122-R5K4T-05

Service
Technical Information
28/15
ENU
WF20
4
WF20 - Tightening Threaded Connections on Pressure Pipe for Front Axle Lift System
(Workshop Campaign)
Vehicle Type:
911 GT3 (991)
Model Year:
As of 2014 up to 2015
Equipment:
Front axle lift system (I-no. 474)
Concerns:
Pressure pipe for lift system on front axle
Information:
This is to inform you of a voluntary Workshop Campaign on the above-mentioned vehicles. There is a
possibility that the threaded connections on the pressure pipe for the electropneumatic lift
system on the front axle were not tightened to the prescribed tightening torque on the affected
vehicles.
If this is the case, the compressed air required for the lift system can escape at the threaded
connections. As a result, it will no longer be possible to lift the body at the front axle, e.g. for driving over
speed bumps, and the error message "Lift system fault" will be displayed in the instrument cluster.
Action
Required:
Tighten threaded connections on pressure pipe for front axle lift system.
Affected
Vehicles:
The VIN(s) can be checked by using PIWIS Vehicle Information link to verify if the campaign affects the
vehicle. This campaign is scope specific to the VIN! Failure to verify in PIWIS may result in an improper
repair. This campaign affects 1,021 vehicles in North America.
Materials:
Required materials (usually already available in the Porsche dealership):
Tools:
•
•
•
•
Part No.
Designation
– Use
Qty.
000.043.020.00
 Optimoly TA assembly grease
– For greasing central wheel bolts
100g tube
As much as required
(approx. 5 grams
required per vehicle)
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, 150 – 800 Nm (111 – 592 ftlb.), e.g. V.A.G 1601 - Torque wrench, 150 - 800
Nm (111 - 592 ftlb.)
9794 - Assembly aid
9796 - Socket wrench
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•
•
Technical Information
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9453 - Access ramps (only if required, depending on the type of lifting platform used)
Open-end insert, a/f 10 or flared ring socket insert, a/f 10
Open-ended wrench, a/f 19
Work
Procedure:
See Attachment “A”.
Claim
Submission:
See Attachment “B”.
Installation
Position:
1
2
3
4
–
–
–
–
Installation position overview
Union nut (tighten)
Rear pressure pipe (from Lift function module to connection point in wheel housing)
Fastening nut on pressure pipe
Front pressure pipe (from connection point in wheel housing to front spring strut)
Attachment "A": Work Procedure
Apr 2, 2015
Page 2 of 5
1
Raise the vehicle on a lifting platform  Workshop Manual '4X00IN Lifting the vehicle'.
2
Remove both front wheels  Workshop Manual '440519 Removing and installing wheel with central
bolt'.
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28/15
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Tighten threaded connection on pressure pipe for lift system in the front left wheel housing.
3.1
Turn the steering fully to the right.
Information
The pressure pipe for the lift system on the front axle must not be twisted when tightening the
threaded connection.
Loosen the threaded connection again if necessary and then tighten it to the prescribed
tightening torque again.
3.2
4
Tighten union nut  Tightening threaded
connection -1- on the rear pressure pipe 
Tightening threaded connection -2- using a
torque wrench and an open-end socket insert
(a/f 10).
Counter at the fastening nut  Tightening
threaded connection -3- on the front pressure
pipe  Tightening threaded connection -4using an open-ended wrench (a/f 19).
Tightening torque 5 Nm (3.5 ftlb.)
+1.5 Nm (+1 ftlb.)
Tighten threaded connection on pressure pipe for lift
system at the front right.
4.1
Tightening threaded connection
Turn the steering fully to the left.
Information
The pressure pipe for the lift system on the front axle must not be twisted when tightening the
threaded connection.
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AfterSales
Apr 2, 2015
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Loosen the threaded connection again if necessary and then tighten it to the prescribed
tightening torque again.
4.2
Tighten union nut  Tightening threaded
connection -1- on the rear pressure pipe 
Tightening threaded connection -2- using a
torque wrench and an open-end socket insert
(a/f 10).
Counter at the fastening nut  Tightening
threaded connection -3- on the front pressure
pipe  Tightening threaded connection -4using an open-ended wrench (a/f 19).
Tightening torque 5 Nm (3.5 ftlb.)
+1.5 Nm (+1 ftlb.)
Tightening threaded connection
5
Install both front wheels  Workshop Manual
'440519 Removing and installing wheel with central bolt'.
6
Remove the vehicle from the lifting platform.
7
Enter the workshop campaign in the Warranty and Maintenance booklet.
Attachment "B": Claim Submission - Workshop Campaign WF20
Warranty claims should be submitted via WWS/PQIS.
Open campaigns may be checked by using either the PIWIS Vehicle Information system or through PQIS
Job Creation.
Labor, parts, and sublet will be automatically inserted when Technician is selected in WWS/PQIS. If
necessary, the required part numbers will need to be manually entered into warranty system by the dealer
administrator.
Working time:
Tightening threaded connections on pressure pipe for lift system
Includes:
Raising and lowering the vehicle
Removing and installing both front wheels
Labor time: 68 TU
Materials required:
000.043.020.00
Apr 2, 2015
Page 4 of 5
Optimoly TA assembly grease (100g tube)
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0.05 ea.
(= approx. 5 g)
2015© Porsche Cars North America, Inc.
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 Damage code WF20 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. If a particular condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your authorized Porsche Dealer for the latest information
about whether a particular technical bulletin applies to your vehicle. Part numbers listed in these bulletins are for reference only. Always check with your authorized Porsche dealer to verify the current and
correct part numbers. 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.
© Porsche Cars North America, Inc.
Dealership
Distribution
Routing
Service Manager
_______
Shop Foreman
_______
Service Technician
________
_______
_______
_______
Asst. Manager
_______
Warranty Admin.
_______
Service Technician
________
_______
_______
_______
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2015© Porsche Cars North America, Inc.
AfterSales
Apr 2, 2015
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