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NHTSA ID Number: 10200885

Manufacturer Communication Number: No. 8-20

TSB/Document Date: 2021-09-02


Summary

Installation instructions for retrofitting a sports exhaust on the Cayenne S.


Information
The help of another person is required for this step.

1.4.4

Carefully lift the 2/3-split folding rear seat out of the vehicle via the boot.

Tequipment

Aug 16, 2021
Page 5 of 22

2

Cayenne (9YA)
2601

ENU

Installation and Conversion Instructions

8/20
CAUTION

Heavy components

Risk of pinching

Wear personal protective gear.

Get someone to help if necessary.
Loosen the (left) front seat (  Workshop Manual '720119 Removing and installing
the front seat')

1.4.5

Information
The help of another person is required for this step.
1.4.6
1.5

Expose the A-pillar area (left side) ( Figure 7
)
1
2
3
4
5
1.5.1

Aug 16, 2021
Page 6 of 22

Carefully lift the front seat (left) from the vehicle to the rear via the boot.





Front side-section trim panel
Footrest
Inner door sill trim (front)
A-pillar trim panel (lower part)
1/3 rear seat
Remove the side trim panel on
the front (  Workshop Manual
'702419 Removing and installing
the trim panel for the front side
panel').

Figure 7

1.5.2

Remove the footrest (  Workshop Manual '703519 Removing and installing the
footrest').

1.5.3

Remove the A-pillar trim panel (lower part) (  Workshop Manual '70571901
Removing and installing the A-pillar trim panel (lower part)').

Tequipment

Installation and Conversion Instructions
1.6

8/20

ENU

2601

2

Expose the B-pillar area (left side) ( Figure
8)
1
2
3
4
5
6
1.6.1

1.6.2






B-pillar trim panel (upper part)
B-pillar trim panel (lower part)
(Inner) door sill trim
C-pillar trim panel (lower part)
Side trim panel of the boot (left side)
Bulkhead cover
Loosen the B-pillar trim panel (upper
part) and leave it hanging on the
belt strap (  Workshop Manual
'70671901 Removing and installing
the B-pillar trim panel (upper part)').
Remove the inner door sill trim (

 Workshop Manual '680519

Removing and installing the inner
door sill trim')
1.6.3
1.7

Cayenne (9YA)

Figure 8

Remove the B-pillar trim panel (lower part) (  Workshop Manual '70671903
Removing and installing the B-pillar trim panel (lower part)').

Expose C-pillar/luggage compartment area
1.7.1

Remove the cover for the (rear) lock carriereBay logo (  Workshop Manual '703919
Removing and installing the cover for the front lock carriereBay logo').

1.7.2

Remove the luggage compartment light side trim (left/right) (  Workshop Manual
'964019 Removing and installing the luggage compartment light side trim').

1.7.3

Remove the side trim panel for the luggage compartment (left/right) (  Workshop
Manual '700319 Removing and installing the side trim panel for the rear luggage
compartment').

1.7.4

Remove C-pillar trim panel (lower part) on the left side (  Workshop Manual
'70681901 Removing and installing C-pillar trim panel (lower part)').

1.7.5

Push the 1/3 rear seat forward and remove the cover on the bulkhead.

CAUTION
Hot components

Risk of burns

Let hot components cool down.

Wear personal protective gear.

Tequipment

Aug 16, 2021
Page 7 of 22

2

Cayenne (9YA)
2601

ENU

1.8

Installation and Conversion Instructions

8/20

Work in the exhaust system area
1
2
3
4




Cover for rear underbody
Rear tunnel cover
Front underbody cover (rear section)
Tailpipe (left/right)

1.8.1

Remove rear underbody cover
and rear tunnel cover ( Figure 9
-1 and 2-)  Workshop Manual
'519419 Removing and installing
cover for rear underbody'

1.8.2

Remove the tailpipe (left/right) (
Figure 9 -4-,  Workshop Manual
'263419 Removing and installing
the tailpipe').

