Audi Workshop Service and Repair Manuals

Note:

Heed fitting instructions

Scope of optimisation:

→ 1 - Carbon-coated 1st and 2nd gear synchro-rings (both synchro-rings identical)

• ‒ Part no. 012 311 247 H

Distinguishing feature => Page 35-37

2 - 1st/2nd gear locking collar with modified friction surface taper angle

• ‒ Part no. 01E 311 255 F

3 - Complete repair set

• ‒ Part no. 01E 398 270

Important fitting instructions:

• ◆ → New synchro-rings for 1st and 2nd gear feature a wear-resistant carbon coating -arrow-. The taper angle has also been altered.
• ◆ On the 1st/2nd gear locking collar, the friction surface taper angle has been matched to that of the synchro-rings.
• ◆ Carbon-coated synchro-rings are only to be fitted in conjunction with the optimised locking collar.
• ◆ On gearboxes fitted as standard with optimised 1st and 2nd gear synchronisation, the synchro-rings can also be replaced separately. Distinguishing feature => Page 35-37
• ◆ Optimised synchronisation is a repair option for all 01E gearboxes.

Part no. for complete repair set: 01E 398 270

Optical distinguishing feature of synchro-rings

A - Optimised synchro-ring with carbon coating

• ‒ With recesses in friction surface -arrows-

B - Previously fitted synchro-ring with molybdenum coating

• ‒ Graphite grey, slightly porous friction surface with no recesses

C - Previously fitted synchro-ring with fine thread