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)

AfterSales

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Page 1 of 19

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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

AfterSales

Service

Technical Information

34/19

ENU

3965

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

AfterSales

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Technical Information

34/19

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

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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

AfterSales

Qty.
1 ea.
4 ea.
2 ea.
X ea. 2)
1 ea.

Service

Technical Information

34/19

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

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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.