122-H9F7J-03

Installation and Conversion Instructions
911 (991)
2/16
ENU
2601
2
Sports Exhaust System (176)
Information:
Retrofitting
Model Year:
As of 2017 up to 2019
Vehicle type:
911 Carrera (991)/911 Carrera 4 (911)/911 Targa 4 (991)
Engine Type:
MDCKA (3.0 L)
Figure 1
Notes:
The sports exhaust system is activated and deactivated using the switch console with the additional
"Twin tailpipe" button. The sports exhaust system is also activated by pressing the “Sport” and “Sport
Plus” buttons. The sports exhaust system can be switched off separately in these modes using the "Twin
tailpipe" button.
Strip for switches and tailpipes must also be ordered. The switch console is modular and must be
assembled in accordance with the new vehicle equipment.
Engine power and exhaust behaviour of the vehicle are not affected.
Part
Information.:
991.044.200.30
 Sports exhaust system, set
Also order the following:
991.044.200.24
1x
991.613.955.50.DML1 1 x
 Tailpipe, silver, set
 Combined switch (switch console), I-no. 652, Coupé
Tequipment
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991.613.957.50.DML1 1 x
 Combined switch (switch console), I-no. 653, Coupé
991.613.959.50.DML1
 Combined switch (switch console), I-no. 651, Coupé
1x
991.613.967.50.DML1 1 x
 Combined switch (switch console), I-no. 552, Cabriolet
991.613.963.50.DML1
 Combined switch (switch console), Targa
1
1x
Depending on vehicle equipment
Parts List:
Figure 2
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Page 2 of 30
9P1.254.400.A
1x
Left catalytic converter  Figure 2 -1-
9P1.251.263
2x
Seal  Figure 2 -2-
9P1.251.187.B2
1x
Tailpipe, silver  Figure 2 -3-
9P1.251.188.B2
1x
Tailpipe, silver  Figure 2 -4-
9P1.254.450.A
1x
Right catalytic converter  Figure 2 -5-
9P1.253.145
2x
Clamping sleeve  Figure 2 -6-
997.111.230.80
2x
Clamp  Figure 2 -7-
9P1.251.751
2x
Clamp on main silencer  Figure 2 -8-
999.073.418.01
2x
Tapping screw, ST 4.8 x 19-C  Figure 2 -9-
999.076.091.01
2x
Hexagon nut, M6  Figure 2 -10-
996.505.649.01
1x
Bracket  Figure 2 -11-
9P1.251.053.A
1x
Main silencer  Figure 2 -12-
991.505.811.04OK1
1x
Rear apron (black, grained)  Figure 2 -13-
991.505.651.04OK1
1x
Tailpipe cover (black, grained)  Figure 2 -14-
991.505.639.03
1x
Rear support  Figure 2 -15-
991.505.475.04
1x
Heat shield  Figure 2 -16-
999.507.309.02
4x
Speed nut, ST 4.8 (not shown)
Tequipment
Installation and Conversion Instructions
999.084.642.02
8x
Hexagon nut, M8 (not shown)
911 (991)
2/16
ENU
2601
991.505.837.02
1x
Lower retaining strip, middle (not shown)
991.505.837.03
2x
Lower retaining strip, outer (not shown)
999.190.191.30
3x
Blind rivet, A3.2 x 17 (not shown)
9A7.007.483.00
4x
Torx screw (for securing seat), (not shown)
9P3.974.280
1x
Wire harness for sports exhaust system (not shown)
999.650.531.00
1x
Cable ring eyelet (not shown)
999.650.566.22
1x
Socket contact (not shown)
991.044.200.15
1x
Cable casing (not shown)
999.073.227.09
1x
Tapping screw, ST 4.8 x 19 (not shown)
N 020.904.4
15 x
Tie-wrap (not shown)
999.073.236.0A
8x
Countersunk screw, M6 x 10 (for securing heat shield for
turbocharger)
2
2
Contained in set 991.044.200.24.
Figure 3
Parts included for vacuum supply system
9P1.251.838.A
1x
Vacuum line, metal  Figure 3 -1-
900.918.005.40
1x
Plastic tube (5 x 1 x 1,000 mm)  Figure 3 -2-
06E.133.794
3x
T-piece  Figure 3 -3-
999.651.363.01
1x
Cable holder  Figure 2 -4-
999.512.707.00
4x
One-ear hose clamp, 9.6-11.3  Figure 3 -5-
999.651.401.01
4x
Clip (for securing vacuum line, metal)  Figure 3 -6-
9A1.110.666.00
2x
Moulded hose  Figure 3 -7-
999.239.048.40
1x
Connecting hose (4.5 x 2.5 x 28 mm)  Figure 3 -8-
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Materials:
190-mm steel flexi-pipe  Figure 3 -9-
1x
991.111.504.00
991.111.502.00
1x
93-mm steel flexi-pipe  Figure 3 -10-
7PP.906.283.F
1x
Change-over valve  Figure 3 -11-
999.181.518.50
1x
Protective tube, L = 50 mm  Figure 3 -12-
000.043.172.00
1x
Sealing cord
000.043.004.82
1x
Optimol-HT mounting paste
———
Rust solvent, commercially available, e.g. WD40
Identifying features when installed:
In addition to the Porsche logo, a part number is shown on the main silencer, catalytic converters and
tailpipes.
Notes:
The relevant legal regulations must be observed in the various countries.
9900 - PIWIS Tester 3
Tools:
T10118 - Assembly tool
P300 - Socket-wrench insert
Transmission and Engine Jack
Assembly:
1
Preparatory work:
1.1
Move convertible top to service position.
1.1.1
Cabriolet:  Workshop Manual '6101IN Convertible-top service position
(Cabriolet)'
1.1.2
Targa:  Workshop Manual '6101IN05 Convertible-top service position'
WARNING
Moving components
•
Danger of limbs being trapped or severed

