122-D2B8P-10

Service
Technical Information
34/19
ENU
3965
3
Complaint - Repair Instructions in the Event of Transfer Case Oil Leaks: Follow
recommended course of action (34/19)
Model Line:
Cayenne (92A)
Model Year:
As of 2011 up to 2018
Subject:
Transfer Case
Information:
Measures and repair instructions for repairing oil leaks on the transfer case depending on the
exact location of the leak.
Note: Transfer case is also known as Transfer gear.
Remedial
Action:
Before doing any other work, identify the exact cause(s) of the leak(s) based on the examples and carry
out the relevant repair measure(s).
Overview - Location of leaks on transfer gear
1
2
3
Location of leaks (transfer gear)
– Rear transfer gear housing (oil coating)
– Front transfer gear housing (bottom) (oil leak/oil coating)
– Lower transfer gear housing (oil coating)
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Overview — Location of leaks and exact leak area, possible causes and repair measures
You will find detailed repair descriptions for the relevant leak areas at the end of this overview.
Leak
1 – Rear transfer
gear housing
2 – Front transfer
gear housing
(bottom)
3 – Lower transfer
gear housing
Sep 3, 2019
Page 2 of 19
Leak area
Possible cause
Repair measure/procedure
Leak areas 1A - 1C
Sealing ring on rear
output shaft leaking
Replace sealing ring on output shaft
for rear transfer gear.
For instructions, see description of
leak areas 1A – 1C below.
Sealing ring on drive
shaft for transfer
gear leaking
Replace inner sealing ring on drive
shaft for transfer gear.
For instructions, see description of
leak area 2A below.
Sealing ring on
output shaft for main
transmission leaking
Replace rear sealing ring on output
shaft for main transmission.
For instructions, see description of
leak area 2B below.
Transfer gear housing
leaking (cracked)
Replace transfer gear.
For instructions, see description of
leak area 2C below.
Sealing ring on output
shaft for front transfer
gear leaking
Replace sealing ring on output shaft
for front transfer gear.
For instructions, see description of
leak area 3A below.
Rear left transfer
gear housing leaking
(sealant defective)
Replace transfer gear.
For instructions, see description of
leak area 3B below.
Leak area 2
Leak area 3
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Technical Information
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3
Outer right transfer
gear housing leaking
(sealant defective)
Replace transfer gear.
For instructions, see description of
leak area 3C below.
Oil leak from leak
area "Front transfer
gear housing (bottom)"
See Location of leak "2 – Front transfer
gear housing (bottom)"
1 - Rear transfer gear housing - Damage, possible causes and repair measures
Work
Procedure:
Leak areas
(1A-1C):
In the event of leaks on the rear transfer gear housing, check possible cause(s) and carry out the
suggested repair measure.
Leak areas 1A and 1B
Rear transfer gear in output shaft area ( Rear transfer
gear — output shaft area): Oil coating, with some drops
forming ( Rear transfer gear — output shaft area
-Arrows-)
Rear transfer gear — output shaft area
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Technical Information
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Leak area 1C
Rear transfer gear in lower housing area ( Rear transfer
gear — lower housing area): Coating of oil ( Rear
transfer gear — lower housing area -Arrows-)
Rear transfer gear — lower housing area
Cause (1A-1C): Cause of leaks at leak areas 1A-1C: Sealing ring on output
shaft for rear transfer gear leaking
 Sealing ring leaking
Sealing ring leaking
Repair measure Replace sealing ring on output shaft for rear transfer gear, see  Workshop Manual '399255 Replacing
(1A-1C):
sealing ring for transfer gear (rear output shaft)'.
Parts required
(1A-1C):
Part No.
958 341 199 00
N 900 639 05
958 349 493 00
958 111 220 XX 1)
955 301 115 01
Sep 3, 2019
Page 4 of 19
Designation
– Use
 Sealing ring (35 x 72 x 8)
– Output shaft for rear transfer gear
 Hex flange bolt, M8 X 18
– Damper to transfer gear
 Circlip
– Rear cardan shaft to rear axle differential/transfer gear
 Clamping sleeve
– Exhaust system
 Screw plug
– Oil inspection plug on transfer gear
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Qty.
1 ea.
4 ea.
2 ea.
X ea. 2)
1 ea.
Service
Technical Information
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ENU
3965
3
1) The complete part number must be determined for each vehicle using PET2.
2) The actual number of clamping sleeves required for each vehicle type must be determined using PET2.
Required
materials
(1A-1C):
Additional materials required for vehicles with hang-on transfer gear:
Sample Porsche part number.
Part No.
Designation
Qty.
