Approved Engine Course 2 (AEC 2)

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Free

AEC2-M1 · Deeper maintenance and systems

2 lessons

AEC2-M1-A Servicing the fuel, cooling, lubrication and transmission systems thoroughly. Practice in examiner →

Servicing the fuel and air systems

Clean fuel and clean air are the heart of diesel reliability, and servicing them thoroughly is the AEC 2 holder's core skill. This lesson covers the fuel and air systems in more depth than the basics.

AEC2-L1.2

Cooling, lubrication and transmission

The cooling, lubrication and transmission systems all need routine servicing to stay reliable, and the AEC 2 holder maintains them. This lesson covers each in turn.

AEC2-M2 · Electrics and fault diagnosis

2 lessons

AEC2-M2-A The engine electrical system and a systematic approach to finding faults. Practice in examiner →

AEC2-L2.1

The engine electrical system

The electrical system starts the engine and keeps the batteries charged, and the AEC 2 holder must understand and maintain it safely. This lesson covers the batteries, the starting and charging circuits, and basic electrical checks.

AEC2-L2.2

Systematic fault diagnosis

Finding a fault quickly means working logically rather than guessing, and reading the clues the engine gives. This lesson covers a systematic approach to diagnosis and reading exhaust smoke.

Aligned to the published MCA syllabus. Official syllabus (GOV.UK).

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