Do not reach into the danger area.

Secure the system to prevent it from being activated accidentally.

Keep third parties away from the danger area.
Feb 28, 2020
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1.2
Extend the rear spoiler manually using the rocker switch in the passenger compartment.
1.3
Remove left door sill trim.  Workshop Manual '680519 Removing and installing inner door
sill trim'
1.4
Remove left front seat.  Workshop Manual '72011901 Removing and installing front seat'
Tequipment
Installation and Conversion Instructions
911 (991)
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1.5
Remove rear seat cushion.  Workshop Manual '745719 Removing and installing rear seat
cushion'
1.6
Only for Targa:
Remove trim panels and cover in the
passenger compartment.
1.6.1
Remove center trim panel  Figure
4 -1- and trim panel at the left side
 Figure 4 -2- from the roll-over
bar.  Workshop Manual '708119
Removing and installing trim panel
for roll-over bar'
1.6.2
Remove rear side trim panel at the
left  Figure 4 -3-.  Workshop
Manual '707519 Rear side trim
panel'
1.6.3
Figure 4
Remove trim panel for rear wall 
Figure 5 -1- and sound absorber 
Figure 5 -2-.
Figure 5
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1.7
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1.6.4
Remove rear cover/shield 
Figure 6 -1-.  Workshop Manual
'70531910 Removing and installing
rear cover'
1.6.5
Remove rear cover  Figure 6 -2-.
 Workshop Manual '70531911
Removing and installing rear cover
(Targa)'
1.6.6
Remove trim panel for convertible
top compartment at the center
 Figure 6 -3- and trim panel for
Figure 6
convertible top compartment at the
left side  Figure 6 -4-.  Workshop Manual '700819 Removing and installing
trim panel for convertible top compartment (Targa)'
1.6.7
Loosen trim panel for convertible
top compartment at the right side
 Figure 7 -1- and set it aside 
Figure 7 -arrow-.
Only for Cabriolet:
Remove trim panels and cover in the
passenger compartment.
1.7.1
1.7.2
1.8
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Installation and Conversion Instructions
Remove rear side trim panel at the
left.  Workshop Manual '707519
Removing and installing rear side
trim panel (Cabriolet)'
Figure 7
Remove trim panel for rear wall. 
Workshop Manual '703119 Removing and installing trim panel for rear wall'
1.7.3
Remove rear cover.  Workshop Manual '705319 Removing and installing rear
cover'
1.7.4
Remove trim panel for convertible top compartment.  Workshop Manual
'700819 Removing and installing trim panel for convertible top compartment
(Cabriolet)'
Only for Coupé:
Remove trim panels and cover in the passenger compartment.
1.8.1
Remove rear roof trim panel.  Workshop Manual '708519 Removing and
installing rear roof trim panel'
1.8.2
Remove B-pillar trim panel at the left and right.  Workshop Manual '706719
Removing and installing B-pillar trim panel'
Tequipment
Installation and Conversion Instructions
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911 (991)
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2
1.8.3
Remove C-pillar trim panel at the left and right.  Workshop Manual '706819
Removing and installing C-pillar trim panel'
1.8.4
Remove rear side trim panel at the left and right.  Workshop Manual '707519
Removing and installing rear side trim panel (Coupé)'
1.8.5
Remove rear cover.  Workshop Manual '705319 Removing and installing rear
cover (Coupé)'
1.8.6
Remove moulded part  Figure 8
-1-.
Remove the following components in the rear area.
2.1
Remove engine-compartment blower. 
Workshop Manual '198119 Removing and
installing engine-compartment blower'
2.2
Remove air guide.  Workshop Manual
'243619 Removing and installing air guide'
2.3
Remove tail lights.  Workshop Manual
'943119 Removing and installing tail light'
Figure 8
2.4
Remove rear apron.  Workshop Manual '635519 Removing and installing rear apron'
2.5
Remove bumper together with heat shield.  Workshop Manual '635019 Removing and
installing rear bumper'
2.6
Remove rear spoiler.  Workshop Manual '66581905 Removing and installing rear spoiler'
2.7
Remove air guide on charge-air cooler
 Figure 9 -1, 2-.  Workshop Manual
'211019 Removing and installing air guide for
charge-air cooling'
Figure 9
2.8
Remove pressure pipe  Figure 10 -1-. 
Workshop Manual '214119 Removing and
installing pressure pipe'
Figure 10
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2.9
Remove air cleaner housing  Figure 11 -1-.
 Workshop Manual '242519 Removing and
installing air cleaner housing'
2.10
Remove DME control unit and holder. 
Workshop Manual '247019 Removing and
installing DME control unit'
Figure 11
NOTICE
Incorrect line routing
•
Risk of damage to lines and hoses
•
Malfunction and fault memory entry on control unit