000 043 305 63
 Transfer gear oil
0.85-liter container
(smaller quantity as required)
Additional materials required for vehicles with Torsen transfer gear:
Sample Porsche part number.
Part No.
Designation
Qty.
958 341 536 00
 Transfer gear oil
1-liter container
(smaller quantity as required)
Information
Only the quantities that are actually added must be invoiced when using original Porsche fluids. Invoicing
of 1-liter container is not permitted.
Labor
operations
(1A-1C):
LO
Designation
39925550
Replacing sealing ring for transfer gear
39903550
Checking and topping up oil for final drive
393519XX 1)
Removing and installing rear cardan shaft
1) The relevant labour operation for each vehicle type must be determined using the PCSS by specifying
the VIN.
PQIS coding:
For invoicing and documentation using PQIS, enter the following coding:
Location (FES5)
39650
Transfer gear
Damage type (SA4)
5400
Oil leak
2 - Front transfer gear housing (bottom) - Damage, possible causes and repair measures
Work
Procedure:
In the event of leaks on the front transfer gear housing (bottom), check possible cause(s) and carry out
the suggested repair measure(s).
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Leak area (2):
ENU
Technical Information
34/19
Leak area 2
Front transfer gear ( Front transfer gear housing
(bottom)): Oil leak/oil coating in area where it joins main
transmission ( Front transfer gear housing (bottom)
-Arrows-)
Front transfer gear housing (bottom)
Cause (2A):
Sealing ring on drive shaft for transfer gear leaking
 Sealing ring leaking
Sealing ring leaking
Repair measure Replace sealing ring for transfer gear, see  Workshop Manual '399255 Removing and installing sealing
(2A):
ring for transfer gear (inner drive)'.
Parts required
(2A):
Part No.
958 341 199 20
WHT 003 211
N 909 913 02
N 105 167 02
Sep 3, 2019
Page 6 of 19
Designation
– Use
 Sealing ring (55 x 80 x 8)
– Drive shaft for transfer gear
 12 point socket
– Transfer gear screws
 Hex flange bolt (combination)
– Cross member to outer body
 Hex flange bolt, self-locking
– Cross member to inner body
AfterSales
Qty.
1 ea.
10 ea.
4 ea.
2 ea.
N 900 639 05
958 349 493 00
958 349 490 10
958 349 491 10
955 301 115 01
958 111 220 XX 1)
3
Service
Technical Information
34/19
ENU
3965
4 ea.
 Hex flange bolt
– Damper to transfer gear
 Circlip
– Rear cardan shaft to transfer gear
 Circlip
– Front cardan shaft to front-axle final drive
 Circlip
– Front cardan shaft to transfer gear
 Screw plug
– Oil inspection plug on transfer gear
 Clamping sleeve
– Exhaust system
1 ea.
1 ea.
1 ea.
1 ea.
X ea. 2)
1) The complete part number must be determined for each vehicle using PET2.
2) The actual number of clamping sleeves required for each vehicle type must be determined using PET2.
Required
materials (2A):
Part No.
Designation
Qty.
000 043 305 73
 Extreme pressure grease
100g tube
(approx. 5–10 grams required
per vehicle)
Additional materials required for vehicles with hang-on transfer gear:
Sample Porsche part number.
Part No.
Designation
Qty.
000 043 305 63
 Transfer gear oil
0.85-liter container
(smaller quantity as required)
Additional materials required for vehicles with Torsen transfer gear:
Sample Porsche part number.
Part No.
Designation
Qty.
958 341 536 00
 Transfer gear oil
1-liter container
(smaller quantity as required)
Information
Only the quantities that are actually added must be invoiced when using original Porsche fluids. Invoicing
of 1-liter container is not permitted.
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Labor
operations
(2A):
ENU
Technical Information
34/19
LO
Designation
39925552
Replacing sealing ring for transfer gear
39903550
Checking and topping off oil for final drive
396519XX 1)
Removing and installing transfer gear
1) The relevant labor operation for each vehicle type must be determined using the PCSS by specifying
the VIN.
PQIS coding:
For invoicing and documentation using PQIS, enter the following coding:
Location (FES5)
39650
Transfer gear
Damage type (SA4)
5400
Oil leak
Cause (2B):
Sealing ring on output shaft for main transmission leaking
 Sealing ring leaking
Sealing ring leaking
Repair measure Replace sealing ring on rear output shaft, see  Workshop Manual '387055 Replacing sealing ring for
(2B):
rear output shaft'.
Parts required
(2B):
Part No.