1.8.3

Secure catalytic converter exhaust
pipe(s) on the transmission support
Figure 9
using restraining strap for securing
loads, for example, to prevent them from bending down.

CAUTION
Heavy components

Risk of pinching

Wear personal protective gear.

Get someone to help if necessary.
1.8.4

2

Aug 16, 2021
Page 8 of 22

Remove exhaust system WITHOUT removing tunnel strut (  Workshop Manual
'260119 Removing and installing exhaust system').

Replacing engine noise control unit
2.1

Check whether there is a tie-wrap on the side tab on the engine noise control unit. Remove
the tie-wrap if necessary.

2.2

Disconnect plug connection for the standard engine noise control unit and remove engine
noise control unit with holder.

Tequipment

Installation and Conversion Instructions
2.3

Cayenne (9YA)
8/20

ENU

2601

2

Remove standard engine noise control unit
from control unit holder ( Figure 10).
1
2
3
4
5
6






Control unit holder
Engine noise control unit
Wire harness for engine noise
Line clip
Dome strut
Engine noise pulse sender (LHD
position)

Figure 10
2.4

Insert new engine noise control unit at the
underside in the control unit holder ( Figure
11 -LHD vehicle -).
1
2
3

2.5

3

Engine noise control unit
– Control unit holder.
– Locking/unlocking

Install the holder with the engine noise control
unit to the strut brace (plenum panel area
 Figure 10).

Routing and connecting wire harness for exhaust
flaps

Figure 11

Tequipment

Aug 16, 2021
Page 9 of 22

2

Cayenne (9YA)
2601

ENU

Installation and Conversion Instructions

8/20

Connections for wire harness for exhaust flaps
( Figure 12):
1
2
3
3.1

Connector for connection point (preparation
of exhaust flaps, 6-pin)
– Branch for exhaust flap (left)
– Branch for exhaust flap (right)
Make a plug-in connection (6-pin) between the
connection point (preparation) and exhaust
flaps
Figure 12
3.1.1

Expose the connection point (preparation = socket connector, 6-pin)
in the passenger compartment
of the vehicle, area of bulkhead
grommet, A-pillar left ( Figure 13
-LHD vehicle -).
1
2
3

3.1.2

3.1.3

3.1.4
3.2

Aug 16, 2021
Page 10 of 22

– Foam preparation (socket
connector, 6-pin)
– Grommet on bulkhead
(LHD vehicle)
Connector for wire
harness for exhaust flaps
(6-pin)

Push the foam preparation (socket
connector, 6-pin) onto the line on
the vehicle side.
Figure 13
Establish a connection between the
plug connection preparation and the wire harness for the exhaust flaps (6-pin)
Figure 13 -RHD vehicle -).
Push the foam over the plug connection (6-pin).

Lay the wire harness for the exhaust flaps to the rear of the vehicle as follows

Tequipment

Installation and Conversion Instructions

Cayenne (9YA)
8/20

ENU

2601

2

Route of the wire harness for exhaust flaps in
the vehicle ( Figure 14):
1
2
3

– Connection point (preparation)
– Grommet/stopper for luggage
compartment floor (left)
– Grommet/stopper for luggage
compartment floor (right)

Figure 14
3.2.1

A-pillar area, left ( Figure 15)
1
2
3

Socket connector (6-pin,
preparation)
– Pin connector (6-pin, wire
harness for exhaust flaps)
Fuses/relays (LHD
vehicles)
LHD vehicles: Connecting
point (preparation = socket
connector, 6-pin)) → along
wire harness A-pillar, left →
beneath fuses/relays (DO
NOT remove the relay carriereBay logo at most loosen it.) → Door sill
A-pillar, left
Figure 15

1234

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TSB/Document ID: No. 8-20

Replacement Service Bulletin Number:

MFR Communication Date: 2021-08-16

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: ENGINE AND ENGINE COOLING

MFR Component System:

MFR Component Subsystem:


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