Avoid small bending radii when routing lines.

File down edges and burrs in the routing area or mask them with adhesive tape.

Maintain a sufficient distance from components exposed to high temperatures while driving.
3
Install wire harness for sports exhaust system.
3.1
Prepare wire harness for sports exhaust system.
3.1.1
Cut socket contact and cable ring eyelet off wire harness for sports exhaust
system.
3.1.2
Feed wire harness for sports exhaust system out of the existing cable casing.
3.1.3
Cut a 1.8 m length off the supplied cable casing.
3.1.4
Pull wire harness for sports exhaust
system  Figure 12 -1- into the 1.8
m long cable casing using welding
wire (e.g. MIG welder coil).
Figure 12
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Installation and Conversion Instructions
3.2
911 (991)
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2601
2
Overview of routing of wire harness for sports
exhaust system:
1
2
3
4
5
– Engine compartment
– Sleeve
– Wire harness in passenger
compartment, right
– Wire harness in passenger
compartment, left
– Control unit for rear-end electronics
Figure 13
3.3
Punch grommet  Figure 14 -1- ( Figure
14 -arrow-).
3.4
Guide wire harness for sports exhaust system
through the grommet into the passenger
compartment.
Length of wire harness for sports exhaust
system in the engine compartment from
grommet to connector is approx. 1.4 m.
Figure 14
3.5
Route wire harness for sports exhaust system
 Figure 15 -1- in the engine compartment
at the right and secure to the standard engine
wire harness with a tie-wrap.
2
3
– Engine wire harness
– Right engine mount
Route wire harness for sports exhaust system
parallel to the standard wire harness for the
vacuum valve.
Figure 15
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Installation and Conversion Instructions
Route wire harness for sports exhaust system
 Figure 16 -1- along the wire harnesses in
the passenger compartment at the left and
right.
Route BN line to ground point 15  Figure 16
-2-.
Figure 16
3.7
Connect BN line to ground point 15 (shown on
the Targa).
1
3
3.8
– Center bearing for backrest
– Hydraulic pump
3.7.1
Shorten BN line.
3.7.2
Crimp BN line and cable ring eyelet
together.
3.7.3
Secure cable ring eyelet to ground
point 15  Figure 17 -2-.
Tightening torque 9.7 Nm
(7.5 ftlb.)
Figure 17
Route wire harness for sports exhaust system
 Figure 18 -1- further along wire harness in
passenger compartment at the left, in cable
duct  Figure 18 -2- to the rear-end electronics control unit.
Figure 18
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Installation and Conversion Instructions
3.9
3.10
911 (991)
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2
Remove rear-end electronics control unit.
3.9.1
Fold back the carpet.
3.9.2
Only for Targa/Cabriolet:
Unscrew four screws  Figure 19
-2- and one hexagon nut  Figure
19 -1- and remove reinforcement
plate  Figure 19 -3-.
3.9.3
Remove rear-end electronics
control unit  Figure 19 -4- from
the foam holder and disconnect
electric plug connections.
Connect wire harness for sports exhaust
system to the rear-end electronics control
unit.
Figure 19
3.10.1
Press down the locking mechanism
 Figure 20 -arrow- and push the
grey plug socket  Figure 20 -1out of the plug carrier (coding: blue)
 Figure 20 -2-.
3.10.2
Shorten BK/YE line.
Crimp socket contact
(999.650.566.22) and BK/YE line
together.
Figure 20
Information
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Installation and Conversion Instructions
Ensure socket contact is seated securely.
3.10.3
Insert socket contact  Figure 21
-1- into chamber A2 of the grey
plug socket  Figure 21 -2-.
Figure 21
3.10.4
Push grey plug socket  Figure
22 -1- into the plug carrier (coding:
blue)  Figure 22 -2- until the
locking mechanism  Figure 22
-arrow- engages.
Figure 22
4
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3.11
Seal grommet  Figure 23 -1- with sealing
cord (000.043.172.00).
3.12
The interior equipment is installed in reverse
order to removal.
3.13
Install left front seat.  Workshop Manual
'72011901 Removing and installing front
seat'
3.14
Install inner door sill trim at the left. 
Workshop Manual '680519 Removing and
installing inner door sill trim'
Install DME control unit and holder.  Workshop
Manual '247019 Removing and installing DME control unit'
Tequipment
Figure 23
Installation and Conversion Instructions
911 (991)
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2
CAUTION
Hot components
•
Risk of burns

Let hot components cool down.

Wear personal protective gear.
5
Remove exhaust system.
5.1
Remove heat shield for turbocharger at the
left  Figure 24 -2- and right.
Figure 24
WARNING
Danger of objects or loads falling down
•
Risk of squashing or crushing

