9912141-15

Service
Technical Information
141/15 ENU
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WF93 - Replacing Vacuum Line for Exhaust Flaps (Workshop Campaign)
Important:
CRITICAL WARNING - This campaign includes steps where control unit(s) in the vehicle will be
programmed with the PIWIS Tester. The vehicle voltage must be maintained between 13.5 volts and 14.5
volts during this programming. Failure to maintain this voltage could result in damaged control unit(s).
Damage caused by inadequate voltage during programming is not a warrantable defect. The technician
must verify the actual vehicle voltage in the PIWIS Tester before starting the campaign and also document
the actual voltage on the repair order. Please refer to Equipment Information EQ1401 for a list of suitable
battery chargers/power supplies which should be used to maintain vehicle voltage.
Model Year:
2017
Vehicle type:
911 Carrera (991)/911 Carrera S (991)
911 Carrera 4 (991)/911 Carrera 4S (991)
911 Targa 4 (991)/911 Targa 4S (991)
Equipment:
•
•
Subject:
Vacuum line for exhaust flaps
Issue:
There is a possibility that the vacuum line for the exhaust flaps on the affected vehicles was
installed too tightly and can loosen at one connection point over the service life of the vehicle.
Sports exhaust system (I-no. 176)
Carrera S exhaust system
As a result, there is no guarantee that the exhaust flaps and other vacuum-controlled actuators on the
engine will function correctly. This causes the warning message "Fault cooling system" to be displayed in
the instrument cluster.
Remedial
action:
Replace vacuum line for exhaust flaps.
Affected
Vehicles:
Only the vehicles assigned to the campaign (see also PIWIS Vehicle information).
Parts Info:
NOTE: PARTS WILL NOT BE AUTOMATICALLY ALLOCATED TO YOUR DEALERSHIP. ALL PARTS
MUST BE ORDERED VIA A PTEC/PAV.
•
Vehicles with sports exhaust system (I-no. 176):
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•
Tools:
•
•
•
•
•
•
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Part No.
Designation
– Use
Qty.
000 043 210 42
 Vacuum line, complete
– Sports exhaust system
1 ea.
911 Carrera S (991) vehicles without sports exhaust system:
Part No.
Designation
– Use
Qty.
000 043 210 43
 Vacuum line, complete
– Carrera S exhaust system
1 ea.
Torque screwdriver, 1.5 – 3 Nm (1 – 2 ftlb.), e.g. VAS 6494 - Torque screwdriver
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, 6 – 50 Nm (4.5 – 37 ftlb.), e.g. V.A.G 1331 - Torque wrench, 6-50 Nm/4.5-37
ftlb.
Suitable hose clip pliers, e.g. V.A.G 1275A - Hose clip pliers
9818 - PIWIS Tester II with PIWIS Tester test software version 16.300.030 (or higher) installed.
Battery Charger/Power Supply - Suitable for AGM Type batteries, recommended current rating of
70A fixed voltage 13.5V to 14.5V. Refer to Equipment Information EQ-1105
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Installation
position:
Installation position of vacuum line for exhaust flaps (shown on vehicle with sports exhaust system as an example)
Preparatory work
Procedure:
1
Raise the vehicle on a lifting platform  Workshop Manual '4X00IN Lifting the vehicle'.
2
Only for Cabriolet/Targa vehicles:
Move convertible top to service position.
 Workshop Manual '6101IN Convertible top service position (Cabriolet)'
 Workshop Manual '6101IN05 Convertible top service position'
3
Remove engine-compartment blower  Workshop Manual '198119 Removing and installing enginecompartment blower'.
4
Remove tail light at the left and right  Workshop Manual '943119 Removing and installing tail light'.
5
Remove rear apron  Workshop Manual '635519 Removing and installing rear apron'.
6
Remove rear spoiler.
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Release and disconnect electric plug
connection  Electric plug connection
for rear spoiler -1- for rear spoiler at the
right-hand side of the engine compartment.
Electric plug connection for rear spoiler
6.2
Loosen and unscrew fastening screw 
Loosening oil filler neck -2- for oil filler neck
 Loosening oil filler neck -1-.
