SSP 222 – Electronically Mapped Cooling System
1.6‑Litre 4-Cylinder Engine with Electronically Controlled Cooling
The 1.6-litre 4-cylinder in-line engine (code APF) with a power output of 74 kW is the first engine to feature the newly developed electronically mapped cooling system. Further engines with this system are in development.
Key features of the new system include:
Load-dependent temperature setpoint input
Thermostatic control of coolant temperature
Fan cut-in control
Advantages of adapting coolant temperature to the current operating state:
Improved fuel economy in the part-throttle range
Reduction of raw CO and HC emissions
This Self-Study Programme explains the design and function of this technical innovation.