Secure components to prevent them from falling down.
Information
The exhaust system must only be removed with the help of another person.
5.2
6
Remove exhaust system.  Workshop Manual '260119 Removing and installing exhaust
system'
Install vacuum line.
6.1
Assemble vacuum line.
6.1.1
Cut off 3 sections (length: 25 mm, 70 mm, 350 mm) of plastic tube
(9P1.251.838.A).
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Information
Insert plastic tubes at least 12 mm into the steel flexi-pipe/moulded hose or
connecting hose.
6.1.2
Connect components together as
shown in Figure 33.
1
2
3
4
5
6
7
8
9
–
–
–
–
–
–
–
–
–
190-mm steel flexi-pipe
One-ear hose clamp
Plastic tube (25 mm)
Moulded hose
Plastic tube (70 mm)
50-mm hose
T-piece
Plastic tube (350 mm)
Moulded hose
Press one-ear hose clamp  Figure
25 -2- together.
6.1.3
Figure 25
Insert metal vacuum line
(9P1.251.838.A)  Figure 26 -3as far as the marking (white) 
Figure 26 -arrow a- into the T-piece
 Figure 26 -4-.
Insert metal vacuum line as far as
the marking (white)  Figure 26
-arrow a- into the 93-mm steel
flexi-pipe  Figure 26 -1-.
Press one-ear hose clamp  Figure
26 -2- together.
6.2
Figure 26
Secure assembled vacuum line  Figure 27
-1- to the engine carrier with four clips 
Figure 27 -2-.
Figure 27
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Installation and Conversion Instructions
6.3
911 (991)
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2
Clip cable holder  Figure 28 -1- to the
engine carrier  Figure 28 -2-.
Clip steel flexi-pipe  Figure 28 -2- into cable
holder.
7
Install sports exhaust system.
Figure 28
7.1
Install right catalytic converter  Figure 29
-1- with a new seal on the turbocharger 
Figure 29 -3- and secure with a new hexagon
nut  Figure 29 -2- to prevent it from falling
down.
Information
•
When re-installing oxygen sensors, only
grease the thread with lubricant.
•
New oxygen sensors have already been
greased and the thread is installed with a
protection cap.
Figure 29
Information
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Installation and Conversion Instructions
The oxygen sensors can only be screwed by 4 – 5 turns without disconnecting the electric
plug connections.
7.2
Install oxygen sensors upstream of catalytic
converter  Figure 30 -1- and downstream
of catalytic converter  Figure 30 -2- on the
right catalytic converter.
Tightening torque 50 Nm (37 ftlb.)
+/-8 Nm (+/-6 ftlb.)
7.3
Install left catalytic converter with a new seal
on the turbocharger and secure with a new
hexagon nut to prevent it from falling down.
Information
The oxygen sensors can only be screwed by
4 – 5 turns without disconnecting the electric
plug connections.
7.4
Install oxygen sensors upstream and
downstream of catalytic converter on the left
catalytic converter.
Tightening torque 50 Nm (37 ftlb.) +/-8 Nm (+/-6 ftlb.)
7.5
Install clamping sleeve at the left  Figure 31
-1- and right on the catalytic converters.
Figure 30
Install clamps  Figure 31 -2- on the main
silencer.
Figure 31
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Installation and Conversion Instructions
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Information
•
7.6
Apply a light coating of high-temperature grease (e.g. Optimoly HT, Part No.
