Overview - Location Of Leaks On Transfer Gear

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Location of leaks (transfer gear)

1	Rear transfer gear housing (oil coating)
2	Front transfer gear housing (bottom) (oil leak/oil coating)
3	Lower transfer gear housing (oil coating)

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	Leak area	Possible cause	Repair measure/procedure
1 - Rear transfer gear	Leak areas	Sealing ring on rear output shaft	Replace sealing ring on output shaft for rear transfer gear.
housing	1A - 1C	leaking	For instructions, see description of leak areas 1A - 1C below.
2 - Front transfer gear housing (bottom)	Leak area 2	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.
3 - Lower transfer gear housing	Leak area 3	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.
		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)"