Additional Heater And Parking Heater (Combustion PREHEATER Module) (1999-2004): Function: Functions

Fig 1: Additional Heater And Parking Heater

Courtesy of VOLVO CARS OF NORTH AMERICA.

The vehicle configuration can be read off to check what functions the car is equipped with. The following affect the function of the heater:

• Parking and additional heater function or additional heater function only (diesel engines)
• Parking heater or not (gasoline engines)
• Residual heater or not
• Electrical engine block heater (time controlled via the driver information module) or not.