000.043.004.00) on the clamp or pipe adapter before installation.
Guide main silencer  Figure 32 -1- into the
catalytic converter at the left and right with
the help of another person  Figure 32 -a-.
Slide clamping sleeves  Figure 32 -2- over
the pipe adapters.
Figure 32
7.7
Install restraining straps  Figure 33 -1-.
Figure 33
7.8
Slide vacuum line at the left and right 
Figure 34 -1- onto the exhaust flap control
box and press one-ear hose clamp  Figure
34 -2- together.
Figure 34
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Installation and Conversion Instructions
Position main silencer with lock  Figure 35
-1- on the main silencer holder  Figure 35
-2- ( Figure 36 -arrow-).
Tighten restraining straps.
Tightening torque 15 Nm (11 ftlb.) +/-10
%
Figure 35
7.10
Install and tighten the remaining hexagon
nuts  Figure 36 -1- securing the catalytic
converters to the turbocharger.
Tightening torque 25 Nm (19 ftlb.) +/-10
%
Figure 36
Figure 37
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Installation and Conversion Instructions
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Information
It is important to ensure that the clamps
and pipe joiners are tightened in horizontal
position.
Clamps must be horizontal when tightened
7.11
Tighten clamping sleeves  Figure 38 -4and clamps  Figure 38 -1-.
7.11.1
Tighten clamping sleeves.
Tightening torque 30 Nm
(22 ftlb.)
7.11.2
Tighten clamps.
Tightening torque 55 Nm
(41 ftlb.) +/-10 %
Figure 38
7.12
8
Install heat shield for turbocharger at the left
 Figure 39 -2- and right.
Convert heat shield on bumper.
8.1
Remove standard heat shield from rear
bumper.
Figure 39
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8.1.1
Installation and Conversion Instructions
Unscrew tapping screw  Figure
40 -1- and remove bracket 
Figure 40 -2-.
Figure 40
8.2
8.1.2
Unscrew hexagon nuts  Figure 41
-1- and remove rear supports 
Figure 41 -2-.
8.1.3
Disconnect heat shield and rear
bumper.
Assemble new heat shield and bumper.
Figure 41
8.2.1
Position rear support  Figure 42
-1- on the heat shield. Screw on
and tighten hexagon nuts  Figure
42 -2-.
Tightening torque 9.7 Nm
(7.5 ftlb.)
Figure 42
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911 (991)
Installation and Conversion Instructions
8.2.2
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Position fastening bracket  Figure
43 -1- and screw in and tighten
tapping screw  Figure 43 -2-.
Tightening torque 2.8 Nm
(2 ftlb.)
Convert rear apron.
Figure 43
9.1
Remove rear skirt.  Workshop Manual
'636819 Removing and installing rear skirt'
9.2
Make cut-out for new rear skirt.
9.2.1
Mark rear apron.
Figure 44
Figure 45
1
X
Y
– Bar
– Distance from bar: 5 mm
– Dimension = 16 mm
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Z
9.2.2
– Distance from edge of hole: 5 mm
Saw along the marking using a body
saw.
Re-work cut edges if necessary.
Figure 46
9.3
Clip tailpipe cover  Figure 47 -1- into the
rear skirt  Figure 47 -2-.
Figure 47
9.4
Clip rear skirt  Figure 48 -1- into the rear
apron  Figure 48 -2-.
Screw in and tighten screws  Figure 48 -3-.
Figure 48
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Installation and Conversion Instructions
9.5
