1 - Rear Transfer Gear Housing - Damage, Possible Causes And Repair Measures

Work Procedure:

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-1C):

Leak areas 1A and 1B

Rear transfer gear in output shaft area (> Rear transfer gear - output shaft area): Oil coating, with some drops forming (-Arrows- )

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Rear transfer gear - output shaft area

Leak area 1C

Rear transfer gear in lower housing area (> Rear transfer gear - lower housing area): Coating of oil (-Arrows- )

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

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

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Sealing ring leaking

Repair measure (1A-1C):

Replace sealing ring on output shaft for rear transfer gear, see > 399255 REPLACING SEALING RING FOR TRANSFER GEAR (REAR OUTPUT SHAFT)

Parts required (1A-1C):

Part No.

Designation - Use

Qty.

958 341 199 00

> Sealing ring (35 x 72 x 8) - Output shaft for rear transfer gear

1 ea.

N 900 639 05

> Hex flange bolt, M8 X 18 - Damper to transfer gear

4 ea.

958 349 493 00

> Circlip - Rear cardan shaft to rear axle differential/transfer gear

2 ea.

958 111 220 XX ⁽¹⁾

=> Clamping sleeve
- Exhaust system

X ea. ⁽²⁾

955 301 115 01

> Screw plug - Oil inspection plug on transfer gear

1 ea.

⁽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-litre container is not permitted.

Labour operations

(1A-1C):

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 key (FES5)	39650	Transfer gear
Damage code (SA4)	5400	Oil leak