Attachment Bulletin # 170406

Group: 17

Number: 04-06

Date: Dec 13, 2004

Subject:
Coolant Leak at Oil Cooler Hoses

Model(s):
A4, A6 w/2.7L V6 (Eng. code APB, BEL) 2000 > 2005
A4, A6 w/2.8L V6 (Eng. code AHA, ATQ) 1998 > 2001
A4, A6 w/3.0L V6 (Eng. code AVK) 2002 > 2005

Supersedes T.B. Group 17 Number 02-01 dated Apr. 8, 2002 due to added illustration showing new oil filter with installation instructions printed on filter.

Condition

Coolant leaking at oil cooler hoses.

May be caused by oil cooler turning when removing or installing the oil filter.

Service

When replacing the oil filter:

- Observe oil cooler when loosening oil filter.

Note:
If necessary, hold oil cooler while removing filter. If oil cooler moves too far; damage to coolant hoses may result!

If oil cooler moves from its original position:





- With oil filter removed, loosen oil cooler nut (arrow) and adjust cooler back to its original position (against stop -white arrow- if equipped).

- Check oil cooler hoses.

^ Cooler hoses should not be twisted or pinched.

- Tighten oil cooler nut (Torque = 30 Nm).

- Install oil filter and tighten by hand making sure that oil cooler does not move.

- Inspect cooler hoses to ensure they are not twisted or pinched.

Tip:





- Installation instructions are now printed on oil filters (no change in part Numbers).