High stall speed
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
The test conditions described in Check the stall speed when checking the line pressure above have been met.
Is acceleration from 0-100 km/h normal?
If the stall speed recorded exceeds the normal value by more than 300 RPM:
Replace the transmission