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2
Secure center retaining strip  Figure 49
-2- and two retaining strips at the outside 
Figure 49 -1- to the rear apron using rivets.
10 Concluding work:
10.1
Install the air cleaner housing.  Workshop
Manual '242519 Removing and installing the
air cleaner housing'
10.2
Install pressure pipe.  Workshop Manual
'214119 Removing and installing pressure
pipe'
10.3
Figure 49
Connect vacuum line.
A
B
– Without sports exhaust system
– With sports exhaust system
Figure 50
10.3.1
Install vacuum valve  Figure 51
-1- into the holder  Figure 51 -a-.
Pull off moulded hose  Figure 51
-2- ( Figure 51 -b-).
Pull moulded hose  Figure 59 -2off the standard vacuum line.
Figure 51
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10.3.2
Installation and Conversion Instructions
Cut 20 mm  Figure 52 -1- off the
plastic tube (900.918.005.40).
Make a marking in the center.
Install connecting hose
(999.239.048.40)  Figure 52
-2- and T-piece (06E.133.794) 
Figure 52 -3- as far as the marking
on the plastic tube (20 mm).
Figure 52
10.3.3
Install connecting line  Figure 53
-1- between the vacuum valves 
Figure 53 -a-.
Insert standard vacuum line 
Figure 53 -2- at least 10 mm into
the T-piece  Figure 53 -b-.
Figure 53
10.3.4
Cut 50 mm off the plastic tube
(900.918.005.40)  Figure 54
-2-.
Insert plastic tube (50 mm) at least
10 mm into the moulded hose
 Figure 54 -1- ( Figure 54
-arrow-).
Figure 54
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10.3.5
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Install moulded hose  Figure 55
-2- on the vacuum valve.
Cut standard vacuum line  Figure
55 -1- at the same height as the
plastic tube (50 mm).
Cut 5 mm off the ends at both
sides.
Figure 55
10.3.6
Insert the ends  Figure 56
-arrows- of the vacuum line you
have just cut at least 10 mm into the
T-piece  Figure 56 -1-.
Figure 56
10.3.7
Connect the new vacuum line 
Figure 57 -1- to the new vacuum
valve  Figure 57 -2- ( Figure 57
-arrow-).
Connect electric plug connection.
Figure 57
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10.4
Install air guide for charge-air cooler  Figure
58 -1, 2-.
10.5
Install rear spoiler.  Workshop Manual
'66581905 Removing and installing rear
spoiler'
10.6
Install engine-compartment blower. 
Workshop Manual '198119 Removing and
installing engine-compartment blower'
10.7
Figure 58
Install bumper.
10.7.1
Unscrew screws  Figure 59 -1on the heat shield.
10.7.2
Install bumper together with heat
shield.  Workshop Manual
'635019 Removing and installing
rear bumper'
Figure 59
10.7.3
Tighten screws  Figure 60 -1- on
the heat shield.
Figure 60
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Installation and Conversion Instructions
10.8
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Install rear apron.  Workshop Manual
'635519 Removing and installing rear apron'
Secure rear apron in the center using a new
tapping screw (999.073.227.09  Figure
61 -1-.
10.9
Install tailpipe covers.  Workshop Manual
'263519 Removing and installing tailpipe
cover'
10.10 Install tail lights.  Workshop Manual
'943119 Removing and installing tail light'
Figure 61
WARNING
Moving components
•
Danger of limbs being trapped or severed