955 321 189 00
WHT 003 211
N 909 913 02
Sep 3, 2019
Page 8 of 19
Designation
– Use
 Sealing ring (41 x 72 x 11)
– Output shaft for main transmission
 12 point socket
– Transfer gear screws
 Hex flange bolt (combination)
– Cross member to outer body
AfterSales
Qty.
1 ea.
10 ea.
4 ea.
Service
Technical Information
N 105 167 02
N 900 639 05
958 349 493 00
958 349 490 10
958 349 491 10
958 321 581 00
958 111 220 XX 1)
34/19
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 Hex flange bolt, self-locking
– Cross member to inner body
 Hex flange bolt
– Damper to transfer gear
 Circlip
– Rear cardan shaft to transfer gear
 Circlip
– Front cardan shaft to front-axle final drive
 Circlip
– Front cardan shaft to transfer gear
 Sealing ring
– ATF inspection plug
 Clamping sleeve
– Exhaust system
3
2 ea.
4 ea.
1 ea.
1 ea.
1 ea.
1 ea.
X ea. 2)
1) The complete part number must be determined for each vehicle using PET2.
2) The actual number of clamping sleeves required for each vehicle type must be determined using PET2.
Required
materials (2B):
Sample Porsche part number.
Part No.
Designation
Qty.
000 043 305 73
 Extreme pressure grease
000 043 305 05
 Transmission oil
100g tube
(approx. 5–10 grams required
per vehicle)
1-liter container
(smaller quantity as required)
Information
Only the quantities that are actually added must be invoiced when using original Porsche fluids. Invoicing
of 1-liter container is not permitted.
Labor
operations
(2B):
LO
Designation
38705550
Replacing output shaft seal
37023550
Checking and topping off ATF
396519XX 1)
Removing and installing transfer gear
1) The relevant labor operation for each vehicle type must be determined using the PCSS by specifying
the VIN.
PQIS coding:
For invoicing and documentation using PQIS, enter the following coding:
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Location (FES5)
39650
Transfer gear
Damage type (SA4)
5400
Oil leak
Cause (2C):
Transfer gear housing leaking (cracked)
 Transfer gear housing leaking (cracked)
Transfer gear housing leaking (cracked)
Repair measure Replace transfer gear, see  Workshop Manual '396519 Removing and installing transfer gear'.
(2C):
Parts required
(2C):
Part No.
Designation
– Use
Hang-on transfer gear
1 ea.
958 341 020 XX 1)
Torsen transfer gear
1 ea.
WHT 003 211
 12 point socket
– Transfer gear screws
 Hex flange bolt (combination)
– Cross member to outer body
 Hex flange bolt, self-locking
– Cross member to inner body
 Hex flange bolt
– Damper to transfer gear
 Circlip
– Rear cardan shaft to transfer gear
 Circlip
– Front cardan shaft to front-axle final drive
 Circlip
– Front cardan shaft to transfer gear
10 ea.
958 341 010 XX 1)
Qty.
or
N 909 913 02
N 105 167 02
N 900 639 05
958 349 493 00
958 349 490 10
958 349 491 10
Sep 3, 2019
Page 10 of 19
AfterSales
4 ea.
2 ea.
4 ea.
1 ea.
1 ea.
1 ea.
955 301 115 01
958 111 220 XX 1)
3
Service
Technical Information
34/19
ENU
3965
1 ea.
 Screw plug
– Oil inspection plug on transfer gear
 Clamping sleeve
– Exhaust system
X ea. 2)
1) The complete part number must be determined for each vehicle using PET2.
2) The actual number of clamping sleeves required for each vehicle type must be determined using PET2.
Required
materials (2C):
Part No.
Designation
Qty.
000 043 305 73
 Extreme pressure grease
100g tube
(approx. 5–10 grams required
per vehicle)
Additional materials required for vehicles with hang-on transfer gear:
Sample Porsche part number.
Part No.
Designation
Qty.
000 043 305 63
 Transfer gear oil
0.85-liter container
(smaller quantity as required)
Additional materials required for vehicles with Torsen transfer gear:
Sample Porsche part number.
Part No.
Designation
Qty.
958 341 536 00
 Transfer gear oil
1-liter container
(smaller quantity as required)
Information
Only the quantities that are actually added must be invoiced when using original Porsche fluids. Invoicing
of 1-litre container is not permitted.
Labor
operations
(2C):
LO
Designation
39903550
Checking and topping off oil for final drive
396519XX 1)
Removing and installing transfer gear
1) The relevant labor operation for each vehicle type must be determined using the PCSS by specifying
the VIN.
