122-J7H9T-07

Service
Technical Information
75/17
ENU
6486
6
Noise Symptom - Noises From Plastic Rear Window: Replacing rear window (SY 75/17)
Vehicle Type:
911 GT3 RS (991)
Model Year:
As of 2015
Equipment:
Plastic rear window (made of polycarbonate)
Subject:
Rear window
Symptom:
The plastic rear window can become damaged or part of it can become visibly detached from the body
due to different temperatures and tension while driving.
This can cause wind noise.
Cause:
The components of the rear window – plastic (polycarbonate), screen print and primer – are not chemically compatible.
Impurities during the manufacturing process and tension due to temperature effects while driving result in
noises and cause water to leak in.
Remedial
Action:
In the event of a customer complaint about noises and if there are signs of damage in the bonding surface
area ( Damaged screen print -area arrows-), always check whether the bonding has become
detached before doing any other work:
•
•
To do this, press lightly against the window all around the edge of the rear window from inside the
vehicle using two fingers.
If you feel the rear window lifting off in the bonding area ( Damaged screen print -area arrows-),
the bonding has become detached.
In the event of a customer complaint about noises, the area can also be sprayed with leak-locating
spray/soapy water from outside and then blasted with compressed air from inside the vehicle.
If bubbles form, the bonding has also become detached.
 The rear window must be replaced, see Workshop Manual  Workshop Manual '648655 Replacing
rear window (Coupé)'.
AfterSales
June 6, 2018
Page 1 of 2
6
Service
6486
ENU
Technical Information
75/17
Damaged screen print
Parts Info:
991.545.111.91 – NEW –  Rear window
Invoicing:
The work involved is invoiced under the labor operation:
APOS
Labor operation
64865500
Replacing rear window
I No.
For invoicing and documentation using PQIS, enter the following coding:
Location (FES5)
64860
Rear window
Damage type (SA4)
2041
Wind noise, air noise
References:
 Workshop Manual '648655 Replacing rear window (Coupé)'
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.
June 6, 2018
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AfterSales