

2.9

Replace and install the insulation on the bottom of the cylinder head cover.

2.10

Install fuel collection pipe, see ⇒ Workshop Manual '243019 Removing and installing fuel
collection pipe (V6 Turbo)'.

Cylinder head cover sealing groove
3

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Subsequent work:
3.1

Install insulation on top of the cylinder head cover.

3.2

Install air filter housing, see ⇒ Workshop Manual '242519 Removing and installing air filter
housing'.

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Service

Technical Information

180/18 ENU

1582

1

Labor position and PCSS encryption
Labor position:
APOS

Labor operation

I No.

15824913

Reworking cylinder head cover cylinders 1–3

15824914

Reworking cylinder head cover cylinders 4–6

15824915

Reworking cylinder head cover cylinders 1–3

15824916

Reworking cylinder head cover cylinders 4–6

15824923

Reworking cylinder head cover cylinders 1–3

15824924

Reworking cylinder head cover cylinders 4–6
PCSS encryption:

Location (FES5)

15800

Cylinder head cover seal

Damage type (SA4)

5041

Oil/grease leak

Information
In addition to PCSS encryption, specify the seal of the cylinder head cover as the component causing the
damage.

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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