Diagram

D7F engine

1. 1
   Engine
2. 2
   Radiator
3. 3
   "Hot" tank with permanent degassing
4. 4
   Heater matrix
5. 5
   Nozzle Ø 3 mm

The cooling fans are driven at high speed by the injection ECU if the coolant temperature is above 99°C.

If the temperature is below 96°C, the cooling fans stop running.

Water pump

Thermostat

Bleed screw

The expansion tank valve is brown in colour; the opening pressure is 1.2 bar.

E7J Engine

1. 1
   Engine
2. 2
   Radiator
3. 3
   "Hot" tank with permanent degassing
4. 4
   Heater matrix
5. 5
   Thermostat housing
6. 6
   Nozzle Ø 3 mm

The cooling fans are driven at high speed by the injection ECU if the coolant temperature is above 99°C.

If the temperature is below 96°C, the cooling fans stop running

Water pump

Thermostat

Bleed screw

Thermal switch

The expansion tank pressure relief valve setting is 1.2 bar (brown colour).

F8Q engine

1. 1

   Engine

2. 2

   Radiator

3. 3

   "Hot" tank with permanent degassing

4. 4

   Heater matrix

5. 5

   Thermostat housing

6. 6

   Nozzle Ø 3 mm

Water pump

Thermostat

Bleed screw

Thermal switch

The expansion tank pressure relief valve setting is 1.2 bar (brown colour).