Cleaning the Input Shaft
WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Spray universal oil (part no. 1161657) on the splines.
Brush with a brass wire brush.
Wipe the splines clean.
Repeat the cleaning process one more time.
Wipe the splines clean thoroughly.
check that there is no damage or dirt left on the input shaft.