audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Removing and installing reverse gear wheel > < Dismantling and assembling drive pinion and hollow shaft
5-Speed Manual Gearbox 01A (4WD)
Dismantling and assembling drive pinion and hollow shaft
Reinforcements from 08.98 > (as of gearbox build date 17 08 8) in the area of the 4th gear wheel
 
N35-0275

→ The following components are affected by this modification:

1 - Hollow shaft

    • ‒ Distinguishing features => Fig.1

2 - 4th gear wheel

    • ‒ Distinguishing features => Fig.2

3 - Circlip

    • ‒ Distinguishing features => Fig.2

4 - Needle roller bearing

    • ‒ Distinguishing features => Fig.3

5 - 5th speed sliding gear

    • ‒ Distinguishing features => Fig.3

Notes:

  • ◆ Never mix up components from gearboxes with reinforced 4th gear with components from gearboxes without reinforced 4th gear. Part allocation:

=> Parts List

  • ◆ Dismantling and assembly of the new parts is carried out as described in the Workshop Manual.

 
A35-0015

→ Fig.1    Hollow shaft identification

Hollow shaft 1
new version
08.98 ä

Hollow shaft 2
old version
ä 08.98

For reinforced 4th gear wheel

For non-reinforced 4th gear wheel

Dimension a

approx. 27.5 mm

approx. 23.8 mm

Dimension b

approx. 40.0 mm

approx. 43.5 mm

with chamfered edges under the input shaft splines
-Arrow 4-

with tongue over the input shaft splines
-Arrow 3-

 
A35-0013

→ Fig.2    Distinguishing features of circlips and gear wheels

Circlip

-1-
New version
08.98 ä

-2-
Old version
ä 08.98

Dimension a

approx. 34.5 mm

approx. 38.0 mm

4th gear
wheel

-3-
New version
08.98 ä

-4-
Old version
ä 08.98

Dimension b

approx. 40.0 mm

43.5 mm

 
A35-0014

→ Fig.3    Distinguishing features of needle roller bearings and 5th speed sliding gears

Needle bearing

-1-
New version
08.98 ä

-2-
Old version
ä 08.98

Dimension a

approx. 26,8 mm

approx. 24,8 mm

Sliding gear for
5th speed

-1-
New version
08.98 ä

-2-
Old version
ä 08.98

Without shoulder

with shoulder -arrow-

Removing and installing reverse gear wheel > < Dismantling and assembling drive pinion and hollow shaft