When the steering wheel is straight:

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.

Fig 1: Identifying Steering Wheel Screw

Courtesy of VOLVO CARS OF NORTH AMERICA.

Tighten the screw in the center of the steering wheel to 40 Nm .

Ensure that SRS lamp is extinguished (i. e. that no diagnostic trouble code (DTC) is present).