6.3
Unclip oil filler neck  Loosening oil filler
neck -1- on the rear spoiler carrier plate 
Loosening oil filler neck -arrow- and carefully
bend it aside.
Loosening oil filler neck
6.4
Unscrew and remove fastening screws 
Fastening screws for rear spoiler (right side
shown as an example) -1- for the rear spoiler
at the left and right-hand side of the carrier
plate  Fastening screws for rear spoiler
(right side shown as an example) -2-.
Fastening screws for rear spoiler (right
side shown as an example)
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2
Carefully lift the rear spoiler up out of the
engine compartment  Removing rear
spoiler -arrow- and set it down on a suitable
surface.
7
Remove air guide for charge-air cooling  Workshop
Manual '211019 Removing and installing air guide for
charge-air cooling'.
8
Remove pressure pipe  Workshop Manual '214119
Removing and installing pressure pipe'.
9
Remove air cleaner housing  Workshop Manual
'242519 Removing and installing air cleaner housing'.
Removing rear spoiler
10 Remove heat shields for the catalytic converters at the left and right.
10.1
Loosen and unscrew fastening screw 
Fastening screws for heat shield -2- on the
back of the heat shield  Fastening screws
for heat shield -1-.
10.2
Loosen and unscrew fastening screws 
Fastening screws for heat shield -3- on the
underside of the vehicle.
Fastening screws for heat shield
10.3
Loosen and unscrew speed nuts  Removing
heat shield -2- on the underside of the engine
compartment side member.
10.4
Detach heat shield  Removing heat shield
-1- from the pin caps and guide it out to the
rear.
11 Remove control box for exhaust flap at the left and
right  Workshop Manual '265120 Removing and
installing control boxes for exhaust flaps'.
Removing heat shield
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Replacing vacuum line for exhaust flaps
Procedure:
1
Remove old vacuum line for exhaust flaps.
1.1
Loosen steel flexi-pipe  Securing steel
flexi-pipe at the right -1- going to the right
control box from the bracket  Loosening
steel flexi-pipe at the right -2- on the engine
carrier.
Loosening steel flexi-pipe at the right
1.2
Starting at the outside, unclip vacuum line 
Removing vacuum line -1- from the four clips
 Removing vacuum line -2- on the engine
carrier one after the other.
Make sure to leave the clips on the engine
carrier.
1.3
Lift vacuum line for exhaust flaps up out of the
engine compartment and remove it.
Removing vacuum line
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Pull outer right retaining clip  Removing
retaining clip -1- for the vacuum line off the engine
carrier  Removing retaining clip -arrow- and
remove it.
This clip will no longer be required due to the shape of
the new vacuum line.
3
Install new vacuum line for exhaust flaps.
3.1
WF93
2
Guide steel flexi-pipes at the left and right into
the engine compartment and then set the
vacuum line down on the engine carrier.
Removing retaining clip
3.2
Clip vacuum line  Installing new vacuum
line -1- into the two centre retaining clips 
Installing new vacuum line -arrows A- on the
engine carrier.
3.3
Align the vacuum line  Installing new
vacuum line -1- in the engine compartment 
Aligning vacuum line -bottom- in such a way
that the bend in the vacuum line is aligned with
the bend  Aligning vacuum line -arrows- on
the engine carrier  Installing new vacuum
line -2-.
To do this, carefully move the vacuum line
in the retaining clips to the left or right 
Aligning vacuum line -arrows B-.
3.4
Clip vacuum line into the outer left retaining
clip  Installing new vacuum line -arrow C-.
Installing new vacuum line
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Information
To avoid malfunctions as a result of vacuum lines slipping off, the following points must be
observed when fitting vacuum lines:
3.5
•
Route vacuum lines without tension
•
Only use water – if required – as a sliding compound when fitting vacuum lines
•
Vacuum lines must be pushed into the connection pieces as far as the marking
(approx. 10 mm)
Align the plug connection  Aligning vacuum
line -2- in such a way that the connecting
piece is pointing approx. 15-20° up from the
engine carrier  Aligning vacuum line -Angle
A-.
To do this, turn the connecting piece on the
vacuum line  Aligning vacuum line -1- if
necessary and check that the steel flexi-pipes
at the left and right are still routed straight
down  Aligning vacuum line -Angle B-.
