Parking Heaters 912-B And 912-D

Fig 1: Identifying Engine Coolant Heater

Courtesy of VOLVO CARS OF NORTH AMERICA.

The engine coolant heater is located inside the front fender, in front of the front left wheel arch.

Fig 2: Engine Coolant Heater Components (1 Of 2)

Courtesy of VOLVO CARS OF NORTH AMERICA.

Components: 

1. Control module
2. Fan shroud
3. Heat exchanger
4. Fuel pump (FP) (in front of the fuel tank)
5. Water pump.

Fig 3: Engine Coolant Heater Components (2 Of 2)

Courtesy of VOLVO CARS OF NORTH AMERICA.

Components on the engine coolant heater 

1. Coolant temperature sensor
2. Flame sensor
3. Overheat protection thermostat
4. Glow plugs.