Self Study Program 222 – Electronically Mapped Cooling System
Self Study Program 222 – Electronically Mapped Cooling System Design and Function PDF free online
The 1.6-litre 4-cylinder in-line engine (code APF) with a power output of 74 kW is the first engine in which the newly developed
electronically mapped cooling system
will be used. Further engines are in preparation. Load-dependent temperature setpoint input, thermostatic control of coolant temperature and fan cut-in control are the special features of the new system.
The advantages of adapting the coolant temperature to the current operating state are:
- greater fuel economy in the part-throttle range
- reduction of raw CO and HC emissions
This Self-Study Programme describes the design and function of this technical innovation.
- General information
- Cooling the engine with water
- The coolant temperature level
- Electronically controlled cooling system
- Main components
- Coolant distributor housing
- Coolant control unit
- Cooling circuit
- Small cooling circuit
- Large cooling circuit
- Electrical function
- System overview
- Simos 3.3 engine management system
- The coolant temperature sender
- Thermostat for mapped engine cooling F265
- Electrical cooling fan activation
- Function diagram
- Test your knowledge
The Self-Study Programme is not a Workshop Manual.
Please always refer to the relevant Service Literature for all inspection, adjustment and repair instructions.