Installing the brake fluid reservoir
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.
Put two new "O" rings into the master cylinder.
Press the reservoir onto the master cylinder. Note the position of the sensor connection.
Install the retaining pin.