Install the heater unit
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.
Check the seals.
Place the housing over the studs and tighten the nuts by hand.
Install the connector by the floor heater (1x bracket) and connect the heater pipes.
Press forcefully on the housing during tightening. Tighten the attaching nuts to 25 Nm.
Install the power unit (tightening torque 25 Nm for cars with AC).
Install the housing's top part (partition).
Plug in the connectors.