Tequipment

Aug 16, 2021
Page 11 of 22

2

Cayenne (9YA)
2601

ENU

Installation and Conversion Instructions

8/20
3.2.2

Door sill area, left ( Figure 16)
1
2
3

•

3.2.3

Door sill A-pillar, left → along
wire harness for door sill, left
(open cable ducts/holders if
necessary) → wheel housing,
rear left

Figure 16

Wheel housing area. left ( Figure
17)
1
2
3
4

5

•

Aug 16, 2021
Page 12 of 22

– Wire harness for exhaust
flaps
– Cable holder, door sill
B-pillar area (left)
– Cable duct, rear door sill
area (left)

– Cable duct, rear door sill
area (left)
– Cable duct, rear wheel
housing area (left)
– Fuse box in the boot (left)
– Grommet/stopper for
luggage compartment
floor, left (∅ 66.5 mm)
– Branch for exhaust flap,
right side

Figure 17

Door sill, left → above wheel housing, left → branch for exhaust flap (left) to
grommet/stopper for luggage compartment floor, left (beneath fuse/relay
carrier) → branch for exhaust flap, right of the rear end plate

Tequipment

Installation and Conversion Instructions
3.2.4

8/20

ENU

2601

2

Rear end plate area and
grommet/stopper for luggage
compartment floor ( Figure 18)
1
2
3
4

5

•

3.3

Cayenne (9YA)

– Branch for exhaust flap
(left)
– Branch for exhaust flap
(right)
– Fuse box in the boot (left)
– Grommet/stopper for
luggage compartment
floor, left (∅ 66.5 mm)
– Grommet/stopper for
luggage compartment
floor, right (∅ 46 mm)

Figure 18

Branch for exhaust flap (left) to grommet/stopper for luggage compartment
floor, left (beneath fuse box in luggage compartment (left) → branch for
exhaust flap on the right to rear closing panel → along rear closing panel (
Figure 18 -top-) → grommet/stopper for luggage compartment floor, right.

Lay the branch for the exhaust flap (left/right) to the underside of the vehicle
3.3.1

Loosen the fuse box with the holder
in the luggage compartment, rear
left, and turn it aside ( Figure 19,
 Workshop Manual '978409 fuse
box in the luggage compartment').
1
2

3.3.2

3.3.3

– Fuse box with holder
– Grommet (left = ∅ 66.5
mm)

Loosen the heat shield on the
underside of the vehicle in the area
of the grommet (right/left) and
stopper (right/let) and bend it down
slightly.

Figure 19

Remove the stoppers in the luggage compartment floor (left = ∅ 66.5 mm/right
= ∅ 46 mm). The stopper is replaced by a corresponding grommet (see parts
package).

Tequipment

Aug 16, 2021
Page 13 of 22

2

Cayenne (9YA)
2601

ENU

Installation and Conversion Instructions

8/20
3.3.4

ONLY if a grommet with several
lines is installed on the underside
(including an exhaust flap branch
(left/right of the standard rear
silencer  Figure 20):
1
2
3

•

•
•
•

•

1
2
3
3.3.5

Remove grommet(s) (left/right)
with branches and guide it into
Figure 20
the passenger compartment.
Remove the connector housing from the respective exhaust flap branch
(left/right of the standard rear silencer).
Spread the grommet using a three mandrel pliers for hoses and grommets
(commercially available) and remove adhesive residue from the grommet.
CAREFULLY guide the exhaust flap standard branch through the grommet
into the passenger compartment and wrap it with insulating tape and secure it
.
Guide the new branch for the exhaust flap (left/right) through the neck of the
grommet (see also 3.3.6) OR through another hole in the grommet collar
( Figure 21) CAREFULLY to the underside of the grommet.
– Sleeve
– Branch for exhaust flap
(left/right)
– Additional electric line

ONLY if a grommet is installed with
the exhaust flap branch (left/right of
the standard rear silencer):
•

•

Aug 16, 2021
Page 14 of 22

– Sleeve
– Branch for exhaust flap
– Exhaust flap (standard rear
silencer)

Remove grommet(s) with
branch connections to the
exhaust flap (left/right)
and guide it/them into the
passenger compartment.
Tie back the exhaust flap
branch (left/right) with the
connector and grommet
on the wire harness on the
vehicle side in the passenger
compartment.

