Overview - Spur Gear For Bearing And Center Differential

WARNING: This page is about a different car, the 2013 Audi S4, 2012 Audi S4, 2011 Audi S4, and 2010 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Spur Gear And Center Differential Bearing

Courtesy of AUDI OF AMERICA, LLC

Output Shaft
Transmission Cover
Outer Race/Tapered Roller Bearing
- Removing and installing. Refer to TRANSMISSION COVER ASSEMBLY OVERVIEW -item 4- "Outer Race/Tapered Roller Bearing".
Inner Race / Tapered Roller Bearing
- Transmission cover side
- Removing. Refer to Figure
- Installing. Refer to Figure
Needle Bearing
- For mounting the impeller wheel/drive gear on the output shaft
Output Wheel/Drive Wheel
Inner Race / Tapered Roller Bearing
- Gear carrier side
- Removing. Refer to Figure
- Installing. Refer to Figure
Outer Race/Tapered Roller Bearing
- Removing. Refer to Figure
- Installing. Refer to Figure
Shim
- For bearing pre-load on the spur gear tapered roller bearing; refer to -item 6- Output Wheel/Drive Wheel.
- Selecting thickness. Refer to SPUR GEAR TAPERED ROLLER BEARING PRE-LOAD, DETERMINING .
Gear Carrier
Spacer Sleeve
Small Ball Bearing
- For the center differential
- Removing. Refer to Figure
- Installing. Refer to Figure
Center Differential
- Servicing only by the manufacturer
Large Ball Bearing
- For the center differential
- Removing. Refer to Figure
- Installing. Refer to Figure