122-M9M8G-09

Service
Technical Information
16/16
ENU
2651
2
Eliminating Symptoms - Engine: Reworking Vacuum Line for Sport Exhaust System (Sport
exhaust system does not function 16/16)
General Information
Symptom
Sport exhaust system cannot be activated or deactivated.
Vehicle Type:
911 GT3 (991)
Model Year:
As of 2014 up to 2016
Cause:
The vacuum line can slip off the control box as a result of component tolerances of the clamp.
Date of
Introduction:
Optimized clamps have been used in production since September 2, 2015.
Remedial
Action:
In the event of a customer complaint, check that the vacuum line is fitted securely on the control box at
the left and right.
•
•
If the vacuum line is fitted securely on the control box, the fault is not related to the cause described
here. Find the cause of the fault and correct it. Invoice for Scope 1.
If the vacuum line has slipped off the control box, the electric change-over valve can be contaminated by drawing in dirt. Replace electric change-over valve, blow out any dirt in the vacuum line
using compressed air and secure the vacuum line to the control box using a new clamp.
Tools and Materials
Tools and Materials
Part No.:
Designation:
7PP.906.270
 Electric change-over valve
999.512.764.00 – NEW –
 Clamp
Work Procedure
Checking that vacuum line is fitted securely on control box and replacing electric change-over valve
if necessary
1
Raise the vehicle.  Workshop Manual '4X00IN Lifting the vehicle'
2016© Porsche Cars North America, Inc.
AfterSales
Aug 18, 2016
Page 1 of 4
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Service
2651
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Technical Information
16/16
Check that the vacuum line  Checking that vacuum
line is seated securely -3- is fitted securely on control
box for sports exhaust system  Checking that
vacuum line is seated securely -5- at the left and
right:
2.1
If the vacuum line is fitted securely on the
control box, the fault is not related to the
cause described here. Find the cause of the
fault and correct it. Invoice for Scope 1.
End of action required.
2.2
If the vacuum line has slipped off the control
box, the electric change-over valve can be
contaminated by drawing in dirt.
Checking that vacuum line
is seated securely
Clean the vacuum line using compressed air and
Replace electric change-over valve. Secure the vacuum line to the control box with a new
clamp. Continue with Step  .
Aug 18, 2016
Page 2 of 4
3
Disconnect vacuum line from the control box to the electric change-over valve from the connections
on both sides, blow out any dirt using compressed air and clean the vacuum line.
4
Replace electric change-over valve  Electric change-over valve -2-.  Workshop Manual '2400IN
Overview of vacuum system - GT3'
AfterSales
2016© Porsche Cars North America, Inc.
Service
Technical Information
16/16
ENU
2651
2
Electric change-over valve
5
Secure the vacuum line to the control box with a new clamp (Part No.: 999.512.764.00).
Invoicing
Invoicing
Scope 1:
Checking that vacuum line is fitted securely on control box
The work involved is invoiced under the labor operation:
APOS
Labor operation
26510225
Checking actuators for exhaust flaps
I No.
For invoicing and documentation using PQIS, enter the following coding:
Location (FES5)
26410
Vacuum line
Damage type (SA4)
1817
Loose
2016© Porsche Cars North America, Inc.
AfterSales
Aug 18, 2016
Page 3 of 4
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Service
2651
Scope 2:
ENU
Technical Information
16/16
Checking that vacuum line is fitted securely on control box, replacing electric change-over
valve and securing vacuum line with a new clamp
The work involved is invoiced under the labor operation:
I No.
APOS
Labor operation
26510225
Checking actuators for exhaust flaps
APOS
Labor operation
26515025
Reworking actuators for exhaust flaps
I No.
For invoicing and documentation using PQIS, enter the following coding:
Location (FES5)
26410
Vacuum line
Damage type (SA4)
1817
Loose
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
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Tester are the ones that must be followed.
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