No. 181-20

Service
Technical Information
181/20 ENU
WLL2
2
WLL2 - Reworking Catalytic Converter Mounting (Workshop Campaign)
Vehicle Type:
Cayenne Turbo (9YA) / Cayenne Turbo Coupé (9YB)
Model Year:
2020
Concerns:
Catalytic converter mounting
Information:
There is a possibility that the screw contact surface on the transmission housing for the
mounting of the catalytic converter was not modified according to specifications on the
affected vehicles.
This results in is a misalignment or tension between the holder of the catalytic converter and the screw
contact surface on the transmission housing. This can cause loosening of the threaded joint over the
service life of the vehicle.
Action
Required:
Rework catalytic converter mounting.
Affected
Vehicles:
Only vehicles assigned to the campaign (see also PCSS Vehicle Information). This campaign affects
19 vehicles.
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Installation
Position:
1
Installation position of catalytic converter mounting
– Mounting for catalytic converter at the left and right (rework)
Parts required
Parts Info:
Part No.
Designation
– Use
Qty.
PAF01167026
 Washer 8.4 x 24 x 2
2 ea.
PAF901076
 Washer 8.2 x 18 x 2
2 ea.
Required tools
Tools:
•
•
•
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Torque wrench, 2–10 Nm (1.5–7.5 ftlb.), e.g. VAG 1783 Torque wrench, 2-10 Nm (1.5-7.5
ftlb.)
Torque wrench, 6–50 Nm (4.5–37 ftlb.), e.g. VAG 1331A Torque wrench, 6-50 Nm (4.5-37
ftlb.)
Torque wrench, 40–200 Nm (30–148 ftlb.), e.g. VAG 1332 Torque wrench, 40-200 Nm
(30-148 ftlb.)
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Service
Technical Information
•
•
181/20 ENU
WLL2
2
Battery charger with a current rating of at least 90 A and - if required - also with a current and
voltage-controlled charge map for lithium starter batteries, e.g. VAS 5908 Battery charger
90A
9900 - PIWIS Tester 3
Preparatory work
Work Procedure: 1
Raise the vehicle using a lifting platform  Workshop Manual '4X00IN Lifting the vehicle'.
2
Remove both wheels on the front axle  Workshop Manual '440519 Removing and installing wheel'.
3
Remove both front wheel housing liners  Workshop Manual '505619 Removing and installing front
wheel housing liner'.
4
Remove front underbody cover  Workshop Manual '519219 Removing and installing cover for
front underbody'.
5
Only for vehicles with roll stabilization PDCC (I-no. 1P7): Disconnect front PDCC lines.
5.1
Disconnect 48-volt vehicle electrical
system  Workshop Manual '2X00IN Work
instructions for 48-volt vehicle electrical
system'.
5.2
Release and disconnect electric plug
connection (signal connector)  Pull off
PDCC connector -1-
5.3
Release and disconnect electric plug
connection (engine phase connector) 
Pull off PDCC connector -2-.
Pull off PDCC connector
6
Unscrew fastening screws  Removing heat shield
-1- and remove heat shield  Removing heat shield
-2- on left and right.
Removing heat shield
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Rework catalytic converter mounting
Work Procedure: 1
Remove catalytic converter mounting at the left and right on the transmission.
To do this, unscrew both fastening screws 
Removing catalytic converter mountingInstalling
catalytic converter mounting -1- and pull out
the bracket  Removing catalytic converter
mountingInstalling catalytic converter mounting -2-.
2
Rework mounting for catalytic converter by attaching
the washers to be retrofitted.
2.1
2.2
Push washer  Rework catalytic converter
mounting -2- onto the fastening screw 
Rework catalytic converter mounting -1- on
the bracket at the top.
Removing catalytic converter mounting
Part No.
Designation
Qty.
PAF01167026
Washer 8.4 x 24 x 2
1 ea.
Push washer  Rework catalytic converter mounting -4- onto the fastening screw 
Rework catalytic converter mounting -3- on the bracket at the bottom.
Part No.
Designation
Qty.
PAF901076
Washer 8.2 x 18 x 2
1 ea.
Rework catalytic converter mounting
3
Install catalytic converter mounting at the left and right on the transmission.
To do this, position the mounting in the installation position between the transmission and catalytic
converter  Removing catalytic converter mountingInstalling catalytic converter mounting -2-.
Screw in and tighten fastening screws  Removing catalytic converter mountingInstalling catalytic
converter mounting -1-.
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Technical Information
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181/20 ENU
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Fastening screws: Tightening torque 23 Nm (17ftlb.) Tightening torque 23 Nm (17ftlb.)
Installing catalytic converter mounting
Concluding work
Work Procedure: 1
Place heat shield  Installing heat shield -2- in installation position and screw in and tighten
fastening screws  Installing heat shield -1-.
•
Fastening screws: Tightening torque 5 Nm (3.5 ftlb.)
Installing heat shield
2
Only for vehicles with roll stabilization PDCC (I-no. 1P7): Connect front PDCC lines.
2.1
Connect and lock electric plug connection (signal connector)  Connecting PDCC
connector -1-.
2.2
Connect and lock electric plug connection (engine phase connector)  Connecting PDCC
connector -2-.
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2.3
Start the 48 V vehicle electrical system 
Workshop Manual '2X00IN Work instruction
for 48 V vehicle electrical system'.
3
Install underbody cover  Workshop Manual
'519219 Removing and installing cover for front
underbody'.
4
Install both front wheel housing liners  Workshop
Manual '505619 Removing and installing front wheel
housing liner'.
5
Install both wheels on the front axle  Workshop
Manual '440519 Removing and installing wheel'.
6
Lower the vehicle and remove it from the lifting platform  Workshop Manual '4X00IN Lifting the
vehicle'.
Connecting PDCC connector
Warranty processing
Scope 1:
Working time:
Labor time: 225 TU
Reworking catalytic converter mounting
Includes:
Raising and lowering the vehicle
Removing and installing wheels on the front axle
Removing and installing wheel housing shells on the front axle
Removing and installing front underbody cover
Removing and installing 48-volt vehicle electrical system
Removing and installing heat shield at the front left and right
Parts required:
PAF01167026
Washer 8.4 x 24 x 2
2 ea.
PAF901076
Washer 8.2 x 18 x 2
2 ea.
 Damage Code WLL2 066 000 1
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.
© 2021 Porsche Cars North America, Inc.
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