122-X3R3E-06

Service
Technical Information
149/17 ENU WH72
4
WH72 - Fitting Air Guides for Brake Discs (Workshop Campaign)
Vehicle Type:
911 GT3 (991)
Model Year:
2018
Subject:
Air guides for brake discs
Information:
Due to an allocation error, there is a possibility that the air guides for the brake discs on the
front axle were not supplied with the affected vehicles during the production process.
As a result, the air guides may not have been fitted during the sales check at the dealership.
Remedial
Action:
Fit air guides for brake discs in the front wheel housing.
Affected
Vehicles:
Only the vehicles assigned to the campaign (see also PIWIS Vehicle information). This campaign affects
107 vehicles in North America.
Parts required
Important:
Parts for this Campaign will NOT be automatically allocated to your dealership. Parts can be
ordered as normal with no PTEC/PAV required.
Parts Info:
Part No.
Designation
Qty.
99157513181
 Air guide for front wheel housing liner, left
1 ea.
99157513281
 Air guide for front wheel housing liner, right
1 ea.
99907351901
 Tapping screw for air guide
6 ea.
99959185501
 Speed nut for air guide
2 ea.
Required tools
Tools:
•
Torque wrench, 1.5 – 3 Nm (1 - 2 ftlb.), e.g. VAS 6494 - Torque screwdriver
AfterSales
May 7, 2018
Page 1 of 3
4
Service
WH72
ENU
Technical Information
149/17
Fitting air guides for brake discs
Raise the vehicle on a lifting platform Workshop Manual '4X00IN01 Lifting the vehicle'.
Work Procedure: 1
2
Turn the steering fully to the left.
3
Push on fastening nut on holder in the longitudinal member area.
4
Position air guide  Fitting air guide -2- on the longitudinal member and left wheel housing liner.
5
Tighten fastening screws  Fitting air guide -1-.
Tightening torque 3 Nm (2 ftlb.)
6
Turn the steering fully to the right and repeat steps 3
to 5 on the other side of the vehicle.
7
Move the steering to straight-ahead position.
8
Remove the vehicle from the lifting platform. 
Workshop Manual '4X00IN01 Lifting the vehicle'
9
Enter the campaign in the Warranty and Maintenance booklet.
Fitting air guide
Warranty processing
Scope 1:
Scope 1 must be invoiced if the campaign was carried out during the sales check.
Working time:
Labor time: 0 TU
Fitting air guides for brake discs
Parts required:
99157513181
Air guide for front wheel housing liner, left
1 ea.
99157513281
Air guide for front wheel housing liner, right
1 ea.
99907351901
Tapping screw for air guide
6 ea.
99959185501
Speed nut for air guide
2 ea.
 Damage Code WH72 066 000 1
May 7, 2018
Page 2 of 3
AfterSales
Service
Technical Information
Scope 2:
149/17 ENU WH72
4
Scope 2 must be invoiced if the campaign was not carried out during the sales check.
Working time:
Labor time: 35 TU
Fitting air guides for brake discs
Includes:
Raising and lowering the vehicle
Parts required:
99157513181
Air guide for front wheel housing liner, left
1 ea.
99157513281
Air guide for front wheel housing liner, right
1 ea.
99907351901
Tapping screw for air guide
6 ea.
99959185501
Speed nut for air guide
2 ea.
 Damage Code WH72 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.
© 2018 Porsche Cars North America, Inc.
AfterSales
May 7, 2018
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