Checking pre-load of tapered roller bearing for drive pinion
WARNING: This page is about a different car, the 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
- Rotate drive pinion 5 turns in both directions to settle tapered roller bearing.
NOTE:
- If drive pinion cannot be turned by hand, insert a bolt M10 x 20 in drive pinion head and turn pinion by using a tool on this bolt.
- Remove bolt again.
- Install measuring tools and secure with bolt (arrow) to transmission housing.
- Position dial gauge (3 mm measuring range) center on transmission cover and set to "0" with 2 mm pre-load.
- Loosen transmission cover bolts and turn drive pinion several times.
- If correct shims have been selected dial gauge will now indicate following value:
- 0.05... 0.15 mm
- Retighten transmission cover bolts to 22 Nm.
- Remove measuring tools.
- Secure bolt M10 x 20 on drive pinion head and turn drive pinion 8 turns to allow tapered roller bearing to settle.
- Remove bolt.