When only replacing the front crankshaft seal

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Installing New Seal Using Tool 9995455

Courtesy of VOLVO CARS OF NORTH AMERICA.

Remove the old seal using a groove-cut chisel or 9995919
Clean the mating surface
Grease and install a new seal.
Use tool 9995455
Press in the seal using a drift and the crankshaft center nut as shown.
NOTE: Ensure that the crankshaft does not rotate when pressing in the crankshaft seal.