Do not reach into the danger area.

Secure the system to prevent it from being activated accidentally.

Keep third parties away from the danger area.
10.11 Retract the rear spoiler manually using the rocker switch in the passenger compartment.
10.12 Convert switch console.
10.12.1 Remove switch console.  Workshop Manual '962719 Removing and installing
switch console'
Information
The switch console consists of a total of 16 buttons, 10 light guides and 10 trims.
Each half can be used for the left or right row of the main body.
10.12.2 Assemble new switch console in accordance with the new vehicle equipment.
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Install light guide at the correct side
 Figure 62 -1- in the main body 
Figure 62 -arrow-.
Figure 62
Install trim  Figure 66 -1underneath the button in the main
body  Figure 66 -arrows-.
Figure 66
Position button  Figure 67 -1- and
clip it into the main body  Figure
67 -arrow-.
10.12.3 Install switch console.  Workshop
Manual '962719 Removing and
installing switch console'
Figure 67
NOTICE
Voltage drop
•
Risk of irreparable damage to control unit
•
Risk of damage to control unit
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•
Fault entries in the control unit
•
Coding in the control unit is aborted
•
Malfunctions in control unit, even during programming

Switch off the ignition and remove the ignition key before disconnecting the control unit.

Ensure that the power supply is not interrupted during programming.

Connect a battery charger with a current rating of at least Nominal value 90 A to the vehicle battery.
Information
The 9900 - PIWIS Tester III instructions take precedence since the description may be different
with later Tester releases.
The procedure described here has been structured in general terms; different text or additions may
appear on the 9900 - PIWIS Tester III.
11 Code the sports exhaust system.
11.1
9900 - PIWIS Tester 3 must be connected before switching on the ignition.
11.2
Select the required vehicle type. PIWIS Tester Diagnostics starts.
Information
The sport exhaust system button can only be coded on the right-hand side of the switch
console.
11.3
Code keypad assignment.  Workshop Manual '962755 Replacing switch console'
11.4
Maintenance of vehicle data
11.4.1
Select Additional menu by pressing •F7“.
11.4.2
Select the "Maintenance of vehicle data" function. Press •F12“ until "M numbers"
appears in the Value group column.
11.4.3
Select "176 - Sports exhaust system" in the Coding value column. When you touch
the Installed cell, a tick appears.
11.4.4
Save the values with •F8“. Wait until the message "Modified values have been
buffered appears".
11.4.5
Press •F12“ until •F8“ can be activated.
11.4.6
Press •F8“ to write values. Wait until the message "Generation of vehicle data is
complete" appears.
11.4.7
Press •F12“ to switch to Report management. Open the log by pressing •F10“
and check that vehicle equipment "176 Sports exhaust system" is displayed.
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Installation and Conversion Instructions
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Adapt coding.
11.5.1
Press •F11“ to return to the list of control units.
Select all control units.
11.5.2
Switch to the "Codings/adaptations" menu.
Select "Automatic coding" mode. Press •F12“ to continue.
Wait until the message "Coding was completed successfully" appears. Press
•F12“ to continue.
11.6
Read out the fault memories of all systems, work through any existing faults and erase the
fault memories.  Workshop Manual '033500 Fault memory for on-board diagnosis'
11.7
Switch off ignition and disconnect 9900 - PIWIS Tester 3.
11.8
Carry out a function test on the “sports exhaust system”.
The exhaust flaps open when you press the "Twin tailpipe" button. The noise of the exhaust
motor can be heard.
11.9
26 01 31 01:
Disconnect battery charger. (  Workshop Manual '2X00IN Battery trickle charging').
–Installing sports exhaust system–
Includes:
Removing and installing exhaust system, rear skirt, strip for
switches and rear BCM; replacing catalytic converters and
main silencer; installing wire harness; coding sports exhaust
system and strip for switches.
Labor time: 724 TU
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.
© 2020 Porsche Cars North America, Inc.
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