Aligning vacuum line
3.6
Push connecting line  Inserting connecting
line -1- as far as the marking into the
connecting piece  Inserting connecting
line -2- on the vacuum line  Inserting
connecting line -arrow A-.
Inserting connecting line
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2
Insert steel flexi-pipe  Securing steel
flexi-pipe at the right -1- going to the right
control box into the bracket  Securing steel
flexi-pipe at the right -2- on the engine carrier.
Securing steel flexi-pipe at the right
Concluding work
Procedure:
1
Install control box for exhaust flap at the left and right  Workshop Manual '265120 Removing and
installing control boxes for exhaust flaps'.
2
Install heat shields for the catalytic converters at the left and right.
2.1
Guide in heat shield  Installing heat shield
-1- on the vehicle and position it on the pin
caps.
2.2
Screw on and tighten speed nuts  Installing
heat shield -2- on the pin caps.
Tightening torque 2.5 Nm (2 ftlb.)
Installing heat shield
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Screw in and tighten fastening screws 
Fastening screws for heat shield -2, 3- for
the heat shield.
Tightening torque 3.2 Nm (2 ftlb.)
+/-0.6 Nm (+/-0.4 ftlb.)
Install air cleaner housing  Workshop Manual
'242519 Removing and installing air cleaner
housing'.
Make sure that the new connecting line for exhaust
flaps that was installed previously is routed without
tension.
Fastening screws for heat shield
4
Install pressure pipe  Workshop Manual '214119 Removing and installing pressure pipe'.
5
Install air guide for charge-air cooling  Workshop Manual '211019 Removing and installing air
guide for charge-air cooling'.
6
Install rear spoiler.
6.1
Carefully lift rear spoiler into installation
position in the engine compartment.
When doing this, make sure that the guide pin
 Inserting guide pin -arrow- at the left and
right is positioned correctly in the respective
guide groove.
Inserting guide pin
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Screw in and tighten fastening screws 
Fastening screws for rear spoiler (right side
shown as an example) -1- for the rear spoiler
at the left and right side of the carrier plate 
Fastening screws for rear spoiler (right side
shown as an example) -2-.
Tightening torque 23 Nm (17 ftlb.)
Fastening screws for rear spoiler (right
side shown as an example)
6.3
Position oil filler neck  Securing oil filler
neck -1- on the coolant filler neck and clip
it into the carrier plate for rear spoiler 
Securing oil filler neck -arrow-.
6.4
Screw in and tighten fastening screw 
Securing oil filler neck -2- for oil filler neck.
Tightening torque 10 Nm (7.5 ftlb.)
Securing oil filler neck
6.5
Connect electric plug connection  Electric
plug connection for rear spoiler -1- for rear
spoiler at the right-hand side of the engine
compartment until the connector engages
securely and locks with an audible click.
7
Install and adjust rear apron  Workshop Manual
'635519 Removing and installing rear apron'.
8
Install tail light at the left and right  Workshop
Manual '943119 Removing and installing tail light'.
9
Electric plug connection for rear spoiler
Install engine-compartment blower  Workshop
Manual '198119 Removing and installing engine-compartment blower'.
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10 Only for Cabriolet/Targa vehicles:
Move convertible top out of service position.
 Workshop Manual '6101IN Convertible top service position (Cabriolet)'
 Workshop Manual '6101IN05 Convertible top service position'
11 Lower the vehicle and remove it from the lifting platform.
12 Perform standardisation run for rear spoiler.
12.1
Connect a battery charger with a current
rating of at least 40 A (e.g. VAS 5907 Battery charger 45A).
First connect the positive cable of the charger
to the positive terminal of the battery and then
connect the negative cable of the charger
to the ground point for jump-lead starting
 External power connection.
Then switch on the battery charger and start
charging the battery.
12.2
Switch on the ignition.
12.3
9818 - PIWIS Tester II must be connected
to the vehicle communication module (VCI) via
the USB cable. Then connect the communication module to the vehicle and switch on the
PIWIS Tester.
