Installing the glow plug for the engine coolant heater
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
Tighten the glow plug by hand. Tighten to 15 Nm .
Reconnect the protective socket.
Ensure that the cable is not trapped or too firmly pressed.