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Order the typical coolant flow path in a liquid-cooled engine (start with coolant leaving the radiator’s lower/outlet side).

  • Coolant reaches the thermostat housing area

  • Thermostat opens (when hot enough), allowing flow to the upper radiator hose

  • Airflow removes heat; coolant exits cooler at the radiator outlet (lower tank)

  • Coolant flows through engine block and cylinder head passages, absorbing heat

  • Hot coolant enters the radiator (top tank) and flows through tubes/fins

  • Coolant leaves the radiator outlet (lower hose)

  • Water pump pulls and pushes coolant into the engine block

Course
Modern Passenger Car Systems: A Practical Beginner’s Guide
9 units41 lessons
Topics
Automotive TechnologyAutomotive EngineeringMechanical Engineering (applied, low-math focus)Electrical and Electronic Engineering (automotive focus, conceptual level)Computer Engineering / Embedded Systems (ECUs, OBD, networks, conceptual level)Control Systems / Mechatronics (modern electronically controlled systems, conceptual)
About this course

Explore how modern passenger cars work as integrated systems, from the engine to the taillights, using clear, low-math explanations. The focus spans the internal combustion engine, its support systems, and how power flows through the drivetrain to the wheels. It covers steering, suspension, braking, and the fundamentals of automotive electrical and electronic systems including ECUs, sensors, and vehicle networks. Safety, comfort, and driver-assist systems are introduced conceptually, along with practical maintenance basics and simple diagnostic approaches for real-world understanding.