12.4
On the PIWIS Tester start screen, call up the
 'Diagnostics' menu and select the vehicle
type  ’911’  ’991’.
External power connection
The diagnostic application is then started and the control unit selection screen is populated.
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12.5
In the control unit selection screen (
‘Overview’ menu), select the  ‘Rear-end
electronics’ control unit and press •>>“ to
confirm your selection  Selecting rear-end
electronics control unit.
12.6
When the question “Create Vehicle Analysis
Log (VAL)?” appears, either press •F12“ to
create a VAL or press •F11“ if you do not
want to create a VAL.
12.7
Press •>>“ to acknowledge the message
Selecting rear-end electronics control unit
that may appear informing you that
campaigns for the vehicle are stored in the PIWIS information system.
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12.8
Once the 'Rear-end electronics' control unit has been found, select the  'Drive
links/checks' menu.
12.9
Select the  'Teach' function and press
•>>“ to confirm your selection  'Teach'
function.
2
'Teach' function
12.10 Select the function  'Standardisation run
for rear spoiler' and press •>>“ to confirm
your selection  Standardisation run for rear
spoiler.
Standardisation run for rear spoiler
NOTICE
Electrically moved components
•
Danger of limbs being trapped or severed
•
Risk of damage to components

Do not reach into the danger area.

Do not move components or tools into the danger area.

Keep third parties away from the danger area.
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12.11 Press •F8“ to start the standardisation run
 Starting standardisation run.
The rear spoiler moves automatically to
both end positions and then returns to its
original position.
Starting standardisation run
When the standardisation run is complete,
the message "Function completed" is
displayed under "Status" in the PIWIS Tester
display  Standardisation run successful.
12.12 Press •<<“ to return to the start page of the
 'Drive links/checks' menu.
12.13 Select the  'Overview' menu and press
•<<“ to return to the control unit selection
screen.
Standardisation run successful
12.14 Switch off the ignition.
12.15 Disconnect the PIWIS Tester from the vehicle.
12.16 Switch off and disconnect the battery charger.
13 Enter the campaign in the Warranty and Maintenance booklet.
Warranty Invoicing
Scope 1:
Replacing vacuum line for exhaust flaps
•
Vehicles with sports exhaust system (I-no. 176) and body shape Coupé
Working time:
Replacing vacuum line for exhaust flaps
Includes:
Removing and installing engine-compartment blower
Removing and installing tail lights
Removing and installing rear apron
Removing and installing rear spoiler
Removing and installing air cleaner housing
Removing and installing heat shields for catalytic converters
Removing and installing control boxes for exhaust flaps
Connecting and disconnecting battery charger
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Labor time: 258 TU
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Connecting and disconnecting PIWIS Tester
Performing standardisation run for rear spoiler
Parts required:
000 043 210 42
Vacuum line, complete
– Sports exhaust system
1 ea.
Warranty Invoicing:  Damage Code WF93 66 000, Repair Code 2
Scope 2:
Replacing vacuum line for exhaust flaps
•
Vehicles with sports exhaust system (I-no. 176) and body shape Cabriolet
Working time:
Replacing vacuum line for exhaust flaps
Includes:
Moving convertible top into service position
Removing and installing engine-compartment blower
Removing and installing tail lights
Removing and installing rear apron
Removing and installing rear spoiler
Removing and installing air cleaner housing
Removing and installing heat shields for catalytic converters
Removing and installing control boxes for exhaust flaps
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Performing standardisation run for rear spoiler
Labor time: 264 TU
Parts required:
000 043 210 42
Vacuum line, complete
– Sports exhaust system
1 ea.
Warranty Invoicing:  Damage Code WF93 66 000, Repair Code 2
Scope 3:
Replacing vacuum line for exhaust flaps
•
Vehicles with sports exhaust system (I-no. 176) and body shape Targa
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Working time:
Replacing vacuum line for exhaust flaps
Includes:
Moving convertible top into service position
Removing and installing engine-compartment blower
Removing and installing tail lights
Removing and installing rear apron
Removing and installing rear spoiler
Removing and installing air cleaner housing
Removing and installing heat shields for catalytic converters
Removing and installing control boxes for exhaust flaps
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Performing standardisation run for rear spoiler
Labor time: 282 TU
Parts required:
000 043 210 42
Vacuum line, complete
– Sports exhaust system
1 ea.
