Service

Technical Information

189/23 ENU

WPR8

1

WPR8 - Checking Crankcase Sensor and Reworking if Necessary (Workshop Campaign)

Vehicle Type:

Cayenne S (9YA)
Cayenne S Coupé (9YB)

Model Year:

2024

Concerns:

Crankcase sensor on cylinder bank 1 and cylinder bank 2

Cause:

On the affected vehicles, there is a possibility that the crankcase sensors were not engaged
correctly during the production run.
Therefore, it cannot be ruled out that damage within the sensor may occur over the vehicle service life
due to the vibration load during vehicle operation. Subsequently, this can result in activation of the Check
Engine light (MIL).

Action:

Check crankcase sensor and rework if necessary.

Affected
Vehicles:

Only vehicles assigned to the campaign (see also PCSS Vehicle Information).

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Jan 19, 2024
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Service

Technical Information

ENU 189/23

WPR8

Installation
Position:

Installation position for crankcase sensors
1

– Crankcase sensor

Required parts
Information
No parts are required for testing and reworking the crankcase sensors.
The part numbers of the required parts for the respective vehicle can be seen in the assigned scope.
For an overview of the campaign scopes, see:  Technical Information 'Warranty processing'

Required tool
Tools:

•
•
•
•

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Plastic wedge
Torque wrench, 6–50 Nm (4.5–37 ftlb.), e.g., V.A.G 1331A - torque wrench, 6–50 Nm
(4.5–37 ftlb.)
Battery charger with a current rating of at least 90 A, e.g. VAS 5908 - battery charger 90 A
P90999 - PIWIS Tester 4

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Service

Technical Information

189/23 ENU

WPR8

1

Checking crankcase sensor on cylinder bank 1 and cylinder bank 2
Work Procedure: 1

Check if the Check Engine light (MIL) has been activated in the instrument cluster.
Assessment

Action

( )

Check Engine light (MIL) is not
activated.

Continue with Action Step 2 .

(✗)

Check Engine light (MIL) is activated.

Fault memory entry for both crankcase sensors
present:
Replace both crankcase sensors and oil
separator.
Continue with  Technical Information
'Replacing crankcase sensor and oil separator'

Read out the fault memory and check
for the following fault memory entries:
•

“P051C sensor 1 for
crankcase pressure short
circuit to ground” (cylinder
bank 1).

and/or
•

“P2C34 sensor 2 for
crankcase pressure short
circuit to ground” (cylinder
bank 2).

Fault memory entry for a crankcase sensor
present:
Replace the corresponding crankcase sensor
and oil separator.
 Technical Information 'Replacing crankcase
sensor and oil separator'

2

Remove air cleaner housing.  Workshop Manual '242519 Removing and installing air filter housing
- T9I, TB5'

3

Check crankcase sensor  Checking crankcase sensor (shown on cylinder bank 2) -1- on cylinder
bank 1 and cylinder bank 2.

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Service
WPR8

Technical Information

ENU 189/23

Checking crankcase sensor (shown on cylinder bank 2)
Assessment
( )

(✗)

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Crankcase sensor  Checking
crankcase sensor (shown on cylinder
bank 2) -1- on cylinder bank 1 and/or
cylinder bank 2 is correctly engaged
under both locking lugs  Checking
crankcase sensor (shown on cylinder
bank 2) -2-.
Crankcase sensor  Checking
crankcase sensor (shown on cylinder
bank 2) -1- on cylinder bank 1 and/or
cylinder bank 2 is not engaged
correctly under locking lugs 
Checking crankcase sensor (shown
on cylinder bank 2) -2-.

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Action
– End of action –
Continue with Step 5  .
[Scope 1]

Rework crankcase sensor  Checking
crankcase sensor (shown on cylinder bank 2) -1of the corresponding cylinder bank.
Continue with Step 4  .
[Scope 2]

Service

Technical Information
4

189/23 ENU

WPR8

1

Rework crankcase sensor  Reworking crankcase
sensor (shown on cylinder bank 2) -1-.
4.1

Lock crankcase sensor  Reworking
crankcase sensor (shown on cylinder bank 2)
-1- in  Reworking crankcase sensor (shown
on cylinder bank 2) -Arrow direction- under
the corresponding locking lug  Reworking
crankcase sensor (shown on cylinder bank 2)
-2-.

4.2

Visually check whether the crankcase sensor
is clipped  Reworking crankcase sensor
(shown on cylinder bank 2) -1- correctly
under both locking lugs  Reworking
crankcase sensor (shown on cylinder bank 2)
-2-.

5

Install air cleaner housing.  Workshop Manual
'242519 Removing and installing air filter housing T9I, TB5'

6

Enter the campaign in the Warranty and Maintenance logbook.

Reworking crankcase sensor
(shown on cylinder bank 2)

Replacing crankcase sensor and oil separator
Work Procedure: 1

Remove oil separator from the corresponding cylinder bank.  Workshop Manual '105519
Removing and installing oil separator - TB5'

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Technical Information

ENU 189/23

WPR8
2

Lock the new crankcase sensor  -1- in  -Arrow
direction- locking lugs on  -2- the new oil
separator.

3

Install new oil separator of the corresponding
cylinder bank.  Workshop Manual '105519
Removing and installing oil separator - TB5'

4

Read out and delete all control unit fault memories.

5

4.1

Press •F7“ in the control unit selection
screen (‘Overview’ menu) to call up the Additional menu.

4.2

Select the function “Read all fault memories
and erase if required” and press •F12“
(‘Next’) to confirm.

Enter the campaign in the Warranty and Maintenance
logbook.

Engaging crankcase sensor

Warranty processing
Information
The specified labor times were determined specifically for carrying out this campaign and include
all necessary preliminary and subsequent rework. The labor times may differ from the Labor times
published in the Labor Operation List in PCSS.
Scope 1:

Checking crankcase sensor
Labor time:
Checking crankcase sensor
Includes:
Removing and installing air cleaner housing

Labor time: 38 TU

 Damage number WPR8 066 000 1
Scope 2:

Checking and reworking crankcase sensor
Labor time:
Checking and reworking crankcase sensor
Includes:
Checking fault memory
Removing and installing air cleaner housing
 Damage number WPR8 066 000 1

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Labor time: 61 TU

Service

Technical Information
Scope 3:

189/23 ENU

WPR8

1

Replacing crankcase sensor and oil separator on one side
Labor time:
Replacing crankcase sensor and oil separator on one side
Includes:
Removing and installing air cleaner housing
Removing and installing air cleaner cartridge
Removing and installing engine cover

Labor time: 80 TU

Required parts:
Part No.

Designation
– Location

Quantity

PAB906052

Sensor
– Oil separator

1/2
piece(s)

PAB103464A

Oil separator
– Cylinder bank 1

1 piece

Oil separator
– Cylinder bank 2

1 piece

or
PAB103495D

 Damage number WPR8 066 000 2
Scope 4:

Replacing crankcase sensor and oil separator on both sides
Labor time:
Replacing crankcase sensor and oil separator on both sides
Includes:
Removing and installing air cleaner housing
Removing and installing air cleaner cartridge
Removing and installing engine cover

Labor time: 103 TU

Required parts:
Part No.

Designation
– Location

Quantity

PAB906052

Sensor

2 pieces

PAB103464A

Oil separator
– Cylinder bank 1

1 piece

PAB103495D

Oil separator
– Cylinder bank 2

1 piece

 Damage number WPR8 066 000 2

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Service
WPR8

Technical Information

ENU 189/23

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 19, 2024
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