Tequipment

Figure 21

Installation and Conversion Instructions
•

3.3.6

2

Guide the new branch for the
exhaust flap (left/right) through
the new grommet (left = ∅ 66.5
mm/right = ∅ 46 mm Figure
22) using three mandrel pliers and
an auxiliary line (Tekalan or Teflon
tube).
– Three mandrel pliers
– Grommet, right (∅ 46 mm)

Figure 22

Release the socket housing (4-pin,
see parts list) ( Figure 23 -LHD
vehicle -).
1
2

3.4.2

2601

Remove the stoppers (left = ∅ 66.5 mm/right = ∅ 46 mm).
Use a new grommet (left = ∅ 66.5 mm/right = ∅ 46 mm, see scope of
parts).

Installing the socket housing on the exhaust
flap branch
3.4.1

ENU

ONLY if stopper (left = ∅ 66.5 mm/right = ∅ 46 mm) is installed:

1
2
3.4

8/20

Use a new grommet (left = ∅ 66.5 mm/right = ∅ 46 mm, see scope of parts)
(see also 3.3.6).

•
•

3.3.7

Cayenne (9YA)

– Fuse
– Plug socket (4-pin)

Connect the lines with female
contacts and single-core seals (wire
harness for exhaust flaps) in the
socket housing (4-pin, see parts list)
as follows:
•

Figure 23

Left exhaust flap:
Plug socket (4-pin)

Line/function

Chamber 1

BN; 0.5² = Terminal 31 (Ground)

Chamber 2

SW/BN; 0.75 ² = Pulse Width Module (PWM)

Chamber 3

RT/WS; 0.5 ² = Terminal 87 (power supply, fuse

Chamber 4

GN/RT; 0.35 ² = Pulse Width Module out (PWM)

Tequipment

Aug 16, 2021
Page 15 of 22

2

Cayenne (9YA)
2601

ENU

Installation and Conversion Instructions

8/20
•

Right exhaust flap:
Plug socket (4-pin)

Line/function

Chamber 1

BN; 0.5² = Terminal 31 (Ground)

Chamber 2

SW/BL; 0.5 ² = Pulse Width Module (PWM)

Chamber 3

RT/WS; 0.5 ² = Terminal 87 (power supply, fuse

Chamber 4

RT / SW; 0.35 ² = Pulse Width Module out (PWM)

3.4.3

Lock the socket housing (4-pin, see parts list) ( Figure 23 -RHD vehicle -).

3.4.4

Wrap cables (4 x) with insulating tape from a distance of approx. 30 mm from the
connector (socket housing 4-pin) as far as the underbody.

3.4.5

Install corrugated hose 4.5 x 7.6 x
X to each branch from a distance of
approx. 30 mm from the connector
(socket housing 4-pin) to the
underbody ( Figure 24).
1
2
3
4
X
•
•

3.5

– Corrugated hose, 4.5 x
7.6 x X
– Connector (socket housing
4-pin)
– Branch for exhaust flap
(right)
– Tie-wrap
– approx. 30 mm
Left side: Corrugated hose, 4.5 x 7.6 x 220
Right side: Corrugated hose, 4.5 x 7.6 x 230

Check fuse assignment of exhaust flaps and
engine sound pulse generator in the fuse
box (left A-pillar footwell  Figure 25) (
Cayenne Driver's Manual, section on 'Fuses')
1
2
3.5.1

– Fuse strip A
– Fuse strip D
Check that slot A4 is inserted into
fuse strip A (exhaust flaps) and
secure with a new fuse if necessary.
Fuse: Nominal value 7.5 A

3.5.2

Aug 16, 2021
Page 16 of 22

Figure 24

Figure 25
Check that slot D3 is inserted into
fuse strip D (structure-borne noise control unit, engine noise generator) and secure
with a new fuse if necessary.

Tequipment

Installation and Conversion Instructions

Cayenne (9YA)
8/20

ENU

2601

2

Fuse: Nominal value 15 A
4

Install new exhaust system
4.1

Install new center silencer with new clamping
sleeve (∅ 65 x 88) (  Workshop Manual
'260119 Removing and installing exhaust
system').
1
2
3
4
5
6
7
8

–