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PQIS coding:
ENU
Technical Information
34/19
For invoicing and documentation using PQIS, enter the following coding:
Location (FES5)
39650
Transfer gear
Damage type (SA4)
5400
Oil leak
3 - Lower transfer gear housing - Damage, possible causes and repair measures
Information
•
A (misleading) coating of oil on the bottom of the transfer gear (front and/or rear) can be caused by
a minimal leak on one of the drive train components (engine, main transmission, steering gear or
front-axle final drive).
•
This is an oil leak caused by heat and air flow while driving.
•
The component(s) responsible for this must be checked while warm by performing a leak test. The
leak must then be corrected if necessary and the transfer gear must be cleaned carefully.
Work
Procedure:
In the event of leaks on the lower transfer gear housing, check possible cause(s) and carry out the
suggested repair measure(s).
Leak area (3):
Leak area 3
Front transfer gear in lower housing area ( Front transfer
gear — lower housing area): Coating of oil ( Front
transfer gear — lower housing area -Arrows-)
Front transfer gear — lower housing area
Sep 3, 2019
Page 12 of 19
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Cause (3A):
3
Service
Technical Information
34/19
ENU
3965
Sealing ring on output shaft for front transfer gear leaking
 Sealing ring leaking
Sealing ring leaking
Repair measure Replace sealing ring on output shaft for front transfer gear, see  Workshop Manual '399255 Replacing
(3A):
sealing ring for transfer gear (front output shaft)'.
Parts required
(3A):
Part No.
958 341 199 10
958 349 490 10
958 349 491 10
955 301 115 01
Required
materials (3A):
Designation
– Use
 Sealing ring (35 x 62 x 8)
– Output shaft for front transfer gear
 Circlip
– Front cardan shaft to front-axle final drive
 Circlip
– Front cardan shaft to transfer gear
 Screw plug
– Oil inspection plug/oil drain plug on transfer gear
Qty.
1 ea.
1 ea.
1 ea.
2 ea.
Additional materials required for vehicles with hang-on transfer gear:
Sample Porsche part number.
Part No.
Designation
Qty.
000 043 305 63
 Transfer gear oil
0.85-liter container
(smaller quantity as required)
Additional materials required for vehicles with Torsen transfer gear:
Sample Porsche part number.
Part No.
Designation
Qty.
958 341 536 00
 Transfer gear oil
1-liter container
(smaller quantity as required)
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Information
Only the quantities that are actually added must be invoiced when using original Porsche fluids. Invoicing
of 1-liter container is not permitted.
Labor
operations
(3A):
PQIS coding:
LO
Designation
39925551
Replacing sealing ring for transfer gear
39021920
Removing and installing front cardan shaft
39905556
Changing oil for final drive
For invoicing and documentation using PQIS, enter the following coding:
Location (FES5)
39650
Transfer gear
Damage type (SA4)
5400
Oil leak
Cause (3B):
Rear left transfer gear housing leaking (sealant defective)
 Rear left transfer gear housing leaking
Rear left transfer gear housing leaking
Repair measure Replace transfer gear, see  Workshop Manual '396519 Removing and installing transfer gear'.
(3B):
Sep 3, 2019
Page 14 of 19
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Parts required
(3B):
Part No.
3
Service
Technical Information
34/19
ENU
3965
Designation
– Use
Hang-on transfer gear
1 ea.
958 341 020 XX 1)
Torsen transfer gear
1 ea.
WHT 003 211
 12 point socket
– Transfer gear screws
 Hex flange bolt (combination)
– Cross member to outer body
 Hex flange bolt, self-locking
– Cross member to inner body
 Hex flange bolt
– Damper to transfer gear
 Circlip
– Rear cardan shaft to transfer gear
 Circlip
– Front cardan shaft to front-axle final drive
 Circlip
– Front cardan shaft to transfer gear
 Screw plug
– Oil inspection plug on transfer gear
 Clamping sleeve
– Exhaust system
10 ea.
958 341 010 XX 1)
Qty.
or
N 909 913 02
N 105 167 02
N 900 639 05
958 349 493 00
958 349 490 10
958 349 491 10
955 301 115 01
958 111 220 XX 1)
4 ea.
2 ea.
4 ea.
1 ea.
1 ea.
1 ea.
1 ea.
X ea.2)
1) The complete part number must be determined for each vehicle using PET2.
2) The actual number of clamping sleeves required for each vehicle type must be determined using PET2.
Required
materials (3B):
Part No.
Designation
Qty.
000 043 305 73
 Extreme pressure grease
100g tube
(approx. 5–10 grams required
per vehicle)
Additional materials required for vehicles with hang-on transfer gear:
Sample Porsche part number.
