Additional Heater

Fig 1: Identifying Heater And Timer

Courtesy of VOLVO CARS OF NORTH AMERICA.

Location in the car 

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

The timer is located in the center console inside the passenger compartment (only for parking heater function).

Fig 2: Identifying Control Module, Fan Shroud, Heat Exchanger, Fuel Pump, Water Pump And Outside Temperature Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

Components 

1. Control module
2. Fan shroud
3. Heat exchanger
4. Fuel pump (FP)
5. Water pump
6. Outside temperature sensor

Fig 3: Identifying Coolant Temperature Sensor, Flame Sensor, Overheat Protection Thermostat, Outside Temperature Sensor And Glow Plugs

Courtesy of VOLVO CARS OF NORTH AMERICA.

Heater components 

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

Fig 4: Control Module Timer

Courtesy of VOLVO CARS OF NORTH AMERICA.

Timer type 4 

The timer only when the car is equipped with parking heater function.