Warranty Invoicing:  Damage Code WF93 66 000, Repair Code 2
Scope 4:
Replacing vacuum line for exhaust flaps
•
911 Carrera S Coupé/911 Carrera 4S Coupé (991) vehicles without sports exhaust system
Working time:
Replacing vacuum line for exhaust flaps
Includes:
Removing and installing engine-compartment blower
Removing and installing tail lights
Removing and installing rear apron
Removing and installing rear spoiler
Removing and installing air cleaner housing
Removing and installing heat shields for catalytic converters
Removing and installing control boxes for exhaust flaps
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Performing standardisation run for rear spoiler
Labor time: 258 TU
Parts required:
000 043 210 43
Vacuum line, complete
– Carrera S exhaust system
1 ea.
Warranty Invoicing:  Damage Code WF93 66 000, Repair Code 2
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Technical Information
Scope 5:
141/15 ENU
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2
Replacing vacuum line for exhaust flaps
•
911 Carrera S Cabriolet/911 Carrera 4S Cabriolet (991) vehicles without sports exhaust
system
Working time:
Replacing vacuum line for exhaust flaps
Includes:
Moving convertible top into service position
Removing and installing engine-compartment blower
Removing and installing tail lights
Removing and installing rear apron
Removing and installing rear spoiler
Removing and installing air cleaner housing
Removing and installing heat shields for catalytic converters
Removing and installing control boxes for exhaust flaps
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Performing standardisation run for rear spoiler
Labor time: 264 TU
Parts required:
000 043 210 43
Vacuum line, complete
– Carrera S exhaust system
1 ea.
Warranty Invoicing:  Damage Code WF93 66 000, Repair Code 2
Scope 6:
Replacing vacuum line for exhaust flaps
•
911 Targa 4S (991) vehicles without sports exhaust system
Working time:
Replacing vacuum line for exhaust flaps
Includes:
Moving convertible top into service position
Removing and installing engine-compartment blower
Removing and installing tail lights
Removing and installing rear apron
Removing and installing rear spoiler
Removing and installing air cleaner housing
Removing and installing heat shields for catalytic converters
Removing and installing control boxes for exhaust flaps
Connecting and disconnecting battery charger
Connecting and disconnecting PIWIS Tester
Performing standardisation run for rear spoiler
Labor time: 282 TU
Parts required:
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000 043 210 43
Technical Information
Vacuum line, complete
– Carrera S exhaust system
1 ea.
Warranty Invoicing:  Damage Code WF93 66 000, Repair Code 2
References:
 Workshop Manual '198119 Removing and installing engine-compartment blower'
 Workshop Manual '211019 Removing and installing air guide for charge-air cooling'
 Workshop Manual '214119 Removing and installing pressure pipe'
 Workshop Manual '242519 Removing and installing air cleaner housing'
 Workshop Manual '265120 Removing and installing control boxes for exhaust flaps'
 Workshop Manual '4X00IN Lifting the vehicle'
 Workshop Manual '6101IN Convertible top service position (Cabriolet)'
 Workshop Manual '6101IN05 Convertible top service position'
 Workshop Manual '635519 Removing and installing rear apron'
 Workshop Manual '943119 Removing and installing tail light'
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
________
_______
_______
_______
Dr. Ing. h.c. F. Porsche AG is the owner of numerous trademarks, both registered and unregistered, including without limitation the Porsche Crest®, Porsche®, Boxster®, Carrera®, Cayenne®,
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distinctive shapes of the Porsche automobiles such as, the federally registered 911 and Boxster automobiles. The third party trademarks contained herein are the properties of their respective owners.
Porsche Cars North America, Inc. believes the specifications to be correct at the time of printing. Specifications, performance standards, standard equipment, options, and other elements shown are
subject to change without notice. Some options may be unavailable when a car is built. Some vehicles may be shown with non-U.S. equipment. The information contained herein is for internal authorized
Porsche dealer use only and cannot be copied or distributed. Porsche recommends seat belt usage and observance of traffic laws at all times.
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