Part No.
Designation
Qty.
000 043 305 63
 Transfer gear oil
0.85-liter container
(smaller quantity as required)
Additional materials required for vehicles with Torsen transfer gear:
Sample Porsche part number.
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Part No.
Designation
Qty.
958 341 536 00
 Transfer gear oil
1-liter container
(smaller quantity as required)
Information
Only the quantities that are actually added must be invoiced when using original Porsche fluids. Invoicing
of 1-liter container is not permitted.
Labor
operations
(3B):
LO
Designation
39903550
Checking and topping off oil for final drive
396519XX 1)
Removing and installing transfer gear
1) The relevant labor operation for each vehicle type must be determined using the PCSS by specifying
the VIN.
PQIS coding:
For invoicing and documentation using PQIS, enter the following coding:
Location (FES5)
39650
Transfer gear
Damage type (SA4)
5400
Oil leak
Cause (3C):
Outer right transfer gear housing leaking (sealant
defective)
 Outer right transfer gear housing leaking
Outer right transfer gear housing leaking
Repair measure Replace transfer gear, see  Workshop Manual '396519 Removing and installing transfer gear'.
(3C):
Sep 3, 2019
Page 16 of 19
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Parts required
(3C):
Part No.
3
Service
Technical Information
34/19
ENU
3965
Designation
– Use
Hang-on transfer gear
1 ea.
958 341 020 XX 1)
Torsen transfer gear
1 ea.
WHT 003 211
 12 point socket
– Transfer gear screws
 Hex flange bolt (combination)
– Cross member to outer body
 Hex flange bolt, self-locking
– Cross member to inner body
 Hex flange bolt
– Damper to transfer gear
 Circlip
– Rear cardan shaft to transfer gear
 Circlip
– Front cardan shaft to front-axle final drive
 Circlip
– Front cardan shaft to transfer gear
 Screw plug
– Oil inspection plug on transfer gear
 Clamping sleeve
– Exhaust system
10 ea.
958 341 010 XX 1)
Qty.
or
N 909 913 02
N 105 167 02
N 900 639 05
958 349 493 00
958 349 490 10
958 349 491 10
955 301 115 01
958 111 220 XX 1)
4 ea.
2 ea.
4 ea.
1 ea.
1 ea.
1 ea.
1 ea.
X ea. 2)
1) The complete part number must be determined for each vehicle using PET2.
2) The actual number of clamping sleeves required for each vehicle type must be determined using PET2.
Required
materials (3C):
Part No.
Designation
Qty.
000 043 305 73
 Extreme pressure grease
100g tube
(approx. 5–10 grams required
per vehicle)
Additional materials required for vehicles with hang-on transfer gear:
Sample Porsche part number.
Part No.
Designation
000 043 305 63
 Transfer gear oil
Qty.
0.85-liter container
(smaller quantity as required)
Additional materials required for vehicles with Torsen transfer gear:
Sample Porsche part number.
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Part No.
Designation
958 341 536 00
 Transfer gear oil
Qty.
1-liter container
(smaller quantity as required)
Information
Only the quantities that are actually added must be invoiced when using original Porsche fluids. Invoicing
of 1-liter container is not permitted.
Labor
operations
(3C):
LO
Designation
39903550
Checking and topping off oil for final drive
396519XX 1)
Removing and installing transfer gear
1) The relevant labor operation for each vehicle type must be determined using the PCSS by specifying
the VIN.
PQIS coding:
For invoicing and documentation using PQIS, enter the following coding:
Location (FES5)
39650
Transfer gear
Damage type (SA4)
5400
Oil leak
Cause (3D):
Oil leak/oil coating on bottom of front transfer gear
housing (area where it joins main transmission)
 Front transfer gear housing, bottom
Front transfer gear housing, bottom
Repair measure Leaks from the area where the transfer gear joins the main transmission can spread as far as the (lower)
(3D):
transfer gear output shaft area, see "Front transfer gear housing (bottom) - Damage, possible
causes and repair measures".
References:
Sep 3, 2019
Page 18 of 19
 Workshop Manual '387055 Replacing sealing ring for rear output shaft'
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Technical Information
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ENU
3965
3
 Workshop Manual '399255 Replacing sealing ring for transfer gear (rear output shaft)'
 Workshop Manual '399255 Removing and installing sealing ring for transfer gear (inner drive)'
 Workshop Manual '399255 Replacing sealing ring for transfer gear (front output shaft)'
 Workshop Manual '396519 Removing and installing transfer gear'
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.
© 2019 Porsche Cars North America, Inc.
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Sep 3, 2019
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